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Cheap flights from London Heathrow Airport to Las Vegas from £283

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 Heathrow Airport to Las Vegas departing on 5/9. 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 Heathrow Airport to Las Vegas

Cheap return flights

Logo
06:40 - 22:26LHR-LAS
23h 46m2 stops
Logo
12:11 - 21:40LAS-LHR
25h 29m2 stops
£418
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Logo
06:40 - 22:26LHR-LAS
23h 46m2 stops
Logo
12:11 - 09:20LAS-LHR
37h 09m2 stops
£419
Find Deal
Mon, 22 Sep - Fri, 26 Sep
Logo
07:05 - 22:26LHR-LAS
23h 21m3 stops
Logo
12:11 - 17:40LAS-LHR
21h 29m2 stops
£421
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Logo
21:05 - 21:09LHR-LAS
32h 04m3 stops
Logo
12:11 - 18:30LAS-LHR
22h 19m2 stops
£422
Find Deal
Tue, 16 Sep - Tue, 23 Sep
Logo
21:05 - 21:19LHR-LAS
32h 14m3 stops
Logo
12:11 - 17:40LAS-LHR
21h 29m2 stops
£430
Find Deal
Tue, 9 Sep - Tue, 16 Sep
Logo
10:20 - 21:19LHR-LAS
18h 59m2 stops
Logo
12:11 - 17:40LAS-LHR
21h 29m2 stops
£431
Find Deal
Tue, 9 Sep - Tue, 16 Sep
Logo
21:05 - 21:09LHR-LAS
32h 04m3 stops
Logo
09:00 - 17:40LAS-LHR
24h 40m3 stops
£436
Find Deal
Tue, 16 Sep - Tue, 23 Sep
Logo
06:40 - 21:16LHR-LAS
22h 36m2 stops
Logo
10:45 - 17:40LAS-LHR
22h 55m2 stops
£437
Find Deal
Thu, 28 Aug - Thu, 4 Sep
United Airlines Logo
13:05 - 09:40LHR-LAS
28h 35m1 stop
United Airlines Logo
07:00 - 06:20LAS-LHR
15h 20m1 stop
£465United Airlines
Find Deal
Sat, 23 Aug - Mon, 25 Aug
Air Canada Logo
09:00 - 20:39LHR-LAS
19h 39m2 stops
Air Canada Logo
09:10 - 07:10LAS-LHR
14h 00m1 stop
£509Air Canada
Find Deal
Thu, 15 Jan - Sun, 18 Jan

United Airlines flights from London Heathrow Airport to Las Vegas

Our best United Airlines deals on London Heathrow Airport to Las Vegas flight tickets
United Airlines
23 Aug
LHR13:05London Heathrow
28h 35m
1 stop
LAS09:40Las Vegas Harry Reid Intl
25 Aug
LAS07:00Las Vegas Harry Reid Intl
15h 20m
1 stop
LHR06:20London Heathrow
£465
Find similar
United Airlines
7 Aug
LHR06:50London Heathrow
17h 50m
2 stops
LAS16:40Las Vegas Harry Reid Intl
14 Aug
LAS06:00Las Vegas Harry Reid Intl
20h 10m
2 stops
LHR10:10London Heathrow
£613
Find similar
United Airlines
9 Aug
LHR14:50London Heathrow
17h 07m
2 stops
LAS23:57Las Vegas Harry Reid Intl
15 Aug
LAS07:25Las Vegas Harry Reid Intl
15h 30m
2 stops
LHR06:55London Heathrow
£635
Find similar

Virgin Atlantic flights from London Heathrow Airport to Las Vegas

Our best Virgin Atlantic deals on London Heathrow Airport to Las Vegas flight tickets
Virgin Atlantic
7 Aug
LHR16:35London Heathrow
10h 45m
LAS19:20Las Vegas Harry Reid Intl
10 Aug
LAS23:29Las Vegas Harry Reid Intl
22h 56m
1 stop
LHR06:25London Heathrow
£650
Find similar
Virgin Atlantic
8 Aug
LHR11:45London Heathrow
16h 29m
1 stop
LAS20:14Las Vegas Harry Reid Intl
10 Aug
LAS23:29Las Vegas Harry Reid Intl
22h 56m
1 stop
LHR06:25London Heathrow
£654
Find similar
Virgin Atlantic
7 Aug
LHR16:35London Heathrow
10h 45m
LAS19:20Las Vegas Harry Reid Intl
14 Aug
LAS21:10Las Vegas Harry Reid Intl
9h 55m
LHR15:05London Heathrow
£666
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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 279,928 searches. Data last updated 1 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 22/9

06:40-22:26

2 stops23h 46m

Las Vegas Harry Reid Intl

Mon 29/9

12:11-21:40

2 stops25h 29m

£418

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 22/9

06:40-22:26

2 stops23h 46m

Las Vegas Harry Reid Intl

Fri 26/9

12:11-09:20

2 stops37h 09m

£419

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 22/9

07:05-22:26

3 stops23h 21m

Las Vegas Harry Reid Intl

Mon 29/9

12:11-17:40

2 stops21h 29m

£421

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Tue 16/9

21:05-21:09

3 stops32h 04m

Las Vegas Harry Reid Intl

Tue 23/9

12:11-18:30

2 stops22h 19m

£422

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Tue 9/9

21:05-21:19

3 stops32h 14m

Las Vegas Harry Reid Intl

Tue 16/9

12:11-17:40

2 stops21h 29m

£430

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Tue 9/9

10:20-21:19

2 stops18h 59m

Las Vegas Harry Reid Intl

Tue 16/9

12:11-17:40

2 stops21h 29m

£431

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Tue 16/9

21:05-21:09

3 stops32h 04m

Las Vegas Harry Reid Intl

Tue 23/9

09:00-17:40

3 stops24h 40m

£436

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 28/8

06:40-21:16

2 stops22h 36m

Las Vegas Harry Reid Intl

Thu 4/9

10:45-17:40

2 stops22h 55m

£437

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Sat 23/8

13:05-09:40

1 stop28h 35m

Las Vegas Harry Reid Intl

Mon 25/8

07:00-06:20

1 stop15h 20m

£465

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 15/1

09:00-20:39

2 stops19h 39m

Las Vegas Harry Reid Intl

Sun 18/1

09:10-07:10

1 stop14h 00m

£509

Flights are sorted by cheapest return 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 Heathrow Airport 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?

In general, February is the cheapest month to fly from London Heathrow Airport to Las Vegas. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £588. If you’re not able to fly to Las Vegas in February, then January is your next best option. Flight prices from London Heathrow Airport to Las Vegas during January average around £592.

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

The cheapest day to depart on your flight to Las Vegas is on a Tuesday when prices can be found for as low as £580. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £695.

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

Our data shows that the cheapest London Heathrow Airport to Las Vegas flights are usually those with departure times in the morning. Our users have found flights to Las Vegas in the morning for as low as £508. Flights to Las Vegas are more costly in the afternoon, with an average ticket price of £678. 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 Heathrow to Las Vegas Harry Reid Intl flight route?

Fly from London Heathrow to Las Vegas Harry Reid Intl for the best London Heathrow - 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 Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around £680 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from London Heathrow Airport for as low as £620 on momondo.

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

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

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Las Vegas.

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

As of August 2025, prices for London Heathrow Airport to Las Vegas flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Las Vegas

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

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

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

Best price found

£283

Fastest flight time

14h 45m

Direct flights

Tue, Wed, Thu, Fri, Sat and Sun

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from London Heathrow Airport in the past 72 hours is £283. The best return flight deal from London Heathrow Airport to Las Vegas found on momondo in the last 72 hours is £418.
The fastest flight from London Heathrow Airport to Las Vegas takes 14h 45m
Direct flights go from London Heathrow Airport to Las Vegas on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Virgin Atlantic, Delta and Finnair.
There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)
Search flight deals

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

    There are 5207.1 mi between London Heathrow and Las Vegas Harry Reid Intl. In terms of flight time, this usually takes a little over 14h 45m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport 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 you'll need for your trip to Las Vegas Harry Reid Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from London Heathrow Airport to Las Vegas

Compare and see reviews for airlines that fly from London Heathrow Airport to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
Norse Atlantic UKPriceFrom £317Free CancellationRating
7.2
47 reviews
Search Norse Atlantic UK flights
WestJetPriceFrom £398Free CancellationRating
7.2
2,978 reviews
Search WestJet flights
United AirlinesPriceFrom £440Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
IcelandairPriceFrom £456Free CancellationRating
7.0
520 reviews
Search Icelandair flights
Air CanadaPriceFrom £458Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
LufthansaPriceFrom £472Free CancellationRating
6.8
7,275 reviews
Search Lufthansa flights
FinnairPriceFrom £495Free CancellationRating
7.6
1,316 reviews
Search Finnair flights
JetBluePriceFrom £497Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
Aer LingusPriceFrom £498Free CancellationRating
7.1
1,192 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £501Free CancellationRating
6.6
7,222 reviews
Search British Airways flights

  • Delta Flights From London Heathrow Airport to Las Vegas

    Delta flies from London Heathrow Airport to Las Vegas around 7 times per week, with 7,981 momondo users rating the airline 8.0/10. The cheapest Delta deal from London Heathrow Airport to Las Vegas in the last 72 hours was £719 (round-trip), much lower than the average airfare cost of £1,070 for Delta flights on this route.

  • KLM Flights From London Heathrow Airport to Las Vegas

    The best KLM deal for London Heathrow Airport to Las Vegas flight tickets found on momondo in the last 72 hours was £677, round-trip. It should be noted that an average KLM flight deal for this route in this time was higher, at £898 round-trip. KLM operates 7 flights out of London Heathrow Airport into Las Vegas in an average week, so prices vary by time and availability. 1,383 KLM reviews by users on momondo have scored the airline at 7.8/10.

Travelling to a place near Las Vegas?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Las Vegas . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from London to Las Vegas on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential London to Las Vegas flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from London to Las Vegas now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Las Vegas and let you know when they change.

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