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Cheap flights from Alaska to London Heathrow Airport from £248

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 21/7. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
19 May — 26 May1
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 19 April 2026.

Sun 4/1023:40
ANC
-
LHR
1 stop25h 00m
United Airlines
Wed 14/1007:25
LHR
-
ANC
2 stops21h 20m
United Airlines
Deal found 15/4£657
Tue 13/1020:55
ANC
-
LHR
2 stops26h 40m
United Airlines
Tue 20/1007:25
LHR
-
ANC
2 stops24h 14m
United Airlines
Deal found 18/4£657
Sat 17/1023:40
ANC
-
LHR
1 stop25h 00m
United Airlines
Mon 2/1111:10
LHR
-
ANC
2 stops44h 29m
United Airlines
Deal found 17/4£666
Sun 18/1020:55
ANC
-
LHR
2 stops28h 05m
United Airlines
Tue 27/1009:30
LHR
-
ANC
2 stops21h 09m
United Airlines
Deal found 18/4£668
Fri 21/814:40
ANC
-
LHR
2 stops60h 10m
Air Canada
Fri 28/809:30
LHR
-
ANC
2 stops37h 08m
Air Canada
Deal found 15/4£669
Sun 4/1022:03
ANC
-
LHR
1 stop24h 37m
British Airways
Wed 14/1008:55
LHR
-
ANC
1 stop19h 13m
British Airways
Deal found 15/4£674
Sat 17/1002:27
ANC
-
LHR
1 stop19h 18m
Multiple Airlines
Wed 28/1016:55
LHR
-
ANC
1 stop27h 31m
Multiple Airlines
Deal found 15/4£677
Tue 13/1012:04
ANC
-
LHR
1 stop15h 56m
Multiple Airlines
Tue 20/1009:50
LHR
-
ANC
1 stop18h 20m
Multiple Airlines
Deal found 18/4£679
Thu 3/914:40
ANC
-
LHR
2 stops30h 50m
Multiple Airlines
Tue 15/906:55
LHR
-
ANC
2 stops26h 04m
Multiple Airlines
Deal found 16/4£694
Tue 7/701:20
FAI
-
LHR
1 stop23h 20m
United Airlines
Thu 27/806:50
LHR
-
FAI
2 stops21h 26m
United Airlines
Deal found 19/4£739
Thu 8/1001:30
FAI
-
LHR
1 stop25h 40m
Delta
Sun 18/1006:30
LHR
-
FAI
2 stops26h 45m
Delta
Deal found 17/4£777
Mon 19/1012:22
JNU
-
LHR
2 stops22h 58m
Multiple Airlines
Thu 29/1012:15
LHR
-
JNU
2 stops20h 13m
Multiple Airlines
Deal found 17/4£781

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 19 April 2026.

Round-trip from

£657

One-way from

£248

Popular in

June

Cheapest in

August

Average price

£687
United Airlines
  • United Airlines
  • 4/10-14/10
  • 3 total stops
  • 46h 20m total
  • Alaska to London
Search Deals
United Airlines
  • United Airlines
  • 21/7
  • 1 total stop
  • 23h 20m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£114 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 April 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 19 April 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

23:40-09:40

1 stop25h 00m

London Heathrow

Wed 14/10

07:25-19:45

2 stops21h 20m

£657

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 20/8

22:30-11:35

1 stop28h 05m

London Heathrow

Sun 30/8

10:50-23:59

2 stops22h 09m

£731

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 20/8

14:40-11:50

2 stops36h 10m

London Heathrow

Sun 30/8

20:25-19:14

2 stops31h 49m

£736

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Tue 7/7

01:20-09:40

1 stop23h 20m

London Heathrow

Thu 27/8

06:50-19:16

2 stops21h 26m

£739

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Thu 8/10

01:30-12:10

1 stop25h 40m

London Heathrow

Sun 18/10

06:30-00:15

2 stops26h 45m

£777

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Fri 1/5

23:59-06:30

2 stops45h 31m

London Heathrow

Mon 18/5

06:55-22:45

2 stops24h 50m

£851

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Fri 24/7

16:00-09:40

1 stop32h 40m

London Heathrow

Fri 31/7

09:30-19:12

1 stop18h 42m

£859

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 23/7

01:45-06:20

2 stops19h 35m

London Heathrow

Fri 31/7

11:40-01:55

1 stop23h 15m

£883

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 2/6

06:00-18:50

3 stops27h 50m

London Heathrow

Tue 9/6

06:40-20:07

2 stops22h 27m

£891

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Tue 2/6

01:20-09:40

1 stop23h 20m

London Heathrow

Wed 10/6

17:40-22:59

2 stops38h 19m

£893

Flights are sorted by cheapest return flights first.

Deals found on 19/4

Showing 1-10 of 38 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 £505). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £928). 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, Delta, and KLM can get you from Alaska to London Heathrow Airport in just under 23h 15m. Your travel time can differ by up to 2h 25m. Airlines will cover a distance of 4418 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 Juneau Intl - London Heathrow or Fairbanks - 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 £505). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £928). 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
Slough
Ilford
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Chelmsford
Ipswich
Southend-on-Sea

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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Dulles Intl to London City flights
Los Angeles to Gatwick flights
LaGuardia to Stansted flights
San Francisco to Gatwick flights
Philadelphia to Heathrow flights
Reagan-National to Gatwick flights
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George Bush Intcntl to Heathrow flights
Baltimore to Gatwick flights
Minneapolis to Heathrow flights
San Francisco to Stansted flights
San Francisco to London City flights
Newark to London City flights
Los Angeles to Luton 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.

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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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