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Cheap flights from London to Las Vegas from €474

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 9/4. 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 return flights

Enter your travel dates to find the best prices.
British Airways Logo
10:30 - 17:30
LHR
-
LAS
15h 00m1 stop
British Airways Logo
10:49 - 07:50
LAS
-
LHR
13h 01m1 stop
€515British Airways
Tue, 7 Apr - Wed, 15 Apr
United Airlines Logo
13:40 - 21:57
LHR
-
LAS
16h 17m1 stop
United Airlines Logo
23:55 - 21:35
LAS
-
LHR
13h 40m1 stop
€515United Airlines
Sat, 11 Apr - Sat, 18 Apr
Delta Logo
16:00 - 18:50
LHR
-
LAS
10h 50mdirect
Delta Logo
21:45 - 14:40
LAS
-
LHR
9h 55mdirect
€516Delta
Mon, 2 Mar - Mon, 16 Mar
Delta Logo
16:00 - 18:50
LHR
-
LAS
10h 50mdirect
Delta Logo
21:45 - 14:40
LAS
-
LHR
9h 55mdirect
€517Delta
Mon, 2 Mar - Mon, 16 Mar
Delta Logo
16:00 - 18:50
LHR
-
LAS
10h 50mdirect
Delta Logo
17:56 - 16:50
LAS
-
LHR
15h 54m1 stop
€518Delta
Mon, 2 Mar - Mon, 16 Mar
Delta Logo
16:00 - 18:50
LHR
-
LAS
10h 50mdirect
Delta Logo
21:45 - 14:40
LAS
-
LHR
9h 55mdirect
€519Delta
Mon, 2 Mar - Mon, 16 Mar
British Airways Logo
18:15 - 20:16
LHR
-
LAS
34h 01m2 stops
British Airways Logo
09:49 - 06:55
LAS
-
LHR
13h 06m1 stop
€521British Airways
Mon, 29 Jun - Tue, 21 Jul
KLM Logo
16:00 - 18:50
LHR
-
LAS
10h 50mdirect
KLM Logo
14:02 - 11:40
LAS
-
LHR
13h 38m1 stop
€521KLM
Tue, 10 Feb - Tue, 17 Feb
SWISS Logo
18:40 - 20:52
LGW
-
LAS
34h 12m2 stops
SWISS Logo
16:25 - 17:50
LAS
-
LGW
17h 25m2 stops
€523SWISS
Wed, 21 Jan - Sun, 25 Jan
SWISS Logo
18:40 - 12:05
LGW
-
LAS
25h 25m2 stops
SWISS Logo
16:25 - 17:50
LAS
-
LGW
17h 25m2 stops
€526SWISS
Tue, 17 Feb - Sun, 22 Feb

United Airlines flights from London to Las Vegas

Our best United Airlines deals on London to Las Vegas flight tickets
United Airlines
11 Apr
LHR13:40London Heathrow
16h 17m
1 stop
LAS21:57Las Vegas Harry Reid Intl
18 Apr
LAS23:55Las Vegas Harry Reid Intl
13h 40m
1 stop
LHR21:35London Heathrow
€515
United Airlines
9 Apr
LHR11:25London Heathrow
20h 34m
2 stops
LAS23:59Las Vegas Harry Reid Intl
18 Apr
LAS23:55Las Vegas Harry Reid Intl
13h 40m
1 stop
LHR21:35London Heathrow
€522
United Airlines
13 Apr
LHR09:30London Heathrow
19h 28m
2 stops
LAS20:58Las Vegas Harry Reid Intl
20 Apr
LAS14:15Las Vegas Harry Reid Intl
14h 05m
2 stops
LHR12:20London Heathrow
€523

SWISS flights from London to Las Vegas

Our best SWISS deals on London to Las Vegas flight tickets
SWISS
21 Jan
LGW18:40London Gatwick
34h 12m
2 stops
LAS20:52Las Vegas Harry Reid Intl
25 Jan
LAS16:25Las Vegas Harry Reid Intl
17h 25m
2 stops
LGW17:50London Gatwick
€523
SWISS
17 Feb
LGW18:40London Gatwick
25h 25m
2 stops
LAS12:05Las Vegas Harry Reid Intl
22 Feb
LAS16:25Las Vegas Harry Reid Intl
17h 25m
2 stops
LGW17:50London Gatwick
€526
SWISS
1 Jul
LGW09:15London Gatwick
15h 10m
1 stop
LAS16:25Las Vegas Harry Reid Intl
20 Jul
LAS19:20Las Vegas Harry Reid Intl
14h 30m
1 stop
LGW17:50London Gatwick
€535

momondo Fare Finder

 
Customise 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 13,528 searches. Data last updated 11 January 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

Tue 7/4

10:30-17:30

1 stop15h 00m

Las Vegas Harry Reid Intl

Wed 15/4

10:49-07:50

1 stop13h 01m

€515

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Sat 11/4

13:40-21:57

1 stop16h 17m

Las Vegas Harry Reid Intl

Sat 18/4

23:55-21:35

1 stop13h 40m

€515

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 2/3

16:00-18:50

Nonstop10h 50m

Las Vegas Harry Reid Intl

Mon 16/3

21:45-14:40

Nonstop9h 55m

€516

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 2/3

16:00-18:50

Nonstop10h 50m

Las Vegas Harry Reid Intl

Mon 16/3

21:45-14:40

Nonstop9h 55m

€517

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 2/3

16:00-18:50

Nonstop10h 50m

Las Vegas Harry Reid Intl

Mon 16/3

17:56-16:50

1 stop15h 54m

€518

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 2/3

16:00-18:50

Nonstop10h 50m

Las Vegas Harry Reid Intl

Mon 16/3

21:45-14:40

Nonstop9h 55m

€519

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 29/6

18:15-20:16

2 stops34h 01m

Las Vegas Harry Reid Intl

Tue 21/7

09:49-06:55

1 stop13h 06m

€521

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Tue 10/2

16:00-18:50

Nonstop10h 50m

Las Vegas Harry Reid Intl

Tue 17/2

14:02-11:40

1 stop13h 38m

€521

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Wed 21/1

18:40-20:52

2 stops34h 12m

Las Vegas Harry Reid Intl

Sun 25/1

16:25-17:50

2 stops17h 25m

€523

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Tue 17/2

18:40-12:05

2 stops25h 25m

Las Vegas Harry Reid Intl

Sun 22/2

16:25-17:50

2 stops17h 25m

€526

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 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 and Las Vegas?

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 €610. If you aren’t able to travel to Las Vegas during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of €649.

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 €752 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 for as low as €703 on momondo.

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

There is only 1 cabin class 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.

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

As of January 2026, prices for London to Las Vegas flights are approximately 42% 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 return 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

Fastest flight time

10h 40m

Direct flights

Every day

Airports in Las Vegas

1 airport
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?

    The distance between London and Las Vegas Harry Reid Intl is about 8395.4 km. In terms of flight time, this usually takes a little over 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 updated daily.

  • How old do you have to be to fly from London 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 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 licence 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 to Las Vegas?

Travelling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Henderson

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?

Flights from London to Las Vegas with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

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

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