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Cheap flights from Alaska to London Heathrow Airport from £243

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
1 Jun — 8 Jun1
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 2 May 2026.

Sun 4/1014:20
ANC
-
LHR
1 stop15h 45m
Alaska Airlines
Thu 15/1017:00
LHR
-
ANC
1 stop16h 10m
Alaska Airlines
Deal found 27/4£661
Tue 18/821:55
ANC
-
LHR
1 stop26h 10m
British Airways
Wed 9/912:15
LHR
-
ANC
1 stop17h 14m
British Airways
Deal found 30/4£670
Tue 13/1020:55
ANC
-
LHR
2 stops26h 40m
Multiple Airlines
Thu 22/1007:25
LHR
-
ANC
2 stops24h 14m
Multiple Airlines
Deal found 1/5£692
Tue 28/701:20
FAI
-
LHR
1 stop23h 20m
United Airlines
Wed 26/806:50
LHR
-
FAI
2 stops21h 26m
United Airlines
Deal found 30/4£694
Tue 13/1020:55
ANC
-
LHR
2 stops28h 05m
United Airlines
Thu 22/1006:55
LHR
-
ANC
2 stops21h 50m
United Airlines
Deal found 1/5£695
Thu 15/1014:20
ANC
-
LHR
1 stop15h 45m
Alaska Airlines
Thu 12/1114:45
LHR
-
ANC
1 stop15h 54m
Alaska Airlines
Deal found 30/4£698
Sun 4/1020:55
ANC
-
LHR
2 stops24h 40m
Multiple Airlines
Thu 15/1006:55
LHR
-
ANC
2 stops24h 44m
Multiple Airlines
Deal found 28/4£699
Tue 20/1020:55
ANC
-
LHR
2 stops24h 35m
Multiple Airlines
Mon 26/1019:15
LHR
-
ANC
2 stops35h 24m
Multiple Airlines
Deal found 29/4£704
Tue 18/820:00
ANC
-
LHR
2 stops28h 35m
Multiple Airlines
Wed 9/920:25
LHR
-
ANC
2 stops32h 23m
Multiple Airlines
Deal found 30/4£706
Tue 25/814:40
FAI
-
LHR
1 stop15h 55m
Delta
Tue 29/911:40
LHR
-
FAI
1 stop21h 26m
Delta
Deal found 2/5£720
Mon 24/801:39
FAI
-
LHR
2 stops22h 11m
Multiple Airlines
Tue 29/911:40
LHR
-
FAI
1 stop21h 26m
Multiple Airlines
Deal found 2/5£723
Tue 5/514:32
JNU
-
LHR
2 stops20h 48m
Multiple Airlines
Tue 12/521:25
LHR
-
JNU
2 stops44h 14m
Multiple Airlines
Deal found 28/4£791

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 2 May 2026.

Round-trip from

£656

One-way from

£243

Popular in

June

Cheapest in

October

Average price

£891
Scandinavian Airlines
  • Scandinavian Airlines
  • 5/9-24/9
  • 4 total stops
  • 67h 02m total
  • Alaska to London
Search Deals
Finnair
  • Finnair
  • 11/8
  • 1 total stop
  • 17h 00m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£108 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 2 May 2026.
Use the filters below to find and compare flights from Alaska to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 4/10

14:20-15:05

1 stop15h 45m

London Heathrow

Thu 15/10

17:00-00:10

1 stop16h 10m

£661

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 13/10

12:40-15:05

1 stop17h 25m

London Heathrow

Thu 22/10

17:00-00:10

1 stop16h 10m

£662

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Tue 28/7

01:20-08:20

2 stops22h 00m

London Heathrow

Wed 26/8

06:50-19:16

2 stops21h 26m

£697

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Mon 24/8

01:39-06:45

2 stops20h 06m

London Heathrow

Tue 29/9

11:20-00:06

2 stops21h 46m

£723

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Mon 24/8

01:39-08:50

2 stops22h 11m

London Heathrow

Tue 29/9

11:40-00:06

1 stop21h 26m

£723

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 20/8

23:59-09:35

2 stops24h 36m

London Heathrow

Sun 30/8

07:25-19:48

2 stops21h 23m

£773

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Mon 6/7

01:20-10:25

2 stops24h 05m

London Heathrow

Tue 21/7

07:45-22:59

2 stops24h 14m

£830

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Fri 24/7

11:30-15:35

1 stop19h 05m

London Heathrow

Fri 31/7

12:25-21:00

1 stop17h 35m

£846

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 23/7

01:30-06:25

2 stops19h 55m

London Heathrow

Fri 31/7

12:25-21:00

1 stop17h 35m

£850

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 1/6

20:05-06:25

1 stop25h 20m

London Heathrow

Tue 30/6

17:45-23:56

1 stop15h 11m

£855

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 36 resultsSorted by cheapest first
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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 £502). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £923). 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?

    Alaska Airlines, United Airlines, and Air France can get you from Alaska to London Heathrow Airport in just under 15h 45m. Your travel time can differ by up to 6h 15m. 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 £502). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £923). 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
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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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O'Hare Intl to Stansted flights
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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 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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