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Cheap flights from London to Las Vegas from €344

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 23/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

British Airways Logo
11:50 - 14:50LHR-LAS
11h 00mdirect
British Airways Logo
20:55 - 14:50LAS-LHR
9h 55mdirect
€573British Airways
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Tue, 6 Jan - Tue, 13 Jan
Delta Logo
06:30 - 23:30LHR-LAS
25h 00m2 stops
Delta Logo
21:10 - 15:05LAS-LHR
9h 55mdirect
€574Delta
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Mon, 6 Oct - Tue, 14 Oct
Multiple Airlines Logo
14:30 - 21:19LHR-LAS
14h 49m1 stop
Multiple Airlines Logo
09:30 - 17:15LAS-LHR
23h 45m2 stops
€575Multiple Airlines
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Thu, 2 Oct - Thu, 16 Oct
British Airways Logo
09:55 - 17:17LHR-LAS
15h 22m1 stop
British Airways Logo
11:46 - 09:40LAS-LHR
13h 54m1 stop
€576British Airways
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Wed, 12 Nov - Wed, 19 Nov
Multiple Airlines Logo
14:00 - 21:02LGW-LAS
39h 02m1 stop
Multiple Airlines Logo
18:31 - 10:55LAS-LGW
32h 24m1 stop
€578Multiple Airlines
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Thu, 2 Oct - Thu, 16 Oct
Lufthansa Logo
14:50 - 20:27LHR-LAS
13h 37m1 stop
Lufthansa Logo
13:39 - 09:40LAS-LHR
12h 01m1 stop
€585Lufthansa
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Fri, 3 Oct - Thu, 9 Oct
United Airlines Logo
12:20 - 18:37LHR-LAS
14h 17m1 stop
United Airlines Logo
09:49 - 07:25LAS-LHR
13h 36m1 stop
€586United Airlines
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Sat, 4 Oct - Sun, 12 Oct
United Airlines Logo
16:15 - 22:45LHR-LAS
14h 30m1 stop
United Airlines Logo
14:16 - 12:20LAS-LHR
14h 04m2 stops
€588United Airlines
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Sat, 4 Oct - Sat, 11 Oct
Virgin Atlantic Logo
16:35 - 19:15LHR-LAS
10h 40mdirect
Virgin Atlantic Logo
21:10 - 15:05LAS-LHR
9h 55mdirect
€589Virgin Atlantic
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Thu, 2 Oct - Thu, 16 Oct
Virgin Atlantic Logo
16:35 - 19:15LHR-LAS
10h 40mdirect
Virgin Atlantic Logo
21:10 - 15:05LAS-LHR
9h 55mdirect
€597Virgin Atlantic
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Thu, 2 Oct - Thu, 16 Oct

Air Transat flights from London to Las Vegas

Our best Air Transat deals on London to Las Vegas flight tickets
Air Transat
7 Nov
LGW11:40London Gatwick
35h 07m
1 stop
LAS14:47Las Vegas Harry Reid Intl
27 Nov
LAS15:45Las Vegas Harry Reid Intl
34h 00m
1 stop
LGW09:45London Gatwick
€662
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Air Transat
31 Oct
LGW11:40London Gatwick
17h 22m
1 stop
LAS22:02Las Vegas Harry Reid Intl
14 Apr
LAS12:40Las Vegas Harry Reid Intl
14h 05m
1 stop
LGW10:45London Gatwick
€671
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Air Transat
10 Nov
LGW11:40London Gatwick
18h 22m
1 stop
LAS22:02Las Vegas Harry Reid Intl
27 Nov
LAS15:45Las Vegas Harry Reid Intl
34h 00m
1 stop
LGW09:45London Gatwick
€674
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Delta flights from London to Las Vegas

Our best Delta deals on London to Las Vegas flight tickets
Delta
6 Oct
LHR06:30London Heathrow
25h 00m
2 stops
LAS23:30Las Vegas Harry Reid Intl
14 Oct
LAS21:10Las Vegas Harry Reid Intl
9h 55m
LHR15:05London Heathrow
€574
Find similar
Delta
24 Sept
LHR06:30London Heathrow
18h 33m
2 stops
LAS17:03Las Vegas Harry Reid Intl
6 Oct
LAS21:10Las Vegas Harry Reid Intl
9h 55m
LHR15:05London Heathrow
€576
Find similar
Delta
10 Mar
LHR16:00London Heathrow
10h 50m
LAS19:50Las Vegas Harry Reid Intl
19 Mar
LAS21:45Las Vegas Harry Reid Intl
9h 55m
LHR14:40London Heathrow
€577
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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 18 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

Tue 6/1

11:50-14:50

Nonstop11h 00m

Las Vegas Harry Reid Intl

Tue 13/1

20:55-14:50

Nonstop9h 55m

€573

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Mon 6/10

06:30-23:30

2 stops25h 00m

Las Vegas Harry Reid Intl

Tue 14/10

21:10-15:05

Nonstop9h 55m

€574

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 2/10

14:30-21:19

1 stop14h 49m

Las Vegas Harry Reid Intl

Thu 16/10

09:30-17:15

2 stops23h 45m

€575

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Wed 12/11

09:55-17:17

1 stop15h 22m

Las Vegas Harry Reid Intl

Wed 19/11

11:46-09:40

1 stop13h 54m

€576

LondonLas Vegas

LGW - LAS

LGWLAS

London Gatwick

Thu 2/10

14:00-21:02

1 stop39h 02m

Las Vegas Harry Reid Intl

Thu 16/10

18:31-10:55

1 stop32h 24m

€578

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Fri 3/10

14:50-20:27

1 stop13h 37m

Las Vegas Harry Reid Intl

Thu 9/10

13:39-09:40

1 stop12h 01m

€585

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Sat 4/10

12:20-18:37

1 stop14h 17m

Las Vegas Harry Reid Intl

Sun 12/10

09:49-07:25

1 stop13h 36m

€586

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Sat 4/10

16:15-22:45

1 stop14h 30m

Las Vegas Harry Reid Intl

Sat 11/10

14:16-12:20

2 stops14h 04m

€588

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 2/10

16:35-19:15

Nonstop10h 40m

Las Vegas Harry Reid Intl

Thu 16/10

21:10-15:05

Nonstop9h 55m

€589

LondonLas Vegas

LHR - LAS

LHRLAS

London Heathrow

Thu 2/10

16:35-19:15

Nonstop10h 40m

Las Vegas Harry Reid Intl

Thu 16/10

21:10-15:05

Nonstop9h 55m

€597

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 €595. 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 €622.

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 €703. 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 €815.

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 €755 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 €686 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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