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Cheap flights from Alaska to London Heathrow Airport from £256

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
29 Jul — 5 Aug1
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 29 June 2026.

Tue 18/806:00
ANC
-
LHR
1 stop24h 05m
Alaska Airlines
Wed 26/817:00
LHR
-
ANC
1 stop16h 47m
Alaska Airlines
Deal found 26/6£539
Thu 5/1120:44
ANC
-
LHR
2 stops26h 46m
Multiple Airlines
Sun 8/1107:40
LHR
-
ANC
2 stops23h 59m
Multiple Airlines
Deal found 27/6£655
Thu 5/1123:59
ANC
-
LHR
1 stop24h 41m
United Airlines
Sun 8/1107:30
LHR
-
ANC
2 stops24h 09m
United Airlines
Deal found 27/6£656
Mon 5/1011:51
ANC
-
LHR
1 stop18h 44m
KLM
Thu 15/1011:45
LHR
-
ANC
2 stops21h 48m
KLM
Deal found 28/6£667
Mon 19/1020:59
ANC
-
LHR
2 stops24h 31m
Multiple Airlines
Wed 28/1007:40
LHR
-
ANC
2 stops22h 59m
Multiple Airlines
Deal found 29/6£670
Tue 13/1006:15
ANC
-
LHR
2 stops22h 00m
Delta
Tue 27/1006:30
LHR
-
ANC
2 stops22h 25m
Delta
Deal found 28/6£671
Mon 5/1014:37
ANC
-
LHR
1 stop15h 28m
Alaska Airlines
Thu 15/1017:00
LHR
-
ANC
1 stop17h 39m
Alaska Airlines
Deal found 28/6£676
Sun 1/1106:15
ANC
-
LHR
2 stops25h 20m
Air France
Fri 6/1108:55
LHR
-
ANC
2 stops20h 31m
Air France
Deal found 28/6£676
Thu 3/920:15
ANC
-
LHR
2 stops27h 05m
United Airlines
Sun 6/907:25
LHR
-
ANC
2 stops21h 34m
United Airlines
Deal found 27/6£693
Tue 13/1020:59
ANC
-
LHR
3 stops24h 31m
Multiple Airlines
Tue 27/1018:00
LHR
-
ANC
2 stops33h 15m
Multiple Airlines
Deal found 28/6£695
Sun 13/908:00
ANC
-
LHR
2 stops23h 00m
Scandinavian Airlines
Sat 26/910:20
LHR
-
ANC
2 stops42h 55m
Scandinavian Airlines
Deal found 26/6£696
Tue 28/701:00
FAI
-
LHR
1 stop23h 40m
United Airlines
Wed 26/817:50
LHR
-
FAI
2 stops34h 26m
United Airlines
Deal found 28/6£719

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 29 June 2026.

Round-trip from

£539

One-way from

£256

Popular in

June

Cheapest in

January

Average price

£1,116
Alaska Airlines
  • Alaska Airlines
  • 18/8-26/8
  • 2 total stops
  • 40h 52m total
  • Alaska to London
Search Deals
Delta
  • Delta
  • 13/10
  • 2 total stops
  • 19h 50m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£132 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 June 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 29 June 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

Sat 3/10

20:05-06:25

1 stop25h 20m

London Heathrow

Sun 18/10

06:30-20:26

2 stops22h 56m

£705

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 18/8

22:19-11:35

1 stop28h 16m

London Heathrow

Wed 26/8

10:50-23:59

2 stops22h 09m

£709

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 18/10

11:30-12:10

1 stop15h 40m

London Heathrow

Sun 1/11

08:55-02:45

2 stops25h 50m

£710

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 18/10

10:20-15:05

1 stop19h 45m

London Heathrow

Sun 1/11

14:45-01:47

1 stop20h 02m

£713

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 18/10

23:45-09:40

1 stop24h 55m

London Heathrow

Sun 1/11

07:30-23:39

2 stops24h 09m

£713

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Tue 28/7

01:00-10:00

2 stops24h 00m

London Heathrow

Wed 26/8

17:50-19:16

2 stops34h 26m

£722

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 18/8

08:00-15:05

1 stop22h 05m

London Heathrow

Wed 26/8

17:00-19:05

2 stops35h 05m

£734

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 13/9

08:00-18:50

3 stops25h 50m

London Heathrow

Sat 26/9

06:40-20:15

2 stops22h 35m

£740

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Thu 20/8

20:27-06:45

1 stop25h 18m

London Heathrow

Wed 2/9

06:50-19:16

2 stops21h 26m

£748

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Thu 13/8

20:27-06:30

2 stops25h 03m

London Heathrow

Thu 20/8

17:40-22:59

2 stops38h 19m

£769

Flights are sorted by cheapest return flights first.

Deals found on 27/6

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 £516). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £1,190). 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.

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, United Airlines, and Delta can get you from Alaska to London Heathrow Airport in just under 15h 40m. Your travel time can differ by up to 12h 36m. 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 cheapest airlines to fly from Alaska to London Heathrow Airport one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as £319. However, be on the lookout for offers from Virgin Atlantic and British Airways, as they are both options that can get you from Alaska to London Heathrow Airport for a low price.

  • 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 £516). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £1,190). 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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Northampton
Watford
Kingston upon Thames
Swindon
Eastbourne
Poole
Southall
Aylesbury
Romford

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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Boston to Gatwick flights
Atlanta to Heathrow flights
Orlando to Heathrow flights
Newark to London City flights
Hobby to Heathrow flights
LaGuardia to Stansted flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Miami to Heathrow flights
Denver to Heathrow flights
Boston to London City flights
Philadelphia to Heathrow flights
George Bush Intcntl to Heathrow flights
Dulles Intl to London City flights
Boston to Stansted flights
Los Angeles to Gatwick flights
Baltimore to Gatwick flights
San Francisco to Gatwick flights
O'Hare Intl to Gatwick flights
Los Angeles to Stansted flights
Minneapolis to Heathrow flights
Reagan-National to Gatwick flights
O'Hare Intl to Stansted flights
San Francisco to London City flights
San Francisco to Stansted flights
Orlando to Gatwick flights
Los Angeles to London City flights
Charlotte to Heathrow flights
Sky Harbor Intl to Heathrow flights
Dallas/Fort Worth to Gatwick flights

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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