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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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
24 May — 31 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 24 April 2026.

Tue 29/907:05
ANC
-
LHR
1 stop23h 00m
Alaska Airlines
Wed 7/1017:00
LHR
-
ANC
1 stop16h 10m
Alaska Airlines
Deal found 22/4£666
Wed 19/807:00
ANC
-
LHR
1 stop22h 25m
Multiple Airlines
Tue 8/919:25
LHR
-
ANC
2 stops34h 04m
Multiple Airlines
Deal found 24/4£675
Mon 10/807:00
ANC
-
LHR
1 stop17h 00m
British Airways
Thu 20/810:05
LHR
-
ANC
1 stop21h 27m
British Airways
Deal found 22/4£676
Tue 13/1020:20
ANC
-
LHR
1 stop25h 00m
British Airways
Tue 20/1008:55
LHR
-
ANC
1 stop19h 13m
British Airways
Deal found 20/4£677
Sun 4/1014:20
ANC
-
LHR
1 stop15h 45m
Alaska Airlines
Thu 15/1017:00
LHR
-
ANC
1 stop30h 08m
Alaska Airlines
Deal found 24/4£679
Tue 1/921:55
ANC
-
LHR
1 stop26h 10m
Multiple Airlines
Tue 22/919:25
LHR
-
ANC
2 stops34h 04m
Multiple Airlines
Deal found 22/4£695
Tue 1/921:55
ANC
-
LHR
1 stop23h 55m
British Airways
Tue 22/912:15
LHR
-
ANC
1 stop17h 14m
British Airways
Deal found 22/4£696
Mon 10/816:00
ANC
-
LHR
2 stops20h 25m
United Airlines
Thu 20/806:55
LHR
-
ANC
2 stops26h 04m
United Airlines
Deal found 22/4£702
Tue 13/1011:30
ANC
-
LHR
1 stop19h 05m
KLM
Tue 20/1006:30
LHR
-
ANC
2 stops18h 48m
KLM
Deal found 20/4£704
Sun 4/1020:55
ANC
-
LHR
2 stops24h 40m
Multiple Airlines
Thu 15/1007:25
LHR
-
ANC
2 stops24h 14m
Multiple Airlines
Deal found 23/4£705
Sat 17/1020:55
ANC
-
LHR
1 stop24h 50m
United Airlines
Mon 2/1113:50
LHR
-
ANC
2 stops41h 49m
United Airlines
Deal found 23/4£707
Sun 1/1107:08
JNU
-
LHR
1 stop20h 12m
Alaska Airlines
Thu 5/1114:45
LHR
-
JNU
1 stop18h 43m
Alaska Airlines
Deal found 22/4£816

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 24 April 2026.

Round-trip from

£666

One-way from

£248

Popular in

June

Cheapest in

August

Average price

£689
Alaska Airlines
  • Alaska Airlines
  • 29/9-7/10
  • 2 total stops
  • 36h 30m total
  • Alaska to London
Search Deals
Air Canada
  • Air Canada
  • 13/9
  • 2 total stops
  • 21h 20m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£115 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 24 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

Wed 19/8

06:10-10:30

2 stops19h 20m

London Heathrow

Tue 8/9

06:30-20:59

2 stops23h 29m

£730

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 12/8

23:59-06:45

1 stop21h 46m

London Heathrow

Wed 19/8

14:50-23:59

1 stop18h 09m

£757

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 19/5

20:45-06:30

2 stops24h 45m

London Heathrow

Tue 26/5

09:00-23:59

2 stops23h 59m

£784

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 12/8

11:30-12:10

1 stop15h 40m

London Heathrow

Sat 22/8

11:30-22:22

2 stops19h 52m

£792

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sat 8/8

17:20-15:35

1 stop37h 15m

London Heathrow

Sun 23/8

18:30-01:35

1 stop16h 05m

£820

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Thu 13/8

01:30-15:35

1 stop29h 05m

London Heathrow

Fri 21/8

11:40-00:06

1 stop21h 26m

£824

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Fri 24/7

16:00-21:25

2 stops20h 25m

London Heathrow

Tue 11/8

15:30-23:59

2 stops41h 29m

£831

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Tue 12/5

20:55-06:45

1 stop24h 50m

London Heathrow

Tue 26/5

17:40-22:59

2 stops38h 19m

£870

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sat 8/8

17:20-15:35

1 stop37h 15m

London Heathrow

Mon 17/8

17:45-01:35

1 stop16h 50m

£873

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 22/7

12:44-13:05

1 stop15h 21m

London Heathrow

Sun 9/8

06:30-16:25

2 stops18h 55m

£876

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 33 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 £506). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £930). 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, United Airlines, and KLM can get you from Alaska to London Heathrow Airport in just under 19h 20m. Your travel time can differ by up to 9h 45m. 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 £506). Flying from Alaska to London Heathrow Airport in January is currently the most expensive (average of £930). 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
Hounslow
Northampton
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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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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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