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Cheap flights from Alaska to London Heathrow Airport from £317

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
5 Mar — 12 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 3 February 2026.

Wed 18/306:15
ANC
-
LHR
1 stop20h 15m
KLM
Wed 25/312:20
LHR
-
ANC
1 stop20h 09m
KLM
Deal found 1/2£643
Wed 18/321:10
ANC
-
LHR
2 stops26h 00m
Multiple Airlines
Wed 25/306:30
LHR
-
ANC
2 stops21h 31m
Multiple Airlines
Deal found 1/2£644
Wed 22/412:20
ANC
-
LHR
2 stops23h 00m
Icelandair
Wed 29/413:05
LHR
-
ANC
2 stops18h 38m
Icelandair
Deal found 1/2£649
Wed 22/412:20
ANC
-
LHR
2 stops23h 00m
Icelandair
Tue 28/421:25
LHR
-
ANC
2 stops34h 18m
Icelandair
Deal found 1/2£650
Wed 18/306:15
ANC
-
LHR
2 stops20h 40m
Virgin Atlantic
Wed 25/312:20
LHR
-
ANC
1 stop16h 15m
Virgin Atlantic
Deal found 1/2£651
Wed 22/406:00
ANC
-
LHR
1 stop21h 10m
Delta
Tue 28/406:30
LHR
-
ANC
2 stops23h 07m
Delta
Deal found 1/2£657
Mon 13/409:21
ANC
-
LHR
2 stops25h 59m
Icelandair
Mon 27/421:25
LHR
-
ANC
2 stops58h 18m
Icelandair
Deal found 31/1£660
Sun 5/421:04
ANC
-
LHR
1 stop26h 26m
United Airlines
Mon 13/409:00
LHR
-
ANC
2 stops43h 55m
United Airlines
Deal found 3/2£663
Mon 2/305:45
ANC
-
LHR
1 stop19h 45m
Delta
Tue 17/312:20
LHR
-
ANC
1 stop20h 09m
Delta
Deal found 2/2£666
Sun 15/1101:30
FAI
-
LHR
1 stop24h 00m
KLM
Wed 2/1220:25
LHR
-
FAI
2 stops36h 50m
KLM
Deal found 2/2£680
Sun 15/1101:30
FAI
-
LHR
2 stops21h 35m
Multiple Airlines
Wed 2/1220:25
LHR
-
FAI
2 stops36h 50m
Multiple Airlines
Deal found 2/2£683
Mon 14/914:40
FAI
-
LHR
1 stop15h 55m
Delta
Wed 30/911:40
LHR
-
FAI
1 stop21h 26m
Delta
Deal found 2/2£701

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 3 February 2026.

Round-trip from

£643

One-way from

£317

Popular in

January

Cheapest in

April

Average price

£725
KLM
  • KLM
  • 18/3-25/3
  • 2 total stops
  • 40h 24m total
  • Alaska to London
Search Deals
3/5
  • 3/5
  • 2 total stops
  • 19h 45m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£97 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£23 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 3 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

Mon 6/4

21:04-06:45

1 stop24h 41m

London Heathrow

Tue 21/4

07:25-19:55

2 stops21h 30m

£655

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 22/4

06:00-15:35

1 stop24h 35m

London Heathrow

Wed 29/4

06:30-18:46

2 stops21h 16m

£657

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 22/4

06:00-12:10

1 stop21h 10m

London Heathrow

Tue 28/4

06:30-20:37

2 stops23h 07m

£657

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 4/3

01:20-10:30

1 stop24h 10m

London Heathrow

Thu 12/3

12:20-00:28

1 stop20h 08m

£665

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 2/3

05:45-10:30

1 stop19h 45m

London Heathrow

Tue 17/3

12:20-00:29

1 stop20h 09m

£666

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 4/3

01:20-06:50

2 stops20h 30m

London Heathrow

Thu 12/3

12:20-00:28

1 stop20h 08m

£668

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sat 2/5

21:00-06:30

2 stops24h 30m

London Heathrow

Tue 12/5

14:05-13:36

2 stops32h 31m

£675

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 6/4

06:15-15:35

1 stop24h 20m

London Heathrow

Tue 21/4

17:45-00:25

1 stop15h 40m

£677

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Thu 2/4

01:30-12:10

1 stop25h 40m

London Heathrow

Thu 16/4

09:55-00:40

2 stops23h 45m

£708

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Tue 3/3

01:27-10:30

1 stop24h 03m

London Heathrow

Wed 11/3

06:30-00:11

2 stops25h 41m

£775

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 34 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 £506). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £864). 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?

    United Airlines, KLM, and Delta can get you from Alaska to London Heathrow Airport in just under 21h 10m. Your travel time can differ by up to 3h 31m. 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 £506). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £864). 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
Northampton
Wembley
Gatwick
Slough
Ilford
Hounslow
Brentford
Hayes
Colchester
Watford
Guildford
Swindon
Bedford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames

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.

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

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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