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Cheap flights from Alaska to London Heathrow Airport from £251

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
9 Sep — 16 Sep1
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 10 August 2026.

Mon 21/906:00 -
2 stops16h 40m
Mon 28/920:55 -
2 stops28h 32m
Deal found 7/8£642
Sun 1/1120:54 -
2 stops25h 16m
Thu 12/1107:40 -
2 stops24h 16m
Deal found 6/8£652
Wed 21/1014:29 -
1 stop16h 06m
Wed 28/1020:25 -
2 stops32h 34m
Deal found 6/8£654
Tue 3/1106:30 -
1 stop19h 10m
Wed 18/1106:30 -
2 stops23h 26m
Deal found 5/8£657
Mon 2/1101:40 -
2 stops20h 10m
Fri 13/1108:40 -
2 stops21h 16m
Deal found 5/8£661
Tue 20/1011:29 -
1 stop19h 06m
Thu 29/1008:40 -
2 stops20h 19m
Deal found 6/8£664
Mon 21/906:00 -
2 stops16h 40m
Tue 6/1011:45 -
2 stops17h 56m
Deal found 9/8£665
Mon 2/1102:24 -
1 stop24h 56m
Wed 18/1114:45 -
1 stop16h 05m
Deal found 5/8£665
Mon 2/1120:14 -
1 stop27h 01m
Mon 16/1116:30 -
2 stops35h 39m
Deal found 5/8£667
Tue 20/1006:30 -
2 stops19h 00m
Tue 27/1006:30 -
2 stops22h 11m
Deal found 6/8£668
Wed 23/911:51 -
1 stop18h 44m
Wed 30/911:45 -
2 stops21h 42m
Deal found 7/8£670
Sun 1/1120:14 -
1 stop27h 01m
Thu 12/1108:20 -
1 stop19h 49m
Deal found 6/8£671

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 10 August 2026.

Round-trip from

£642

One-way from

£251

Popular in

June

Cheapest in

January

Average price

£679
KLM
  • KLM
  • 21/9-28/9
  • 4 total stops
  • 45h 12m total
  • Alaska to London
Search Deals
Delta
  • Delta
  • 2/2
  • 2 total stops
  • 25h 10m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£140 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 August 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 10 August 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 Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Tue 17/11

01:15-10:40

1 stop24h 25m

London Heathrow

Wed 25/11

06:30-20:56

2 stops23h 26m

£657

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Wed 4/11

11:29-10:40

1 stop14h 11m

London Heathrow

Tue 17/11

06:30-20:56

2 stops23h 26m

£657

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Wed 4/11

05:55-12:20

1 stop21h 25m

London Heathrow

Thu 19/11

14:45-21:50

1 stop16h 05m

£665
Fastest return journey

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Mon 9/11

12:04-12:20

1 stop15h 16m

London Heathrow

Wed 11/11

14:45-00:49

1 stop19h 04m

£665

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Tue 3/11

02:24-12:20

1 stop24h 56m

London Heathrow

Wed 18/11

14:45-21:50

1 stop16h 05m

£665

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Mon 9/11

20:54-05:55

1 stop24h 01m

London Heathrow

Wed 11/11

15:00-19:39

2 stops37h 39m

£676

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Wed 9/9

11:51-15:35

1 stop18h 44m

London Heathrow

Wed 16/9

06:30-17:14

2 stops19h 44m

£694

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Wed 9/9

11:51-15:35

1 stop18h 44m

London Heathrow

Wed 16/9

09:55-21:00

2 stops20h 05m

£697

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Sun 18/10

16:05-15:35

1 stop14h 30m

London Heathrow

Sun 1/11

06:30-21:59

2 stops23h 29m

£707

FairbanksLondon

FAI Fairbanks - LHR London Heathrow

FAILHR

Fairbanks

Sun 20/9

14:30-15:35

1 stop16h 05m

London Heathrow

Sun 27/9

08:40-00:30

2 stops24h 50m

£735

Flights are sorted by cheapest return flights first.

Deals found on 9/8

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, October is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £664). Flying from Alaska to London Heathrow Airport in December is currently the most expensive (average of £2,013). 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, Delta, and Alaska Airlines can get you from Alaska to London Heathrow Airport in just under 14h 11m. Your travel time can differ by up to 10h 14m. 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 £313. 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 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, October is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £664). Flying from Alaska to London Heathrow Airport in December is currently the most expensive (average of £2,013). 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
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Southend-on-Sea
Swindon
Enfield
Kingston upon Thames
Southall
Poole

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.

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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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