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Cheap flights from Las Vegas to London from $308

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to London departing on 12/31. 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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Cheap round-trip flights

Air Canada Logo
9:10 am - 7:10 amLAS-LHR
14h 00m1 stop
Air Canada Logo
9:00 am - 8:49 pmLHR-LAS
19h 49m2 stops
$550Air Canada
Find Deal
Wed, Feb 11 - Tue, Feb 17
Virgin Atlantic Logo
9:10 pm - 3:05 pmLAS-LHR
9h 55mnonstop
Virgin Atlantic Logo
4:35 pm - 7:15 pmLHR-LAS
10h 40mnonstop
$552Virgin Atlantic
Find Deal
Sun, Oct 5 - Tue, Oct 21
Delta Logo
9:10 pm - 3:05 pmLAS-LHR
9h 55mnonstop
Delta Logo
6:30 am - 3:15 pmLHR-LAS
15h 45m1 stop
$560Delta
Find Deal
Wed, Oct 1 - Thu, Oct 30
British Airways Logo
10:05 pm - 4:05 pmLAS-LHR
10h 00mnonstop
British Airways Logo
5:20 pm - 8:00 pmLHR-LAS
10h 40mnonstop
$561British Airways
Find Deal
Wed, Oct 15 - Wed, Oct 22
Delta Logo
7:59 pm - 5:15 pmLAS-LHR
13h 16m1 stop
Delta Logo
8:40 am - 3:15 pmLHR-LAS
13h 35m1 stop
$564Delta
Find Deal
Wed, Oct 1 - Thu, Oct 30
American Airlines Logo
5:05 pm - 11:15 amLAS-LHR
10h 10mnonstop
American Airlines Logo
5:20 pm - 8:00 pmLHR-LAS
10h 40mnonstop
$570American Airlines
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Sun, Oct 5 - Tue, Oct 21
American Airlines Logo
5:06 pm - 1:15 pmLAS-LHR
12h 09m1 stop
American Airlines Logo
4:05 pm - 6:50 pmLHR-LAS
10h 45mnonstop
$572American Airlines
Find Deal
Sun, Feb 8 - Tue, Feb 17
British Airways Logo
10:30 am - 7:55 amLAS-LHR
13h 25m1 stop
British Airways Logo
11:50 am - 6:09 pmLHR-LAS
14h 19m1 stop
$575British Airways
Find Deal
Wed, Oct 22 - Wed, Nov 12
United Airlines Logo
3:50 pm - 2:10 pmLAS-LHR
14h 20m1 stop
United Airlines Logo
11:35 am - 6:49 pmLHR-LAS
14h 14m1 stop
$577United Airlines
Find Deal
Wed, Oct 1 - Thu, Oct 30
United Airlines Logo
11:59 pm - 5:55 amLAS-LHR
21h 56m1 stop
United Airlines Logo
1:35 pm - 9:43 pmLHR-LAS
15h 08m1 stop
$581United Airlines
Find Deal
Mon, Mar 2 - Tue, Mar 10

SWISS flights from Las Vegas to London Heathrow Airport

Our best SWISS deals on Las Vegas to London Heathrow Airport flight tickets
SWISS
Oct 6
LAS7:05 pmLas Vegas Harry Reid Intl
13h 20m
1 stop
LHR4:25 pmLondon Heathrow
Oct 21
LHR8:45 amLondon Heathrow
20h 07m
2 stops
LAS8:52 pmLas Vegas Harry Reid Intl
$583
Find similar
SWISS
Oct 23
LAS7:05 pmLas Vegas Harry Reid Intl
32h 20m
1 stop
LHR11:25 amLondon Heathrow
Oct 26
LHR10:05 amLondon Heathrow
19h 35m
1 stop
LAS10:40 pmLas Vegas Harry Reid Intl
$585
Find similar
SWISS
Oct 21
LAS1:30 pmLas Vegas Harry Reid Intl
34h 25m
2 stops
LHR7:55 amLondon Heathrow
Oct 27
LHR6:40 pmLondon Heathrow
35h 00m
2 stops
LAS10:40 pmLas Vegas Harry Reid Intl
$588
Find similar

Scandinavian Airlines flights from Las Vegas to London Heathrow Airport

Our best Scandinavian Airlines deals on Las Vegas to London Heathrow Airport flight tickets
Scandinavian Airlines
Nov 11
LAS9:21 amLas Vegas Harry Reid Intl
28h 19m
2 stops
LHR9:40 pmLondon Heathrow
Nov 18
LHR7:05 amLondon Heathrow
24h 14m
3 stops
LAS11:19 pmLas Vegas Harry Reid Intl
$602
Find similar
Scandinavian Airlines
Nov 5
LAS9:17 amLas Vegas Harry Reid Intl
24h 23m
2 stops
LHR5:40 pmLondon Heathrow
Nov 9
LHR6:40 amLondon Heathrow
24h 39m
3 stops
LAS11:19 pmLas Vegas Harry Reid Intl
$603
Find similar
Scandinavian Airlines
Oct 28
LAS9:17 amLas Vegas Harry Reid Intl
26h 13m
2 stops
LHR6:30 pmLondon Heathrow
Nov 3
LHR6:40 amLondon Heathrow
23h 49m
2 stops
LAS10:29 pmLas Vegas Harry Reid Intl
$604
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Las Vegas to London Heathrow Airport 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 September 17, 2025.
Use the filters below to find and compare flights from Las Vegas to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 2/11

9:10 am-7:10 am

1 stop14h 00m

London Heathrow

Tue 2/17

9:00 am-8:49 pm

2 stops19h 49m

$550

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Sun 10/5

9:10 pm-3:05 pm

Nonstop9h 55m

London Heathrow

Tue 10/21

4:35 pm-7:15 pm

Nonstop10h 40m

$552

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 10/1

9:10 pm-3:05 pm

Nonstop9h 55m

London Heathrow

Thu 10/30

6:30 am-3:15 pm

1 stop15h 45m

$560

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 10/15

10:05 pm-4:05 pm

Nonstop10h 00m

London Heathrow

Wed 10/22

5:20 pm-8:00 pm

Nonstop10h 40m

$561

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 10/1

7:59 pm-5:15 pm

1 stop13h 16m

London Heathrow

Thu 10/30

8:40 am-3:15 pm

1 stop13h 35m

$564

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Sun 10/5

5:05 pm-11:15 am

Nonstop10h 10m

London Heathrow

Tue 10/21

5:20 pm-8:00 pm

Nonstop10h 40m

$570

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Sun 2/8

5:06 pm-1:15 pm

1 stop12h 09m

London Heathrow

Tue 2/17

4:05 pm-6:50 pm

Nonstop10h 45m

$572

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 10/22

10:30 am-7:55 am

1 stop13h 25m

London Heathrow

Wed 11/12

11:50 am-6:09 pm

1 stop14h 19m

$575

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 10/1

3:50 pm-2:10 pm

1 stop14h 20m

London Heathrow

Thu 10/30

11:35 am-6:49 pm

1 stop14h 14m

$577

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Mon 3/2

11:59 pm-5:55 am

1 stop21h 56m

London Heathrow

Tue 3/10

1:35 pm-9:43 pm

1 stop15h 08m

$581

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 London from

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

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 London Heathrow Airport?

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Las Vegas, with most prices found around $696. If you’re not able to fly to London Heathrow Airport in January, then February is your next best option. Flight prices from Las Vegas to London Heathrow Airport during February average around $704.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $948. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $1,141.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Las Vegas to London Heathrow Airport in the morning for as low as $783. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,021.

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

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

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $899 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Las Vegas for as low as $725 on momondo.

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

There are 3 cabin classes available to choose from on Las Vegas Harry Reid Intl to London Heathrow 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 Las Vegas to London Heathrow Airport flights?

You could potentially save up to 9% on your flight if you consider stops on a Las Vegas to London Heathrow Airport flight.

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

As of September 2025, prices for Las Vegas to London Heathrow Airport flights are approximately 11% cheaper when compared to flights at the same time last year.

When to book flights from Las Vegas to London Heathrow Airport

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

Cheap Las Vegas to London Heathrow Airport (LAS to LHR) flight deals and tips

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

Best Price Found

$438

Fastest flight time

9h 50m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Las Vegas in the past 72 hours is $438. The best round-trip flight deal from Las Vegas to London Heathrow Airport found on momondo in the last 72 hours is $695.
The fastest flight from Las Vegas to London Heathrow Airport takes 9h 50m
Direct flights go from Las Vegas to London Heathrow Airport every day.
Search flight deals

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

    The distance between Las Vegas Harry Reid Intl and London Heathrow is about 5207.1 mi. Flights usually cover this in 9h 55m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Las Vegas Harry Reid Intl Airport to London Heathrow Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow 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 London Heathrow 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 Las Vegas to London Heathrow Airport?

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

Best airlines flying from Las Vegas to London Heathrow Airport

Compare and see reviews for airlines that fly from Las Vegas to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $502Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Virgin AtlanticPriceFrom $542Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom $567Free CancellationRating
6.7
7,367 reviews
Search British Airways flights
United AirlinesPriceFrom $580Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
IberiaPriceFrom $610Free CancellationRating
7.0
2,925 reviews
Search Iberia flights
DeltaPriceFrom $614Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $671Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
JetBluePriceFrom $750Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
Aer LingusPriceFrom $962Free CancellationRating
7.2
1,277 reviews
Search Aer Lingus flights

  • Delta Flights From Las Vegas to London Heathrow Airport

    The lowest priced Delta flight from Las Vegas to London Heathrow Airport from the last 72 hours was $614. Generally, Delta has 7 flights on this route every week with an average price of $959. Delta is rated 7.9/10 by our users.

  • Virgin Atlantic Flights From Las Vegas to London Heathrow Airport

    The best Virgin Atlantic deal for Las Vegas to London Heathrow Airport flight tickets found on momondo in the last 72 hours was $542, round-trip. It should be noted that an average Virgin Atlantic flight deal for this route in this time was higher, at $984 round-trip. Virgin Atlantic operates 7 flights out of Las Vegas into London Heathrow Airport in an average week, so prices vary by time and availability. 664 Virgin Atlantic reviews by users on momondo have scored the airline at 7.4/10.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Dover
Luton
Slough
Milton Keynes
Hayes
Guildford
Dartford
Crawley
Stansted
Chelmsford
Salisbury
Brentwood
Ilford
Folkestone
Colchester
Swindon
Stratford-upon-Avon
Watford

Why use momondo?

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

It is quick and easy to find Las Vegas to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

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

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

momondo helps you find the best flight between Las Vegas and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Las Vegas and alert you when they change.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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