$792 Find Cheap Flights from London Heathrow Airport to Alaska

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 5/26. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Alaska

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Alaska, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Alaska, as well as popular online travel agencies
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Cheap Flights from Heathrow to Alaska

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Anchorage
Anchorage2 stops$821
Fairbanks
Fairbanks2 stops$802
Anchorage
Anchorage2 stops$821
Fairbanks
Fairbanks2 stops$802

Book Cheap Heathrow to Alaska Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 round-trip flight deals from Heathrow to Alaska

Wed, Jan 28 - Tue, Feb 3
Multiple Airlines Logo
12:15 pm - 2:48 am
LHR
-
FAI
23h 33m2 stops
Multiple Airlines Logo
2:10 am - 10:50 am
FAI
-
LHR
23h 40m2 stops
$802Multiple Airlines
Tue, Apr 14 - Wed, Apr 29
Icelandair Logo
9:25 pm - 10:29 pm
LHR
-
ANC
58h 04m2 stops
Icelandair Logo
1:00 pm - 8:20 pm
ANC
-
LHR
22h 20m2 stops
$821Icelandair
Wed, Feb 18 - Tue, Feb 24
Multiple Airlines Logo
12:15 pm - 1:09 am
LHR
-
ANC
21h 54m2 stops
Multiple Airlines Logo
12:29 am - 10:50 am
ANC
-
LHR
25h 21m2 stops
$867Multiple Airlines
Tue, Jan 27 - Tue, Feb 3
Icelandair Logo
12:15 pm - 9:51 pm
LHR
-
ANC
18h 36m2 stops
Icelandair Logo
8:00 am - 7:30 pm
ANC
-
LHR
26h 30m2 stops
$878Icelandair
Wed, Jan 28 - Wed, Feb 4
Icelandair Logo
12:15 pm - 10:52 pm
LHR
-
ANC
19h 37m2 stops
Icelandair Logo
5:05 am - 10:50 am
ANC
-
LHR
20h 45m2 stops
$883Icelandair
Thu, Apr 16 - Thu, Apr 30
Icelandair Logo
1:05 pm - 1:28 am
LHR
-
ANC
21h 23m2 stops
Icelandair Logo
10:00 am - 11:55 am
ANC
-
LHR
16h 55m2 stops
$905Icelandair
Mon, Jan 26 - Mon, Feb 9
Icelandair Logo
8:35 pm - 9:51 pm
LHR
-
ANC
34h 16m2 stops
Icelandair Logo
8:00 am - 10:50 am
ANC
-
LHR
17h 50m2 stops
$927Icelandair
Thu, Jan 29 - Wed, Feb 4
Virgin Atlantic Logo
2:30 pm - 12:22 am
LHR
-
FAI
18h 52m1 stop
Virgin Atlantic Logo
1:30 am - 10:30 am
FAI
-
LHR
24h 00m1 stop
$1,496Virgin Atlantic
Thu, Feb 19 - Mon, Feb 23
British Airways Logo
2:55 pm - 10:15 pm
LHR
-
FAI
16h 20m1 stop
British Airways Logo
11:30 am - 12:20 pm
FAI
-
LHR
15h 50m1 stop
$3,363British Airways
Thu, Feb 19 - Mon, Feb 23
British Airways Logo
2:55 pm - 10:15 pm
LHR
-
FAI
16h 20m1 stop
British Airways Logo
11:30 am - 12:20 pm
FAI
-
LHR
15h 50m1 stop
$3,364British Airways
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.

How much is a round-trip flight from London Heathrow Airport to Alaska?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Alaska departing in April.

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 October, when tickets cost $1,023 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is $2,119 and $1,724 respectively.

How far in advance should I book a flight from London Heathrow Airport to Alaska?

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Alaska, you should book around 6 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$792
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 12% increase in price.
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 travelers 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 round-trip 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.

  • What is the cheapest time of day to fly to Alaska?

    The cheapest time of day to fly to Alaska is generally in the morning, when round-trip flights cost $1,630 on average. The most expensive time of day to fly to Alaska is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,630.

Reviews of the top airline 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
DeltaOverall score based on 8010 reviews
7.9Entertainment
8.5Crew
8.1Boarding
7.3Food
7.9Comfort
Airline reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

6.0 GoodJeff, Dec 2025
JFK - MIA
Read more Delta reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

For some reason, I couldn't choose my seat. The airline gave me a seat when I got there. Not happy about that. Otherwise, everything else was great!

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

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

Information on your arrival and departure airports