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Cheap flights from London Heathrow Airport to Alaska from £486

LHR — ANC
9 Oct — 16 Oct1
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

Thu 1/1018:40 -
2 stops34h 35m
Mon 5/1001:40 -
2 stops31h 00m
Deal found 4/9£578
Thu 1/1019:30 -
2 stops33h 45m
Sat 10/1001:40 -
2 stops35h 00m
Deal found 6/9£597
Tue 6/1011:45 -
2 stops19h 03m
Tue 13/1007:05 -
1 stop19h 15m
Deal found 6/9£657
Tue 20/1009:55 -
2 stops24h 42m
Tue 27/1005:36 -
1 stop21h 04m
Deal found 5/9£662
Thu 1/1011:45 -
2 stops18h 54m
Sun 11/1009:07 -
1 stop17h 13m
Deal found 5/9£671
Thu 22/1017:45 -
1 stop16h 52m
Thu 29/1005:36 -
1 stop21h 04m
Deal found 7/9£676
Sun 4/1011:40 -
1 stop19h 08m
Sun 11/1006:02 -
1 stop20h 18m
Deal found 4/9£687
Mon 5/1017:45 -
1 stop16h 03m
Mon 19/1010:22 -
1 stop15h 58m
Deal found 7/9£697
Thu 22/1017:45 -
1 stop16h 03m
Thu 29/1010:22 -
1 stop16h 18m
Deal found 7/9£722
Tue 6/1017:45 -
1 stop16h 52m
Tue 13/1008:01 -
2 stops18h 19m
Deal found 6/9£794
Thu 22/1017:00 -
2 stops24h 46m
Thu 29/1005:36 -
1 stop22h 44m
Deal found 7/9£806
Thu 5/1112:15 -
2 stops22h 35m
Wed 18/1101:31 -
2 stops24h 19m
Deal found 6/9£878

Find flight deals from Heathrow to Alaska

Round-trip from

£578

One-way from

£486

Popular in

December

Cheapest in

January

Average price

£1,018
Scandinavian Airlines
  • Scandinavian Airlines
  • 1/10-5/10
  • 4 total stops
  • 65h 35m total
  • London to Alaska
Search Deals
11/1-31/12
  • 11/1-31/12
  • 2 total stops
  • 20h 07m total
  • London to Alaska
Search Deals
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 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 Heathrow Airport 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

Mon 19/10

13:55-11:21

3 stops30h 26m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£544

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sun 10/1

14:45-22:22

1 stop16h 37m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£586
Fastest return journey

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sat 14/11

14:45-21:45

1 stop16h 00m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£657

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Tue 20/10

09:55-01:37

2 stops24h 42m

Fairbanks

Tue 27/10

05:36-10:40

1 stop21h 04m

£662

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sun 4/10

11:40-21:48

1 stop19h 08m

Anchorage

Sun 11/10

06:02-11:20

1 stop20h 18m

£687

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sat 13/2

14:45-02:11

1 stop20h 26m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£690

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sun 20/9

21:25-22:45

2 stops34h 20m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£770

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Tue 6/10

17:45-01:37

1 stop16h 52m

Fairbanks

Tue 13/10

08:01-11:20

2 stops18h 19m

£794

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sat 2/1

20:35-13:29

2 stops49h 54m

Anchorage

Wed 31/12

00:00-11:00

Nonstop0h 00m

£813

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Thu 22/10

17:00-23:39

1 stop15h 39m

Anchorage

Thu 29/10

12:24-12:20

1 stop15h 56m

£840

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Showing 1-10 of 23 resultsSorted by cheapest first
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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

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?

Airfare is below average for this route at the moment.
London Heathrow Airport to Alaska flights typically cost between £679 and £1,077 in October.
The cheapest return price found within the last 5 days was £578 on Scandinavian Airlines (1 Oct–5 Oct).

Reviews of airlines servicing Alaska

Read reviews from past customers who have flown with Alaska Airlines,Scandinavian Airlines, andIcelandair from London Heathrow Airport to Alaska. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,895 reviews
Check prices

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

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
12,895 reviews
Alaska Airlines
7.9
Good
12,895 reviews
Check prices

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

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.
Scandinavian Airlines
7.4
Good
1,984 reviews
Alaska Airlines
7.9
Good
12,895 reviews
Check prices

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

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
741 reviews
Alaska Airlines
7.9
Good
12,895 reviews
Check prices

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

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 Heathrow Airport to Alaska?

    Airlines like Alaska Airlines fly from London Heathrow Airport to Alaska in about 15h 39m. The time it takes to get you to your destination can typically vary by up to . There are 4471 mi between London Heathrow Airport and Alaska.

  • 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 3 airlines flying from Heathrow to Alaska

AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£582Average£690FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapest£625Average£847FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Alaska AirlinesCheapest£824Average£1,078FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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

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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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