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Cheap flights from London Heathrow Airport to Alaska from £494

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ANC
10 Aug — 17 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Alaska

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Alaska
Explore the most affordable flight options available from Heathrow to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2026.

Tue 22/906:40
LHR
-
ANC
2 stops26h 52m
Scandinavian Airlines
Fri 25/906:12
ANC
-
LHR
2 stops22h 23m
Scandinavian Airlines
Deal found 6/7£579
Sat 5/906:40
LHR
-
ANC
3 stops26h 18m
Scandinavian Airlines
Sat 19/908:00
ANC
-
LHR
3 stops23h 25m
Scandinavian Airlines
Deal found 10/7£583
Sat 19/906:40
LHR
-
ANC
2 stops22h 35m
Scandinavian Airlines
Fri 2/1008:00
ANC
-
LHR
3 stops23h 25m
Scandinavian Airlines
Deal found 8/7£585
Thu 17/919:30
LHR
-
ANC
2 stops33h 45m
Scandinavian Airlines
Sat 3/1008:00
ANC
-
LHR
2 stops28h 40m
Scandinavian Airlines
Deal found 8/7£590
Fri 21/818:40
LHR
-
ANC
2 stops34h 28m
Scandinavian Airlines
Fri 28/806:15
ANC
-
LHR
2 stops42h 05m
Scandinavian Airlines
Deal found 8/7£699
Sat 8/806:40
LHR
-
ANC
2 stops22h 28m
Scandinavian Airlines
Sun 23/808:15
ANC
-
LHR
2 stops22h 45m
Scandinavian Airlines
Deal found 9/7£763
Thu 8/1010:20
LHR
-
ANC
2 stops34h 30m
Multiple Airlines
Tue 13/1015:58
ANC
-
LHR
1 stop14h 07m
Multiple Airlines
Deal found 7/7£764
Thu 5/1112:15
LHR
-
FAI
2 stops22h 36m
Multiple Airlines
Wed 18/1101:31
FAI
-
LHR
2 stops24h 19m
Multiple Airlines
Deal found 7/7£864
Fri 21/817:45
LHR
-
FAI
1 stop17h 03m
Multiple Airlines
Fri 28/808:01
FAI
-
LHR
1 stop22h 34m
Multiple Airlines
Deal found 7/7£942
Mon 24/807:25
LHR
-
FAI
3 stops34h 39m
Multiple Airlines
Mon 31/805:31
FAI
-
LHR
1 stop24h 34m
Multiple Airlines
Deal found 10/7£984
Thu 5/1114:45
LHR
-
FAI
1 stop20h 06m
Alaska Airlines
Thu 19/1105:30
FAI
-
LHR
1 stop21h 50m
Alaska Airlines
Deal found 6/7£1,028

Find flight deals from Heathrow to Alaska

Keep the following information in mind while searching for Heathrow to Alaska flight deals. Data was last updated 11 July 2026.

Round-trip from

£579

One-way from

£494

Popular in

December

Cheapest in

January

Average price

£1,190
Scandinavian Airlines
  • Scandinavian Airlines
  • 22/9-25/9
  • 4 total stops
  • 49h 15m total
  • London to Alaska
Search Deals
8/10
  • 8/10
  • 3 total stops
  • 36h 17m total
  • London to Alaska
Search Deals
High demand for flights, 2% potential price rise
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 July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Alaska 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 11 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Alaska that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sat 19/9

06:40-20:15

2 stops22h 35m

Anchorage

Fri 2/10

08:00-16:00

2 stops23h 00m

£580

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sat 5/9

06:40-23:58

2 stops26h 18m

Anchorage

Sat 19/9

08:00-16:25

3 stops23h 25m

£583

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 22/9

06:40-00:32

3 stops26h 52m

Anchorage

Fri 25/9

06:12-18:30

3 stops27h 18m

£584

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 18/9

19:30-20:15

2 stops33h 45m

Anchorage

Sat 3/10

06:12-18:30

2 stops27h 18m

£590

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Thu 17/9

19:30-20:15

2 stops33h 45m

Anchorage

Sat 3/10

08:00-21:40

2 stops28h 40m

£590

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 18/8

07:05-20:12

3 stops22h 07m

Anchorage

Tue 25/8

08:15-21:40

2 stops28h 25m

£783

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Thu 5/11

12:15-01:51

2 stops22h 36m

Fairbanks

Wed 18/11

01:31-10:50

2 stops24h 19m

£864

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 21/8

07:05-20:12

3 stops22h 07m

Anchorage

Fri 28/8

06:15-13:35

2 stops22h 20m

£913

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sun 20/9

21:25-22:45

2 stops34h 20m

Anchorage

Sun 4/10

12:22-20:20

2 stops22h 58m

£961

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Thu 5/11

14:45-09:29

2 stops27h 44m

Fairbanks

Thu 19/11

05:30-12:20

1 stop21h 50m

£1,031

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Alaska

Have a flexible travel schedule? Discover the best time to fly to Alaska from Heathrow 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 London Heathrow Airport to Alaska

How much does it cost for a return flight from London Heathrow Airport to Alaska?

Reviews of airlines servicing Alaska

Get insights into the airlines that provide service to Alaska. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Alaska. Reviews last updated 11 July 2026.
Read reviews from past customers who have flown with Icelandair from London Heathrow Airport to Alaska. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
704 reviews
Check prices

Crew

8.0

Boarding

7.2

Comfort

6.9

Food

6.2

Overall

7.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Sara,Jul 2026

KEF - IAD

It was frustrating to be seated next to two children whose parents were not immediately adjacent to them. The parents were disengaged with their kids and I ended up having to assist/direct children who were not my own.
Icelandair
7.0
Good
704 reviews
Icelandair
7.0
Good
704 reviews
Check prices

Crew

8.0

Boarding

7.2

Comfort

6.9

Food

6.2

Overall

7.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Sara,Jul 2026

KEF - IAD

It was frustrating to be seated next to two children whose parents were not immediately adjacent to them. The parents were disengaged with their kids and I ended up having to assist/direct children who were not my own.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Alaska. 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 London Heathrow Airport to Alaska?

    Airlines like Scandinavian Airlines and Alaska Airlines fly from London Heathrow Airport to Alaska in about 22h 35m. The time it takes to get you to your destination can typically vary by up to 5h 09m. There are 4471 mi between London Heathrow Airport and Alaska. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Heathrow to Alaska that include hotel bookings?

    Yes. In addition to deals on Heathrow to Alaska flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Alaska?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Alaska.

  • Can I find deals for business class flights from Heathrow to Alaska?

    Yes. Cheapflights offers flight deals from Heathrow to Alaska by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Heathrow to Alaska

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Top airline flying from Heathrow to Alaska

Discover the top airline that operate flights from Heathrow to Alaska. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 July 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£631Average£732FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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 Heathrow to Alaska?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Alaska. 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 Heathrow to Alaska?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Alaska from Heathrow.

Can Cheapflights find flights from Heathrow to Alaska with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Alaska with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Alaska become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Alaska flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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