£422 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 4/11. 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

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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Alaska.
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Cheap Flights from London to Alaska

Cheapest return prices found by our users on KAYAK in the last 72 hours
Anchorage
Anchorage2 stops£615
Fairbanks
Fairbanks1 stop£700
Anchorage
Anchorage2 stops£615
Fairbanks
Fairbanks1 stop£700

Book Cheap London to Alaska Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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 return flight deals from London to Alaska

Tue, 14 Oct - Tue, 21 Oct
Icelandair Logo
15:40 - 22:45LGW-ANC
40h 05m2 stops
Icelandair Logo
10:00 - 14:40ANC-LGW
19h 40m2 stops
£615Icelandair
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Tue, 14 Oct - Tue, 21 Oct
Icelandair Logo
21:25 - 22:45LHR-ANC
34h 20m2 stops
Icelandair Logo
10:00 - 11:55ANC-LHR
16h 55m2 stops
£618Icelandair
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Icelandair Logo
11:55 - 22:48LGW-ANC
18h 53m2 stops
Icelandair Logo
07:05 - 10:55ANC-LGW
18h 50m2 stops
£661Icelandair
Find Deal
Mon, 13 Oct - Mon, 20 Oct
Icelandair Logo
15:40 - 22:45LGW-ANC
40h 05m2 stops
Icelandair Logo
10:00 - 14:35ANC-LGW
19h 35m2 stops
£663Icelandair
Find Deal
Wed, 15 Oct - Wed, 22 Oct
Scandinavian Airlines Logo
06:40 - 22:43LHR-ANC
25h 03m2 stops
Scandinavian Airlines Logo
06:00 - 18:30ANC-LHR
27h 30m3 stops
£739Scandinavian Airlines
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Sun, 12 Oct - Sun, 19 Oct
Scandinavian Airlines Logo
06:40 - 01:59LHR-ANC
28h 19m3 stops
Scandinavian Airlines Logo
06:00 - 18:30ANC-LHR
27h 30m2 stops
£744Scandinavian Airlines
Find Deal
Wed, 8 Oct - Wed, 22 Oct
Virgin Atlantic Logo
13:25 - 01:59LHR-ANC
21h 34m1 stop
Virgin Atlantic Logo
11:15 - 11:20ANC-LHR
15h 05m1 stop
£1,077Virgin Atlantic
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Wed, 8 Oct - Wed, 22 Oct
United Airlines Logo
07:25 - 19:57LHR-ANC
21h 32m2 stops
United Airlines Logo
21:04 - 06:20ANC-LHR
24h 16m1 stop
£1,085United Airlines
Find Deal
Wed, 8 Oct - Wed, 22 Oct
Virgin Atlantic Logo
13:25 - 01:59LHR-ANC
21h 34m1 stop
Virgin Atlantic Logo
06:00 - 11:20ANC-LHR
20h 20m1 stop
£1,086Virgin Atlantic
Find Deal
Thu, 27 Nov - Mon, 1 Dec
British Airways Logo
14:55 - 01:13LHR-FAI
19h 18m1 stop
British Airways Logo
12:19 - 12:20FAI-LHR
15h 01m1 stop
£1,252British Airways
Find Deal
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 return flight from London to Alaska?

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 April, when tickets cost £756 (return) on average. On the other hand, the most expensive months are January and June, when the average cost of return tickets is £1,199 and £1,180 respectively.

How far in advance should I book a flight from London 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 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 a flight from London to Alaska, you should book around 5 weeks before departure, which saves you about 29% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know - Cheap tickets from London to Alaska

Low seasonMarch
Cheapest flight£422
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from London Gatwick 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 travellers 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 return 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.

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

    The cheapest time of day to fly to Alaska is generally in the afternoon, when retur flights cost £1,034 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Alaska is generally in the evening, which is peak travel time and where the average cost of a ticket is £1,419.

Reviews of the top 5 airlines 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.
7.4
Scandinavian AirlinesOverall score based on 1484 reviews
8.0Crew
7.7Boarding
6.7Entertainment
7.3Comfort
6.7Food
Airline reviews

Only one choice for meal seats had no leg room

6.0 GoodMarek, Aug 2025PRG - CPH
Read more Scandinavian Airlines reviews

Only one choice for meal seats had no leg room

I paid extra for our seats on the way coming back from Stockholm to New York the seats were changed and it was totally waved. This happened to three more passengers.

Online check in of SAS is very poor. Even the kiosks at London had system problems. Either it would print boarding tickets or luggage tags. Many other customers had problems . SAS staff was good and helped.

great crew, professional, funny, and great service. good condition plane too! great experience

It was great, used to fly them a lot back 20 years ago but since did KLM as my flight route changed, but very happy with my experience and will come again!

When my flight was changed from delays they were quick to rebook me.

The seats have no legroom. I was bruised on my knees for having them pressed up against the seat in front of me. Then I got food poisoning from the special meal I ordered. Pretty horrible all around.

Airline left me stranded in the U.S. gave me an unrequested refund of 40% of booking and canceled my trip back! When I asked why, the said “we don’t have to tell you why”. “But you can rebook”. Never again! Paid 2x and rebooked on Austrian. What a joke!

I liked the free wifi in business class and the food and beverages.

OK experience except for the fact that I had to pay $100 for one checked in bag in Amsterdam, while it was supposed to be free like it was on the flight from LAX to AMS. I want SAS to reimburse me for this!

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

The crew was excellent as ever on Virgin. The special meal was poor unfortunately. More significantly when we arrived at Manchester Airport there was no air bridge provided and we had to exit the plane down a rickety stair case. This is unacceptable for a transatlantic flight. Whilst I understand that this is the airport’s fault at the end of the day the airline is responsible for our transportation and needs to do something.

Super friendly and helpful staff, from check-in desk to cabin crew.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

We took two long flights with Lufthansa, both were delayed making us miss our connecting flights. Lufthansa took care of the first one. The second was a switch to United and figuring out how to rebook was not a pleasant experience.

It was chaotic. It was overbooked so we didn't have seats until the end but they turned out to be good seats. The gate was at the end of the airport. We had to get busses to the tarmac and board. It just seemed chaotic. Flight was OK. Food was not so good. Lufthansa used to be such a great airline and now as it's with everything else: If you have money you get comforts but if you don't then you end up below deck with the rest of the cattle.

Welp - they boarded us appropriately...then had us sit on the plane for over two hours before cancelling the flight...which meant another night in Munich. I probably had it a little better than most as over 500 people had to be accommodated/re-booked etc. The next day I boarded the same flight (for which I had now been ticketed 3 straight days) and - with "only" an hour delay, managed to finally get home over 2 days later than scheduled. I haven't flown Lufthansa to Europe in years...and I won't be looking to do so again in the future. To be clear, though, the people I interacted with - flight crew, Service Center, check-in were all professional and courteous - management is clearly to blame for their lack of communication and unpreparedness for when things go wrong.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Both flights were delayed over 1 hour. And I had to pay for seats, even though my reservation supposedly included free seat selection.

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Seat very cramped, could not recline. No cheese with meal. Staff very helpful.

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

Flight was delayed but my previous flight was as well so It worked to my advantage. This was my first time in first class. I don't think they ever stopped feeding us. The seating area was very spacious and comfortable. The attendants were wonderful, warm, friendly and very personable.

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

They issued seat assignments and sat my 2 year-old in the row behind me, separate from me and my daughter. Communication/ customer service was terrible. They told me to change it in London, then in London, they told me to talk to the cabin crew, then a supervisor came and stuck us in the back of the plane when we were supposed to be in row 25. Overall, they need to really work on their customer service. Additionally the food was terrible and they ran out of meals and didn’t have any kid options. To top it off there was no in-flight entertainment for the first hour of the trip.

We missed the connection because we had to wait for a shuttle from the plane to the Terminal. Also, we needed assistance and none was available.

When we arrived at the airport - 1st step - printing out your boarding pass - no issue. Not long lines as these machines. 2nd step - processing your bag drop off. There was only one associate there to help 10 kiosks. We had a family in front of us for 20 minutes trying to work on the machine and figure out every step for 4 pieces of luggage. My husband alerted the associate who was able to assist the family. Highly suggest that there are more associates to assist in this process. Besides this issue, security check went very quickly. Our flight was direct to Philadelphia. We had to carry our bags down two flights of steps, then out to the tarmac to a bus, then carry our bags up two flights of stairs to the plane. No one on the flight was expecting that long trek. I could see some people were struggling a bit. All in all - great flight crew, plane was clean and food was great!

There were no gluten-free vegan options available, so food was very limited on this flight, and some of the crew weren’t especially helpful about it. To make matters worse, a passenger was sick on board, and although the area was cleaned, the smell lingered for the rest of the journey. On top of that, we ended up circling for an extra hour, which only made the unpleasant situation drag on even longer.

Checking in prior on line and wait time at Gatwick was terrible. I would rate a big fat ZERO.

I checked in to bags, one arrived one was delayed. I did not receive the bag for 4 days - arrived on Tuesday, received bag on Saturday!

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.

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