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Cheap flights from London, ON to Las Vegas from C$ 274

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LAS
23 Feb — 2 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 24 January 2026.

Tue 5/58:00 p.m.
YXU
-
LAS
1 stop24h 34m
WestJet
Tue 12/58:00 a.m.
LAS
-
YXU
1 stop8h 07m
WestJet
Deal found 23/1C$ 523
Tue 10/38:10 p.m.
YXU
-
LAS
1 stop28h 23m
WestJet
Tue 17/38:05 a.m.
LAS
-
YXU
1 stop19h 30m
WestJet
Deal found 24/1C$ 526
Tue 10/35:10 a.m.
YXU
-
LAS
2 stops13h 49m
Air Canada
Tue 17/311:30 p.m.
LAS
-
YXU
1 stop6h 16m
Air Canada
Deal found 24/1C$ 534
Mon 9/35:40 p.m.
YXU
-
LAS
1 stop7h 51m
Air Canada
Fri 13/311:30 p.m.
LAS
-
YXU
1 stop6h 16m
Air Canada
Deal found 21/1C$ 548
Sun 3/56:00 a.m.
YXU
-
LAS
1 stop8h 04m
Air Canada
Thu 7/511:30 p.m.
LAS
-
YXU
1 stop9h 13m
Air Canada
Deal found 22/1C$ 559
Sun 3/58:00 p.m.
YXU
-
LAS
2 stops19h 30m
WestJet
Thu 7/51:25 p.m.
LAS
-
YXU
2 stops12h 47m
WestJet
Deal found 22/1C$ 583
Sun 22/38:10 p.m.
YXU
-
LAS
2 stops27h 06m
WestJet
Wed 25/37:05 p.m.
LAS
-
YXU
1 stop8h 30m
WestJet
Deal found 24/1C$ 585
Fri 29/58:00 p.m.
YXU
-
LAS
2 stops26h 37m
WestJet
Mon 1/69:10 p.m.
LAS
-
YXU
2 stops29h 02m
WestJet
Deal found 23/1C$ 587

Find 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 24 January 2026.

Round-trip from

C$ 523

One-way from

C$ 274

Popular in

December

Cheapest in

May

Average price

C$ 448
WestJet
  • WestJet
  • 5/5-12/5
  • 2 total stops
  • 32h 41m total
  • London to Las Vegas
Search Deals
WestJet
  • WestJet
  • 9/3
  • 1 total stop
  • 25h 03m 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$ 24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 24 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 5/5

8:00 p.m.-5:34 p.m.

1 stop24h 34m

Las Vegas Harry Reid Intl

Tue 12/5

8:00 a.m.-7:07 p.m.

1 stop8h 07m

C$ 523

LondonLas Vegas

YXU - LAS

YXULAS

London

Tue 10/3

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

1 stop28h 23m

Las Vegas Harry Reid Intl

Tue 17/3

8:05 a.m.-6:35 a.m.

1 stop19h 30m

C$ 526

LondonLas Vegas

YXU - LAS

YXULAS

London

Tue 10/3

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

2 stops13h 49m

Las Vegas Harry Reid Intl

Tue 17/3

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

1 stop6h 16m

C$ 534

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 9/3

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

1 stop7h 51m

Las Vegas Harry Reid Intl

Fri 13/3

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

1 stop6h 16m

C$ 548

LondonLas Vegas

YXU - LAS

YXULAS

London

Fri 29/5

6:10 p.m.-10:29 p.m.

1 stop7h 19m

Las Vegas Harry Reid Intl

Mon 1/6

11:30 p.m.-11:43 a.m.

1 stop9h 13m

C$ 559

LondonLas Vegas

YXU - LAS

YXULAS

London

Sun 3/5

6:10 p.m.-10:29 p.m.

1 stop7h 19m

Las Vegas Harry Reid Intl

Thu 7/5

11:30 p.m.-8:53 a.m.

1 stop6h 23m

C$ 559

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 9/3

8:10 p.m.-6:13 p.m.

1 stop25h 03m

C$ 274

LondonLas Vegas

YXU - LAS

YXULAS

London

Mon 9/3

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

2 stops13h 49m

C$ 296

LondonLas Vegas

YXU - LAS

YXULAS

London

Sun 8/3

8:10 p.m.-6:30 p.m.

2 stops25h 20m

C$ 307

LondonLas Vegas

YXU - LAS

YXULAS

London

Sun 8/3

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

1 stop7h 51m

C$ 307

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/1

Showing 1-10 of 17 results
1
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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 16 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$ 144). 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.

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 24 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
9,193 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,193 reviews
United Airlines
7.4
Good
9,193 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
WestJet
7.2
Good
3,250 reviews
United Airlines
7.4
Good
9,193 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Air Canada
7.1
Good
10,652 reviews
United Airlines
7.4
Good
9,193 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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$ 348. 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$ 144). 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 24 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 178AverageC$ 412FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 328AverageC$ 424FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 348AverageC$ 532FlexibilityNo 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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