Find flights
When to book
FAQs

Cheap flights from Alaska to London Heathrow Airport from £252

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
8 May — 15 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 8 April 2026.

Sun 20/906:05
ANC
-
LHR
1 stop24h 00m
Alaska Airlines
Wed 7/1017:00
LHR
-
ANC
1 stop18h 11m
Alaska Airlines
Deal found 7/4£675
Mon 28/920:55
ANC
-
LHR
2 stops24h 35m
Multiple Airlines
Wed 7/1020:25
LHR
-
ANC
2 stops35h 14m
Multiple Airlines
Deal found 6/4£677
Sat 19/920:00
ANC
-
LHR
2 stops27h 35m
Multiple Airlines
Fri 25/906:30
LHR
-
ANC
2 stops22h 15m
Multiple Airlines
Deal found 3/4£682
Sun 20/909:05
ANC
-
LHR
2 stops26h 15m
Icelandair
Wed 7/1013:05
LHR
-
ANC
2 stops22h 06m
Icelandair
Deal found 7/4£684
Mon 28/922:03
ANC
-
LHR
1 stop24h 37m
British Airways
Wed 7/1008:55
LHR
-
ANC
1 stop19h 13m
British Airways
Deal found 6/4£685
Sat 19/922:03
ANC
-
LHR
1 stop26h 02m
British Airways
Fri 25/909:45
LHR
-
ANC
1 stop19h 44m
British Airways
Deal found 3/4£686
Thu 10/914:40
ANC
-
LHR
1 stop13h 40m
Multiple Airlines
Wed 23/906:55
LHR
-
ANC
2 stops26h 04m
Multiple Airlines
Deal found 5/4£701
Mon 28/923:40
ANC
-
LHR
1 stop25h 00m
United Airlines
Wed 7/1006:55
LHR
-
ANC
2 stops21h 50m
United Airlines
Deal found 6/4£705
Thu 17/914:40
ANC
-
LHR
2 stops21h 20m
Multiple Airlines
Wed 30/906:30
LHR
-
ANC
2 stops22h 15m
Multiple Airlines
Deal found 5/4£710
Thu 1/1012:15
ANC
-
LHR
1 stop17h 50m
Alaska Airlines
Thu 22/1017:00
LHR
-
ANC
1 stop18h 11m
Alaska Airlines
Deal found 6/4£713
Sun 20/920:00
ANC
-
LHR
2 stops25h 35m
Multiple Airlines
Wed 7/1006:30
LHR
-
ANC
2 stops25h 09m
Multiple Airlines
Deal found 7/4£719
Sun 3/520:55
FAI
-
LHR
2 stops25h 00m
United Airlines
Tue 12/516:00
LHR
-
FAI
2 stops36h 42m
United Airlines
Deal found 4/4£723

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 8 April 2026.

Round-trip from

£675

One-way from

£252

Popular in

June

Cheapest in

August

Average price

£652
Alaska Airlines
  • Alaska Airlines
  • 20/9-7/10
  • 2 total stops
  • 42h 11m total
  • Alaska to London
Search Deals
Air Canada
  • Air Canada
  • 15/8
  • 2 total stops
  • 36h 10m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£126 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£25 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 8 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

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Sun 3/5

20:55-06:45

1 stop24h 50m

London Heathrow

Tue 12/5

16:40-19:42

2 stops36h 02m

£723

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 20/8

22:30-07:55

1 stop24h 25m

London Heathrow

Sun 30/8

07:25-19:48

2 stops21h 23m

£743

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 20/8

07:00-14:25

1 stop22h 25m

London Heathrow

Sun 30/8

12:15-20:50

1 stop17h 35m

£764

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 4/5

20:45-06:45

1 stop25h 00m

London Heathrow

Mon 11/5

07:30-20:06

2 stops21h 36m

£778

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 3/5

23:59-06:45

1 stop21h 46m

London Heathrow

Sun 10/5

16:25-20:06

2 stops36h 41m

£778

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Wed 5/8

01:20-09:40

1 stop23h 20m

London Heathrow

Sat 22/8

06:50-19:16

2 stops21h 26m

£781

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 5/5

06:00-15:35

1 stop24h 35m

London Heathrow

Tue 12/5

17:45-22:15

1 stop37h 30m

£795

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Mon 18/5

20:55-10:00

2 stops28h 05m

London Heathrow

Mon 25/5

17:50-19:48

2 stops34h 58m

£806

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sat 2/5

06:00-15:35

1 stop24h 35m

London Heathrow

Sat 9/5

06:15-16:23

2 stops19h 08m

£834

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Mon 18/5

01:40-12:10

1 stop25h 30m

London Heathrow

Tue 26/5

11:45-00:35

2 stops21h 50m

£854

Flights are sorted by cheapest return flights first.

Deals found on 6/4

Showing 1-10 of 37 resultsSorted by cheapest first
1
2
3
4

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 £522). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £946). 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, British Airways, and KLM can get you from Alaska to London Heathrow Airport in just under 22h 25m. Your travel time can differ by up to 2h 25m. 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 Virgin Atlantic, with whom users have recently found tickets for as low as £343. However, be on the lookout for offers from Air Canada 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 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 £522). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £946). 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
Gatwick
Luton
Ilford
Slough
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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Alaska to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to Stansted flights
LaGuardia to Heathrow flights
Newark to Gatwick flights
John F Kennedy Intl to London City flights
LaGuardia to Gatwick flights
Boston to Heathrow flights
Dulles Intl to Heathrow flights
Newark to Stansted flights
Los Angeles to Heathrow flights
Newark to Luton flights
O'Hare Intl to Heathrow flights
Newark to London City flights
Baltimore to Heathrow flights
San Francisco to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Boston to Gatwick flights
Seattle to Heathrow flights
LaGuardia to Stansted flights
Los Angeles to Gatwick flights
Atlanta to Heathrow flights
Orlando to Heathrow flights
Boston to London City flights
Reagan-National to Heathrow flights
Hobby to Heathrow flights
Dulles Intl to Gatwick flights
Miami to Heathrow flights
Dulles Intl to London City flights
Boston to Stansted flights
Denver to Heathrow flights
Los Angeles to Stansted flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
Reagan-National to Gatwick flights
O'Hare Intl to Gatwick flights
Philadelphia to Heathrow flights
O'Hare Intl to Stansted flights
Orlando to Gatwick flights
San Francisco to Gatwick flights
Los Angeles to London City flights
O'Hare Intl to London City flights
Minneapolis to Heathrow flights
Tampa to Heathrow flights
San Francisco to Stansted flights
Austin to Heathrow flights
San Francisco to London City 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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.