£507 Find Cheap Flights from London Heathrow Airport to Alaska – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Alaska departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Heathrow to Alaska

Cheapest return prices found by our users on KAYAK in the last 72 hours
Anchorage
Anchorage2 stops£554
Fairbanks
Fairbanks3 stops£793
Juneau
Juneau2 stops£807
Anchorage
Anchorage2 stops£554
Fairbanks
Fairbanks3 stops£793
Juneau
Juneau2 stops£807

Book Cheap Heathrow to Alaska Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Alaska that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Alaska

Thu, 3 Sep - Sun, 6 Sep
Scandinavian Airlines Logo
18:40 - 20:12
LHR
-
ANC
34h 32m
2 stops
Scandinavian Airlines Logo
06:15 - 17:40
ANC
-
LHR
26h 25m
2 stops
£554Scandinavian Airlines
Sat, 12 Sep - Fri, 18 Sep
Scandinavian Airlines Logo
06:40 - 20:15
LHR
-
ANC
22h 35m
2 stops
Scandinavian Airlines Logo
06:12 - 13:35
ANC
-
LHR
22h 23m
2 stops
£566Scandinavian Airlines
Fri, 4 Sep - Fri, 18 Sep
Scandinavian Airlines Logo
06:40 - 23:55
LHR
-
ANC
26h 15m
2 stops
Scandinavian Airlines Logo
08:00 - 13:35
ANC
-
LHR
20h 35m
2 stops
£567Scandinavian Airlines
Sat, 12 Sep - Fri, 18 Sep
Scandinavian Airlines Logo
06:40 - 20:15
LHR
-
ANC
22h 35m
2 stops
Scandinavian Airlines Logo
06:12 - 13:35
ANC
-
LHR
22h 23m
2 stops
£567Scandinavian Airlines
Mon, 7 Sep - Mon, 21 Sep
Icelandair Logo
21:25 - 22:45
LHR
-
ANC
34h 20m
2 stops
Icelandair Logo
09:07 - 11:55
ANC
-
LHR
17h 48m
2 stops
£771Icelandair
Mon, 7 Sep - Mon, 21 Sep
Icelandair Logo
21:25 - 22:45
LHR
-
ANC
34h 20m
2 stops
Icelandair Logo
09:07 - 11:55
ANC
-
LHR
17h 48m
2 stops
£787Icelandair
Tue, 8 Sep - Sun, 20 Sep
Icelandair Logo
21:25 - 22:45
LHR
-
ANC
34h 20m
2 stops
Icelandair Logo
09:07 - 20:20
ANC
-
LHR
26h 13m
2 stops
£798Icelandair
Sat, 24 Oct - Sat, 31 Oct
Alaska Airlines Logo
17:00 - 00:48
LHR
-
ANC
16h 48m
1 stop
Alaska Airlines Logo
17:04 - 12:20
ANC
-
LHR
35h 16m
1 stop
£878Alaska Airlines
Fri, 30 Oct - Sun, 8 Nov
Alaska Airlines Logo
14:45 - 22:48
LHR
-
ANC
16h 03m
1 stop
Alaska Airlines Logo
05:55 - 12:20
ANC
-
LHR
21h 25m
1 stop
£913Alaska Airlines
Mon, 7 Sep - Mon, 14 Sep
Alaska Airlines Logo
17:00 - 00:47
LHR
-
ANC
16h 47m
1 stop
Alaska Airlines Logo
05:07 - 15:05
ANC
-
LHR
24h 58m
1 stop
£919Alaska Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Alaska flights

Get data-powered insights and trends into flights from Heathrow to Alaska to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London Heathrow Airport to Alaska?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Alaska, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Alaska is March, when tickets cost £0 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £1,419 and £1,332 respectively.

Good to know - Cheap tickets from London Heathrow Airport to Alaska

Cheapest flight

£507
Most popular time to fly and prices are also 34% lower on average.
Flight from London Heathrow Airport to Anchorage

FAQs - booking Alaska flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Alaska?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Alaska.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Alaska?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Alaska is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Alaska?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to Alaska with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Alaska?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London Heathrow Airport to Alaska up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Heathrow to Alaska

 
See real verified KAYAK customer reviews for airlines flying from London to Alaska. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Alaska? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12721 reviews
7.8Comfort
8.5Crew
8.1Boarding
7.0Entertainment
7.0Food
Airline reviews

Don’t fly with Alaska if you have a layover in Seattle. Guaranteed to screw you over. We waited at terminal S3 &were >2 hours delayed(mechanical issues)and told to change terminals to a different plane that required riding 3 shuttles to get to new terminal N14. Then they delayed the flight even further and changed gates again. when I went to the customer service in terminal N, the manager turned me away without apologizing & refused to assist me but mandated I leave her alone as her shift is nearly finished and insisted I totake another 2 shuttles to terminal C so I can just talk to another service rep while dragging my family of 4/ kids in tow.

2.0 MediocreWenshu, Mar 2026
SEA - ANC
Read more Alaska Airlines reviews

Don’t fly with Alaska if you have a layover in Seattle. Guaranteed to screw you over. We waited at terminal S3 &were >2 hours delayed(mechanical issues)and told to change terminals to a different plane that required riding 3 shuttles to get to new terminal N14. Then they delayed the flight even further and changed gates again. when I went to the customer service in terminal N, the manager turned me away without apologizing & refused to assist me but mandated I leave her alone as her shift is nearly finished and insisted I totake another 2 shuttles to terminal C so I can just talk to another service rep while dragging my family of 4/ kids in tow.

Everything was good. Please have a wheat free option for snacks in the future.

Not delay for a few passengers. That was uncalled for. If idiots can't make the flight on time thats their fault. Why should I be punished for them? No more holding the plane for one or two people

How can I review what was denied to me. Instead of offering to let me pay for the ticket I got booted of my flight with no way home and no choice but to purchase another ticket for 12 hours later. Filing a complaint with the DOT

I like them since I live in Alaska and I don't have much choice

Coke zero offered...good. The proptness of flight was late. This has been a everytime thing for my last 9 flights. And is putting alot of pressure on my connecting flights. Not a bit punctual. I am always early, but Ak. Airlines is not. And people i happen fly beside, parrot the same thing. The baggage delivery to baggage claim, is not prompt. Its slowwwww. The seats are poorly padded, very crowd. We need more room, not padding the airlines bottom line. Its like a cattle car. More leg room, more side to side room. And attendants need upgrade of verbal skills. I have been faithful to Ak. A., but it will change if changes are not made. Not the only planes in the sky.

We were very late to take off, late exit plane, and luggage took a long time.

Great if it’s not a long flight in coach.

Flight was delayed about 40 minutes by a mechanical problem. This made a long day even longer. Otherwise good.

we booked with Alaska but the flight was operated by AA, and this meant we were unable to check in online. We arrived at the airport to check in over 3 hours before the scheduled flight time, but were not able to be seated together (2 people on the same booking). So we had middle seats solo on a 11 hour flight which sucked

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

Terrible way of boarding in Reykjavik. Seats comfortable. Meal was good.

1. No food on a 8 hr flight is a travesty! The fare was not that low. 2. The entertainment was pretty bad and you had to buy headphones!!! 3. Only 2 toilets for the whole Economy section!!

Unlike my prior three connections on this latest journey, this flight was fairly good. Only issue was boarding as it was once again one of those Icelandic issues of bunch up, walk in the rain to a bus that then has you run up three flights of stairs to board the plain. I was in Saga class but the bus scramble eliminates any chance you get on first and have to then find a place to squeeze your carry on into an overhead that the people in economy populate so they can grab it on their way out up front. But unlike other Icelandic flights this journey I did find more the of the business class like accommodations then the other air segments. This one found a pillow and blanket waiting for me and I actually received a small cup of sparkling wine and had a bottle of water in place. Service was attentive and the flight departed and arrived on time. Received a menu and had choices of a hot or cold meal. I choose the hot which was cod and it was good. Decent size portion, salad and a choice of dinner rolls. Beverage menu was a selection of wines, beer and soft drinks. Desert was a small Tiramisu. Overall the six hour flight was a good experience for the price point.

We paid for saga class, which is the business class for international. My seat was broken and did not recline and my monitor for in-flight entertainment was broken.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

did internet check in but still had to get checked in at the counter and this was not the first time. Bummer!

Paying $75 for my bag is disgusting. Got off ground late so I missed my connections. Kept us waiting for passengers in the cold. Will not use them again.

Everything you need to know for your flight from Heathrow to Alaska

Information on your arrival and departure airports