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Cheap flights from London to Las Vegas from $428

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Las Vegas departing on 3/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
11:50 am - 7:45 pm
LHR
-
LAS
15h 55m
1 stop
British Airways Logo
9:45 am - 6:50 am
LAS
-
LHR
13h 05m
1 stop
$587British Airways
Wed, Feb 11 - Tue, Feb 17
Multiple Airlines Logo
10:50 am - 10:29 pm
LHR
-
LAS
19h 39m
2 stops
Multiple Airlines Logo
12:00 pm - 9:35 am
LAS
-
LHR
13h 35m
1 stop
$588Multiple Airlines
Wed, Apr 29 - Mon, May 4
Air Canada Logo
2:30 pm - 10:27 pm
LHR
-
LAS
15h 57m
1 stop
Air Canada Logo
10:44 am - 11:50 am
LAS
-
LHR
17h 06m
2 stops
$589Air Canada
Fri, Feb 6 - Wed, Feb 11
Multiple Airlines Logo
9:20 am - 8:39 pm
LCY
-
LAS
19h 19m
2 stops
Multiple Airlines Logo
9:00 am - 9:05 am
LAS
-
LCY
16h 05m
2 stops
$589Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
SWISS Logo
9:15 am - 4:25 pm
LCY
-
LAS
15h 10m
1 stop
SWISS Logo
7:00 pm - 5:30 pm
LAS
-
LCY
14h 30m
1 stop
$590SWISS
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
6:50 am - 8:39 pm
LHR
-
LAS
21h 49m
2 stops
Multiple Airlines Logo
10:52 am - 7:55 am
LAS
-
LHR
13h 03m
1 stop
$590Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Air Canada Logo
1:25 pm - 8:39 pm
LHR
-
LAS
15h 14m
1 stop
Air Canada Logo
6:15 am - 11:50 am
LAS
-
LHR
21h 35m
1 stop
$592Air Canada
Fri, Feb 27 - Wed, Mar 4
SWISS Logo
9:25 am - 4:25 pm
LGW
-
LAS
15h 00m
1 stop
SWISS Logo
7:20 pm - 5:50 pm
LAS
-
LGW
14h 30m
1 stop
$592SWISS
Sat, May 16 - Wed, May 20
United Airlines Logo
1:45 pm - 11:55 pm
LHR
-
LAS
18h 10m
2 stops
United Airlines Logo
1:42 pm - 1:30 pm
LAS
-
LHR
15h 48m
2 stops
$593United Airlines
Sun, Feb 15 - Sat, Feb 21
United Airlines Logo
3:20 pm - 11:55 pm
LHR
-
LAS
16h 35m
1 stop
United Airlines Logo
9:00 am - 9:40 am
LAS
-
LHR
16h 40m
1 stop
$594United Airlines
Thu, Feb 26 - Mon, Mar 2

British Airways flights from London to Las Vegas

Our best British Airways deals on London to Las Vegas flight tickets
British Airways
Feb 11
LHR11:50 amLondon Heathrow
15h 55m
1 stop
LAS7:45 pmLas Vegas Harry Reid Intl
Feb 17
LAS9:45 amLas Vegas Harry Reid Intl
13h 05m
1 stop
LHR6:50 amLondon Heathrow
$587
British Airways
Apr 28
LHR12:00 pmLondon Heathrow
13h 30m
1 stop
LAS5:30 pmLas Vegas Harry Reid Intl
May 5
LAS10:42 amLas Vegas Harry Reid Intl
13h 23m
1 stop
LHR8:05 amLondon Heathrow
$591
British Airways
Jun 29
LHR5:15 pmLondon Heathrow
10h 45m
LAS8:00 pmLas Vegas Harry Reid Intl
Jul 13
LAS10:55 pmLas Vegas Harry Reid Intl
12h 50m
1 stop
LHR7:45 pmLondon Heathrow
$596

United Airlines flights from London to Las Vegas

Our best United Airlines deals on London to Las Vegas flight tickets
United Airlines
Feb 6
LHR4:20 pmLondon Heathrow
37h 37m
1 stop
LAS9:57 pmLas Vegas Harry Reid Intl
Feb 7
LAS12:59 amLas Vegas Harry Reid Intl
22h 31m
1 stop
LHR7:30 amLondon Heathrow
$588
United Airlines
Feb 2
LHR10:00 amLondon Heathrow
15h 49m
1 stop
LAS5:49 pmLas Vegas Harry Reid Intl
Feb 18
LAS1:55 pmLas Vegas Harry Reid Intl
12h 55m
1 stop
LHR10:50 amLondon Heathrow
$592
United Airlines
Feb 15
LHR1:45 pmLondon Heathrow
18h 10m
2 stops
LAS11:55 pmLas Vegas Harry Reid Intl
Feb 21
LAS1:42 pmLas Vegas Harry Reid Intl
15h 48m
2 stops
LHR1:30 pmLondon Heathrow
$593

momondo 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, momondo users made 832,500 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from London to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Wed 2/11

11:50 am-7:45 pm

1 stop15h 55m

Las Vegas Harry Reid Intl

Tue 2/17

9:45 am-6:50 am

1 stop13h 05m

$587

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Wed 4/29

10:50 am-10:29 pm

2 stops19h 39m

Las Vegas Harry Reid Intl

Mon 5/4

12:00 pm-9:35 am

1 stop13h 35m

$588

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 2/6

2:30 pm-10:27 pm

1 stop15h 57m

Las Vegas Harry Reid Intl

Wed 2/11

10:44 am-11:50 am

2 stops17h 06m

$589

LondonLas Vegas

LCY - LAS

LCYLAS

London City

Wed 2/25

9:20 am-8:39 pm

2 stops19h 19m

Las Vegas Harry Reid Intl

Wed 3/4

9:00 am-9:05 am

2 stops16h 05m

$589

LondonLas Vegas

LCY - LAS

LCYLAS

London City

Tue 4/14

9:15 am-4:25 pm

1 stop15h 10m

Las Vegas Harry Reid Intl

Tue 4/21

7:00 pm-5:30 pm

1 stop14h 30m

$590

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 2/26

6:50 am-8:39 pm

2 stops21h 49m

Las Vegas Harry Reid Intl

Mon 3/2

10:52 am-7:55 am

1 stop13h 03m

$590

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 2/27

1:25 pm-8:39 pm

1 stop15h 14m

Las Vegas Harry Reid Intl

Wed 3/4

6:15 am-11:50 am

1 stop21h 35m

$592

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Sat 5/16

9:25 am-4:25 pm

1 stop15h 00m

Las Vegas Harry Reid Intl

Wed 5/20

7:20 pm-5:50 pm

1 stop14h 30m

$592

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Sun 2/15

1:45 pm-11:55 pm

2 stops18h 10m

Las Vegas Harry Reid Intl

Sat 2/21

1:42 pm-1:30 pm

2 stops15h 48m

$593

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 2/26

3:20 pm-11:55 pm

1 stop16h 35m

Las Vegas Harry Reid Intl

Mon 3/2

9:00 am-9:40 am

1 stop16h 40m

$594

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Las Vegas from

How to get the cheapest flight ticket from London to Las Vegas

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Las Vegas?

The month of February is, on average, the cheapest month to fly to Las Vegas from London, with most prices found around $709. The month of March is another great option to travel to Las Vegas, with average flight prices from London averaging around $749.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Tuesday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $903. Flights from London to Las Vegas on a Friday will generally be more expensive and average around $1,038. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Las Vegas?

The cheapest time of day to fly to Las Vegas is in the morning when flights can be purchased for as low as $815. Flights to Las Vegas are more costly in the afternoon, with an average ticket price of $985. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London to Las Vegas Harry Reid Intl flight route?

Fly from London Heathrow to Las Vegas Harry Reid Intl for the best London - Las Vegas Harry Reid Intl flight prices

How far in advance should I book a flight to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $871 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from London for as low as $818 on momondo.

What cabin class options are available on London to Las Vegas Harry Reid Intl flights?

There are 3 cabin classes available to choose from on London to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Las Vegas flights?

You could potentially save up to 35% on your flight if you consider stops on a London to Las Vegas flight.

How have London to Las Vegas flight prices changed over time?

As of January 2026, prices for London to Las Vegas flights are approximately 43% more expensive when compared to flights at the same time last year.

When to book flights from London to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from London to Las Vegas according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London to Las Vegas (LON to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Las Vegas

Best Price Found

$726

Fastest flight time

10h 40m

Direct flights

Every day

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from London in the past 72 hours is $726. The best round-trip flight deal from London to Las Vegas found on momondo in the last 72 hours is $568.
The fastest flight from London to Las Vegas takes 10h 40m
Direct flights go from London to Las Vegas every day.
There is 1 airport in Las Vegas. From London there are direct flights to Las Vegas Harry Reid Intl (LAS).
Search flight deals

  • How far is London to Las Vegas Harry Reid Intl by plane?

    Las Vegas Harry Reid Intl is 5216.7 mi away from London. By plane, this route typically takes 10h 40m.

  • When did momondo last update prices for flights from London to Las Vegas Harry Reid Intl Airport?

    Prices for flights from London to Las Vegas Harry Reid Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from London to Las Vegas Harry Reid Intl Airport?

  • How old do you have to be to fly from London to Las Vegas Harry Reid Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The travel and health documents required for your trip to Las Vegas Harry Reid Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Las Vegas Harry Reid Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from London to Las Vegas?

  • What is the most popular airline from London to Las Vegas?

Best airlines flying from London to Las Vegas

Compare and see reviews for airlines that fly from London to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $600Free CancellationRating
7.9
8,123 reviews
Search Delta flights
Virgin AtlanticPriceFrom $651Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
American AirlinesPriceFrom $652Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights
British AirwaysPriceFrom $692Free CancellationRating
6.7
7,704 reviews
Search British Airways flights

  • Delta Flights From London to Las Vegas

    The lowest priced Delta flight from London to Las Vegas from the last 72 hours was $600. Generally, Delta has 5 flights on this route every week with an average price of $930. Delta is rated 7.9/10 by our users.

  • Virgin Atlantic Flights From London to Las Vegas

    Virgin Atlantic is also a popular choice for this route. Virgin Atlantic flight deals for London to Las Vegas start from as low as $651 round-trip, depending on your selected dates, with average Virgin Atlantic deals seen on momondo around $1,056. Virgin Atlantic operates 5 flights to Las Vegas from London in an average week. Users have rated it 7.5/10 across 678 reviews.

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Henderson
Paradise
Mesquite
North Las Vegas
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Sunrise Manor
Winchester
Needles

Why use momondo?

Why should I use momondo to find a flight deal from London to Las Vegas?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Las Vegas for you.

Can I find flights from London to Las Vegas with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Las Vegas flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Las Vegas?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Las Vegas from London.

I’m not ready to book a flight from London to Las Vegas right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Las Vegas flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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