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$365+ Cheap flights from Alaska 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Alaska to Heathrow

Keep the following information in mind while searching for Alaska to Heathrow flight deals. Data was last updated August 20, 2025.

Round-trip from

$743
(Expedia)

One-way from

$365
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$1,421
From Alaska to London Heathrow
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One-way flight from Alaska to London Heathrow
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Highest demand for flights based on searches. 13% potential increase in price ($172 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Alaska to Heathrow

Cheapest flights from Alaska to Heathrow
Explore the most affordable flight options available from Alaska to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This American Airlines deal was found by Cheapflights users on 8/18. 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.
Tue 9/302:45 amANC - LHR
1 stop19h 05mMultiple Airlines
Fri 10/319:25 amLHR - ANC
1 stop17h 22mMultiple Airlines
Deal found 8/18$750
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:15 amANC - LHR
1 stop18h 00mDelta
Fri 10/316:20 amLHR - ANC
2 stops20h 11mDelta
Deal found 8/18$751
This Delta deal was found by Cheapflights users on 8/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:15 amANC - LHR
1 stop21h 55mDelta
Tue 9/306:15 amLHR - ANC
2 stops23h 04mDelta
Deal found 8/19$752
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/912:55 amANC - LHR
2 stops20h 50mDelta
Tue 9/306:15 amLHR - ANC
2 stops23h 04mDelta
Deal found 8/18$756
This KLM deal was found by Cheapflights users on 8/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2411:15 amANC - LHR
1 stop18h 00mKLM
Tue 9/305:25 pmLHR - ANC
1 stop17h 12mKLM
Deal found 8/19$760
This Delta deal was found by Cheapflights users on 8/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/21:45 amFAI - LHR
1 stop23h 45mDelta
Sun 11/236:20 amLHR - FAI
2 stops26h 57mDelta
Deal found 8/20$793
This Ovago deal was found by Cheapflights users on 8/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/277:52 pmANC - LHR
1 stop26h 58mBritish Airways
Mon 11/108:20 amLHR - ANC
1 stop19h 55mBritish Airways
Deal found 8/20$794
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Sun 10/192:26 amANC - LHR
1 stop19h 24mMultiple Airlines
Mon 10/272:55 pmLHR - ANC
1 stop19h 09mMultiple Airlines
Deal found 8/19$800
This KLM deal was found by Cheapflights users on 8/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:50 amFAI - LHR
1 stop24h 40mKLM
Sat 11/2212:20 pmLHR - FAI
1 stop20h 57mKLM
Deal found 8/20$801
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:00 amANC - LHR
1 stop23h 15mDelta
Tue 10/711:30 amLHR - ANC
2 stops20h 13mDelta
Deal found 8/18$801
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/23:05 pmFAI - LHR
1 stop14h 10mDelta
Thu 10/911:30 amLHR - FAI
2 stops22h 10mDelta
Deal found 8/18$803
This Delta deal was found by Cheapflights users on 8/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:50 amFAI - LHR
2 stops23h 30mDelta
Sat 11/228:50 amLHR - FAI
2 stops24h 27mDelta
Deal found 8/20$805

Cheapflights Fare Finder

 
Customize your flight search to find flights from Alaska 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 August 20, 2025.
Use the filters below to find and compare flights from Alaska to London Heathrow Airport that are best for you.

Fly from

Alaska

Fly to

Heathrow

Route

Depart

Return

Price

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 12/2

6:05 am-12:20 pm

1 stop21h 15m

London Heathrow

Thu 12/11

11:50 am-12:30 am

1 stop21h 40m

$750

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 9/30

2:45 am-6:50 am

1 stop19h 05m

London Heathrow

Fri 10/31

9:25 am-6:47 pm

1 stop17h 22m

$750

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 10/1

11:15 am-2:15 pm

1 stop18h 00m

London Heathrow

Fri 10/31

6:20 am-6:31 pm

2 stops20h 11m

$751

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 9/24

6:15 am-1:10 pm

1 stop21h 55m

London Heathrow

Tue 9/30

6:15 am-8:19 pm

2 stops23h 04m

$752

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 12/2

1:15 pm-12:50 pm

1 stop14h 35m

London Heathrow

Thu 12/11

6:20 am-7:10 pm

2 stops21h 50m

$752

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 9/9

12:55 am-6:45 am

2 stops20h 50m

London Heathrow

Tue 9/30

6:15 am-8:19 pm

2 stops23h 04m

$756

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Sun 11/2

1:45 am-10:30 am

1 stop23h 45m

London Heathrow

Sun 11/23

6:20 am-12:17 am

2 stops26h 57m

$793

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Sat 11/1

1:50 am-10:30 am

1 stop24h 40m

London Heathrow

Sat 11/22

12:20 pm-12:17 am

1 stop20h 57m

$801

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Sun 11/2

1:45 am-10:30 am

1 stop23h 45m

London Heathrow

Sun 11/23

12:20 pm-12:17 am

1 stop20h 57m

$801

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Mon 11/3

1:45 am-10:30 am

1 stop23h 45m

London Heathrow

Sat 11/22

12:20 pm-12:17 am

1 stop20h 57m

$801

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 37 results
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Best time to book a flight from Alaska to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Alaska 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 Alaska to London Heathrow Airport

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

Currently, November is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of $661). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 AK to LHR?

Find hourly flight availability from Alaska 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 August 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Alaska to London Heathrow Airport as you normally would.

How much does it cost to fly round-trip from Alaska to London Heathrow Airport?

Related info for your journey

Find useful and relevant information for your journey from Alaska to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like Delta, KLM, and Icelandair fly from Alaska to London Heathrow Airport in about 18h. The time it takes to get you to your destination can typically vary by up to 6h 40m. There are 4471 mi between Alaska and London Heathrow Airport. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Alaska to London Heathrow Airport?

    The most popular flight routes from Alaska to London Heathrow Airport are Anchorage - London Heathrow, Fairbanks - London Heathrow and Juneau Intl - London Heathrow.

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

    Yes. In addition to deals on Alaska to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Alaska to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Alaska 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 Alaska to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of $661). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Southend-on-Sea
Harrow
Canterbury
Croydon
Dartford
Dover
Stratford-upon-Avon
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Bedford
Folkestone
Chichester

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Alternative routes for Alaska to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Alaska to Heathrow

Discover the top 3 airlines that operate flights from Alaska 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$689Average$1,311FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$766Average$1,300FlexibilityNo cancel feeOn-time70%
DeltaCheapest$776Average$1,093FlexibilityNo cancel feeOn-timeN/A

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