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Cheap flights from London to Alaska from £446

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ANC
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Alaska

Keep the following information in mind while searching for London to Alaska flight deals. Data was last updated 21 November 2025.

Round-trip from

£607

One-way from

£446

Popular in

January

Cheapest in

October

Average price

£971
12/1-18/1
  • 12/1-18/1
  • 4 total stops
  • 44h 21m total
  • London to Alaska
Search Deals
8/1
  • 8/1
  • 2 total stops
  • 33h 17m total
  • London to Alaska
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£105 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from London to Alaska

Enter your travel dates to find the best prices.

Cheapest flights from London to Alaska
Explore the most affordable flight options available from London to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2025.

Thu 4/1206:40LHR - ANC
2 stops26h 50mMultiple Airlines
Sat 6/1200:53ANC - LHR
2 stops31h 47mMultiple Airlines
Deal found 20/11£702
Tue 16/1220:35LHR - FAI
2 stops34h 08mMultiple Airlines
Mon 22/1200:15FAI - LHR
2 stops25h 35mMultiple Airlines
Deal found 18/11£926
Wed 26/1111:55LGW - ANC
2 stops21h 35mMultiple Airlines
Tue 2/1202:22ANC - LGW
2 stops23h 33mMultiple Airlines
Deal found 20/11£956
Wed 26/1111:55LGW - ANC
2 stops21h 35mMultiple Airlines
Tue 2/1207:05ANC - LGW
2 stops18h 50mMultiple Airlines
Deal found 19/11£957
Mon 15/1211:55LGW - ANC
2 stops21h 35mMultiple Airlines
Tue 6/108:00ANC - LGW
2 stops17h 55mMultiple Airlines
Deal found 20/11£988
Wed 26/1111:55LGW - ANC
2 stops21h 35mMultiple Airlines
Mon 1/1207:05ANC - LGW
2 stops18h 50mMultiple Airlines
Deal found 20/11£992
Tue 16/1220:35LHR - ANC
2 stops34h 09mIcelandair
Fri 9/108:00ANC - LHR
2 stops17h 50mIcelandair
Deal found 19/11£1,066
Mon 15/1211:55LGW - ANC
2 stops21h 35mMultiple Airlines
Thu 8/105:05ANC - LGW
2 stops20h 50mMultiple Airlines
Deal found 19/11£1,084
Mon 15/1212:15LHR - ANC
2 stops21h 15mMultiple Airlines
Thu 8/107:00ANC - LHR
2 stops18h 50mMultiple Airlines
Deal found 19/11£1,087
Wed 26/1111:55LGW - ANC
2 stops19h 02mIcelandair
Fri 5/1207:05ANC - LGW
2 stops18h 50mIcelandair
Deal found 19/11£1,126
Thu 18/1212:20LHR - FAI
1 stop21h 55mMultiple Airlines
Wed 24/1202:35FAI - LHR
1 stop22h 55mMultiple Airlines
Deal found 19/11£1,140
Thu 4/1214:45LHR - ANC
1 stop16h 57mVirgin Atlantic
Sun 7/1205:55ANC - LHR
1 stop19h 35mVirgin Atlantic
Deal found 20/11£1,167

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Alaska that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 November 2025.
Use the filters below to find and compare flights from London to Alaska that are best for you.

Fly from

London

Fly to

Alaska

Route

Depart

Return

Price

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Mon 12/1

12:15-02:48

2 stops23h 33m

Fairbanks

Mon 19/1

05:51-10:50

2 stops19h 59m

£614

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Mon 9/2

11:55-21:51

2 stops18h 56m

Anchorage

Fri 20/2

08:00-10:55

2 stops17h 55m

£654

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 13/1

12:15-21:51

2 stops18h 36m

Anchorage

Thu 29/1

01:10-10:50

2 stops24h 40m

£663

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Tue 13/1

11:55-22:52

2 stops19h 57m

Anchorage

Fri 30/1

08:00-10:55

2 stops17h 55m

£663

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 14/4

13:05-01:28

2 stops21h 23m

Anchorage

Wed 22/4

13:00-20:20

2 stops22h 20m

£669

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Tue 14/4

15:40-01:28

2 stops18h 48m

Anchorage

Wed 22/4

13:00-14:40

2 stops40h 40m

£677

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sun 1/2

12:15-21:51

2 stops18h 36m

Anchorage

Sat 28/2

05:15-10:50

2 stops20h 35m

£692

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 1/2

11:55-21:51

2 stops18h 56m

Anchorage

Sat 28/2

06:00-10:55

2 stops19h 55m

£692

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sat 17/1

11:55-21:51

2 stops18h 56m

Anchorage

Fri 23/1

08:00-10:55

2 stops17h 55m

£694

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Thu 22/1

11:55-21:51

2 stops18h 56m

Anchorage

Sun 25/1

08:00-10:55

2 stops17h 55m

£708

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 60 results
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6

Best time to book a flight from London to Alaska

Have a flexible travel schedule? Discover the best time to fly to Alaska from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from London to Alaska?

Currently, September is the cheapest month in which you can book a flight from London to Alaska (average of £672). Flying from London to Alaska in July is currently the most expensive (average of £1,008). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to AK?

Find hourly flight availability from London to Alaska. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 November 2025.

When flying from London to Alaska, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 33% versus a flight in the morning.

How much does it cost for a return flight from London to Alaska?

Reviews of airlines servicing Alaska

Get insights into the airlines that provide service to Alaska. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Alaska. Reviews last updated 21 November 2025.
See what other customers who have flown with Virgin Atlantic, Scandinavian Airlines, andIcelandair from London to Alaska have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
674 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.2

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
674 reviews
Virgin Atlantic
7.5
Good
674 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.2

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Scandinavian Airlines
7.4
Good
1,584 reviews
Virgin Atlantic
7.5
Good
674 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.2

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Icelandair
7.0
Good
581 reviews
Virgin Atlantic
7.5
Good
674 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.2

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Lufthansa
6.8
Okay
7,579 reviews
Virgin Atlantic
7.5
Good
674 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.2

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,533 reviews
Virgin Atlantic
7.5
Good
674 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Crew

8.2

Overall

7.5

Comfort

7.3

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Find useful and relevant information for your journey from London to Alaska. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Alaska?

    There are many flights that can get you from London to Alaska in 18h 36m. Fly via Icelandair or Delta to get the fastest option. London and Alaska are separated by a distance of 4471 mi. This flight may include one or multiple stops.

  • What are the most popular routes from London to Alaska?

    The most popular route from London to Alaska is London Heathrow - Anchorage. You may also consider London Gatwick - Anchorage or London Heathrow - Fairbanks.

  • Can I find deals for flights from London to Alaska that include hotel bookings?

    Yes. In addition to deals on London to Alaska flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Alaska?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Alaska.

  • Can I find deals for business class flights from London to Alaska?

    Yes. Cheapflights offers flight deals from London to Alaska by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Alaska?

    Currently, September is the cheapest month in which you can book a flight from London to Alaska (average of £672). Flying from London to Alaska in July is currently the most expensive (average of £1,008). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Alaska

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from London to Alaska

Discover the top 6 airlines that operate flights from London to Alaska. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 November 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£669Average£879FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£685Average£770FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£714Average£1,106FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£826Average£1,288FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£1,080Average£1,249FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£1,095Average£1,303FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Alaska?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Alaska. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to Alaska?

Cheapflights helps you find that perfect flight to Alaska from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Alaska with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Alaska flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Alaska become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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