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Cheap flights from London, ON to Las Vegas from C$ 255

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAS
5 Feb — 12 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 6 January 2026.

Round-trip from

C$ 442

One-way from

C$ 255

Popular in

December

Cheapest in

May

Average price

C$ 449
WestJet
  • WestJet
  • 3/2-10/2
  • 3 total stops
  • 42h 48m total
  • London to Las Vegas
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WestJet
  • WestJet
  • 20/1
  • 2 total stops
  • 19h 09m total
  • London to Las Vegas
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from London to Las Vegas

Enter your travel dates to find the best prices.

Cheapest flights from London to Las Vegas
Explore the most affordable flight options available from London to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 January 2026.

Tue 3/28:10 p.m.YXU - LAS
1 stop28h 23mWestJet
Tue 10/21:10 p.m.LAS - YXU
2 stops14h 25mWestJet
Deal found 6/1C$ 442
Thu 22/15:10 a.m.YXU - LAS
2 stops13h 49mAir Canada
Mon 26/111:30 p.m.LAS - YXU
1 stop6h 16mAir Canada
Deal found 5/1C$ 460
Mon 9/39:25 a.m.YXU - LAS
1 stop7h 36mAir Canada
Fri 13/311:30 p.m.LAS - YXU
1 stop6h 16mAir Canada
Deal found 5/1C$ 474
Mon 2/28:10 p.m.YXU - LAS
1 stop28h 23mWestJet
Mon 9/29:15 p.m.LAS - YXU
2 stops30h 20mWestJet
Deal found 6/1C$ 487
Thu 22/18:10 p.m.YXU - LAS
2 stops51h 05mWestJet
Mon 9/29:15 p.m.LAS - YXU
2 stops30h 20mWestJet
Deal found 5/1C$ 491
Thu 22/18:10 p.m.YXU - LAS
2 stops51h 05mWestJet
Mon 26/19:15 p.m.LAS - YXU
2 stops30h 19mWestJet
Deal found 5/1C$ 518
Tue 3/38:10 p.m.YXU - LAS
2 stops51h 06mWestJet
Tue 10/37:05 p.m.LAS - YXU
1 stop8h 30mWestJet
Deal found 5/1C$ 520
Mon 2/28:10 p.m.YXU - LAS
2 stops24h 08mMultiple Airlines
Mon 9/27:15 p.m.LAS - YXU
3 stops32h 20mMultiple Airlines
Deal found 5/1C$ 544
Tue 3/29:50 a.m.YXU - LAS
2 stops11h 03mAir Canada
Tue 10/26:15 a.m.LAS - YXU
2 stops12h 06mAir Canada
Deal found 6/1C$ 551

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 6 January 2026.
Use the filters below to find and compare flights from London to Las Vegas that are best for you.

Fly from

London

Fly to

Las Vegas

Route

Depart

Return

Price

LondonLas Vegas

YXU - LAS

YXULAS

London

Tue 3/2

8:10 p.m.-9:33 p.m.

1 stop28h 23m

Las Vegas Harry Reid Intl

Tue 10/2

1:10 p.m.-6:35 a.m.

2 stops14h 25m

C$ 442

LondonLas Vegas

YXU - LAS

YXULAS

London

Thu 22/1

5:10 a.m.-3:59 p.m.

2 stops13h 49m

Las Vegas Harry Reid Intl

Mon 26/1

11:30 p.m.-8:46 a.m.

1 stop6h 16m

C$ 460

LondonLas Vegas

YXU - LAS

YXULAS

London

Thu 22/1

5:40 p.m.-10:31 p.m.

1 stop7h 51m

Las Vegas Harry Reid Intl

Mon 9/2

11:30 p.m.-8:46 a.m.

1 stop6h 16m

C$ 460

LondonLas Vegas

YXU - LAS

YXULAS

London

Tue 3/2

5:40 p.m.-10:31 p.m.

1 stop7h 51m

Las Vegas Harry Reid Intl

Tue 10/2

11:30 p.m.-8:46 a.m.

1 stop6h 16m

C$ 460

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 9/3

9:25 a.m.-2:01 p.m.

1 stop7h 36m

Las Vegas Harry Reid Intl

Fri 13/3

11:30 p.m.-8:46 a.m.

1 stop6h 16m

C$ 474

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 2/2

8:10 p.m.-9:33 p.m.

1 stop28h 23m

Las Vegas Harry Reid Intl

Mon 9/2

9:15 p.m.-6:35 a.m.

2 stops30h 20m

C$ 487

LondonLas Vegas

YXU - LAS

YXULAS

London

Thu 22/1

8:10 p.m.-8:15 p.m.

2 stops51h 05m

Las Vegas Harry Reid Intl

Mon 9/2

9:15 p.m.-6:35 a.m.

2 stops30h 20m

C$ 491

LondonLas Vegas

YXU - LAS

YXULAS

London

Tue 3/3

8:10 p.m.-8:16 p.m.

2 stops51h 06m

Las Vegas Harry Reid Intl

Tue 10/3

7:05 p.m.-6:35 a.m.

1 stop8h 30m

C$ 520

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 2/2

8:10 p.m.-5:18 p.m.

2 stops24h 08m

Las Vegas Harry Reid Intl

Mon 9/2

7:15 p.m.-6:35 a.m.

3 stops32h 20m

C$ 544

LondonLas Vegas

YXU - LAS

YXULAS

London

Tue 20/1

8:10 p.m.-12:19 p.m.

2 stops19h 09m

C$ 255

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 13 results
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Best time to book a flight from London to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Las Vegas

How far ahead should I book a flight from London, Ontario to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from London to Las Vegas. Price data was last updated on 2 January 2026.

To ensure you get the cheapest price possible for a flight from London, Ontario to Las Vegas, you should look to book at least 37 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London, Ontario to Las Vegas?

Currently, March is the cheapest month in which you can book a flight from London, Ontario to Las Vegas (average of C$ 145). Flying from London, Ontario to Las Vegas in August is currently the most expensive (average of C$ 235). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from London, Ontario to Las Vegas?

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated 6 January 2026.
See what other customers who have flown with United Airlines,WestJet, andAir Canada from London to Las Vegas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,132 reviews
Check prices

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,132 reviews
United Airlines
7.4
Good
9,132 reviews
Check prices

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
WestJet
7.2
Good
3,235 reviews
United Airlines
7.4
Good
9,132 reviews
Check prices

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Air Canada
7.1
Good
10,597 reviews
United Airlines
7.4
Good
9,132 reviews
Check prices

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

Find useful and relevant information for your journey from London to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London, Ontario to Las Vegas?

    Departing from London, Ontario to Las Vegas will take you 13h 49m. London, Ontario and Las Vegas are separated by a distance of 2992 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London, Ontario to Las Vegas round-trip?

    Cheapflights users have booked flights from London, Ontario to Las Vegas round-trip from C$ 178. Other airlines that can offer you cheap pricing are WestJet, from C$ 328, and Air Canada, from C$ 349. United Airlines is currently priced 63% below the average price you’ll pay for this route.

  • Can I find deals for flights from London to Las Vegas that include hotel bookings?

    Yes. In addition to deals on London to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Las Vegas.

  • Can I find deals for business class flights from London to Las Vegas?

    Yes. Cheapflights offers flight deals from London to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London, Ontario to Las Vegas?

    Currently, March is the cheapest month in which you can book a flight from London, Ontario to Las Vegas (average of C$ 145). Flying from London, Ontario to Las Vegas in August is currently the most expensive (average of C$ 235). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Kingman
Boulder City
Henderson
North Las Vegas
Paradise

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from London to Las Vegas

Discover the top 3 airlines that operate flights from London to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 6 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 178AverageC$ 419FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 328AverageC$ 420FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 355AverageC$ 515FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Las Vegas?

When you search for this flight from London to Las Vegas, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from London to Las Vegas?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Las Vegas.

Can Cheapflights find flights from London to Las Vegas with no change fees?

Need flexible booking options for your flight to Las Vegas from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Las Vegas become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Las Vegas from London today and book when prices fit your budget.

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