Cheap flights from London to Las Vegas from €408

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 27/1. 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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0 bags
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Cheap return flights

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United Airlines Logo
13:45 - 20:52LHR-LAS
15h 07m1 stop
United Airlines Logo
09:00 - 07:55LAS-LHR
14h 55m2 stops
€541United Airlines
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Fri, 16 Jan - Fri, 23 Jan
United Airlines Logo
10:25 - 18:25LHR-LAS
16h 00m1 stop
United Airlines Logo
13:10 - 09:40LAS-LHR
12h 30m1 stop
€542United Airlines
Find Deal
Fri, 30 Jan - Tue, 10 Feb
United Airlines Logo
11:35 - 19:02LHR-LAS
15h 27m1 stop
United Airlines Logo
05:20 - 09:40LAS-LHR
20h 20m1 stop
€543United Airlines
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Thu, 8 Jan - Wed, 21 Jan
United Airlines Logo
08:30 - 18:17LHR-LAS
17h 47m2 stops
United Airlines Logo
10:29 - 09:40LAS-LHR
15h 11m2 stops
€544United Airlines
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Thu, 21 May - Tue, 26 May
British Airways Logo
14:10 - 21:22LHR-LAS
15h 12m1 stop
British Airways Logo
09:20 - 06:20LAS-LHR
13h 00m1 stop
€545British Airways
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Mon, 20 Apr - Thu, 14 May
Delta Logo
10:45 - 23:59LHR-LAS
21h 14m1 stop
Delta Logo
23:59 - 07:05LAS-LHR
23h 06m1 stop
€547Delta
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Sun, 28 Dec - Sun, 4 Jan
Delta Logo
10:45 - 18:11LHR-LAS
15h 26m1 stop
Delta Logo
22:55 - 16:50LAS-LHR
9h 55mdirect
€548Delta
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Sat, 27 Dec - Mon, 5 Jan
Multiple Airlines Logo
14:00 - 09:43LGW-LAS
27h 43m1 stop
Multiple Airlines Logo
23:59 - 10:00LAS-LGW
26h 01m2 stops
€567Multiple Airlines
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Thu, 8 Jan - Wed, 21 Jan
SWISS Logo
18:40 - 12:05LGW-LAS
25h 25m2 stops
SWISS Logo
15:55 - 17:50LAS-LGW
17h 55m2 stops
€639SWISS
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Tue, 10 Feb - Wed, 18 Feb
SWISS Logo
18:40 - 20:52LGW-LAS
34h 12m2 stops
SWISS Logo
16:25 - 17:50LAS-LGW
17h 25m2 stops
€677SWISS
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Sun, 18 Jan - Sun, 25 Jan

United Airlines flights from London to Las Vegas

Our best United Airlines deals on London to Las Vegas flight tickets
United Airlines
16 Jan
LHR13:45London Heathrow
15h 07m
1 stop
LAS20:52Las Vegas Harry Reid Intl
23 Jan
LAS09:00Las Vegas Harry Reid Intl
14h 55m
2 stops
LHR07:55London Heathrow
United Airlines
30 Jan
LHR10:25London Heathrow
16h 00m
1 stop
LAS18:25Las Vegas Harry Reid Intl
10 Feb
LAS13:10Las Vegas Harry Reid Intl
12h 30m
1 stop
LHR09:40London Heathrow
United Airlines
8 Jan
LHR11:35London Heathrow
15h 27m
1 stop
LAS19:02Las Vegas Harry Reid Intl
21 Jan
LAS05:20Las Vegas Harry Reid Intl
20h 20m
1 stop
LHR09:40London Heathrow

British Airways flights from London to Las Vegas

Our best British Airways deals on London to Las Vegas flight tickets
British Airways
20 Apr
LHR14:10London Heathrow
15h 12m
1 stop
LAS21:22Las Vegas Harry Reid Intl
14 May
LAS09:20Las Vegas Harry Reid Intl
13h 00m
1 stop
LHR06:20London Heathrow
British Airways
3 Feb
LHR16:05London Heathrow
10h 45m
LAS18:50Las Vegas Harry Reid Intl
13 Feb
LAS10:42Las Vegas Harry Reid Intl
13h 08m
1 stop
LHR07:50London Heathrow
British Airways
8 Jan
LHR16:05London Heathrow
10h 45m
LAS18:50Las Vegas Harry Reid Intl
21 Jan
LAS18:35Las Vegas Harry Reid Intl
9h 55m
LHR12:30London Heathrow

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 28 November 2025.
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

Fri 16/1

13:45-20:52

1 stop15h 07m

Las Vegas Harry Reid Intl

Fri 23/1

09:00-07:55

2 stops14h 55m

€541

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 30/1

10:25-18:25

1 stop16h 00m

Las Vegas Harry Reid Intl

Tue 10/2

13:10-09:40

1 stop12h 30m

€542

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 8/1

11:35-19:02

1 stop15h 27m

Las Vegas Harry Reid Intl

Wed 21/1

05:20-09:40

1 stop20h 20m

€543

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 21/5

08:30-18:17

2 stops17h 47m

Las Vegas Harry Reid Intl

Tue 26/5

10:29-09:40

2 stops15h 11m

€544

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 20/4

14:10-21:22

1 stop15h 12m

Las Vegas Harry Reid Intl

Thu 14/5

09:20-06:20

1 stop13h 00m

€545

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Sun 28/12

10:45-23:59

1 stop21h 14m

Las Vegas Harry Reid Intl

Sun 4/1

23:59-07:05

1 stop23h 06m

€547

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Sat 27/12

10:45-18:11

1 stop15h 26m

Las Vegas Harry Reid Intl

Mon 5/1

22:55-16:50

Nonstop9h 55m

€548

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Thu 8/1

14:00-09:43

1 stop27h 43m

Las Vegas Harry Reid Intl

Wed 21/1

23:59-10:00

2 stops26h 01m

€567

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Tue 10/2

18:40-12:05

2 stops25h 25m

Las Vegas Harry Reid Intl

Wed 18/2

15:55-17:50

2 stops17h 55m

€639

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Sun 18/1

18:40-20:52

2 stops34h 12m

Las Vegas Harry Reid Intl

Sun 25/1

16:25-17:50

2 stops17h 25m

€677

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 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 €626. If you aren’t able to travel to Las Vegas during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of €651.

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 €770 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 €709 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 November 2025, prices for London to Las Vegas flights are approximately 10% 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 45m

Direct flights

Every day

Airports in Las Vegas

1 airport
The fastest flight from London to Las Vegas takes 10h 45m
Direct flights go from London to Las Vegas every day.
There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)
  • 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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1 adult
Sun 28/12
Sun 4/1

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