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$371+ Cheap flights from Las Vegas (LAS) to Heathrow (LHR)

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to London Heathrow are usually found in January or February, booked 67 days in advance, depart on a Monday or Sunday and return on a Wednesday

Cheap 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 June 12, 2025.

Round-trip from

$733
(United)

One-way from

$371
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,307

Good round-trip deal

$774 or less

Good one-way deal

$550 or less
From Las Vegas Harry Reid Intl to London Heathrow
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One-way flight from Las Vegas Harry Reid Intl to London Heathrow
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Highest demand for flights based on searches. 23% potential increase in price ($276 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to London Heathrow.
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Price to beat on a one-way flight from Las Vegas Harry Reid Intl to London Heathrow.
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Find flight deals from Las Vegas to Heathrow

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 June 12, 2025.

This United deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1312:59 amLAS - LHR
1 stop26h 36mMultiple Airlines
Sun 9/2112:10 pmLHR - LAS
1 stop36h 25mMultiple Airlines
Deal found 6/10$733
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:20 amLAS - LHR
1 stop13h 20mBritish Airways
Tue 9/95:20 pmLHR - LAS
Nonstop10h 40mBritish Airways
Deal found 6/11$735
This Air Canada deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:15 amLAS - LHR
1 stop14h 20mAir Canada
Sun 9/212:05 pmLHR - LAS
1 stop16h 07mAir Canada
Deal found 6/11$736
This Scandinavian Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/189:55 amLAS - LHR
2 stops23h 45mScandinavian Airlines
Wed 8/2710:20 amLHR - LAS
2 stops18h 07mScandinavian Airlines
Deal found 6/12$737
This deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1311:00 pmLAS - LHR
1 stop13h 40mUnited Airlines
Fri 9/264:15 pmLHR - LAS
1 stop14h 30mUnited Airlines
Deal found 6/10$739
This Cheapflightsfares deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/19:10 pmLAS - LHR
1 stop15h 30mLufthansa
Mon 9/87:30 pmLHR - LAS
2 stops32h 54mLufthansa
Deal found 6/12$741
This SWISS deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/187:05 pmLAS - LHR
1 stop16h 15mSWISS
Sat 1/108:55 amLHR - LAS
2 stops19h 48mSWISS
Deal found 6/11$747
This deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:45 amLAS - LHR
1 stop18h 05mDelta
Mon 9/299:40 amLHR - LAS
1 stop19h 27mDelta
Deal found 6/10$751
This Virgin Atlantic deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/711:25 amLAS - LHR
1 stop15h 05mVirgin Atlantic
Mon 9/154:35 pmLHR - LAS
Nonstop10h 45mVirgin Atlantic
Deal found 6/11$779
This JetBlue deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1610:35 amLAS - LHR
1 stop14h 55mJetBlue
Fri 8/228:15 amLHR - LAS
1 stop22h 34mJetBlue
Deal found 6/11$782
This Iberia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1612:45 pmLAS - LHR
1 stop14h 05mIberia
Fri 8/226:45 pmLHR - LAS
2 stops36h 04mIberia
Deal found 6/11$790
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1610:05 pmLAS - LHR
Nonstop10h 00mAmerican Airlines
Wed 7/305:20 pmLHR - LAS
Nonstop10h 40mAmerican Airlines
Deal found 6/11$832

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 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 7/9

12:52 am-4:40 pm

3 stops31h 48m

London Heathrow

Wed 7/23

6:00 am-11:37 pm

3 stops25h 37m

$734

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Fri 9/5

9:20 am-6:40 am

1 stop13h 20m

London Heathrow

Tue 9/9

5:20 pm-8:00 pm

Nonstop10h 40m

$735

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Tue 9/9

11:15 am-9:35 am

1 stop14h 20m

London Heathrow

Sun 9/21

2:05 pm-10:12 pm

1 stop16h 07m

$736

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Mon 8/18

9:55 am-5:40 pm

2 stops23h 45m

London Heathrow

Wed 8/27

10:20 am-8:27 pm

2 stops18h 07m

$737

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Mon 9/1

9:10 pm-8:40 pm

1 stop15h 30m

London Heathrow

Mon 9/8

7:30 pm-8:24 pm

2 stops32h 54m

$741

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Mon 8/18

7:05 pm-7:20 pm

1 stop16h 15m

London Heathrow

Sat 1/10

8:55 am-8:43 pm

2 stops19h 48m

$747

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Sat 9/6

3:48 pm-8:45 pm

1 stop20h 57m

London Heathrow

Sat 9/13

8:15 am-9:12 pm

1 stop20h 57m

$749

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Sun 9/7

6:45 am-8:50 am

1 stop18h 05m

London Heathrow

Mon 9/29

9:40 am-9:07 pm

1 stop19h 27m

$751

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Sun 7/20

10:00 pm-4:00 pm

Nonstop10h 00m

London Heathrow

Tue 7/29

3:10 pm-11:47 pm

1 stop16h 37m

$769

Las VegasLondon

LAS - LHR

LASLHR

Las Vegas Harry Reid Intl

Wed 7/23

8:00 am-10:00 am

2 stops18h 00m

London Heathrow

Wed 7/30

3:20 pm-11:04 pm

1 stop15h 44m

$774

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 25 results
1
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The best insider tips for Las Vegas to London Heathrow Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to London Heathrow Airport trip
Airports
LAS

Las Vegas Airport offers a self-service TSA screening trial, simplifying security with video instructions. Ideal for frequent travelers familiar with the process.

Read more about LASby Ramsey Qubein
LHR

For quick access to London, take the Heathrow Express to Paddington Station. It's the fastest way into the city from Heathrow.

Read more about LHRby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on LHR and LAS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 round-trip 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 round-trip flight from Las Vegas to Heathrow. Price data was last updated on June 9, 2025.

The price you pay for your flight from Las Vegas to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Las Vegas to London Heathrow Airport (average of $661). Flying from Las Vegas to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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 June 12, 2025.

It’s typically best to fly out from Las Vegas to London Heathrow Airport in the morning. Doing so could potentially save you 28% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Las Vegas to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Las Vegas to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Las Vegas to London Heathrow Airport flight should consider departing on Sunday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Las Vegas to London Heathrow Airport

Explore weekly flight availability from Las Vegas to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from LAS to LHR are scheduled on a Wednesday (12 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Delta, Finnair and SWISS from Las Vegas to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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), located 6.2 mi from the city center, is the airport you fly out of when you book flights from Las Vegas to London Heathrow. 9 airlines have flights from Harry Reid Intl to London Heathrow on a regular basis. Booking flights from Las Vegas Harry Reid Intl to London Heathrow should not be difficult; the airport handles an average of 9 outbound flights to London Heathrow per day.

  • What are the cheapest airlines flying from Las Vegas to London Heathrow Airport round-trip?

    According to our current data, British Airways ($735), Air Canada ($736), and Scandinavian Airlines ($737) offers the cheapest pricing from Las Vegas to London Heathrow Airport. British Airways is currently priced 18% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from Las Vegas to London Heathrow Airport are JetBlue ($375), WestJet ($381), and Air Canada ($386).

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

    No one likes to see their flight delayed. When booking a flight from Las Vegas to London Heathrow Airport consider choosing Finnair (93%), American Airlines (87%) or Aer Lingus (87%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Las Vegas to London Heathrow Airport? While on average our users pay $1,903, our data indicates the cheapest price to be $398. The most popular route (Las Vegas Harry Reid Intl - London Heathrow), is priced around $630.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Las Vegas to London Heathrow Airport (average of $661). Flying from Las Vegas to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Folkestone
Borehamwood
Broadway
Sutton
Aylesbury
Chelmsford
Brentwood

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Las Vegas to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Las Vegas to Gatwick flights
Las Vegas to London City flights
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Reno to Gatwick flights
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Top 9 airlines flying from Las Vegas to Heathrow

Discover the top 9 airlines 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$502Average$675FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$543Average$1,013FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$580Average$730FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$590Average$872FlexibilityNo cancel feeOn-time71%
DeltaCheapest$591Average$937FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$608Average$950FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$631Average$897FlexibilityNo cancel feeOn-time70%
JetBlueCheapest$750Average$937FlexibilityNo cancel feeOn-time62%
Aer LingusCheapest$880Average$1,270FlexibilityNo cancel feeOn-timeN/A

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