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Cheap flights from Alaska to London Heathrow Airport from £254

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 19/10. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
24 Aug — 31 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 25 July 2026.

Sun 23/821:20
ANC
-
LHR
2 stops51h 15m
Air Canada
Thu 27/808:45
LHR
-
ANC
2 stops37h 53m
Air Canada
Deal found 22/7£649
Wed 26/808:15
ANC
-
LHR
2 stops17h 30m
Delta
Fri 28/810:45
LHR
-
ANC
1 stop19h 35m
Delta
Deal found 24/7£660
Tue 3/1106:15
ANC
-
LHR
1 stop19h 15m
KLM
Tue 10/1106:30
LHR
-
ANC
2 stops18h 48m
KLM
Deal found 24/7£665
Sat 14/1120:14
ANC
-
LHR
1 stop25h 36m
British Airways
Mon 23/1115:00
LHR
-
ANC
2 stops37h 17m
British Airways
Deal found 22/7£669
Wed 9/1206:00
ANC
-
LHR
1 stop19h 30m
Multiple Airlines
Wed 16/1208:55
LHR
-
ANC
2 stops22h 41m
Multiple Airlines
Deal found 25/7£670
Tue 8/1202:27
ANC
-
LHR
1 stop24h 53m
Alaska Airlines
Wed 16/1214:45
LHR
-
ANC
1 stop20h 26m
Alaska Airlines
Deal found 25/7£673
Sat 14/1120:44
ANC
-
LHR
2 stops25h 26m
Multiple Airlines
Mon 23/1120:15
LHR
-
ANC
2 stops35h 24m
Multiple Airlines
Deal found 22/7£676
Tue 22/906:00
ANC
-
LHR
1 stop22h 05m
KLM
Wed 7/1011:45
LHR
-
ANC
2 stops21h 48m
KLM
Deal found 23/7£678
Tue 22/920:00
ANC
-
LHR
2 stops29h 00m
United Airlines
Wed 7/1006:55
LHR
-
ANC
2 stops22h 02m
United Airlines
Deal found 23/7£681
Tue 22/914:28
ANC
-
LHR
2 stops20h 42m
Delta
Wed 7/1006:30
LHR
-
ANC
2 stops22h 56m
Delta
Deal found 23/7£681
Mon 21/906:00
ANC
-
LHR
2 stops19h 30m
Delta
Wed 30/906:30
LHR
-
ANC
2 stops23h 30m
Delta
Deal found 21/7£682
Sun 18/1001:47
FAI
-
LHR
2 stops23h 58m
KLM
Wed 4/1106:30
LHR
-
FAI
2 stops27h 17m
KLM
Deal found 22/7£686

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 25 July 2026.

Round-trip from

£649

One-way from

£254

Popular in

June

Cheapest in

January

Average price

£948
Air Canada
  • Air Canada
  • 23/8-27/8
  • 4 total stops
  • 89h 08m total
  • Alaska to London
Search Deals
United Airlines
  • United Airlines
  • 24/10
  • 2 total stops
  • 30h 06m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£130 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 25 July 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

Mon 21/9

06:00-10:30

2 stops19h 30m

London Heathrow

Wed 30/9

06:30-21:00

2 stops23h 30m

£682

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Sun 18/10

01:47-15:35

1 stop28h 48m

London Heathrow

Wed 4/11

06:30-00:47

2 stops27h 17m

£693

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 25/11

11:30-10:30

1 stop14h 00m

London Heathrow

Mon 7/12

06:30-22:36

2 stops25h 06m

£702

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 11/11

06:00-10:30

1 stop19h 30m

London Heathrow

Mon 16/11

06:30-16:18

2 stops18h 48m

£704

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 11/11

06:00-11:40

2 stops20h 40m

London Heathrow

Mon 16/11

06:30-16:18

2 stops18h 48m

£707
Fastest return journey

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 11/11

13:08-12:20

1 stop14h 12m

London Heathrow

Mon 16/11

14:45-21:50

1 stop16h 05m

£712

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 7/9

20:00-10:00

2 stops29h 00m

London Heathrow

Mon 14/9

09:00-23:05

2 stops47h 05m

£716

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 1/10

11:51-15:35

1 stop18h 44m

London Heathrow

Thu 8/10

11:45-00:33

2 stops21h 48m

£716

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Sun 16/8

01:00-09:40

1 stop23h 40m

London Heathrow

Mon 24/8

17:50-19:16

2 stops34h 26m

£717

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 18/10

06:15-10:20

2 stops19h 05m

London Heathrow

Sun 1/11

06:30-21:55

2 stops23h 25m

£719

Flights are sorted by cheapest return flights first.

Deals found on 22/7

Showing 1-10 of 39 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, September is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £606). Flying from Alaska to London Heathrow Airport in December is currently the most expensive (average of £2,039). 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?

Airfare is below average for this route at the moment.
Alaska to London Heathrow Airport flights typically cost between £657 and £1,098 in August.
The cheapest return price found within the last 5 days was £649 on Air Canada (23 Aug–27 Aug).

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?

    Delta, KLM, and United Airlines can get you from Alaska to London Heathrow Airport in just under 19h 30m. Your travel time can differ by up to 9h 18m. 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 £317. 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, September is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £606). Flying from Alaska to London Heathrow Airport in December is currently the most expensive (average of £2,039). 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
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Swindon
Southend-on-Sea
Poole
Kingston upon Thames
Southall
Aylesbury

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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San Francisco to London City flights
San Francisco to Stansted flights
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Los Angeles to Stansted flights
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O'Hare Intl to Gatwick flights
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Los Angeles to London City 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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