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Cheap flights from London to Alaska from £489

LON — ANC
11 Nov — 18 Nov1
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

Wed 4/1114:45 -
1 stop19h 04m
Sat 7/1102:55 -
1 stop24h 25m
Deal found 8/10£631
Thu 5/1112:15 -
2 stops22h 35m
Thu 12/1105:30 -
2 stops20h 20m
Deal found 8/10£646
Sun 22/1114:45 -
1 stop19h 10m
Sat 28/1102:52 -
1 stop24h 28m
Deal found 8/10£679
Mon 23/1110:25 -
2 stops22h 17m
Mon 30/1106:00 -
2 stops28h 25m
Deal found 9/10£737
Wed 4/1111:55 -
2 stops21h 37m
Sat 7/1102:55 -
2 stops23h 00m
Deal found 8/10£751
Wed 4/1112:15 -
2 stops21h 17m
Sat 7/1102:55 -
2 stops22h 55m
Deal found 8/10£752
Mon 23/1110:25 -
2 stops23h 26m
Sun 29/1102:31 -
2 stops27h 29m
Deal found 9/10£768
Wed 25/1112:15 -
2 stops22h 34m
Wed 2/1217:18 -
2 stops41h 12m
Deal found 11/10£774
Fri 13/1114:45 -
1 stop20h 05m
Mon 16/1105:30 -
1 stop21h 50m
Deal found 11/10£793
Thu 5/1110:25 -
2 stops24h 25m
Thu 12/1105:30 -
2 stops24h 30m
Deal found 8/10£796
Tue 24/1120:35 -
2 stops47h 51m
Tue 1/1209:07 -
2 stops25h 23m
Deal found 10/10£799
Fri 6/1114:45 -
1 stop16h 00m
Fri 13/1110:02 -
1 stop17h 18m
Deal found 8/10£804

Find flight deals from London to Alaska

Round-trip from

£631

One-way from

£489

Popular in

December

Cheapest in

January

Average price

£913
Alaska Airlines
  • Alaska Airlines
  • 4/11-7/11
  • 2 total stops
  • 43h 29m total
  • London to Alaska
Search Deals
10/2-31/12
  • 10/2-31/12
  • 2 total stops
  • 31h 28m total
  • London to Alaska
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Thu 11/2

20:35-10:43

2 stops47h 08m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£524

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Fri 12/2

21:05-10:43

3 stops46h 38m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£548

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Wed 10/2

07:40-00:25

3 stops25h 45m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£550

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Wed 28/10

09:50-19:37

3 stops41h 47m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£582
Fastest return journey

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sat 13/2

14:45-00:10

1 stop18h 25m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£595

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Tue 27/10

10:10-15:52

3 stops37h 42m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£595

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Wed 28/10

18:00-20:59

2 stops34h 59m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£604

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Sun 1/11

12:35-00:32

3 stops44h 57m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£667

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sun 14/3

12:15-09:58

3 stops53h 43m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£675

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Fri 12/3

11:40-09:25

3 stops30h 45m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£700

Flights are sorted by cheapest return flights first.

Deals found on 7/10

Showing 1-10 of 46 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 £736). Flying from London to Alaska in December is currently the most expensive (average of £1,270). 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 below average for this route at the moment.
London to Alaska flights typically cost between £774 and £990 in November.
The cheapest return price found within the last 5 days was £631 on Alaska Airlines (4 Nov–7 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
13,048 reviews
Check prices

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

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
13,048 reviews
Alaska Airlines
7.9
Good
13,048 reviews
Check prices

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

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
7.5
Good
694 reviews
Alaska Airlines
7.9
Good
13,048 reviews
Check prices

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

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
758 reviews
Alaska Airlines
7.9
Good
13,048 reviews
Check prices

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

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
8,257 reviews
Alaska Airlines
7.9
Good
13,048 reviews
Check prices

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

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
6.6
Okay
610 reviews
Alaska Airlines
7.9
Good
13,048 reviews
Check prices

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

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 15h 49m. Fly via Alaska Airlines or Icelandair to get the fastest option. London and Alaska are separated by a distance of 4418 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 - Anchorage. You may also consider London Gatwick - Anchorage or London Gatwick - 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 £736). Flying from London to Alaska in December is currently the most expensive (average of £1,270). 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£632Average£1,053FlexibilityNo cancel feeOn-time76%
Search Condor flights
IcelandairCheapest£640Average£845FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Alaska AirlinesCheapest£843Average£1,102FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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

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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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