Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Luton that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire. 7:40 pm - 9:45 pm SFO - LTN.Sun, 21 Apr SFO - LCY with Virgin Atlantic. 1 stop. Mon, 6 May LCY - SFO with Virgin Atlantic. 1 stop. from £516. London. £529 per passenger. ... Compare flight deals to London City from San Francisco International from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Find your vacation package to London with United Packages. Book cheap flights to London (LHR) with United Airlines. Enjoy all the in-flight perks on your London flight, including speed Wi-Fi. Top 21 Best Airlines To Fly From SFO To London 1. British Airways: British Airways is one of the oldest and most reputable airlines in the world, offering a wide range of flights from San Francisco to London. They have a wide range of aircraft, including the latest Airbus and Boeing models, and offer a generous frequent flyer program. ...Cheap Flights from San Francisco to Dublin (SFO-DUB) Prices were available within the past 7 days and start at $359 for one-way flights and $475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from San Francisco to Dublin with no change fee on ...Find flights to London from $551. Fly from San Francisco on Delta, Virgin Atlantic, KLM and more. Search for London flights on KAYAK now to find the best deal.Sun, Apr 28 SFO – LCY with SWISS. 1 stop. Thu, May 16 LCY – SFO with SWISS. 1 stop. from $670. London.$675 per passenger.Departing Thu, Nov 28, returning Wed, Dec 11.Round-trip flight with ITA Airways.Outbound indirect flight with ITA Airways, departing from San Francisco International on Thu, Nov 28, arriving in London City.Inbound ... The cheapest month for flights from London, Ontario to San Francisco is October, where tickets cost $394 on average. On the other hand, the most expensive months are February and November, where the average cost of tickets is $603 and $580 respectively. Find cheap flights from London to San Francisco International on Skyscanner. Book the best deals for your flights to SFO from LON. Skyscanner. Help; English (UK) EN Singapore $ SGD SGD ($) Flights. ... Sat, 4 May LGW - SFO with Norse Atlantic Airways (UK) 1 stop. from $417. San Francisco. $509 per passenger. Departing Sat, 24 Aug.Cheap Flights from San Francisco to Delhi (SFO-DEL) Prices were available within the past 7 days and start at $395 for one-way flights and $667 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from San Francisco to Delhi with no change fee on selected ...Deal found 4/17 $713. Pick Dates. One of the most popular airlines traveling from San Francisco to London is Delta. Flights from Delta traveling this route typically cost $729.66 RT. This price is typically 77% cheaper than other airlines that offer San Francisco to London flights. When booking this route, the cheapest RT price found was $566.Find cheap flights from SFO to LHR with United Airlines. Compare prices, dates, and fares for roundtrip or one-way tickets in economy or premium class.Find your cheap flight to London with Air France from $522. Discover our selection of return flights at the best price to London LON. ... From San Francisco (SFO) To London (LON) Round-trip / Economy: 05/18/2024 - 06/01/2024: From. $1,060* Seen: 2 days ago. From Miami (MIA) To London (LON) Round-trip / Economy: 05/17/2024 - 06/08/2024: …Return flights from San Francisco SFO to London LHR with Air France If you’re planning a round trip, booking return flights with Air France is usually the most cost-effective option. With airfares ranging from $2,012 to $2,012, it’s easy to find a flight that suits your budget.Flying time from SFO to London, United Kingdom. The total flight duration from SFO to London, United Kingdom is 11 hours, 15 minutes. This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing.San Francisco to London Heathrow Flights. Flights from SFO to LHR are operated 49 times a week, with an average of 7 flights per day. Departure times vary between 12:30 - 22:10. The earliest flight departs at 12:30, the last flight departs at 22:10. However, this depends on the date you are flying so please check with the full flight schedule ...Fly from San Francisco on TAP AIR PORTUGAL, Vueling, Iberia and more. Search for Europe flights on KAYAK now to find the best deal. ... (SFO) a hub for any airline? ... Istanbul $544 one-way - $990 round-trip; London $502 one-way - $704 round-trip. Morning departure is around 25% cheaper than an evening flight, on average*.Tue, 8 Oct SFO - LGW with TAP Air Portugal. 1 stop. from £408. San Francisco. £427 per passenger.Departing Wed, 25 Sep, returning Wed, 9 Oct.Return flight with Vueling Airlines and TAP Air Portugal.Outbound indirect flight with Vueling Airlines, departs from London Gatwick on Wed, 25 Sep, arriving in San Francisco International.Inbound ...Sun, Apr 28 SFO – LCY with SWISS. 1 stop. Thu, May 16 LCY – SFO with SWISS. 1 stop. from $670. London.$675 per passenger.Departing Thu, Nov 28, returning Wed, Dec 11.Round-trip flight with ITA Airways.Outbound indirect flight with ITA Airways, departing from San Francisco International on Thu, Nov 28, arriving in London City.Inbound ... There are 3 airlines that fly direct from San Francisco to London. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Virgin Atlantic at £466 for a one-way flight. On average, the best prices for this route can be found at Virgin Atlantic. Find flights to San Francisco from C$ 549. Fly from London on TAP AIR PORTUGAL, Scandinavian Airlines, British Airways and more. Search for San Francisco flights on KAYAK now to find the best deal.San Francisco. £385 per passenger.Departing Thu, 6 Mar, returning Fri, 21 Mar.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, …Cheap Flights from London (LHR) to San Francisco (SFO) Prices were available within the past 7 days and start at £407 for one-way flights and £419 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.While you'll still find an older version of the airline's business class on a very small number of London-bound flights, those planes are in the process of being updated, and most should be done by the end of this year. To make sure you're getting the best product, look for either a 1-2-1 or 1-1-1 seating arrangement, on the 777/787 and 767 ...Fly to London with British Airways and discover how the past meets the modern. Experience the Changing of the Guard at St James’ Palace then watch locals zip along the pavements on roller skates. Indulge in a traditional afternoon tea at the Ritz before spending the evening exploring the bars and clubs in Soho. Fill up on delicacies and ... Flights from San Francisco to London. Use Google Flights to plan your next trip and find cheap one way or round trip flights from San Francisco to London. Find the best... Find cheap flights from SFO to LHR with United Airlines. Compare prices, dates, and fares for roundtrip or one-way tickets in economy or premium class.Sun, Apr 28 SFO – LCY with SWISS. 1 stop. Thu, May 16 LCY – SFO with SWISS. 1 stop. from $670. London.$675 per passenger.Departing Thu, Nov 28, returning Wed, Dec 11.Round-trip flight with ITA Airways.Outbound indirect flight with ITA Airways, departing from San Francisco International on Thu, Nov 28, arriving in London City.Inbound ...Book one-way or return flights from San Francisco to London with no change fee on selected flights. Earn your airline miles on top of our rewards! Get great 2024 flight deals from San Francisco to London now! ... Flights from San Francisco (SFO) to London (LTN) Origin airport. San Francisco Intl. Destination airport. Luton: Distance. 5336: mi.Find the cheapest Business Class flights from San Francisco International and London Southend. We scour the Internet for the best Business, Premium Economy and First Class flight fares to London Southend, too. Check the difference in price as you search – you might just stumble on a last-minute low fare.Direct. Wed, 9 Oct LHR - SFO with British Airways. Direct. from £441. London. £445 per passenger.Departing Tue, 23 Apr, returning Wed, 1 May.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from San Francisco International on Tue, 23 Apr, arriving in London Heathrow.Inbound indirect flight with … Find flights to London from $283. Fly from San Francisco on WestJet, Air Canada, United Airlines and more. Search for London flights on KAYAK now to find the best deal. 1 stop. Sun, 24 Mar SFO - LCY with Virgin Atlantic. 1 stop. from £440. San Francisco. £442 per passenger.Departing Mon, 26 Feb, returning Sun, 10 Mar.Return flight with Lufthansa and SWISS.Outbound indirect flight with Lufthansa, departs from London City on Mon, 26 Feb, arriving in San Francisco International.Inbound indirect flight with ...Cheap Flights from San Francisco to London (SFO-LCY) Prices were available within the past 7 days and start at $446 for one-way flights and $543 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from San Francisco to London with no change fee on ...One of the best ways to fly to London is to book Virgin Atlantic Upper Class. Specifically, its new Upper Class seats are flown regularly between New York (JFK) and Los Angeles (LAX). You can also book Delta One with Virgin Points, but you can access better award availability on Virgin Atlantic’s own flights.The two airlines most popular with KAYAK users for flights from London to San Francisco are Virgin Atlantic and British Airways. With an average price for the route of $1,103 and an overall rating of 7.7, Virgin Atlantic is the most popular choice. British Airways is also a great choice for the route, with an average price of $1,087 and an ... Flying time from San Francisco, CA to London, United Kingdom. The total flight duration from San Francisco, CA to London, United Kingdom is 11 hours, 14 minutes. This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing. Book now San Francisco (SFO) to London (LHR) 04/30/2024 - 05/21/2024 Round-trip From USD580 false There are 3 airlines that fly direct from San Francisco to London. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Virgin Atlantic at £466 for a one-way flight. On average, the best prices for this route can be found at Virgin Atlantic. Cheap Flights from San Francisco to Delhi (SFO-DEL) Prices were available within the past 7 days and start at $395 for one-way flights and $667 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from San Francisco to Delhi with no change fee on selected ...The cheapest return flight ticket from San Francisco to London Heathrow Airport found by KAYAK users in the last 72 hours was for $562 on TAP AIR PORTUGAL, followed by …3 airports. The best one-way flight to London from San Francisco in the past 72 hours is $193. The best round-trip flight deal from San Francisco to London found on momondo in the last 72 hours is $566. The fastest flight from San Francisco to London takes 10h 19m. Direct flights go from San Francisco to London on Monday, Tuesday, Wednesday ... The cheapest month for flights from London, Ontario to San Francisco is October, where tickets cost $394 on average. On the other hand, the most expensive months are February and November, where the average cost of tickets is $603 and $580 respectively. San Francisco. LHR. London. $487. Roundtrip. found 1 day ago. Book one-way or return flights from San Francisco to London with no change fee on selected flights. Earn your airline miles on top of our rewards! Get great 2024 flight deals from San Francisco to London now! 08/24/24 - 09/03/24. from. $ 681*. Viewed: 9 hours ago. From. London (LHR) To. San Francisco (SFO) Roundtrip.Which airlines provide the cheapest flights from London City to San Francisco? In the last 3 days, SWISS offered the best one-way deal for that route, at $558. KAYAK users also found London City to San Francisco round-trip flights on British Airways from $600 and on Virgin Atlantic from $607.Tue, 1 Oct LHR - SFO with British Airways. Direct. from £440. London. £440 per passenger.Departing Wed, 1 May, returning Fri, 17 May.Return flight with British Airways.Outbound direct flight with British Airways departs from San Francisco International on Wed, 1 May, arriving in London Heathrow.Inbound direct flight with British Airways ...Prepare your stay in London (LON) by visiting our latest updates related to Covid-19. Find your cheap round-trip flight San Francisco London with Air France at $1,176. Discover our selection of cheapest return flights to London from San Francisco.Which airlines provide the cheapest flights from London City to San Francisco? In the last 3 days, SWISS offered the best one-way deal for that route, at $558. KAYAK users also found London City to San Francisco round-trip flights on British Airways from $600 and on Virgin Atlantic from $607. The cheapest return flight ticket from San Francisco to London Heathrow Airport found by KAYAK users in the last 72 hours was for $638 on United Airlines, followed by Finnair ($639). One-way flight deals have also been found from as low as $341 on SWISS and from $393 on Iberia. Thu, 19 Sep SFO - LHR with LEVEL. 1 stop. from ₹ 21,696. London. ₹ 25,896 per passenger.Departing Tue, 30 Apr.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from San Francisco International on Tue, 30 Apr, arriving in London Gatwick.Price includes taxes and charges.From ₹ 25,896, select.The two airlines most popular with KAYAK users for flights from London to San Francisco are Virgin Atlantic and British Airways. With an average price for the route of $1,103 and an overall rating of 7.7, Virgin Atlantic is the most popular choice. British Airways is also a great choice for the route, with an average price of $1,087 and an ...British Airways to London. $564. American Airlines to London. Find flights to London from $177. Fly from the United States on PLAY, Norse Atlantic UK and more. Fly from New York from $177, from Newark from $189 or from Stewart Intl. from $197. Search for London flights on KAYAK now to find the best deal.Find flights to London from $283. Fly from San Francisco on WestJet, Air Canada, United Airlines and more. Search for London flights on KAYAK now to find the best deal.Airfares from $405 One Way, $454 Round Trip from San Francisco to London. Prices starting at $454 for return flights and $405 for one-way flights to London were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Tue, Dec 3 - Wed, Dec 11.There are direct non-stop flights from San Francisco Airport (SFO) to London Heathrow with airlines other including Aer Lingus and Delta. There are also cheap one-stop and two-stop flights from San Francisco to London Heathrow with Lufthansa, SWISS Airlines, British Airways, and Iberia. Prepare your stay in London (LON) by visiting our latest updates related to Covid-19. Find your cheap round-trip flight San Francisco London with Air France at $1,176. Discover our selection of cheapest return flights to London from San Francisco. Which airlines provide the cheapest flights from London City to San Francisco? In the last 3 days, SWISS offered the best one-way deal for that route, at $558. KAYAK users also found London City to San Francisco round-trip flights on British Airways from $600 and on Virgin Atlantic from $607.There are 3 airlines that fly direct from San Francisco to London. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was …Find your cheap flight to London with Air France from $522. Discover our selection of return flights at the best price to London LON. ... From San Francisco (SFO) To London (LON) Round-trip / Economy: 05/18/2024 - 06/01/2024: From. $1,060* Seen: 2 days ago. From Miami (MIA) To London (LON) Round-trip / Economy: 05/17/2024 - 06/08/2024: …My dates are flexible. SHOW FARES. Include Nearby Airports. Search for a Delta flight round-trip, multi-city or more. You choose from over 300 destinations worldwide to find a flight that fits your schedule.Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight.Cheap Flights from London (LON) to San Francisco (SFO) Prices were available within the past 7 days and start at £250 for one-way flights and £409 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Prepare your stay in London (LON) by visiting our latest updates related to Covid-19. Find your cheap round-trip flight San Francisco London with Air France at $1,176. Discover our selection of cheapest return flights to London from San Francisco. Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight. Flights from San Francisco to London. Use Google Flights to plan your next trip and find cheap one way or round trip flights from San Francisco to London. Find the best... Based on KAYAK searches from the last 72 hours, if you fly from London, you should have a good chance of getting the best deal to San Francisco as it was the cheapest place to fly from.Prices were found for as low as £161 one-way and £307 for a return flight. Also in the last 72 hours, the most popular connection to San Francisco was from London and the …Discover our best Delta flight from San Francisco SFO to London LHR To find the best deals on flights to San Francisco from London with Delta, just enter your travel dates, filter by Delta, and hit search. You’ll find 2 flights to choose from and can sort by price, flight duration, and arrival or departure time.Sun, Apr 28 SFO – LCY with SWISS. 1 stop. Thu, May 16 LCY – SFO with SWISS. 1 stop. from $670. London.$675 per passenger.Departing Thu, Nov 28, returning Wed, Dec 11.Round-trip flight with ITA Airways.Outbound indirect flight with ITA Airways, departing from San Francisco International on Thu, Nov 28, arriving in London City.Inbound ... There are 3 airlines that fly direct from San Francisco to London. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Virgin Atlantic at £466 for a one-way flight. On average, the best prices for this route can be found at Virgin Atlantic. Amazing Virgin Atlantic SFO to LHR Flight Deals. The cheapest flights to Heathrow found within the past 7 days were $578 round trip and $444 one way. Prices and availability subject to change. Additional terms may apply. Sun, Apr 28 - Tue, May 14.Sun, Apr 28 SFO – LHR with Scandinavian Airlines. 1 stop. from $466. San Francisco.$466 per passenger.Departing Tue, Apr 30, returning Tue, May 7.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from London Heathrow on Tue, Apr 30, arriving in San Francisco International.Inbound ...Wed, 29 May SFO - LHR with Flair Airlines. 1 stop. from ₹ 32,632. London. ₹ 32,789 per passenger.Departing Tue, 30 Apr.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from San Francisco International on Tue, 30 Apr, arriving in London Heathrow.Price includes taxes and charges.From ₹ 32,789, select.Discover our best Delta flight from San Francisco SFO to London LHR To find the best deals on flights to San Francisco from London with Delta, just enter your travel dates, filter by Delta, and hit search. You’ll find 2 flights to choose from and can sort by price, flight duration, and arrival or departure time.The two airlines most popular with KAYAK users for flights from Oakland to London are Delta and Virgin Atlantic. With an average price for the route of $822 and an overall rating of 8.0, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $804 and an overall rating of 7.7.Wed, 29 May SFO - LHR with Flair Airlines. 1 stop. from ₹ 32,632. London. ₹ 32,789 per passenger.Departing Tue, 30 Apr.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from San Francisco International on Tue, 30 Apr, arriving in London Heathrow.Price includes taxes and charges.From ₹ 32,789, select.There are 3 airlines that fly nonstop from San Francisco to Paris. They are: Air France, French Bee and United Airlines. The cheapest price of all airlines flying this route was found with French Bee at $502 for a one-way flight. On average, the best prices for this route can be found at French Bee. Find your vacation package to London with United Packages. Book cheap flights to London (LHR) with United Airlines. Enjoy all the in-flight perks on your London flight, including speed Wi-Fi. Return flights from San Francisco SFO to London LHR with JetBlue Airways. If you’re planning a round trip, booking return flights with JetBlue Airways is usually the most cost-effective option. With airfares ranging from $772 to $772, it’s easy to find a flight that suits your budget. Prices and availability subject to change. The two airlines most popular with KAYAK users for flights from San Francisco to London are Delta and Virgin Atlantic. With an average price for the route of $852 and an overall rating of 8.0, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $854 and an overall rating of 7.7. The two airlines most popular with KAYAK users for flights from Oakland to London are Delta and Virgin Atlantic. With an average price for the route of $822 and an overall rating of 8.0, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $804 and an overall rating of 7.7.Prices were available within the past 7 days and start at $459 for one-way flights and $652 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Mon, Jul 8 - …Book now San Francisco (SFO) to London (LHR) 04/30/2024 - 05/21/2024 Round-trip From USD580 falseCheap Flights from London to San Francisco (LGW-SFO) Prices were available within the past 7 days and start at $286 for one-way flights and $526 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from London to San Francisco with no change fee on ...1st February 2023 Tara Shubbuck. Skyscanner’s latest study on flight prices reveals the best time to book flights to London to secure the best savings. To increase your chances of getting the cheapest flights to London, you should travel in January and book 23 weeks (almost 6 months) in advance. Roundtrip One way Multi-city.What is the cheapest flight from London Luton Airport to San Francisco? In the last 3 days, the lowest price for a flight from London Luton Airport to San Francisco was $258 for a one-way ticket and $665 for a round-trip.Deal found 4/17 $713. Pick Dates. One of the most popular airlines traveling from San Francisco to London is Delta. Flights from Delta traveling this route typically cost $729.66 RT. This price is typically 77% cheaper than other airlines that offer San Francisco to London flights. When booking this route, the cheapest RT price found was $566.The cheapest return flight ticket from San Francisco to London Heathrow Airport found by KAYAK users in the last 72 hours was for $638 on United Airlines, followed by Finnair ($639). One-way flight deals have also been found from …Compare flight deals to London from San Francisco from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to London start from $563 one-way. Flex your dates to find the best SFO-LHR ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest ...Find the best deals on flights from San Francisco International (SFO) to London Heathrow (LHR). Compare prices from hundreds of major travel agents and airlines, all in one …
found 2 hours ago. Book one-way or return flights from San Francisco to London with no change fee on selected flights. Earn your airline miles on top of our rewards! Get great …. Dc to austin
Fly to London Stansted • 14h 25m. Fly from San Francisco (SFO) to London Stansted (STN) SFO - STN. £367 - £887. Quickest way to get there Cheapest option Distance between. Flights from San Francisco to London. Use Google Flights to plan your next trip and find cheap one way or round trip flights from San Francisco to London. Find the best... Flights from San Francisco to London. Use Google Flights to plan your next trip and find cheap one way or round trip flights from San Francisco to London. Find the best...Search and compare business class flight deals to London. Fly from New York from $1,842, from Newark from $1,849, from Washington, D.C. from $1,940. Book your business class tickets to London.Mon, Oct 7 LGW – SFO with TAP Air Portugal. 1 stop. from C$736. London.C$752 per passenger.Departing Sun, Apr 21, returning Tue, May 7.Round-trip flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departing from San Francisco International on Sun, Apr 21, arriving in London Heathrow.Inbound indirect flight with …Are you searching for American Airlines flights from San Francisco to London? Find the best selections and fly in style. ... San Francisco (SFO) to. London (LHR) 04/30/24 - 05/07/24. from. $584* Updated: 26 minutes ago. Round trip. I. Economy. See Latest Fare. San Francisco (SFO) to. London (LHR)The two airlines most popular with KAYAK users for flights from London to San Francisco are Delta and Virgin Atlantic. With an average price for the route of $727 and an overall rating of 8.0, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $740 and an overall rating of 7.7. Tue, 1 Oct LHR - SFO with British Airways. Direct. from £440. London. £440 per passenger.Departing Wed, 1 May, returning Fri, 17 May.Return flight with British Airways.Outbound direct flight with British Airways departs from San Francisco International on Wed, 1 May, arriving in London Heathrow.Inbound direct flight with British Airways ... Book now San Francisco (SFO) to London (LHR) 04/30/2024 - 05/21/2024 Round-trip From USD580 falseFly to London with British Airways and discover how the past meets the modern. Experience the Changing of the Guard at St James’ Palace then watch locals zip along the pavements on roller skates. Indulge in a traditional afternoon tea at the Ritz before spending the evening exploring the bars and clubs in Soho. Fill up on delicacies and ...The cheapest return flight ticket from San Francisco to London Heathrow Airport found by KAYAK users in the last 72 hours was for $496 on Aer Lingus, followed by TAP AIR PORTUGAL ($567). One-way flight deals have also been found from as low as $352 on Vueling and from $380 on SWISS..