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Cheap flights from London Heathrow Airport to Las Vegas from £304

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 18/11. 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

Delta Logo
11:45 - 14:15LHR-LAS
34h 30m1 stop
Delta Logo
20:45 - 14:40LAS-LHR
9h 55mdirect
£501Delta
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Mon, 12 Jan - Tue, 20 Jan
American Airlines Logo
09:15 - 17:40LHR-LAS
16h 25m1 stop
American Airlines Logo
17:05 - 11:15LAS-LHR
10h 10mdirect
£502American Airlines
Find Deal
Wed, 1 Oct - Wed, 29 Apr
American Airlines Logo
12:30 - 20:52LHR-LAS
15h 22m1 stop
American Airlines Logo
20:55 - 14:50LAS-LHR
9h 55mdirect
£503American Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Lufthansa Logo
20:25 - 16:35LHR-LAS
28h 10m2 stops
Lufthansa Logo
21:10 - 22:10LAS-LHR
17h 00m1 stop
£518Lufthansa
Find Deal
Wed, 1 Oct - Mon, 6 Oct
Virgin Atlantic Logo
16:35 - 19:15LHR-LAS
10h 40mdirect
Virgin Atlantic Logo
21:10 - 15:05LAS-LHR
9h 55mdirect
£519Virgin Atlantic
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Tue, 14 Oct - Thu, 23 Oct
Virgin Atlantic Logo
16:35 - 19:15LHR-LAS
10h 40mdirect
Virgin Atlantic Logo
13:45 - 11:20LAS-LHR
13h 35m1 stop
£520Virgin Atlantic
Find Deal
Thu, 25 Sep - Thu, 2 Oct
Lufthansa Logo
06:30 - 20:07LHR-LAS
20h 37m2 stops
Lufthansa Logo
19:45 - 07:25LAS-LHR
28h 40m1 stop
£521Lufthansa
Find Deal
Tue, 28 Oct - Sat, 1 Nov
Finnair Logo
19:05 - 11:01LHR-LAS
23h 56m2 stops
Finnair Logo
11:45 - 07:50LAS-LHR
36h 05m2 stops
£523Finnair
Find Deal
Fri, 26 Sep - Mon, 29 Sep
British Airways Logo
15:00 - 21:58LHR-LAS
14h 58m1 stop
British Airways Logo
17:05 - 11:15LAS-LHR
10h 10mdirect
£527British Airways
Find Deal
Thu, 2 Oct - Wed, 29 Apr
British Airways Logo
11:15 - 18:15LHR-LAS
15h 00m1 stop
British Airways Logo
15:12 - 12:10LAS-LHR
12h 58m1 stop
£529British Airways
Find Deal
Fri, 3 Oct - Mon, 27 Apr

Delta flights from London Heathrow Airport to Las Vegas

Our best Delta deals on London Heathrow Airport to Las Vegas flight tickets
Delta
12 Jan
LHR11:45London Heathrow
34h 30m
1 stop
LAS14:15Las Vegas Harry Reid Intl
20 Jan
LAS20:45Las Vegas Harry Reid Intl
9h 55m
LHR14:40London Heathrow
£501
Find similar
Delta
7 Oct
LHR16:35London Heathrow
10h 40m
LAS19:15Las Vegas Harry Reid Intl
13 Oct
LAS21:10Las Vegas Harry Reid Intl
9h 55m
LHR15:05London Heathrow
£508
Find similar
Delta
7 Oct
LHR16:35London Heathrow
10h 40m
LAS19:15Las Vegas Harry Reid Intl
30 Apr
LAS09:10Las Vegas Harry Reid Intl
17h 20m
1 stop
LHR10:30London Heathrow
£511
Find similar

American Airlines flights from London Heathrow Airport to Las Vegas

Our best American Airlines deals on London Heathrow Airport to Las Vegas flight tickets
American Airlines
1 Oct
LHR09:15London Heathrow
16h 25m
1 stop
LAS17:40Las Vegas Harry Reid Intl
29 Apr
LAS17:05Las Vegas Harry Reid Intl
10h 10m
LHR11:15London Heathrow
£502
Find similar
American Airlines
29 Oct
LHR12:30London Heathrow
15h 22m
1 stop
LAS20:52Las Vegas Harry Reid Intl
5 Nov
LAS20:55Las Vegas Harry Reid Intl
9h 55m
LHR14:50London Heathrow
£503
Find similar
American Airlines
22 Sept
LHR12:15London Heathrow
16h 35m
1 stop
LAS20:50Las Vegas Harry Reid Intl
29 Sept
LAS08:00Las Vegas Harry Reid Intl
14h 25m
1 stop
LHR06:25London Heathrow
£506
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 16 September 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 12/1

11:45-14:15

1 stop34h 30m

Las Vegas Harry Reid Intl

Tue 20/1

20:45-14:40

Nonstop9h 55m

£501

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Wed 1/10

09:15-17:40

1 stop16h 25m

Las Vegas Harry Reid Intl

Wed 29/4

17:05-11:15

Nonstop10h 10m

£502

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Wed 29/10

12:30-20:52

1 stop15h 22m

Las Vegas Harry Reid Intl

Wed 5/11

20:55-14:50

Nonstop9h 55m

£503

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Wed 1/10

20:25-16:35

2 stops28h 10m

Las Vegas Harry Reid Intl

Mon 6/10

21:10-22:10

1 stop17h 00m

£518

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Tue 14/10

16:35-19:15

Nonstop10h 40m

Las Vegas Harry Reid Intl

Thu 23/10

21:10-15:05

Nonstop9h 55m

£519

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 25/9

16:35-19:15

Nonstop10h 40m

Las Vegas Harry Reid Intl

Thu 2/10

13:45-11:20

1 stop13h 35m

£520

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Tue 28/10

06:30-20:07

2 stops20h 37m

Las Vegas Harry Reid Intl

Sat 1/11

19:45-07:25

1 stop28h 40m

£521

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 26/9

19:05-11:01

2 stops23h 56m

Las Vegas Harry Reid Intl

Mon 29/9

11:45-07:50

2 stops36h 05m

£523

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 2/10

15:00-21:58

1 stop14h 58m

Las Vegas Harry Reid Intl

Wed 29/4

17:05-11:15

Nonstop10h 10m

£527

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 3/10

11:15-18:15

1 stop15h 00m

Las Vegas Harry Reid Intl

Mon 27/4

15:12-12:10

1 stop12h 58m

£529

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 typical price of a round-trip flight between London Heathrow Airport and Las Vegas?

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 £568. 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 £579.

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 £592. 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 £677.

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 £553. Flights to Las Vegas are more costly at midday, with an average ticket price of £665. Departure times at midday 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 £658 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 £598 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?

You could potentially save up to 17% on your flight if you consider stops on a London Heathrow Airport to Las Vegas flight.

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

As of September 2025, prices for London Heathrow Airport to Las Vegas flights are approximately 5% 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

£656

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 Heathrow Airport in the past 72 hours is £656. The best return flight deal from London Heathrow Airport to Las Vegas found on momondo in the last 72 hours is £579.
The fastest flight from London Heathrow Airport to Las Vegas takes 10h 40m
Direct flights go from London Heathrow Airport to Las Vegas every day.
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 10h 40m.

  • 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 £336Free CancellationRating
7.1
49 reviews
Search Norse Atlantic UK flights
WestJetPriceFrom £383Free CancellationRating
7.2
3,091 reviews
Search WestJet flights
United AirlinesPriceFrom £440Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
IcelandairPriceFrom £444Free CancellationRating
7.0
544 reviews
Search Icelandair flights
Air CanadaPriceFrom £450Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
LufthansaPriceFrom £460Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
JetBluePriceFrom £468Free CancellationRating
7.2
2,912 reviews
Search JetBlue flights
FinnairPriceFrom £479Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
Aer LingusPriceFrom £485Free CancellationRating
7.2
1,270 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £491Free CancellationRating
6.6
7,361 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 7,954 momondo users rating the airline 7.9/10. 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 £692, round-trip. It should be noted that an average KLM flight deal for this route in this time was higher, at £904 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. 1,385 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
Henderson
Kingman
Paradise
Laughlin
North Las Vegas
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.

An easier way to manage your Las Vegas trip

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