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Cheap flights from London to Alaska from £440

LON — ANC
24 Oct — 31 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Alaska

Enter your travel dates to find the best prices.

Cheapest flights from London to Alaska

Fri 6/1106:30 -
2 stops21h 18m
Fri 13/1110:02 -
1 stop15h 38m
Deal found 22/9£654
Sat 7/1112:20 -
1 stop18h 25m
Fri 13/1101:48 -
1 stop23h 52m
Deal found 23/9£686
Tue 20/1011:40 -
1 stop20h 08m
Mon 26/1001:59 -
1 stop24h 41m
Deal found 22/9£693
Wed 4/1111:55 -
2 stops18h 50m
Wed 11/1116:13 -
2 stops33h 42m
Deal found 20/9£731
Wed 4/1112:15 -
2 stops19h 31m
Wed 11/1117:28 -
2 stops32h 22m
Deal found 20/9£732
Tue 3/1120:35 -
2 stops34h 10m
Tue 10/1108:00 -
2 stops26h 30m
Deal found 18/9£735
Thu 19/1110:25 -
2 stops19h 23m
Sat 21/1102:52 -
2 stops31h 33m
Deal found 19/9£743
Mon 16/1110:25 -
2 stops20h 20m
Sun 29/1107:35 -
2 stops22h 25m
Deal found 21/9£744
Sat 24/1017:45 -
1 stop16h 03m
Sat 31/1010:22 -
1 stop16h 18m
Deal found 23/9£769
Fri 13/1112:15 -
2 stops18h 30m
Fri 27/1107:35 -
2 stops26h 55m
Deal found 18/9£769
Mon 9/1110:25 -
2 stops20h 20m
Mon 23/1106:00 -
2 stops24h 00m
Deal found 19/9£769
Wed 4/1111:55 -
2 stops18h 50m
Sun 15/1108:00 -
2 stops17h 55m
Deal found 19/9£775

Find flight deals from London to Alaska

Round-trip from

£654

One-way from

£440

Popular in

December

Cheapest in

January

Average price

£843
6/11-13/11
  • 6/11-13/11
  • 3 total stops
  • 36h 56m total
  • London to Alaska
Search Deals
21/1-31/12
  • 21/1-31/12
  • 2 total stops
  • 23h 35m total
  • London to Alaska
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London to Alaska that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Tue 26/1

09:35-01:46

2 stops25h 11m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£474

LondonFairbanks

LGW London Gatwick - FAI Fairbanks

LGWFAI

London Gatwick

Tue 26/1

09:35-17:30

3 stops40h 55m

Fairbanks

Wed 31/12

00:00-11:00

Nonstop0h 00m

£475

LondonFairbanks

LGW London Gatwick - FAI Fairbanks

LGWFAI

London Gatwick

Sat 23/1

16:10-00:44

3 stops41h 34m

Fairbanks

Wed 31/12

00:00-11:00

Nonstop0h 00m

£498

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Fri 22/1

07:30-15:01

3 stops40h 31m

Fairbanks

Wed 31/12

00:00-11:00

Nonstop0h 00m

£500

LondonFairbanks

LGW London Gatwick - FAI Fairbanks

LGWFAI

London Gatwick

Wed 27/1

09:45-11:17

2 stops34h 32m

Fairbanks

Wed 31/12

00:00-11:00

Nonstop0h 00m

£507

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Mon 25/1

16:10-22:48

2 stops39h 38m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£511

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Wed 27/1

08:05-21:14

3 stops46h 09m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£517

LondonFairbanks

LGW London Gatwick - FAI Fairbanks

LGWFAI

London Gatwick

Fri 22/1

11:05-15:01

3 stops36h 56m

Fairbanks

Wed 31/12

00:00-11:00

Nonstop0h 00m

£534

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Sat 23/1

12:15-21:54

2 stops18h 39m

Fairbanks

Wed 31/12

00:00-11:00

Nonstop0h 00m

£534

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Wed 30/9

08:30-23:39

2 stops24h 09m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£601

Flights are sorted by cheapest return flights first.

Deals found on 20/9

Showing 1-10 of 55 resultsSorted by cheapest first
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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

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 £733). Flying from London to Alaska in December is currently the most expensive (average of £1,266). 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 London to Alaska?

Airfare is typical for this route at the moment.
London to Alaska flights typically cost between £539 and £1,155 in November.
The cheapest return price found within the last 5 days was £654 on Multiple Airlines (6 Nov–13 Nov).

Reviews of airlines servicing Alaska

See what other customers who have flown with Alaska 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.
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
12,962 reviews
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Virgin Atlantic
7.4
Good
694 reviews
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Icelandair
6.9
Okay
749 reviews
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Condor
6.7
Okay
594 reviews
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
British Airways
6.7
Okay
8,226 reviews
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • How long is the flight from London to Alaska?

    There are many flights that can get you from London to Alaska in 16h 03m. Fly via Icelandair, Alaska Airlines, or Condor to get the fastest option. London and Alaska are separated by a distance of 4471 mi. This flight may include one or multiple stops.

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

    The most popular route from London to Alaska is London Heathrow - Fairbanks. You may also consider London Heathrow - Anchorage or London City - Fairbanks.

  • 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 £733). Flying from London to Alaska in December is currently the most expensive (average of £1,266). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for London to Alaska

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Top 3 airlines flying from London to Alaska

AirlineCheapestAverageFlexibilityOn-time
CondorCheapest£630Average£1,050FlexibilityNo cancel feeOn-time76%
Search Condor flights
IcelandairCheapest£638Average£863FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Alaska AirlinesCheapest£840Average£1,099FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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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.

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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!

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

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