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Cheap flights from London to Alaska from £483

LON — ANC
4 Dec — 11 Dec1
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 4/1206:40 -
3 stops26h 57m
Mon 7/1201:42 -
3 stops30h 58m
Deal found 2/11£699
Fri 25/1212:20 -
1 stop22h 10m
Fri 8/110:15 -
1 stop15h 25m
Deal found 31/10£734
Thu 24/1212:20 -
1 stop17h 20m
Tue 29/1205:45 -
1 stop19h 55m
Deal found 30/10£744
Thu 3/1214:45 -
1 stop16h 32m
Fri 11/1201:41 -
1 stop25h 39m
Deal found 3/11£791
Thu 10/1212:20 -
1 stop17h 31m
Wed 23/1202:50 -
2 stops19h 55m
Deal found 3/11£804
Tue 1/1220:35 -
2 stops36h 46m
Tue 8/1207:00 -
2 stops27h 30m
Deal found 3/11£810
Wed 2/1214:45 -
1 stop16h 32m
Wed 9/1217:18 -
1 stop34h 02m
Deal found 2/11£813
Wed 2/1220:35 -
2 stops47h 36m
Tue 8/1202:26 -
2 stops32h 04m
Deal found 2/11£815
Fri 4/1214:45 -
1 stop16h 10m
Tue 8/1205:00 -
2 stops22h 20m
Deal found 2/11£822
Fri 4/1214:45 -
1 stop16h 32m
Fri 11/1206:00 -
1 stop21h 20m
Deal found 2/11£836
Fri 4/1212:15 -
2 stops18h 40m
Tue 8/1207:00 -
2 stops18h 50m
Deal found 2/11£836
Mon 9/1110:25 -
2 stops21h 21m
Sun 22/1107:35 -
2 stops22h 25m
Deal found 2/11£924

Find flight deals from London to Alaska

Round-trip from

£677

One-way from

£483

Popular in

November

Cheapest in

September

Average price

£1,614
13/1-27/1
  • 13/1-27/1
  • 4 total stops
  • 38h 02m total
  • London to Alaska
Search Deals
12/11-31/12
  • 12/11-31/12
  • 2 total stops
  • 44h 46m total
  • London to Alaska
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£185 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£42 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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

Thu 19/11

11:00-20:58

2 stops42h 58m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£500
Fastest return journey

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Thu 24/12

11:55-21:38

2 stops18h 43m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£574

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Thu 17/12

06:20-00:58

3 stops51h 38m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£624

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Wed 11/11

11:10-23:44

2 stops21h 34m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£672

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Thu 14/1

10:25-22:27

2 stops21h 02m

Anchorage

Sun 17/1

06:00-15:00

2 stops24h 00m

£760

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Mon 11/1

10:25-23:27

2 stops22h 02m

Anchorage

Thu 14/1

08:00-19:25

2 stops26h 25m

£760

LondonAnchorage

LGW London Gatwick - ANC Anchorage

LGWANC

London Gatwick

Mon 21/12

11:40-22:38

2 stops19h 58m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£782

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Thu 10/12

14:45-22:17

1 stop16h 32m

Anchorage

Thu 24/12

05:45-12:20

1 stop21h 35m

£791

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Thu 3/12

14:45-22:17

1 stop16h 32m

Anchorage

Fri 11/12

01:41-12:20

1 stop25h 39m

£791

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Mon 11/1

12:15-23:27

2 stops20h 12m

Anchorage

Thu 14/1

08:00-19:30

2 stops26h 30m

£824

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 47 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 £764). Flying from London to Alaska in December is currently the most expensive (average of £1,258). 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.

Reviews of airlines servicing Alaska

See what other customers who have flown with Alaska Airlines,Icelandair, andCondor 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
13,139 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

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
13,139 reviews
Alaska Airlines
7.9
Good
13,139 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

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
766 reviews
Alaska Airlines
7.9
Good
13,139 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

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
625 reviews
Alaska Airlines
7.9
Good
13,139 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

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
8,282 reviews
Alaska Airlines
7.9
Good
13,139 reviews
Check prices

Comfort

7.8

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

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 32m. Fly via Alaska Airlines, Condor, or Icelandair 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 - Anchorage. You may also consider London Gatwick - Anchorage or London Heathrow - 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 £764). Flying from London to Alaska in December is currently the most expensive (average of £1,258). 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 2 airlines flying from London to Alaska

AirlineCheapestAverageFlexibilityOn-time
CondorCheapest£623Average£1,039FlexibilityNo cancel feeOn-time76%
Search Condor flights
Alaska AirlinesCheapest£842Average£1,088FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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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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