Prices were available within the past 7 days and start at CA $471 for one-way flights and CA $784 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Sault Ste. Marie to Las Vegas with no change fee on selected flights. Book one-way or return flights from Ontario to Las Vegas with no change fee on selected flights. Earn your airline miles on top of our rewards! Get great 2024 flight deals from Ontario to Las Vegas now! The average flight time from Long Beach, CA, to Las Vegas is 1 hour 10 minutes. How many Southwest flights occur weekly from Long Beach, CA, to Las Vegas? There are 109 weekly flights from Long Beach, CA, to Las Vegas on Southwest Airlines.Las Vegas. £29 per passenger. Departing Tue, 30 Apr, returning Tue, 30 Apr. Return flight with Frontier Airlines. Outbound direct flight with Frontier Airlines departs from Ontario International on Tue, 30 Apr, arriving in Las Vegas Harry Reid International. Return flights from Ontario ONT to Las Vegas LAS with American Airlines If you’re planning a round trip, booking return flights with American Airlines is usually the most cost-effective option. With airfares ranging from $186 to $186, it’s easy to find a flight that suits your budget. The two airlines most popular with KAYAK users for flights from Ontario to Las Vegas are Alaska Airlines and United Airlines. With an average price for the route of $67 and an overall rating of 8.1, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $202 and an overall ...Southwest Airlines and Frontier Airlines fly from Ontario to Las Vegas every 4 hours. Alternatively, Tufesa operates a bus from Ontario to Las Vegas twice daily. Tickets cost $45 - $65 and the journey takes 4h 15m. Airlines.Each day, there are between 5 and 11 nonstop flights that take off from Las Vegas and land in Ontario, with an average flight time of 1h 04m. The most common departure time is 10:00 a.m. and most flights take off in the morning.How much is the cheapest flight to Las Vegas? Prices were available within the past 7 days and start at $20 for one-way flights and $40 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Looking for cheap flights to Las Vegas?Cheap Air Canada flights from Sudbury to Las Vegas. Wed 8/5 10:35 a.m. YSB - LAS. 2 stops 14h 25m Air Canada. Wed 15/5 11:20 p.m. LAS - YSB. 1 stop 7h 35m Air Canada. Deal found 10/4 C$ 612. Pick Dates.The average price found was around $64, however the best flight deal found in the last week was $38 (a Frontier flight from Las Vegas to Ontario). Yes. Over 20 direct flights from Las Vegas to Ontario were found in the last week, with better deals found between $100 and $89. $100 is the best price for last minute Las Vegas to Ontario flights.found 1 hour ago. Tue, Jul 16 - Wed, Jul 17. LAS. Book one-way or return flights from Las Vegas to Ontario with no change fee on selected flights. Earn your airline miles on top …Cheap Flights from Dallas to Las Vegas (DFW-LAS) Prices were available within the past 7 days and start at $28 for one-way flights and $55 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Dallas to Las Vegas with no change fee on selected flights.$93 Cheap American Airlines flights Ontario (ONT) to Las Vegas (LAS) Prices were available within the past 7 days and start at $93 for one-way flights and $186 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.Cheap Flights from Boston to Las Vegas (BOS-LAS) Prices were available within the past 7 days and start at $63 for one-way flights and $125 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to Las Vegas with no change fee on selected flights.In-Flight information. The average flying time for a direct flight from Las Vegas, NV to Ontario is 0 hour 58 minutes. Most direct flights leave around 6:30 PDT. Southwest Airlines flight #1009 is today's earliest flight from Las Vegas, NV to Ontario (6:30 PDT, Boeing 737-700 (winglets) pax) Southwest Airlines flight #1201 is today's latest ... Direct. Wed, Apr 24 LAS – ONT with Frontier Airlines. Direct. from $37. Las Vegas.$38 per passenger.Departing Tue, Apr 30, returning Thu, May 2.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Ontario International on Tue, Apr 30, arriving in Las Vegas Harry Reid International.Inbound ... $29 Cheap Frontier Airlines flights Ontario (ONT) to Las Vegas (LAS) Prices were available within the past 7 days and start at $29 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.Las Vegas.$46 per passenger.Departing Mon, Jun 24, returning Wed, Jun 26.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from …To charter a private jet, call us +1-866-967-7483 or submit a flight request and a Private Aviation Advisor will contact you once we have found the best quotes for your flight. Download e-Brochure. Book a Private Jet to Las Vegas, Nevada from Ontario, California and enjoy access to all jet types.The cheapest month for flights from Sudbury, Ontario to Las Vegas is January, where tickets cost C$ 601 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is C$ 2,172 and C$ 1,553 respectively.Prices were available within the past 7 days and start at $121 for one-way flights and $247 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Burlington to Las Vegas with no change fee on selected flights. Earn your airline miles on top of our ...Restrictions Apply. Fort Lauderdale (FLL) to Las Vegas (LAS) From. $144. one-way. Restrictions Apply. New York (JFK) to Las Vegas (LAS) From. $194.F93891 and Las Vegas LAS to Ontario ONT Flights. This is a multi leg flight of Frontier Airlines F93891. Previous leg is Oklahoma City to Las Vegas. Other flights departing from Las Vegas LAS: WN2462, WN4563, B6948, NK876. Other flights arriving at Ontario ONT: AV530, AS3305, AA1837, WN5878. There are 5 airlines that fly nonstop from Toronto to Las Vegas. They are: Air Canada, Canada Jetlines, Flair Airlines, Porter Airlines and WestJet. The cheapest price of all airlines flying this route was found with Flair Airlines at $81 for a one-way flight. On average, the best prices for this route can be found at Flair Airlines. On average, a flight to Las Vegas costs $190. The cheapest price found on KAYAK in the last 2 weeks cost $17 and departed from Burbank. The most popular routes on KAYAK are Los Angeles to Las Vegas which costs $150 on average, and San Francisco to Las Vegas, which costs $192 on average. See prices from: Return flights from Ontario ONT to Las Vegas LAS with Delta. If you’re planning a round trip, booking return flights with Delta is usually the most cost-effective option. With airfares ranging from $284 to $284, it’s easy to find a flight that suits your budget. Prices and availability subject to change.The cheapest return flight ticket from San Antonio to Las Vegas found by KAYAK users in the last 72 hours was for $75 on Spirit Airlines, followed by Frontier ($76). One-way flight deals have also been found from as low as $31 on Frontier and from $37 on Spirit Airlines.Flights from Ontario to Las Vegas with American Airlines. Round trip. 1 Adult, Economy class. Book with cash. From. To. Depart. 04/26/24. today.Flights from Portland / Salem, OR (SLE) to Las Vegas, NV (LAS) Sunday. May 5. ONE-WAY FARES FROM $ 51*. 24 HR RISK-FREE CANCELLATION. Book Now. Price as of 4/21/2024. * Seats and days are limited. Fares may vary by destination, flight, and day of week and won't be available on some flights that operate during very busy travel times …Thu, May 9 LAS – ONT with Frontier Airlines. Direct. from C$51. Las Vegas.C$51 per passenger.Departing Sun, Apr 21, returning Tue, Apr 23.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Ontario International on Sun, Apr 21, arriving in Las Vegas Harry Reid International.Inbound direct ...To charter a private jet, call us +1-866-967-7483 or submit a flight request and a Private Aviation Advisor will contact you once we have found the best quotes for your flight. Download e-Brochure. Book a Private Jet to Las Vegas, Nevada from Ontario, California and enjoy access to all jet types. Cheap Flights from Las Vegas to Ontario (LAS-ONT) Prices were available within the past 7 days and start at $29 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Las Vegas to Ontario with no change fee on selected ... $29 Search for cheap flights deals from ONT to LAS (Los Angeles - Ontario Intl. to Harry Reid Intl.). We offer cheap direct, ... May 28 from Ontario to Las Vegas, returning Thu, May 30, priced at $56 found 22 hours ago. Wed, Jul 31 - Wed, Jul 31. ONT. Ontario. LAS. Las Vegas. $57 Roundtrip, found 1 hour ago. $57.The cheapest month for flights from Sudbury, Ontario to Las Vegas is January, where tickets cost C$ 601 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is C$ 2,172 and C$ 1,553 respectively. Get to Las Vegas with ease by booking a flight into Harry Reid International Airport ... Ontario/LA, CA (ONT) To. Las Vegas, NV (LAS) Departing Jul 3, 2024. From. $19* Cheap flights from Sudbury (YSB) to Las Vegas (LAS) Prices were available within the past 7 days and start at CA $309 for one-way flights and CA $565 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Sudbury to Las Vegas with no change fee on ...In-Flight information. The average flying time for a direct flight from Las Vegas, NV to Ontario is 0 hour 58 minutes. Most direct flights leave around 6:30 PDT. Southwest Airlines flight #1009 is today's earliest flight from Las Vegas, NV to Ontario (6:30 PDT, Boeing 737-700 (winglets) pax) Southwest Airlines flight #1201 is today's latest ...Find and book cheap flights from Ontario (ONT) to Las Vegas (LAS) starting at $29 for one-way and $53 for round trip. Compare prices, dates, airlines and deals on …Cheapflights has 20 direct flights from Toronto to Las Vegas under C$ 300. A good price for a direct flight from Toronto to Las Vegas is less than C$ 269. There are currently 20+ open flights from Toronto to Las Vegas within the next 7 days for less than C$ 300. Direct flights can be found on the following days: Monday.Find flights to Ontario from C$ 83. Fly from Las Vegas on WestJet, Flair Airlines and more. Search for Ontario flights on KAYAK now to find the best deal.There are 2 airlines that fly direct from Ontario to Las Vegas. They are Frontier and Southwest. The cheapest airline for this route is Frontier, with the best one-way deal …Round-trip. 1 adult. Economy. 0 bags. Add hotel. Thu 5/23. Thu 5/30. Search. Direct flights only. Search hundreds of travel sites at once for deals on flights to Ontario. ...and …Cheap Flights from Cincinnati to Las Vegas (CVG-LAS) Prices were available within the past 7 days and start at $50 for one-way flights and $100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Cincinnati to Las Vegas with no change fee on ...$29 Search for cheap flights deals from ONT to LAS (Los Angeles - Ontario Intl. to Harry Reid Intl.). We offer cheap direct, ... May 28 from Ontario to Las Vegas, returning Thu, May 30, priced at $56 found 22 hours ago. Wed, Jul 31 - Wed, Jul 31. ONT. Ontario. LAS. Las Vegas. $57 Roundtrip, found 1 hour ago. $57.C$ 163. Return. 1 adult. Economy. Nonstop flights only. Tue 23/4. Tue 30/4. Find Deals. The best prices from Niagara Falls to Las Vegas Harry Reid Intl are usually found in January or November, booked 83 days in advance, depart on a Monday or Sunday and return on a Friday. Compare flight deals to Las Vegas from Ontario from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Las Vegas start from $17 one-way. Yes, there are multiple flights from Windsor, Ontario to Las Vegas for under C$ 600. The cheapest flight booked recently is on Air Canada for just C$ 572, but on average you can expect to pay C$ 895.Find low fares and flexible options for flights from Ontario International Airport to Harry Reid International Airport with Southwest Airlines. Book your flight, hotel, rental car, … The cheapest return flight ticket from Las Vegas to Ontario found by KAYAK users in the last 72 hours was for $38 on Frontier, followed by CitizenPlane ($49). One-way flight deals have also been found from as low as $34 on Frontier and from $93 on American Airlines. Get up-to-the-minute flight information for arrivals at Ontario International Airport and see when your loved one is scheduled to land or take off. ... Ontario International Airport offers passengers nonstop service to 20+ destinations worldwide, including New York, Las Vegas, Mexico, and more. Read MoreC$ 163. Return. 1 adult. Economy. Nonstop flights only. Tue 23/4. Tue 30/4. Find Deals. The best prices from Niagara Falls to Las Vegas Harry Reid Intl are usually found in January or November, booked 83 days in advance, depart on a Monday or Sunday and return on a Friday.Apr 5, 2024 · Direct. from $47. Ontario.$48 per passenger.Departing Wed, Jun 19, returning Tue, Jul 2.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Las Vegas Harry Reid International on Wed, Jun 19, arriving in Ontario International.Inbound direct flight with Frontier Airlines departing from Ontario ... The cheapest month for flights from Sudbury, Ontario to Las Vegas is January, where tickets cost C$ 601 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is C$ 2,172 and C$ 1,553 respectively.Cheap Flights from Boston to Las Vegas (BOS-LAS) Prices were available within the past 7 days and start at $63 for one-way flights and $125 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to Las Vegas with no change fee on selected flights. Find and book cheap flights from Ontario (ONT) to Las Vegas (LAS) starting at $29 for one-way and $53 for round trip. Compare prices, dates, airlines and deals on Expedia.com. The total flight duration from Las Vegas, NV to Ontario, CA is 36 minutes. This is the average in-air flight time (wheels up to wheels down on the runway) based on actual flights taken over the past year, including routes like LAS to ONT. It covers the entire time on a typical commercial flight including take-off and landing.When are flight tickets from Ontario (ONT) to Las Vegas (LAS) the cheapest? Airlines adjust prices for flights from Ontario to Las Vegas based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.May 25 - May 31, 2024. $306. Book. Chicago To Las Vegas Flight deals. 28,000miles + $12. Book. Chicago To Las Vegas Flight deals. Use our interactive Delta Discover Map to help plan your trip. Search for your desired destination …Return flights from Ontario ONT to Las Vegas LAS with Delta. If you’re planning a round trip, booking return flights with Delta is usually the most cost-effective option. With airfares ranging from $284 to $284, it’s easy to find a flight that suits your budget. Prices and availability subject to change.Cheap flights from Burlington (BTV) to Las Vegas (LAS) Prices were available within the past 7 days and start at CA $196 for one-way flights and CA $376 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Burlington to Las Vegas with no change fee ...Use Google Flights to plan your next trip and find cheap one way or round trip flights from London to Las Vegas. Find the best flights fast, track prices, and book with confidence.Cheap flights from Thunder Bay (YQT) to Las Vegas (LAS) Prices were available within the past 7 days and start at CA $197 for one-way flights and CA $447 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Thunder Bay to Las Vegas with no change fee ...Cheap flights from London to Las Vegas. Cheap flights from London to Las Vegas is what WestJet does best. We fly into more than 100 destinations in North America, Central America, the Caribbean and Europe — including McCarran International Airport — which means we're able to take you wherever you want to go.Round-trip. 1 adult. Economy. 0 bags. Add hotel. Thu 5/23. Thu 5/30. Search. Direct flights only. Search hundreds of travel sites at once for deals on flights to Ontario. ...and … Each day, there are between 5 and 11 nonstop flights that take off from Las Vegas and land in Ontario, with an average flight time of 1h 04m. The most common departure time is 10:00 a.m. and most flights take off in the morning. The calculation of flight time is based on the straight line distance from Ontario, CA to Las Vegas, NV ("as the crow flies"), which is about 203 miles or 327 kilometers. Your trip begins in Ontario, California. It ends in Las Vegas, Nevada. Your flight direction from Ontario, CA to Las Vegas, NV is Northeast (44 degrees from North). The flight ... Return flights from Ontario ONT to Las Vegas LAS with American Airlines If you’re planning a round trip, booking return flights with American Airlines is usually the most cost-effective option. With airfares ranging from $186 to $186, it’s easy to find a flight that suits your budget. 1 hour and 29 minutes. Airlines with direct flights from Ontario (ONT) to Las Vegas (LAS) Southwest Airlines. M. T. W. T. F. S. Low-cost airline. 3-6 daily flights. Terminal 4 at …To find the best deals on flights to Ontario from Las Vegas with Hawaiian Airlines, just enter your travel dates, filter by Hawaiian Airlines, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time. Return flights from Ontario ONT to Las Vegas LAS with Hawaiian AirlinesListed are some of the best fares we've found on flights departing from London to Las Vegas in 2024. For more flight deals, be sure to check back very soon. Sun 26/5 3:25 p.m. YXU - LAS. 1 stop 9h 22m Air Canada. Fri 31/5 11:59 p.m. LAS - …The average flight time from Las Vegas to Ontario/LA is 1 hour 2 minutes. How many Southwest flights occur weekly from Las Vegas to Ontario/LA? There are 85 weekly flights from Las Vegas to Ontario/LA on Southwest Airlines. Does Southwest fly nonstop on weekdays from Las Vegas to Ontario/LA? Yes, Southwest flies nonstop from Las …Cheap Flights from London to Las Vegas (YXU-LAS) Prices were available within the past 7 days and start at $210 for one-way flights and $389 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 Las Vegas with no change fee on selected flights.Southwest Airlines and Frontier Airlines fly from Ontario to Las Vegas every 4 hours. Alternatively, Tufesa operates a bus from Ontario to Las Vegas twice daily. Tickets cost $45 - $65 and the journey takes 4h 15m. Airlines.The cheapest airfare for a Ontario - Las Vegas flight found in the last 15 days is from $2. The airports of Ontario and Las Vegas. Ontario is approximately 197 mi from Las Vegas. Flying from another airport in Ontario or to another airport in Las Vegas (if any) could be even more convenient.The cheapest month for flights from Sudbury, Ontario to Las Vegas is January, where tickets cost C$ 601 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is C$ 2,172 and C$ 1,553 respectively.Cheap Air Canada flights from Sudbury to Las Vegas. Wed 8/5 10:35 a.m. YSB - LAS. 2 stops 14h 25m Air Canada. Wed 15/5 11:20 p.m. LAS - YSB. 1 stop 7h 35m Air Canada. Deal found 10/4 C$ 612. Pick Dates.The two airlines most popular with KAYAK users for flights from London to Las Vegas are Delta and Virgin Atlantic. With an average price for the route of $1,048 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 $950 and an overall rating of 7.7.How long is the flight from Las Vegas to Ontario? The flight time from Las Vegas to Ontario is 56 minutes. The time spent in the air is 36 minutes. These numbers are averages. In reality, it varies by airline with Southwest being the fastest taking 55 minutes, and Frontier the slowest taking 1 hour, 2 minutes.
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Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time. Currently, September is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $1,042). Flying from Ontario to Bangkok in June is currently the most expensive (average of $1,641).Looking for flights from Ottawa, ON (YOW) to Las Vegas (LAS)? Fly Air Canada, voted "Best Airline in North America" by Skytrax and Global Traveler Magazine. Book your Ottawa, ON to Las Vegas flight today.Cheap flights from Burlington (BTV) to Las Vegas (LAS) Prices were available within the past 7 days and start at CA $196 for one-way flights and CA $376 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Burlington to Las Vegas with no change fee ...How much is the cheapest flight to Las Vegas? Prices were available within the past 7 days and start at $20 for one-way flights and $40 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Looking for cheap flights to Las Vegas?The cheapest return flight ticket from Las Vegas to Ontario found by KAYAK users in the last 72 hours was for $38 on Frontier, followed by CitizenPlane ($49). One-way flight …The cheapest return flight ticket from San Antonio to Las Vegas found by KAYAK users in the last 72 hours was for $75 on Spirit Airlines, followed by Frontier ($76). One-way flight deals have also been found from as low as $31 on Frontier and from $37 on Spirit Airlines.$29 Search for cheap flights deals from ONT to LAS (Los Angeles - Ontario Intl. to Harry Reid Intl.). We offer cheap direct, ... May 28 from Ontario to Las Vegas, returning Thu, May 30, priced at $56 found 22 hours ago. Wed, Jul 31 - Wed, Jul 31. ONT. Ontario. LAS. Las Vegas. $57 Roundtrip, found 1 hour ago. $57.The average flight time from Las Vegas to Ontario/LA is 1 hour 2 minutes. How many Southwest flights occur weekly from Las Vegas to Ontario/LA? There are 85 weekly flights from Las Vegas to Ontario/LA on Southwest Airlines. Does Southwest fly nonstop on weekdays from Las Vegas to Ontario/LA? Yes, Southwest flies nonstop from Las …Prices were available within the past 7 days and start at $121 for one-way flights and $247 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Burlington to Las Vegas with no change fee on selected flights. Earn your airline miles on top of our ...Arrange your cheap flight now and start planning an exciting trip to Nevada's exciting, entertaining destination. Get the best out of the Las Vegas Strip, Bellagio’s world famous fountains, Grand Canyon and more once you've flown from Windsor to Las Vegas with WestJet. For an enriching air travel experience, book with WestJet today. Flights Ontario International Airport offers passengers nonstop service to 20+ destinations worldwide, including New York, Las Vegas, Mexico, and more. Read More Cheap Flights from London to Las Vegas (LHR-LAS) Prices were available within the past 7 days and start at $541 for one-way flights and $696 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 Las Vegas with no change fee on selected flights.The two airlines most popular with KAYAK users for flights from Ontario to Las Vegas are Alaska Airlines and United Airlines. With an average price for the route of $67 and an overall rating of 8.1, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $202 and an overall ...Drop us a note about your route request for Ontario ... Ontario International Airport offers passengers nonstop service to 20+ destinations worldwide, including New York, Las Vegas ... lounges and more for Terminals 2 and 4. Read More Arrivals and Departures Get up-to-the-minute flight information for arrivals at Ontario International ...Prices were available within the past 7 days and start at CA $118 for one-way flights and CA $207 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Toronto to Las Vegas with no change fee on selected flights. Earn double rewards with airline miles ...Las Vegas.$46 per passenger.Departing Mon, Jun 24, returning Wed, Jun 26.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from …A one way ticket to Ontario is now! Book one-way or return flights from Las Vegas to Ontario with no change fee on selected flights. Earn your airline miles on top of our rewards! Get great 2024 flight deals from Las Vegas to Ontario now!Cheap flights from London (YXU) to Las Vegas (LAS) Prices were available within the past 7 days and start at CA $266 for one-way flights and CA $452 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 Las Vegas with no change fee on ...There are 2 airlines that fly nonstop from Ontario to Las Vegas. They are Frontier and Southwest. The cheapest airline for this route is Frontier, with the best one-way deal ….