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.

In terms of precipitation, rainfall in Alaska ranges from 13.0 - 84.0 inches per month. August is typically the wettest month, when rainfall can reach 84.0 mm. April is typically the driest time to visit Alaska when rainfall is around 13.0 mm.

If weather is an important factor for your trip to Alaska, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 15.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -8.0 C).

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.

What are the most popular airlines that fly from London to Alaska?

British Airways, Icelandair and Lufthansa are the most popular airlines when flying from London to Alaska.

How far in advance should I book a flight from London to Alaska?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 35% on flights from London to Alaska compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £913. For sooner than that we have options available in the next 3 days from £1,372.

What is the cheapest month to fly from London to Alaska?

February is one of the best times of the year to fly to Alaska from London. Prices for February average £1,007 per person but you can even find prices for as low as £616. The most expensive prices can be found in the month of July. Opting for a February flight can save you 23% on your journey compared to booking in July

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.

£513+ Flights from London to Alaska

Cheap flight deals from London to Alaska

Round-trip from	£687
One-way from	£513
Popular in	July
Cheapest in	February
Average price	£1,240

23/8-31/8
2 total stops
52h 30m total
London to Alaska

Search Deals

17/8
1 total stop
33h 21m total
London to Alaska

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£137 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 July 2025

Search Deals

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

Best flights from London to Alaska
Discover carefully curated flight deals from London to Alaska that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 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

Sat 30/815:40LGW - ANC

2 stops39h 36mIcelandair

Wed 10/917:59ANC - LGW

2 stops35h 41mIcelandair

Deal found 1/7£716

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

Wed 1/1010:00LCY - ANC

2 stops19h 19mKLM

Wed 15/1006:10ANC - LCY

2 stops17h 00mKLM

Deal found 2/7£1,185

Mon 25/815:40LGW - ANC

2 stops44h 07mMultiple Airlines

Mon 1/923:25ANC - LGW

2 stops30h 15mMultiple Airlines

Deal found 3/7£689

Mon 25/821:25LHR - ANC

2 stops36h 32mIcelandair

Mon 1/917:59ANC - LHR

2 stops32h 56mIcelandair

Deal found 3/7£723

Thu 14/813:00LGW - FAI

2 stops18h 36mMultiple Airlines

Wed 29/1002:15FAI - LGW

2 stops24h 40mMultiple Airlines

Deal found 1/7£702

Fri 17/1010:20LHR - FAI

3 stops25h 15mMultiple Airlines

Mon 20/1006:00FAI - LHR

3 stops26h 40mMultiple Airlines

Deal found 3/7£767

Sat 6/921:25LHR - FAI

2 stops34h 22mIcelandair

Sat 27/915:59FAI - LHR

2 stops34h 56mIcelandair

Deal found 2/7£898

Thu 21/808:45LCY - ANC

1 stop15h 25mMultiple Airlines

Sat 6/918:15ANC - LCY

1 stop14h 00mMultiple Airlines

Deal found 1/7£779

Last-minute flights from London to Alaska
Discover last-minute flight deals from London to Alaska. Data last updated 4 July 2025 and is based on user searches.

Tue 8/708:30LHR - ANC

1 stop14h 50mMultiple Airlines

Tue 15/716:20ANC - LHR

1 stop16h 20mMultiple Airlines

Deal found 2/7£843

Tue 8/708:45LCY - ANC

1 stop14h 35mMultiple Airlines

Tue 15/716:20ANC - LCY

1 stop17h 15mMultiple Airlines

Deal found 2/7£867

Tue 8/707:40LGW - ANC

3 stops41h 07mMultiple Airlines

Tue 15/720:55ANC - LGW

2 stops24h 25mMultiple Airlines

Deal found 2/7£921

Thu 31/721:25LHR - FAI

2 stops34h 11mIcelandair

Wed 6/802:09FAI - LHR

2 stops24h 46mIcelandair

Deal found 3/7£937

Thu 14/813:00LGW - FAI

2 stops18h 36mMultiple Airlines

Wed 29/1002:15FAI - LGW

2 stops24h 40mMultiple Airlines

Deal found 1/7£702

Thu 14/809:30LHR - FAI

2 stops26h 06mMultiple Airlines

Wed 29/1002:15FAI - LHR

2 stops25h 35mMultiple Airlines

Deal found 1/7£826

Thu 14/820:10LCY - FAI

2 stops33h 45mVirgin Atlantic

Wed 20/801:50FAI - LCY

2 stops32h 50mVirgin Atlantic

Deal found 3/7£1,230

Sat 16/806:40LHR - ANC

2 stops22h 40mScandinavian Airlines

Sat 23/806:00ANC - LHR

3 stops26h 40mScandinavian Airlines

Deal found 1/7£848

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 21/808:45LCY - ANC

1 stop15h 25mMultiple Airlines

Sat 6/918:15ANC - LCY

1 stop14h 00mMultiple Airlines

Deal found 1/7£779

Sat 23/813:35LHR - ANC

1 stop19h 59mMultiple Airlines

Sun 31/823:44ANC - LHR

1 stop32h 31mMultiple Airlines

Deal found 3/7£687

Mon 25/815:40LGW - ANC

2 stops44h 07mMultiple Airlines

Mon 1/923:25ANC - LGW

2 stops30h 15mMultiple Airlines

Deal found 3/7£689

One-way flights from London to Alaska
Search for one-way flight options from London to Alaska. Find affordable one-way fares based on user searches. Data last updated 4 July 2025.

Sun 17/813:05LGW - ANC

1 stop33h 21mMultiple Airlines

Deal found 2/7£513

Thu 9/1014:10LHR - ANC

2 stops20h 35mWestJet

Deal found 1/7£570

Thu 9/1008:20LHR - ANC

1 stop19h 24mBritish Airways

Deal found 2/7£713

Thu 9/1008:20LHR - ANC

1 stop19h 24mMultiple Airlines

Deal found 3/7£714

Thu 9/1015:40LGW - ANC

2 stops19h 19mIcelandair

Deal found 2/7£722

Thu 9/1013:05LHR - ANC

2 stops18h 40mIcelandair

Deal found 2/7£725

Thu 9/1008:45LCY - ANC

2 stops22h 57mLufthansa

Deal found 3/7£1,002

Thu 10/708:45LCY - ANC

1 stop15h 25mMultiple Airlines

Deal found 1/7£2,062

Sun 17/810:20LHR - ANC

3 stops24h 12mScandinavian Airlines

Deal found 2/7£2,232

Thu 10/709:20LCY - ANC

2 stops19h 46mDelta

Deal found 3/7£2,389

Cheapflights Fare Finder

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

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

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?

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

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.

Delta

8.0

Very Good

7,982 reviews

Check prices

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!

Delta

8.0

Very Good

7,982 reviews

Delta

8.0

Very Good

7,982 reviews

Check prices

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!

KLM

7.8

Good

1,367 reviews

Delta

8.0

Very Good

7,982 reviews

Check prices

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!

Virgin Atlantic

7.4

Good

652 reviews

Delta

8.0

Very Good

7,982 reviews

Check prices

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!

Scandinavian Airlines

7.3

Good

1,410 reviews

Delta

8.0

Very Good

7,982 reviews

Check prices

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!

WestJet

7.2

Good

2,915 reviews

Delta

8.0

Very Good

7,982 reviews

Check prices

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

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?
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, 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

Alternative routes for London to Alaska

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Complete your trip

Alaska car hire

Anchorage Airport car hire

Fairbanks Airport car hire

Juneau Intl Airport car hire

Ketchikan Airport car hire

Sitka Airport car hire

Kenai Airport car hire

Petersburg Airport car hire

Valdez Airport car hire

Kotzebue Ralph Wien Airport car hire

Anchorage car hire

Fairbanks car hire

Direct flights to United States

Top 6 airlines flying from London to Alaska

Airline	Cheapest	Average	Flexibility	On-time
Scandinavian Airlines	Cheapest£528	Average£737	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Icelandair	Cheapest£621	Average£832	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£684	Average£1,168	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£736	Average£1,167	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Virgin Atlantic	Cheapest£1,025	Average£1,178	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£1,049	Average£1,248	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

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.

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

One-way from

Popular in

Cheapest in

Average price

Find flight deals from London to Alaska

Cheapest flights from London to AlaskaExplore 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.

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.

Cheapflights Fare Finder

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

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.

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?

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.

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.

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?

What are the most popular routes from London to Alaska?

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

How can I find direct flights from London to Alaska?

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

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

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.

Top 6 airlines flying from London to Alaska

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?

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

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

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

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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.