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Cheap flights from London to Alaska from £373

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ANC
13 Aug — 20 Aug1
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 14 July 2026.

Mon 31/810:20
LGW
-
ANC
1 stop13h 45m
Condor
Mon 7/917:05
ANC
-
LGW
1 stop16h 45m
Condor
Deal found 14/7£577
Tue 22/906:40
LHR
-
ANC
2 stops26h 52m
Scandinavian Airlines
Fri 25/906:12
ANC
-
LHR
2 stops22h 23m
Scandinavian Airlines
Deal found 9/7£581
Sat 5/906:40
LHR
-
ANC
2 stops26h 18m
Scandinavian Airlines
Sat 19/908:00
ANC
-
LHR
3 stops23h 25m
Scandinavian Airlines
Deal found 10/7£585
Thu 20/810:20
LGW
-
ANC
1 stop13h 30m
Condor
Mon 31/817:05
ANC
-
LGW
1 stop16h 45m
Condor
Deal found 12/7£591
Sat 26/906:40
LHR
-
ANC
2 stops26h 52m
Scandinavian Airlines
Sat 3/1008:00
ANC
-
LHR
2 stops24h 40m
Scandinavian Airlines
Deal found 14/7£596
Sat 22/810:20
LGW
-
ANC
1 stop13h 30m
Condor
Mon 31/817:05
ANC
-
LGW
1 stop16h 45m
Condor
Deal found 13/7£602
Mon 31/810:20
LGW
-
ANC
1 stop13h 45m
Multiple Airlines
Mon 7/905:00
ANC
-
LGW
2 stops28h 50m
Multiple Airlines
Deal found 14/7£739
Sat 8/806:40
LHR
-
ANC
2 stops22h 28m
Scandinavian Airlines
Sun 23/808:15
ANC
-
LHR
2 stops22h 45m
Scandinavian Airlines
Deal found 9/7£766
Mon 10/810:20
LGW
-
ANC
1 stop13h 45m
Condor
Mon 17/817:05
ANC
-
LGW
1 stop16h 45m
Condor
Deal found 11/7£791
Mon 24/810:20
LGW
-
FAI
2 stops20h 01m
Multiple Airlines
Mon 31/813:49
FAI
-
LGW
2 stops20h 01m
Multiple Airlines
Deal found 12/7£792
Mon 2/1110:25
LGW
-
ANC
2 stops20h 25m
Multiple Airlines
Mon 23/1110:14
ANC
-
LGW
2 stops24h 06m
Multiple Airlines
Deal found 9/7£802
Sat 22/810:20
LGW
-
ANC
1 stop13h 30m
Multiple Airlines
Mon 31/805:00
ANC
-
LGW
2 stops28h 50m
Multiple Airlines
Deal found 13/7£837

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 14 July 2026.

Round-trip from

£577

One-way from

£373

Popular in

December

Cheapest in

January

Average price

£1,194
Condor
  • Condor
  • 31/8-7/9
  • 2 total stops
  • 30h 30m total
  • London to Alaska
Search Deals
5/9
  • 5/9
  • 2 total stops
  • 33h 10m total
  • London to Alaska
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 14 July 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

LHR - ANC

LHRANC

London Heathrow

Tue 22/9

06:40-00:32

2 stops26h 52m

Anchorage

Fri 25/9

06:12-13:35

2 stops22h 23m

£581

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sat 5/9

06:40-23:58

2 stops26h 18m

Anchorage

Sat 19/9

08:00-16:25

3 stops23h 25m

£585

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Mon 31/8

10:20-15:05

1 stop13h 45m

Anchorage

Mon 7/9

05:00-18:50

2 stops28h 50m

£739

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Mon 10/8

10:20-15:05

1 stop13h 45m

Anchorage

Mon 17/8

17:05-18:50

1 stop16h 45m

£791

LondonFairbanks

LGW - FAI

LGWFAI

London Gatwick

Mon 24/8

10:20-21:21

2 stops20h 01m

Fairbanks

Mon 31/8

13:49-18:50

2 stops20h 01m

£795

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Mon 2/11

10:25-21:50

2 stops20h 25m

Anchorage

Mon 23/11

10:14-19:20

2 stops24h 06m

£802

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sat 22/8

10:20-14:50

1 stop13h 30m

Anchorage

Mon 31/8

05:00-18:50

2 stops28h 50m

£837

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 31/8

13:05-22:45

2 stops18h 40m

Anchorage

Mon 7/9

06:07-11:55

2 stops20h 48m

£852

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Thu 20/8

10:20-20:45

2 stops19h 25m

Anchorage

Mon 31/8

17:05-18:50

1 stop16h 45m

£852

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sat 22/8

10:20-21:45

2 stops20h 25m

Anchorage

Mon 31/8

17:05-18:50

1 stop16h 45m

£864

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Showing 1-10 of 59 resultsSorted by cheapest first
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2
3
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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 £253). Flying from London to Alaska in December is currently the most expensive (average of £693). 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.

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 14 July 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.
Alaska Airlines
7.9
Good
12,656 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Alaska Airlines
7.9
Good
12,656 reviews
Alaska Airlines
7.9
Good
12,656 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Virgin Atlantic
7.5
Good
693 reviews
Alaska Airlines
7.9
Good
12,656 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Icelandair
7.0
Good
707 reviews
Alaska Airlines
7.9
Good
12,656 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
British Airways
6.7
Okay
8,116 reviews
Alaska Airlines
7.9
Good
12,656 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Condor
6.6
Okay
517 reviews
Alaska Airlines
7.9
Good
12,656 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

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 13h 45m. Fly via Scandinavian Airlines, Condor, or Alaska Airlines to get the fastest option. London and Alaska are separated by a distance of 4495 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 £404. 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?

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

  • 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 £253). Flying from London to Alaska in December is currently the most expensive (average of £693). 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.
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Top 2 airlines flying from London to Alaska

Discover the top 2 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 14 July 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£633Average£734FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
CondorCheapest£691Average£1,089FlexibilityNo cancel feeOn-time76%
Search Condor 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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