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Cheap flights from Alaska to London Heathrow Airport from £351

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
15 Mar — 22 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Alaska to Heathrow

Enter your travel dates to find the best prices.

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 13 February 2026.

Fri 25/906:00
ANC
-
LHR
2 stops25h 00m
Scandinavian Airlines
Sat 3/1006:40
LHR
-
ANC
2 stops24h 42m
Scandinavian Airlines
Deal found 12/2£557
Mon 20/409:21
ANC
-
LHR
2 stops25h 59m
Icelandair
Wed 29/413:05
LHR
-
ANC
2 stops18h 38m
Icelandair
Deal found 13/2£632
Sun 12/412:10
ANC
-
LHR
2 stops23h 10m
Icelandair
Tue 21/421:25
LHR
-
ANC
2 stops34h 18m
Icelandair
Deal found 11/2£633
Sun 5/421:04
ANC
-
LHR
2 stops27h 56m
Multiple Airlines
Tue 21/406:55
LHR
-
ANC
2 stops24h 50m
Multiple Airlines
Deal found 9/2£654
Sun 5/421:04
ANC
-
LHR
2 stops27h 56m
Multiple Airlines
Tue 14/406:55
LHR
-
ANC
2 stops24h 50m
Multiple Airlines
Deal found 11/2£655
Mon 6/415:40
ANC
-
LHR
1 stop14h 55m
Scandinavian Airlines
Tue 21/411:45
LHR
-
ANC
2 stops17h 52m
Scandinavian Airlines
Deal found 9/2£656
Wed 1/406:15
ANC
-
LHR
1 stop24h 20m
KLM
Tue 14/406:30
LHR
-
ANC
2 stops21h 16m
KLM
Deal found 9/2£657
Sun 12/415:40
ANC
-
LHR
1 stop14h 55m
Delta
Tue 21/406:30
LHR
-
ANC
2 stops23h 07m
Delta
Deal found 11/2£657
Mon 20/406:00
ANC
-
LHR
1 stop24h 35m
KLM
Wed 29/409:55
LHR
-
ANC
2 stops19h 42m
KLM
Deal found 13/2£658
Mon 6/421:04
ANC
-
LHR
2 stops27h 56m
United Airlines
Thu 16/407:25
LHR
-
ANC
2 stops24h 20m
United Airlines
Deal found 9/2£659
Mon 11/513:22
ANC
-
LHR
2 stops21h 58m
Icelandair
Thu 21/521:25
LHR
-
ANC
2 stops34h 11m
Icelandair
Deal found 9/2£664
Mon 12/1001:30
FAI
-
LHR
3 stops29h 30m
Multiple Airlines
Tue 27/1010:20
LHR
-
FAI
3 stops45h 55m
Multiple Airlines
Deal found 13/2£668

Find flight deals from Alaska to Heathrow

Keep the following information in mind while searching for Alaska to Heathrow flight deals. Data was last updated 13 February 2026.

Round-trip from

£632

One-way from

£351

Popular in

December

Cheapest in

April

Average price

£834
Icelandair
  • Icelandair
  • 20/4-29/4
  • 4 total stops
  • 44h 37m total
  • Alaska to London
Search Deals
Icelandair
  • Icelandair
  • 29/4
  • 2 total stops
  • 21h 58m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 13 February 2026.
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

Sun 12/4

15:40-15:35

1 stop14h 55m

London Heathrow

Tue 21/4

06:30-20:37

2 stops23h 07m

£657

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 20/4

06:00-15:35

1 stop24h 35m

London Heathrow

Wed 29/4

09:55-20:37

2 stops19h 42m

£658

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 11/5

13:22-20:20

2 stops21h 58m

London Heathrow

Thu 21/5

21:25-22:36

2 stops34h 11m

£664

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 14/4

21:04-06:45

1 stop24h 41m

London Heathrow

Mon 27/4

10:50-22:45

2 stops44h 55m

£666

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 11/5

23:59-06:45

1 stop21h 46m

London Heathrow

Thu 21/5

13:40-19:48

2 stops39h 08m

£676

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 6/4

15:40-15:35

1 stop14h 55m

London Heathrow

Tue 21/4

11:40-20:37

1 stop17h 57m

£677

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 4/5

06:00-15:35

1 stop24h 35m

London Heathrow

Wed 13/5

12:25-00:33

1 stop21h 08m

£679

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 11/5

11:30-15:35

1 stop19h 05m

London Heathrow

Thu 21/5

17:45-01:35

1 stop16h 50m

£686

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 28/4

15:45-15:35

1 stop14h 50m

London Heathrow

Mon 11/5

06:30-18:48

2 stops21h 18m

£693

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 4/5

06:00-15:35

1 stop24h 35m

London Heathrow

Mon 11/5

08:40-18:48

2 stops19h 08m

£693

Flights are sorted by cheapest return flights first.

Deals found on 11/2

Showing 1-10 of 35 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 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 Alaska to London Heathrow Airport

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

Currently, August is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £508). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £921). 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.

How much does it cost for a return flight 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?

    KLM, Icelandair, and United Airlines can get you from Alaska to London Heathrow Airport in just under 21h 46m. Your travel time can differ by up to 2h 49m. Airlines will cover a distance of 4471 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    While some choose either Fairbanks - London Heathrow or Juneau Intl - London Heathrow, Anchorage - London Heathrow is the most popular route from Alaska to London Heathrow Airport.

  • 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 holiday 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, August is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £508). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £921). 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
Luton
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames
Ipswich
Swindon

Browse thousands of different options on Cheapflights for your next trip

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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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Fly with Cheapflights

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How does Cheapflights help users find flights from Alaska to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Alaska to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Alaska to Heathrow.

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

Certainly. Search results for flights to Heathrow from Alaska shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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