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Cheap flights from Alaska to London Heathrow Airport from £249

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
15 Jul — 22 Jul1
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 15 June 2026.

Mon 17/814:40
ANC
-
LHR
2 stops30h 50m
Multiple Airlines
Thu 27/806:55
LHR
-
ANC
2 stops26h 04m
Multiple Airlines
Deal found 13/6£699
Mon 3/808:15
ANC
-
LHR
1 stop22h 20m
Delta
Wed 19/808:40
LHR
-
ANC
2 stops21h 20m
Delta
Deal found 13/6£700
Sun 1/1106:00
ANC
-
LHR
2 stops25h 35m
Multiple Airlines
Sun 8/1108:40
LHR
-
ANC
2 stops21h 23m
Multiple Airlines
Deal found 13/6£701
Wed 16/908:00
ANC
-
LHR
1 stop19h 10m
Delta
Sun 27/906:15
LHR
-
ANC
2 stops28h 20m
Delta
Deal found 11/6£702
Wed 2/906:00
ANC
-
LHR
2 stops22h 15m
Delta
Wed 9/908:40
LHR
-
ANC
2 stops21h 20m
Delta
Deal found 15/6£704
Sun 1/1108:00
ANC
-
LHR
1 stop19h 20m
Alaska Airlines
Sun 8/1114:45
LHR
-
ANC
1 stop19h 07m
Alaska Airlines
Deal found 13/6£705
Mon 17/807:00
ANC
-
LHR
1 stop20h 50m
British Airways
Thu 27/809:45
LHR
-
ANC
1 stop20h 06m
British Airways
Deal found 13/6£716
Mon 3/808:15
ANC
-
LHR
1 stop22h 20m
KLM
Wed 19/811:40
LHR
-
ANC
1 stop21h 15m
KLM
Deal found 13/6£718
Tue 1/908:15
ANC
-
LHR
1 stop22h 20m
Delta
Sat 5/911:45
LHR
-
ANC
2 stops21h 13m
Delta
Deal found 15/6£737
Sun 2/814:37
FAI
-
LHR
1 stop15h 58m
Delta
Mon 17/811:30
LHR
-
FAI
2 stops22h 04m
Delta
Deal found 13/6£793
Sun 2/820:45
FAI
-
LHR
1 stop25h 00m
United Airlines
Mon 17/811:25
LHR
-
FAI
1 stop20h 34m
United Airlines
Deal found 13/6£809
Sun 8/1111:22
SIT
-
LHR
2 stops15h 58m
Alaska Airlines
Thu 12/1114:45
LHR
-
SIT
2 stops36h 50m
Alaska Airlines
Deal found 14/6£827

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 15 June 2026.

Round-trip from

£699

One-way from

£249

Popular in

June

Cheapest in

August

Average price

£1,100
Lufthansa
  • Lufthansa
  • 17/8-27/8
  • 4 total stops
  • 56h 54m total
  • Alaska to London
Search Deals
British Airways
  • British Airways
  • 1/11
  • 1 total stop
  • 26h 54m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£94 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 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 15 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

Wed 11/11

07:00-12:20

1 stop20h 20m

London Heathrow

Sun 15/11

14:45-21:50

1 stop16h 05m

£705

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 2/9

08:15-15:35

1 stop22h 20m

London Heathrow

Wed 9/9

11:40-00:28

1 stop21h 48m

£721

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 19/8

08:15-12:10

1 stop18h 55m

London Heathrow

Sat 19/9

11:45-00:01

2 stops21h 16m

£737

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 1/9

08:15-12:10

1 stop18h 55m

London Heathrow

Sat 5/9

08:40-21:20

2 stops21h 40m

£737
Fastest return journey

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Fri 18/9

14:35-15:05

1 stop15h 30m

London Heathrow

Sun 27/9

17:00-01:45

1 stop17h 45m

£742

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 1/9

06:15-16:25

3 stops25h 10m

London Heathrow

Sat 5/9

06:40-23:58

3 stops26h 18m

£759

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 20/8

08:15-15:35

1 stop22h 20m

London Heathrow

Sun 30/8

06:30-19:00

2 stops21h 30m

£774

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Sun 2/8

14:37-15:35

1 stop15h 58m

London Heathrow

Mon 17/8

11:30-00:34

2 stops22h 04m

£793

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Sun 2/8

20:45-06:45

1 stop25h 00m

London Heathrow

Mon 17/8

11:25-22:59

1 stop20h 34m

£809

SitkaLondon

SIT - LHR

SITLHR

Sitka

Sun 8/11

11:22-12:20

2 stops15h 58m

London Heathrow

Thu 12/11

14:45-18:35

2 stops36h 50m

£827

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 24 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 £508). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £1,173). 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?

    Delta, Alaska Airlines, and United Airlines can get you from Alaska to London Heathrow Airport in just under 18h 55m. Your travel time can differ by up to 6h 05m. 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 £508). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £1,173). 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
Wembley
Luton
Gatwick
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Eastbourne
Watford
Swindon
Ipswich
Poole
Guildford
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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Los Angeles to London City flights
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Fly with Cheapflights

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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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