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Cheap flights from London to Las Vegas from €379

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 29/9. 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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0 bags
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Cheap return flights

SWISS Logo
07:00 - 16:35LHR-LAS
17h 35m2 stops
SWISS Logo
19:05 - 16:25LAS-LHR
13h 20m1 stop
€586SWISS
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Thu, 9 Oct - Mon, 13 Oct
Delta Logo
16:35 - 19:15LHR-LAS
10h 40mdirect
Delta Logo
21:10 - 15:05LAS-LHR
9h 55mdirect
€588Delta
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Tue, 7 Oct - Mon, 13 Oct
Logo
10:55 - 07:40LGW-LAS
28h 45m1 stop
Logo
06:00 - 10:55LAS-LGW
20h 55m1 stop
€589
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Fri, 26 Sep - Sun, 5 Oct
United Airlines Logo
14:50 - 21:47LHR-LAS
14h 57m1 stop
United Airlines Logo
23:45 - 20:40LAS-LHR
12h 55m1 stop
€590United Airlines
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Fri, 26 Sep - Fri, 3 Oct
United Airlines Logo
14:50 - 20:27LHR-LAS
13h 37m1 stop
United Airlines Logo
13:39 - 09:40LAS-LHR
12h 01m1 stop
€590United Airlines
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Fri, 3 Oct - Wed, 8 Oct
American Airlines Logo
10:25 - 13:20LGW-LAS
10h 55mdirect
American Airlines Logo
06:35 - 08:10LAS-LGW
17h 35m2 stops
€593American Airlines
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Thu, 2 Oct - Thu, 16 Oct
British Airways Logo
10:25 - 13:20LGW-LAS
10h 55mdirect
British Airways Logo
15:10 - 09:20LAS-LGW
10h 10mdirect
€596British Airways
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Tue, 14 Oct - Tue, 21 Oct
Logo
08:30 - 21:29LHR-LAS
20h 59m2 stops
Logo
12:20 - 21:00LAS-LHR
24h 40m2 stops
€598
Find Deal
Thu, 2 Oct - Thu, 16 Oct
British Airways Logo
10:25 - 13:20LGW-LAS
10h 55mdirect
British Airways Logo
15:10 - 09:20LAS-LGW
10h 10mdirect
€602British Airways
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Thu, 9 Oct - Tue, 14 Oct
American Airlines Logo
15:05 - 21:14LGW-LAS
38h 09m2 stops
American Airlines Logo
05:15 - 08:10LAS-LGW
18h 55m2 stops
€608American Airlines
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Thu, 2 Oct - Thu, 16 Oct

Delta flights from London to Las Vegas

Our best Delta deals on London to Las Vegas flight tickets
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
€588
Find similar
Delta
7 Oct
LHR16:35London Heathrow
10h 40m
LAS19:15Las Vegas Harry Reid Intl
21 Oct
LAS11:35Las Vegas Harry Reid Intl
17h 35m
1 stop
LHR13:10London Heathrow
€589
Find similar
Delta
7 Oct
LHR16:35London Heathrow
10h 40m
LAS19:15Las Vegas Harry Reid Intl
12 Oct
LAS21:50Las Vegas Harry Reid Intl
26h 15m
1 stop
LHR08:05London Heathrow
€593
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Air Transat flights from London to Las Vegas

Our best Air Transat deals on London to Las Vegas flight tickets
Air Transat
10 Nov
LGW11:40London Gatwick
32h 02m
1 stop
LAS11:42Las Vegas Harry Reid Intl
20 Nov
LAS23:05Las Vegas Harry Reid Intl
26h 40m
1 stop
LGW09:45London Gatwick
€665
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Air Transat
31 Oct
LGW11:40London Gatwick
17h 22m
1 stop
LAS22:02Las Vegas Harry Reid Intl
10 Nov
LAS23:05Las Vegas Harry Reid Intl
26h 40m
1 stop
LGW09:45London Gatwick
€688
Find similar
Air Transat
29 Nov
LGW11:40London Gatwick
18h 22m
1 stop
LAS22:02Las Vegas Harry Reid Intl
5 Dec
LAS23:05Las Vegas Harry Reid Intl
26h 40m
1 stop
LGW09:45London Gatwick
€688
Find similar

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 14 September 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

Thu 9/10

07:00-16:35

2 stops17h 35m

Las Vegas Harry Reid Intl

Mon 13/10

19:05-16:25

1 stop13h 20m

€586

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Tue 7/10

16:35-19:15

Nonstop10h 40m

Las Vegas Harry Reid Intl

Mon 13/10

21:10-15:05

Nonstop9h 55m

€588

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Fri 26/9

10:55-07:40

1 stop28h 45m

Las Vegas Harry Reid Intl

Sun 5/10

06:00-10:55

1 stop20h 55m

€589

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 26/9

14:50-21:47

1 stop14h 57m

Las Vegas Harry Reid Intl

Fri 3/10

23:45-20:40

1 stop12h 55m

€590

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 3/10

14:50-20:27

1 stop13h 37m

Las Vegas Harry Reid Intl

Wed 8/10

13:39-09:40

1 stop12h 01m

€590

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Thu 2/10

10:25-13:20

Nonstop10h 55m

Las Vegas Harry Reid Intl

Thu 16/10

06:35-08:10

2 stops17h 35m

€593

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Tue 14/10

10:25-13:20

Nonstop10h 55m

Las Vegas Harry Reid Intl

Tue 21/10

15:10-09:20

Nonstop10h 10m

€596

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 2/10

08:30-21:29

2 stops20h 59m

Las Vegas Harry Reid Intl

Thu 16/10

12:20-21:00

2 stops24h 40m

€598

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Thu 9/10

10:25-13:20

Nonstop10h 55m

Las Vegas Harry Reid Intl

Tue 14/10

15:10-09:20

Nonstop10h 10m

€602

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Thu 2/10

15:05-21:14

2 stops38h 09m

Las Vegas Harry Reid Intl

Thu 16/10

05:15-08:10

2 stops18h 55m

€608

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 €601. 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 €628.

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

The cheapest day to depart from London to Las Vegas is on a Monday. Travellers who choose to depart for Las Vegas on a Monday will often find tickets for as low as €710. On the other hand, Thursday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €823.

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

Fly from London Gatwick 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 €762 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 €693 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 September 2025, prices for London to Las Vegas flights are approximately 37% cheaper 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 near Las Vegas: Las Vegas Harry Reid Intl (LAS)
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  • 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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