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Cheap flights from London to Alaska from £513

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ANC
9 Jul — 16 Jul1
1 adult

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 4 July 2025.

Round-trip from

£687

One-way from

£513

Popular in

July

Cheapest in

February

Average price

£1,240
23/8-31/8
  • 23/8-31/8
  • 2 total stops
  • 52h 30m total
  • London to Alaska
17/8
  • 17/8
  • 1 total stop
  • 33h 21m total
  • London to Alaska
Highest demand for flights based on searches. 15% potential increase in price (£137 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from London to Alaska

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 4 July 2025.

Sat 23/813:35LHR - ANC
1 stop19h 59mMultiple Airlines
Sun 31/823:44ANC - LHR
1 stop32h 31mMultiple Airlines
Deal found 3/7£687
Wed 8/1007:05LHR - ANC
3 stops25h 10mScandinavian Airlines
Wed 22/1010:40ANC - LHR
3 stops20h 45mScandinavian Airlines
Deal found 3/7£689
Mon 25/815:40LGW - ANC
2 stops44h 07mMultiple Airlines
Mon 1/923:25ANC - LGW
2 stops30h 15mMultiple Airlines
Deal found 3/7£689
Thu 14/813:00LGW - FAI
2 stops18h 36mMultiple Airlines
Wed 29/1002:15FAI - LGW
2 stops24h 40mMultiple Airlines
Deal found 1/7£702
Sat 30/815:40LGW - ANC
2 stops39h 36mIcelandair
Wed 10/917:59ANC - LGW
2 stops35h 41mIcelandair
Deal found 1/7£716
Mon 25/821:25LHR - ANC
2 stops36h 32mIcelandair
Mon 1/917:59ANC - LHR
2 stops32h 56mIcelandair
Deal found 3/7£723
Fri 17/1010:20LHR - FAI
3 stops25h 15mMultiple Airlines
Mon 20/1006:00FAI - LHR
3 stops26h 40mMultiple Airlines
Deal found 3/7£767
Thu 21/808:45LCY - ANC
1 stop15h 25mMultiple Airlines
Sat 6/918:15ANC - LCY
1 stop14h 00mMultiple Airlines
Deal found 1/7£779
Sat 6/921:25LHR - FAI
2 stops34h 22mIcelandair
Sat 27/915:59FAI - LHR
2 stops34h 56mIcelandair
Deal found 2/7£898
Mon 18/809:05LCY - FAI
2 stops22h 31mMultiple Airlines
Mon 25/812:17FAI - LCY
2 stops24h 23mMultiple Airlines
Deal found 4/7£1,009
Thu 27/1117:05LHR - FAI
2 stops40h 12mVirgin Atlantic
Sun 30/1101:30FAI - LHR
2 stops20h 50mVirgin Atlantic
Deal found 2/7£1,133
Thu 27/1106:30LHR - FAI
2 stops24h 57mDelta
Sun 30/1101:30FAI - LHR
1 stop24h 30mDelta
Deal found 1/7£1,139

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 4 July 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

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sat 23/8

13:35-00:34

1 stop19h 59m

Anchorage

Sun 31/8

23:44-17:15

1 stop32h 31m

£687

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 8/10

07:05-23:15

3 stops25h 10m

Anchorage

Wed 22/10

10:40-16:25

3 stops20h 45m

£689

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Mon 25/8

15:40-02:47

2 stops44h 07m

Anchorage

Mon 1/9

23:25-14:40

2 stops30h 15m

£689

LondonFairbanks

LGW - FAI

LGWFAI

London Gatwick

Thu 14/8

13:00-22:36

2 stops18h 36m

Fairbanks

Wed 29/10

02:15-10:55

2 stops24h 40m

£702

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sat 30/8

15:40-22:16

2 stops39h 36m

Anchorage

Wed 10/9

17:59-14:40

2 stops35h 41m

£716

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 25/8

21:25-00:57

2 stops36h 32m

Anchorage

Mon 1/9

17:59-11:55

2 stops32h 56m

£723

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Fri 17/10

10:20-02:35

3 stops25h 15m

Fairbanks

Mon 20/10

06:00-17:40

3 stops26h 40m

£767

LondonAnchorage

LCY - ANC

LCYANC

London City

Thu 21/8

08:45-15:10

1 stop15h 25m

Anchorage

Sat 6/9

18:15-17:15

1 stop14h 00m

£779

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Sat 6/9

21:25-22:47

2 stops34h 22m

Fairbanks

Sat 27/9

15:59-11:55

2 stops34h 56m

£898

LondonFairbanks

LCY - FAI

LCYFAI

London City

Mon 18/8

09:05-22:36

2 stops22h 31m

Fairbanks

Mon 25/8

12:17-21:40

2 stops24h 23m

£1,009

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 28 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, January is the cheapest month in which you can book a flight from London to Alaska (average of £987). Flying from London to Alaska in July is currently the most expensive (average of £1,747). 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 4 July 2025.

When flying from London to Alaska, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 4 July 2025.
See what other customers who have flown with Delta, KLM, andVirgin Atlantic 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.

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.
  • What are the cheapest airlines to fly from London to Alaska one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as £570. However, be on the lookout for offers from British Airways and Icelandair, as they are both options that can get you from London to Alaska for a low price.

  • 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, January is the cheapest month in which you can book a flight from London to Alaska (average of £987). Flying from London to Alaska in July is currently the most expensive (average of £1,747). 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

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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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£528Average£737FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapest£621Average£832FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£684Average£1,168FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£736Average£1,167FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£1,025Average£1,178FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£1,049Average£1,248FlexibilityNo 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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