Cheap flights from London to Alaska from £355

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ANC
26 Aug — 2 Sep1
1 adult

Cheap flight deals from London to Alaska

Keep the following information in mind while searching for London to Alaska flight deals. Data was last updated 21 August 2025.

Round-trip from

£657

One-way from

£355

Popular in

October

Cheapest in

April

Average price

£1,204
5/10-12/10
  • 5/10-12/10
  • 3 total stops
  • 50h 37m total
  • London to Alaska
15/10
  • 15/10
  • 3 total stops
  • 54h 38m total
  • London to Alaska
High demand for flights, 2% potential price rise
Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from London to Alaska

Cheapest flights from London to Alaska
Explore the most affordable flight options available from London to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2025.

Sun 5/1010:55LGW - ANC
1 stop22h 27mMultiple Airlines
Sun 12/1005:05ANC - LGW
2 stops20h 50mMultiple Airlines
Deal found 18/8£664
Fri 7/1111:20LHR - ANC
2 stops23h 44mMultiple Airlines
Sat 8/1113:50ANC - LHR
2 stops42h 00mMultiple Airlines
Deal found 20/8£671
Thu 18/915:40LGW - FAI
2 stops20h 05mMultiple Airlines
Wed 24/902:08FAI - LGW
2 stops27h 32mMultiple Airlines
Deal found 19/8£672
Thu 11/909:55LHR - ANC
1 stop23h 39mMultiple Airlines
Thu 25/902:45ANC - LHR
2 stops29h 30mMultiple Airlines
Deal found 20/8£673
Fri 26/910:55LGW - ANC
1 stop22h 39mMultiple Airlines
Tue 7/1013:59ANC - LGW
2 stops35h 56mMultiple Airlines
Deal found 19/8£676
Sun 5/1021:25LHR - ANC
2 stops34h 20mIcelandair
Sat 11/1013:10ANC - LHR
2 stops37h 45mIcelandair
Deal found 20/8£686
Wed 8/1007:05LHR - ANC
3 stops27h 54mScandinavian Airlines
Wed 22/1006:00ANC - LHR
3 stops27h 30mScandinavian Airlines
Deal found 18/8£690
Sun 5/1015:40LGW - ANC
2 stops40h 05mIcelandair
Sun 12/1011:16ANC - LGW
2 stops18h 24mIcelandair
Deal found 20/8£700
Tue 26/821:25LHR - ANC
2 stops34h 22mIcelandair
Tue 2/916:46ANC - LHR
2 stops34h 09mIcelandair
Deal found 19/8£702
Thu 25/914:40LGW - ANC
2 stops42h 54mMultiple Airlines
Sat 4/1000:24ANC - LGW
1 stop25h 31mMultiple Airlines
Deal found 19/8£702
Sun 5/1021:25LHR - ANC
2 stops34h 20mIcelandair
Sun 12/1011:16ANC - LHR
2 stops24h 04mIcelandair
Deal found 20/8£703
Sun 5/1015:40LGW - ANC
2 stops19h 19mMultiple Airlines
Fri 10/1001:47ANC - LGW
2 stops27h 48mMultiple Airlines
Deal found 18/8£712

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 21 August 2025.
Use the filters below to find and compare flights from London to Alaska that are best for you.

Fly from

London

Fly to

Alaska

Route

Depart

Return

Price

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sat 27/9

09:50-00:25

2 stops23h 35m

Anchorage

Sat 4/10

00:24-10:55

1 stop25h 31m

£667

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 7/11

11:20-02:04

2 stops23h 44m

Anchorage

Sat 8/11

13:50-16:50

2 stops42h 00m

£671

LondonFairbanks

LGW - FAI

LGWFAI

London Gatwick

Thu 18/9

15:40-02:45

2 stops20h 05m

Fairbanks

Wed 24/9

02:08-14:40

2 stops27h 32m

£672

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Thu 11/9

09:55-00:34

1 stop23h 39m

Anchorage

Thu 25/9

02:45-17:15

2 stops29h 30m

£673

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Fri 26/9

10:55-00:34

1 stop22h 39m

Anchorage

Tue 7/10

13:59-10:55

2 stops35h 56m

£676

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Fri 26/9

10:55-00:34

1 stop22h 39m

Anchorage

Sun 5/10

05:00-10:55

2 stops20h 55m

£683

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sun 5/10

21:25-22:45

2 stops34h 20m

Anchorage

Sat 11/10

13:10-11:55

2 stops37h 45m

£686

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 8/10

07:05-01:59

3 stops27h 54m

Anchorage

Wed 22/10

06:00-18:30

3 stops27h 30m

£690

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 5/10

15:40-22:45

2 stops40h 05m

Anchorage

Sun 12/10

07:05-14:40

2 stops22h 35m

£692

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 5/10

15:40-01:59

2 stops19h 19m

Anchorage

Sun 12/10

11:16-14:40

2 stops18h 24m

£699

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Showing 1-10 of 51 results
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Best time to book a flight from London to Alaska

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

What is the cheapest month to book a flight from London to Alaska?

Currently, January is the cheapest month in which you can book a flight from London to Alaska (average of £987). Flying from London to Alaska in July is currently the most expensive (average of £1,765). 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 LON to AK?

Find hourly flight availability from London to Alaska. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 August 2025.

When flying from London to Alaska, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from London 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 21 August 2025.
See what other customers who have flown with Scandinavian Airlines, Virgin Atlantic, andIcelandair from London to Alaska have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

6.6

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu

Food

6.6

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu

Food

6.6

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu

Food

6.6

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu

Food

6.6

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu

Food

6.6

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu

Related info for your journey

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

    There are many flights that can get you from London to Alaska in 26h 05m. Fly via Icelandair, Delta, or Virgin Atlantic to get the fastest option. London and Alaska are separated by a distance of 4216 mi. This flight may include one or multiple stops.

  • What are the most popular routes from London to Alaska?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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.

  • What is the cheapest month to book a flight from London to Alaska?

    Currently, January is the cheapest month in which you can book a flight from London to Alaska (average of £987). Flying from London to Alaska in July is currently the most expensive (average of £1,765). 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

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Alternative routes for London to Alaska

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from London to Alaska

Discover the top 6 airlines that operate flights from London 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 21 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£535Average£746FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapest£634Average£843FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£707Average£1,049FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£801Average£1,207FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£1,048Average£1,198FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£1,063Average£1,287FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Alaska?

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

Cheapflights helps you find that perfect flight to Alaska from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Alaska flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Alaska 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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