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Cheap flights from Alaska to London Heathrow Airport from £340

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
29 Dec — 5 Jan1
1 adult
1 adult, Economy, 0 bags

Find 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 29 November 2025.

Sat 13/1223:59ANC - LHR
1 stop24h 41mUnited Airlines
Fri 26/1210:25LHR - ANC
1 stop18h 20mUnited Airlines
Deal found 27/11£550
Sat 13/1223:59ANC - LHR
1 stop24h 41mUnited Airlines
Thu 25/1206:50LHR - ANC
2 stops21h 55mUnited Airlines
Deal found 27/11£553
Sat 13/1223:59ANC - LHR
1 stop24h 41mUnited Airlines
Wed 24/1208:30LHR - ANC
2 stops24h 55mUnited Airlines
Deal found 27/11£562
Sun 7/1223:59ANC - LHR
1 stop24h 41mUnited Airlines
Thu 25/1206:50LHR - ANC
2 stops21h 55mUnited Airlines
Deal found 27/11£578
Sat 13/1223:59ANC - LHR
2 stops22h 31mUnited Airlines
Tue 23/1212:05LHR - ANC
2 stops21h 20mUnited Airlines
Deal found 27/11£579
Mon 8/1200:30ANC - LHR
2 stops20h 55mDelta
Thu 25/1206:30LHR - ANC
2 stops21h 19mDelta
Deal found 27/11£583
Sun 7/1223:59ANC - LHR
1 stop24h 41mUnited Airlines
Wed 24/1209:30LHR - ANC
2 stops22h 26mUnited Airlines
Deal found 27/11£587
Wed 10/1207:05ANC - LHR
2 stops19h 45mMultiple Airlines
Fri 26/1211:35LHR - ANC
1 stop20h 21mMultiple Airlines
Deal found 27/11£590
Thu 4/1201:30FAI - LHR
1 stop24h 00mDelta
Tue 9/1206:30LHR - FAI
2 stops26h 48mDelta
Deal found 28/11£618
Fri 5/1205:55FAI - LHR
1 stop16h 15mAmerican Airlines
Tue 9/1213:10LHR - FAI
2 stops22h 28mAmerican Airlines
Deal found 26/11£897

Cheap flight deals from Alaska to Heathrow

Keep the following information in mind while searching for Alaska to Heathrow flight deals. Data was last updated 29 November 2025.

Round-trip from

£550

One-way from

£340

Popular in

January

Cheapest in

November

Average price

£645
United Airlines
  • United Airlines
  • 13/12-26/12
  • 2 total stops
  • 43h 01m total
  • Alaska to London
Search Deals
United Airlines
  • United Airlines
  • 13/12
  • 2 total stops
  • 21h 41m total
  • Alaska to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£99 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 29 November 2025.
Use the filters below to find and compare flights from Alaska to London Heathrow Airport that are best for you.

Fly from

Alaska

Fly to

Heathrow

Route

Depart

Return

Price

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 21/1

05:55-10:30

1 stop19h 35m

London Heathrow

Tue 3/2

06:30-18:56

2 stops21h 26m

£582

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 20/1

01:20-10:30

1 stop24h 10m

London Heathrow

Thu 5/2

06:30-18:56

2 stops21h 26m

£582

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 25/1

21:15-07:05

1 stop24h 50m

London Heathrow

Fri 6/2

08:40-18:56

2 stops19h 16m

£582

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 9/12

23:59-09:40

1 stop24h 41m

London Heathrow

Wed 24/12

07:30-00:25

2 stops25h 55m

£587

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 20/1

01:20-06:20

2 stops20h 00m

London Heathrow

Wed 4/2

06:30-18:56

2 stops21h 26m

£589

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 11/1

05:55-10:30

1 stop19h 35m

London Heathrow

Sun 18/1

06:30-18:56

2 stops21h 26m

£594

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sat 28/3

20:29-06:30

1 stop25h 01m

London Heathrow

Wed 15/4

06:30-20:20

2 stops22h 50m

£596

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 29/3

06:15-14:15

1 stop23h 00m

London Heathrow

Wed 15/4

09:55-00:23

2 stops23h 28m

£596

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 25/3

06:15-10:30

1 stop20h 15m

London Heathrow

Tue 21/4

06:30-20:20

2 stops22h 50m

£596

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 25/3

06:15-10:30

1 stop20h 15m

London Heathrow

Wed 22/4

06:30-20:20

2 stops22h 50m

£596

Flights are sorted by cheapest return flights first.

Deals found on 27/11

Showing 1-10 of 24 results
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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 £527). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £893). 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.

What is the cheapest time of day to fly from AK to LHR?

Find hourly flight availability from Alaska to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 November 2025.

When flying from Alaska to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 49% versus a flight at midday.

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 21h 41m. Your travel time can differ by up to 3h 09m. 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 £527). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £893). 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
Slough
Croydon
Hounslow
Northampton
Gatwick
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Brentford
Winchester
Swindon
Crawley
Romford
Chichester
Bedford

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

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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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