Cheap flights from London to Alaska from £466

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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ANC
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 12 December 2025.

Wed 24/1212:15LHR - FAI
2 stops33h 50mMultiple Airlines
Fri 9/105:51FAI - LHR
2 stops19h 59mMultiple Airlines
Deal found 9/12£821
Wed 24/1212:20LHR - FAI
1 stop21h 25mVirgin Atlantic
Thu 8/101:30FAI - LHR
1 stop24h 00mVirgin Atlantic
Deal found 9/12£1,252
Wed 24/1211:05LHR - FAI
2 stops22h 40mDelta
Thu 8/101:30FAI - LHR
1 stop24h 00mDelta
Deal found 9/12£1,273
Wed 24/1211:55LGW - FAI
2 stops19h 31mIcelandair
Fri 9/108:00FAI - LGW
2 stops17h 55mIcelandair
Deal found 9/12£1,279
Tue 16/1211:05LHR - ANC
1 stop16h 59mVirgin Atlantic
Mon 22/1206:00ANC - LHR
1 stop16h 05mVirgin Atlantic
Deal found 11/12£1,478
Tue 16/1217:45LHR - ANC
2 stops40h 06mMultiple Airlines
Mon 22/1223:59ANC - LHR
2 stops31h 51mMultiple Airlines
Deal found 11/12£1,493
Tue 16/1209:10LHR - ANC
2 stops22h 46mUnited Airlines
Mon 22/1221:00ANC - LHR
1 stop23h 55mUnited Airlines
Deal found 11/12£1,496
Mon 15/1212:10LHR - FAI
2 stops23h 28mMultiple Airlines
Sun 21/1201:55FAI - LHR
2 stops34h 10mMultiple Airlines
Deal found 10/12£1,633
Mon 15/1209:10LCY - FAI
2 stops24h 29mMultiple Airlines
Mon 22/1212:15FAI - LCY
2 stops20h 15mMultiple Airlines
Deal found 10/12£1,695
Sat 13/1208:20LHR - ANC
2 stops22h 24mMultiple Airlines
Fri 19/1201:25ANC - LHR
2 stops25h 05mMultiple Airlines
Deal found 12/12£1,791
Mon 22/1212:15LHR - FAI
2 stops19h 11mMultiple Airlines
Tue 23/1212:15FAI - LHR
2 stops37h 35mMultiple Airlines
Deal found 10/12£1,863
Sat 13/1211:35LHR - ANC
1 stop20h 21mUnited Airlines
Sat 20/1221:00ANC - LHR
2 stops24h 40mUnited Airlines
Deal found 12/12£1,881

Find flight deals from London to Alaska

Keep the following information in mind while searching for London to Alaska flight deals. Data was last updated 12 December 2025.

Round-trip from

£630

One-way from

£466

Popular in

January

Cheapest in

October

Average price

£1,255
24/1-30/1
  • 24/1-30/1
  • 4 total stops
  • 44h 21m total
  • London to Alaska
21/5
  • 21/5
  • 3 total stops
  • 37h 47m total
  • London to Alaska
Highest demand for flights based on searches. 14% potential increase in price (£133 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 12 December 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

Sat 24/1

12:15-23:56

2 stops20h 41m

Fairbanks

Fri 30/1

02:10-10:50

2 stops23h 40m

£630

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 26/1

12:15-22:52

2 stops19h 37m

Anchorage

Mon 9/2

08:00-19:30

2 stops26h 30m

£686

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 13/4

21:25-01:28

2 stops37h 03m

Anchorage

Mon 20/4

12:00-11:55

2 stops38h 55m

£698

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 25/1

11:55-22:52

2 stops19h 57m

Anchorage

Sun 1/2

07:00-10:55

2 stops18h 55m

£704

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Mon 13/4

15:40-01:28

2 stops18h 48m

Anchorage

Mon 20/4

12:00-14:40

2 stops41h 40m

£704

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sun 25/1

12:15-23:52

2 stops20h 37m

Anchorage

Sun 1/2

08:00-10:50

2 stops17h 50m

£706

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 31/3

21:25-00:39

2 stops36h 14m

Anchorage

Thu 9/4

12:00-20:20

2 stops23h 20m

£709

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 13/4

21:25-01:28

2 stops37h 03m

Anchorage

Sun 19/4

10:00-11:55

2 stops16h 55m

£712

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 4/5

21:25-22:34

2 stops34h 09m

Anchorage

Mon 18/5

08:00-11:55

2 stops18h 55m

£716

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 12/1

20:35-22:52

2 stops35h 17m

Anchorage

Mon 26/1

08:00-10:50

2 stops17h 50m

£718

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 55 results
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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 £656). Flying from London to Alaska in July is currently the most expensive (average of £984). 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 12 December 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 12 December 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.

Comfort

7.3

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.5

Overall

7.5

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!

Comfort

7.3

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.5

Overall

7.5

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!

Comfort

7.3

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.5

Overall

7.5

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!

Comfort

7.3

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.5

Overall

7.5

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!

Comfort

7.3

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.5

Overall

7.5

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!

Comfort

7.3

Boarding

7.7

Food

6.9

Crew

8.2

Entertainment

7.5

Overall

7.5

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 20h 11m. Fly via Icelandair or KLM to get the fastest option. London and Alaska are separated by a distance of 4475 mi. This flight may include one or multiple stops.

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

  • 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 £656). Flying from London to Alaska in July is currently the most expensive (average of £984). 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

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Alternative routes for London to Alaska

See prices for flight routes from nearby airports that may be better suited for you.

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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£538Average£751FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapest£653Average£858FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£697Average£1,050FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£806Average£1,284FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£1,056Average£1,224FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£1,069Average£1,272FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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.

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