Cheap flights from London to Alaska from £345

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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ANC
19 Apr — 26 Apr1
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 20 March 2026.

Sat 16/510:20
LGW
-
ANC
1 stop13h 30m
Condor
Sat 23/516:50
ANC
-
LGW
1 stop12h 50m
Condor
Deal found 17/3£572
Fri 15/515:45
LGW
-
ANC
1 stop32h 05m
Condor
Sat 23/516:50
ANC
-
LGW
1 stop16h 55m
Condor
Deal found 17/3£587
Sat 16/510:20
LGW
-
ANC
1 stop13h 30m
Condor
Sat 16/516:50
ANC
-
LGW
1 stop16h 55m
Condor
Deal found 17/3£617
Fri 15/515:45
LGW
-
ANC
1 stop32h 05m
Condor
Thu 28/517:05
ANC
-
LGW
1 stop16h 45m
Condor
Deal found 15/3£638
Sun 3/506:00
LHR
-
ANC
2 stops27h 35m
Multiple Airlines
Sat 9/500:59
ANC
-
LHR
2 stops24h 11m
Multiple Airlines
Deal found 19/3£658
Fri 17/407:25
LHR
-
ANC
2 stops26h 02m
Multiple Airlines
Fri 24/423:45
ANC
-
LHR
1 stop25h 25m
Multiple Airlines
Deal found 18/3£659
Thu 30/406:00
LHR
-
ANC
2 stops27h 35m
Multiple Airlines
Wed 6/501:30
ANC
-
LHR
2 stops23h 40m
Multiple Airlines
Deal found 16/3£683
Fri 1/508:20
LHR
-
ANC
2 stops24h 24m
Multiple Airlines
Fri 8/506:00
ANC
-
LHR
2 stops24h 05m
Multiple Airlines
Deal found 17/3£684
Sat 16/508:30
LHR
-
ANC
1 stop15h 20m
Multiple Airlines
Sat 23/516:50
ANC
-
LHR
1 stop18h 50m
Multiple Airlines
Deal found 17/3£708
Thu 30/413:00
LGW
-
ANC
2 stops18h 43m
Icelandair
Thu 7/513:22
ANC
-
LGW
2 stops16h 18m
Icelandair
Deal found 16/3£710
Thu 30/413:05
LHR
-
ANC
2 stops18h 38m
Icelandair
Thu 7/513:22
ANC
-
LHR
2 stops21h 58m
Icelandair
Deal found 16/3£711
Tue 1/915:40
LGW
-
ANC
2 stops41h 47m
Multiple Airlines
Tue 8/905:00
ANC
-
LGW
2 stops24h 40m
Multiple Airlines
Deal found 19/3£714

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 20 March 2026.

Round-trip from

£572

One-way from

£345

Popular in

March

Cheapest in

October

Average price

£1,294
Condor
  • Condor
  • 16/5-23/5
  • 2 total stops
  • 26h 20m total
  • London to Alaska
16/5
  • 16/5
  • 3 total stops
  • 59h 16m total
  • London to Alaska
High demand for flights, 4% potential price rise
Cheapest flight prices on average. 3% potential price decrease (£24 potential savings vs. average return price).
Average for round-trip flights in March 2026

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 20 March 2026.
Use the filters below to find and compare flights from London to Alaska that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Thu 30/4

13:00-22:43

2 stops18h 43m

Anchorage

Mon 4/5

13:22-14:40

2 stops16h 18m

£776

LondonAnchorage

LCY - ANC

LCYANC

London City

Fri 15/5

18:30-14:50

1 stop29h 20m

Anchorage

Sat 23/5

16:50-17:55

1 stop16h 05m

£797

LondonFairbanks

LGW - FAI

LGWFAI

London Gatwick

Sat 2/5

15:40-01:42

2 stops19h 02m

Fairbanks

Sat 9/5

12:11-14:40

2 stops17h 29m

£815

LondonFairbanks

LGW - FAI

LGWFAI

London Gatwick

Fri 1/5

15:40-01:42

2 stops19h 02m

Fairbanks

Thu 7/5

01:17-11:45

2 stops49h 28m

£818

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 3/5

15:40-01:36

2 stops18h 56m

Anchorage

Sun 10/5

08:00-14:40

2 stops21h 40m

£821

LondonFairbanks

LGW - FAI

LGWFAI

London Gatwick

Mon 13/4

15:40-22:35

2 stops39h 55m

Fairbanks

Mon 20/4

15:53-14:40

2 stops37h 47m

£823
Fastest return journey

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sat 5/9

10:20-14:50

1 stop13h 30m

Anchorage

Sun 20/9

09:00-14:40

2 stops20h 40m

£823

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Tue 1/9

10:20-19:55

2 stops18h 35m

Anchorage

Fri 11/9

11:41-14:40

2 stops17h 59m

£880

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Wed 17/6

10:50-02:43

2 stops24h 53m

Anchorage

Thu 2/7

23:31-10:55

1 stop26h 24m

£884

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Wed 17/6

15:35-14:50

1 stop32h 15m

Anchorage

Thu 2/7

17:05-14:40

1 stop12h 35m

£887

Flights are sorted by cheapest return flights first.

Deals found on 19/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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 £659). Flying from London to Alaska in March is currently the most expensive (average of £1,232). 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.

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 20 March 2026.
See what other customers who have flown with Alaska Airlines,Virgin Atlantic, 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.

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

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 15h 36m. Fly via Icelandair, Condor, or Alaska Airlines 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 cheapest airlines to fly from London to Alaska one-way?

    The cheapest airline one-way is Virgin Atlantic, with whom users have recently found tickets for as low as £405. However, be on the lookout for offers from Air Canada and British Airways, 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, September is the cheapest month in which you can book a flight from London to Alaska (average of £659). Flying from London to Alaska in March is currently the most expensive (average of £1,232). 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 5 airlines flying from London to Alaska

Discover the top 5 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 20 March 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£659Average£762FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£671Average£724FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£781Average£1,163FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£809Average£1,331FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£1,082Average£1,245FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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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