$664 Find Cheap Flights from London to Alaska - Compare and Save

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Book Cheap London to Alaska Plane Tickets

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Alaska

Mon, Feb 1 - Tue, Feb 9
Multiple Airlines Logo
12:15 pm - 10:22 pmLHR  London Heathrow-ANC Anchorage
19h 07m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl
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2:28 am - 10:50 amANC  Anchorage-LHR London Heathrow
23h 22m2 stops Seattle/Tacoma Intl Reykjavik Keflavik Intl
$906Multiple Airlines
Thu, Feb 4 - Mon, Feb 15
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10:25 am - 10:22 pmLGW  London Gatwick-ANC Anchorage
20h 57m2 stops Frankfurt am Main Seattle/Tacoma Intl
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9:00 am - 3:00 pmANC  Anchorage-LGW London Gatwick
21h 00m2 stops Seattle/Tacoma Intl Frankfurt am Main
$915Multiple Airlines
Thu, Mar 25 - Sun, Apr 4
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10:25 am - 10:40 pmLGW  London Gatwick-ANC Anchorage
20h 15m2 stops Frankfurt am Main Seattle/Tacoma Intl
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9:00 am - 7:10 pmANC  Anchorage-LGW London Gatwick
25h 10m2 stops Seattle/Tacoma Intl Frankfurt am Main
$986Multiple Airlines
Thu, Dec 24 - Tue, Dec 29
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12:20 pm - 8:40 pmLHR  London Heathrow-ANC Anchorage
17h 20m1 stop Seattle/Tacoma Intl
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5:45 am - 10:40 amANC  Anchorage-LHR London Heathrow
19h 55m1 stop Seattle/Tacoma Intl
$998Multiple Airlines
Fri, Dec 11 - Fri, Dec 25
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2:45 pm - 10:17 pmLHR  London Heathrow-ANC Anchorage
16h 32m1 stop Seattle/Tacoma Intl
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11:11 am - 12:20 pmANC  Anchorage-LHR London Heathrow
16h 09m1 stop Seattle/Tacoma Intl
$1,000Alaska Airlines
Mon, Feb 1 - Wed, Feb 10
Multiple Airlines Logo
2:55 pm - 10:22 pmLHR  London Heathrow-ANC Anchorage
16h 27m1 stop Seattle/Tacoma Intl
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10:00 am - 12:10 pmANC  Anchorage-LHR London Heathrow
17h 10m1 stop Seattle/Tacoma Intl
$1,023Multiple Airlines
Mon, Jan 18 - Sun, Jan 24
Multiple Airlines Logo
12:15 pm - 10:22 pmLHR  London Heathrow-ANC Anchorage
19h 07m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl
Multiple Airlines Logo
6:05 am - 10:40 amANC  Anchorage-LHR London Heathrow
19h 35m1 stop Seattle/Tacoma Intl
$1,051Multiple Airlines
Sat, Apr 17 - Sat, Apr 24
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10:30 am - 8:39 pmLGW  London Gatwick-ANC Anchorage
19h 09m2 stops Frankfurt am Main Seattle/Tacoma Intl
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8:00 am - 7:10 pmANC  Anchorage-LGW London Gatwick
26h 10m2 stops Seattle/Tacoma Intl Frankfurt am Main
$1,056Multiple Airlines
Thu, Nov 26 - Thu, Dec 3
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12:20 pm - 8:57 pmLHR  London Heathrow-ANC Anchorage
17h 37m1 stop Seattle/Tacoma Intl
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6:00 am - 10:40 amANC  Anchorage-LHR London Heathrow
19h 40m1 stop Seattle/Tacoma Intl
$1,062Multiple Airlines
Mon, Jan 18 - Sun, Jan 24
Multiple Airlines Logo
12:15 pm - 12:16 pmLHR  London Heathrow-ANC Anchorage
33h 01m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl
Multiple Airlines Logo
2:35 pm - 10:50 amANC  Anchorage-LHR London Heathrow
35h 15m2 stops Seattle/Tacoma Intl Reykjavik Keflavik Intl
$1,068Multiple 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.

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

The cheapest month for flights from London to Alaska is January, when tickets cost $974 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,687 and $1,622 respectively.

Find deals

Good to know

Low season

November

Cheapest flight

$664
Best time to beat the crowds but there is an average 61% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from London 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

 
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.
6.9
IcelandairOverall score based on 764 reviews
6.9Entertainment
6.1Food
7.2Boarding
8.0Crew
6.9Comfort
Airline reviews

Flight was ok but the food was poor, and the business chairs were not comfortable.

2.0 Mediocre明, Oct 2026
Read more Icelandair reviews

Flight was ok but the food was poor, and the business chairs were not comfortable.

Great experience in Saga Premium. Food was tasty and felt fresh. Seat was comfortable (enough) - would have wanted a layflat seat.

The flight itself was excellent, but getting to the plane was literally an exercise in pain. My wife needs a wheelchair and can only stand/walk for short periods before having extreme pain. We had to take a bus to a loading platform and use a terrible elevator to get up to the plane. Meanwhile the rest of the bus were using the stairs. This meant the people who needed to sit down were stuck standing at the end of the line while everyone else boarded. My wife was in agony.

Let's just say I won't do it again.

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!!

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.

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