$604 Find Cheap Flights from London 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 London to Alaska departing on 8/26. 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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41,299,237 searches in the past 7 days on KAYAK

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Flight Deals

Book Cheap London 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 London 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 London to Alaska

Mon, Jul 6 - Mon, Jul 6
Condor Logo
10:20 am - 3:05 pm
LGW
-
ANC
13h 45m
1 stop
Condor Logo
5:05 pm - 6:50 pm
ANC
-
LGW
16h 45m
1 stop
$831Condor
Mon, Jul 6 - Mon, Jul 6
Condor Logo
10:20 am - 3:05 pm
LGW
-
ANC
13h 45m
1 stop
Condor Logo
5:05 pm - 6:50 pm
ANC
-
LGW
16h 45m
1 stop
$901Condor
Mon, Jul 6 - Mon, Jul 6
Condor Logo
10:20 am - 3:05 pm
LGW
-
ANC
13h 45m
1 stop
Condor Logo
5:05 pm - 6:50 pm
ANC
-
LGW
16h 45m
1 stop
$903Condor
Mon, Oct 5 - Mon, Oct 19
Multiple Airlines Logo
12:00 pm - 10:48 pm
LHR
-
ANC
19h 48m
2 stops
Multiple Airlines Logo
3:58 pm - 3:05 pm
ANC
-
LHR
14h 07m
1 stop
$1,117Multiple Airlines
Sat, Aug 22 - Sat, Sep 5
Scandinavian Airlines Logo
6:40 am - 11:58 pm
LHR
-
ANC
26h 18m
3 stops
Scandinavian Airlines Logo
8:15 am - 4:25 pm
ANC
-
LHR
23h 10m
3 stops
$1,123Scandinavian Airlines
Mon, Oct 5 - Mon, Oct 19
Multiple Airlines Logo
5:00 pm - 12:51 am
LHR
-
ANC
16h 51m
1 stop
Multiple Airlines Logo
11:30 am - 12:10 pm
ANC
-
LHR
15h 40m
1 stop
$1,137Multiple Airlines
Fri, Aug 21 - Sat, Aug 29
Scandinavian Airlines Logo
6:40 am - 8:12 pm
LHR
-
ANC
22h 32m
2 stops
Scandinavian Airlines Logo
6:15 am - 4:25 pm
ANC
-
LHR
25h 10m
3 stops
$1,173Scandinavian Airlines
Mon, Oct 5 - Mon, Oct 19
Icelandair Logo
9:25 pm - 10:48 pm
LHR
-
ANC
34h 23m
2 stops
Icelandair Logo
12:22 pm - 8:20 pm
ANC
-
LHR
22h 58m
2 stops
$1,181Icelandair
Tue, Jul 14 - Fri, Jul 24
Alaska Airlines Logo
5:00 pm - 2:15 am
LHR
-
FAI
18h 15m
1 stop
Alaska Airlines Logo
12:11 pm - 3:05 pm
FAI
-
LHR
17h 54m
1 stop
$1,367Alaska Airlines
Thu, Nov 5 - Thu, Nov 19
Alaska Airlines Logo
2:45 pm - 9:38 pm
LHR
-
FAI
15h 53m
1 stop
Alaska Airlines Logo
5:30 am - 12:20 pm
FAI
-
LHR
21h 50m
1 stop
$1,426Alaska Airlines
Booking Insights

KAYAK's insights & trends for London to Alaska flights

Get data-powered insights and trends into flights from London 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 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 to Alaska departing in July.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 to Alaska is September, when tickets cost $338 (return) on average. On the other hand, the most expensive months are August and June, when the average cost of round-trip tickets is $974 and $967 respectively.

Good to know

Low seasonFebruary
Cheapest flight$604
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 44% 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 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 to Alaska.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London 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 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 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 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 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 airline flying from London 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 London 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.
7.0
IcelandairOverall score based on 678 reviews
6.9Entertainment
8.0Crew
6.9Comfort
6.2Food
7.2Boarding
Airline reviews

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.

2.0 Mediocre3J, Jun 2026
KEF - DEN
Read more Icelandair reviews

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.

The flight itself was fine, even with a one-hour delay leaving on the Reykjavik tarmac (the lost time was made up during flight). Our experience at the Reykjavik airport on arrival was terrible due mostly to the one hour it took for passport control. Only two stations were open for our category, and the room was full with a huge crowd.

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

At least one soda free, felt like I was nickeled to death.

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

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

Cabin class types available on flights to Alaska

Cabin classes available on flights to Alaska. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.