Cheap flights from Las Vegas to London Heathrow Airport from £145

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — LHR
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to London Heathrow are usually found in January or February, booked 64 days in advance, depart on a Sunday or Saturday and return on a Tuesday

Cheap flight deals from Las Vegas to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Las Vegas to Heathrow
Explore the most affordable flight options available from Las Vegas to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Tue 30/1210:43LAS - LHR
1 stop18h 47mMultiple Airlines
Tue 27/114:30LHR - LAS
2 stops17h 29mMultiple Airlines
Deal found 3/12£448
Tue 30/1219:10LAS - LHR
2 stops28h 00mAir Canada
Tue 27/109:00LHR - LAS
2 stops19h 39mAir Canada
Deal found 3/12£450
Wed 10/1205:20LAS - LHR
2 stops17h 20mUnited Airlines
Tue 16/1210:05LHR - LAS
2 stops17h 56mUnited Airlines
Deal found 2/12£451
Tue 30/1220:55LAS - LHR
Nonstop9h 55mBritish Airways
Tue 27/116:05LHR - LAS
Nonstop10h 45mBritish Airways
Deal found 3/12£473
Wed 31/1220:55LAS - LHR
Nonstop9h 55mBritish Airways
Wed 7/116:05LHR - LAS
Nonstop10h 45mBritish Airways
Deal found 3/12£485
Thu 11/1210:55LAS - LHR
1 stop13h 00mBrussels Airlines
Sun 14/1207:40LHR - LAS
1 stop18h 44mBrussels Airlines
Deal found 2/12£492
Fri 12/1206:15LAS - LHR
1 stop21h 35mMultiple Airlines
Sun 25/106:00LHR - LAS
2 stops22h 52mMultiple Airlines
Deal found 3/12£498
Wed 31/1206:21LAS - LHR
1 stop16h 44mVirgin Atlantic
Wed 7/116:00LHR - LAS
Nonstop10h 50mVirgin Atlantic
Deal found 3/12£499
Sun 14/1210:47LAS - LHR
1 stop18h 43mMultiple Airlines
Fri 9/118:00LHR - LAS
1 stop25h 20mMultiple Airlines
Deal found 3/12£501
Wed 31/1206:00LAS - LHR
2 stops17h 10mAir Canada
Wed 7/113:25LHR - LAS
1 stop15h 14mAir Canada
Deal found 3/12£501

Find flight deals from Las Vegas to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 December 2025.

Round-trip from

£447

One-way from

£145

Popular in

June

Cheapest in

January

Average price

£857

Good round-trip deal

£454 or less

Good one-way deal

£338 or less
Air Canada
  • Air Canada
  • 1/4-15/4
  • 3 total stops
  • 36h 40m total
  • Las Vegas to London
30/1
  • 30/1
  • 3 total stops
  • 57h 35m total
  • Las Vegas to London
Highest demand for flights based on searches. 24% potential increase in price (£163 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to London Heathrow.
Price to beat on a one-way flight from Las Vegas Harry Reid Intl to London Heathrow.

Cheapflights Fare Finder

 
Customise your flight search to find flights from Las Vegas to Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 5 December 2025.
Use the filters below to find and compare flights from Las Vegas to London Heathrow Airport that are best for you.

Fly from

Las Vegas

Fly to

Heathrow

Route

Depart

Return

Price

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 4/2

13:10-21:40

2 stops24h 30m

London Heathrow

Mon 9/2

06:40-20:55

2 stops22h 15m

£449

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 21/1

09:40-17:40

2 stops24h 00m

London Heathrow

Thu 29/1

06:40-22:16

2 stops23h 36m

£449

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 4/3

13:55-17:40

2 stops19h 45m

London Heathrow

Mon 16/3

10:20-23:12

2 stops19h 52m

£449

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 11/3

07:00-09:20

2 stops19h 20m

London Heathrow

Mon 16/3

06:40-21:59

2 stops22h 19m

£449

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Mon 2/2

07:00-17:40

2 stops26h 40m

London Heathrow

Sat 21/2

10:20-23:11

2 stops20h 51m

£449

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 11/2

09:40-21:35

3 stops27h 55m

London Heathrow

Thu 19/2

06:40-21:06

2 stops22h 26m

£452

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Tue 10/3

07:00-09:20

2 stops19h 20m

London Heathrow

Tue 17/3

07:05-23:12

3 stops23h 07m

£452

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Tue 6/1

15:10-13:45

1 stop14h 35m

London Heathrow

Tue 13/1

08:40-14:15

1 stop13h 35m

£453

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Mon 5/1

10:19-10:00

1 stop15h 41m

London Heathrow

Tue 20/1

10:10-19:14

1 stop17h 04m

£453

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Thu 15/1

11:56-10:15

1 stop14h 19m

London Heathrow

Thu 22/1

06:30-14:15

1 stop15h 45m

£460

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Las Vegas to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Las Vegas with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Las Vegas to London Heathrow Airport

How far ahead should I book a flight from Las Vegas to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Las Vegas to Heathrow. Price data was last updated on 28 November 2025.

To ensure you get the cheapest price possible for a flight from Las Vegas to London Heathrow Airport, you should look to book at least 64 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Las Vegas to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Las Vegas to London Heathrow Airport (average of £372). Flying from Las Vegas to London Heathrow Airport in June is currently the most expensive (average of £770). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LAS to LHR?

Find hourly flight availability from Las Vegas to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 December 2025.

When flying from Las Vegas to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 21% versus a flight at midday.

How much does it cost for a return flight from Las Vegas to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 5 December 2025.
Get a feel of what it's like to fly with Virgin Atlantic from Las Vegas to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.2

Overall

7.5

Comfort

7.3

Food

6.9

Entertainment

7.5

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Crew

8.2

Overall

7.5

Comfort

7.3

Food

6.9

Entertainment

7.5

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Las Vegas to London Heathrow?

    Las Vegas Harry Reid Intl (LAS) is the airport you will fly out of if you book a flight from Las Vegas to London Heathrow. You should not have trouble finding flights to London Heathrow from Harry Reid Intl; the airport handles an average of 7 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Las Vegas airport to London Heathrow. It is only a 6.2 mi journey to Harry Reid Intl (LAS) from Las Vegas’s city center.

  • How long is the flight from Las Vegas to London Heathrow Airport?

    Scandinavian Airlines can get you from Las Vegas to London Heathrow Airport in just under 24h 30m. Your travel time can differ by up to . The distance between Las Vegas and London Heathrow Airport is about 5213 mi.

  • What is the cheapest airline to fly from Las Vegas to London Heathrow Airport round-trip?

    Our cheapest airline available from Las Vegas to London Heathrow Airport is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £417 on this airline. You may be able to fly from Las Vegas to London Heathrow Airport for 39% less than the average price by searching for this airline.

  • What are the cheapest airlines to fly from Las Vegas to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at £278. Virgin Atlantic flights start at £298 while deals on Iberia start at £312 one-way.

  • What are the most reliable airlines from Las Vegas to London Heathrow Airport?

    Consider Air France (78%), Delta (78%) or Virgin Atlantic (78%) when booking your flight. These represent the most reliable airlines when flying from Las Vegas to London Heathrow Airport.

  • What are the cheapest flights from Las Vegas to London Heathrow Airport?

    Looking at all options, your cheapest flight can be booked for £309. While the most popular route (Las Vegas Harry Reid Intl - London Heathrow) can be booked for £414 on average, our data indicates £723 when flying from Las Vegas to London Heathrow Airport.

  • Can I find deals for flights from Las Vegas to Heathrow that include hotel bookings?

    Yes. In addition to deals on Las Vegas to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Las Vegas to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to Heathrow.

  • Can I find deals for business class flights from Las Vegas to Heathrow?

    Yes. Cheapflights offers flight deals from Las Vegas to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Las Vegas to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Las Vegas to London Heathrow Airport (average of £372). Flying from Las Vegas to London Heathrow Airport in June is currently the most expensive (average of £770). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Northampton
Hounslow
Slough
Gatwick
Luton
Ilford
Wembley
Colchester
Brentford
Watford
Hayes
Crawley
Deal
Winchester
Swindon
Romford
Bedford
Chichester

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Las Vegas to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Las Vegas to Heathrow

Discover the top airline that operate flights from Las Vegas to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£417Average£697FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Las Vegas to Heathrow?

Cheapflights helps you search for flights from Las Vegas to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Las Vegas to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Las Vegas to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Las Vegas to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Las Vegas to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Las Vegas to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Las Vegas to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.