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 £634. However, be on the lookout for offers from Icelandair 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.

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

British Airways, Icelandair and United Airlines 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 35 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 35 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 £942. For sooner than that we have options available in the next 3 days from £1,412.

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 £1,047 per person but you can even find prices for as low as £649. The most expensive prices can be found in the month of July. Opting for a February flight can save you 33% 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.

£444+ Flights from London to Alaska

Cheap flight deals from London to Alaska

Round-trip from	£751
One-way from	£444
Popular in	July
Cheapest in	February
Average price	£1,090

Icelandair
22/4-29/4
4 total stops
75h 02m total
London to Alaska

Search Deals

15/6
3 total stops
34h 27m total
London to Alaska

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£180 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£25 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 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 20 March 2025.

Tue 22/421:25LHR - ANC

2 stops58h 07mIcelandair

Tue 29/410:00ANC - LHR

2 stops16h 55mIcelandair

Deal found 18/3£751

Sat 3/521:25LHR - ANC

2 stops34h 07mMultiple Airlines

Fri 9/502:31ANC - LHR

2 stops24h 24mMultiple Airlines

Deal found 19/3£766

Tue 22/409:25LHR - ANC

1 stop22h 07mBritish Airways

Tue 29/409:05ANC - LHR

1 stop18h 55mBritish Airways

Deal found 18/3£779

Fri 23/506:40LHR - ANC

2 stops27h 52mScandinavian Airlines

Sun 1/606:05ANC - LHR

2 stops26h 35mScandinavian Airlines

Deal found 19/3£783

Sat 3/515:40LGW - ANC

2 stops39h 52mIcelandair

Sat 10/512:20ANC - LGW

2 stops17h 20mIcelandair

Deal found 19/3£786

Fri 30/510:55LGW - ANC

1 stop22h 25mMultiple Airlines

Sun 29/600:34ANC - LGW

1 stop25h 21mMultiple Airlines

Deal found 20/3£793

Sun 4/506:15LHR - FAI

2 stops23h 29mMultiple Airlines

Sun 11/506:00FAI - LHR

2 stops39h 45mMultiple Airlines

Deal found 20/3£862

Tue 2/915:40LGW - FAI

2 stops20h 00mMultiple Airlines

Sat 6/901:18FAI - LGW

2 stops28h 22mMultiple Airlines

Deal found 19/3£869

Tue 2/919:10LCY - FAI

2 stops33h 44mMultiple Airlines

Sat 6/901:18FAI - LCY

2 stops30h 07mMultiple Airlines

Deal found 19/3£992

Mon 21/411:05LHR - ANC

1 stop17h 16mLufthansa

Mon 28/420:30ANC - LHR

1 stop24h 50mLufthansa

Deal found 20/3£1,027

Sun 4/519:45LHR - FAI

2 stops37h 21mVirgin Atlantic

Sat 10/501:45FAI - LHR

2 stops47h 45mVirgin Atlantic

Deal found 20/3£1,096

Thu 1/508:45LCY - ANC

2 stops21h 50mMultiple Airlines

Mon 12/500:37ANC - LCY

2 stops32h 58mMultiple Airlines

Deal found 20/3£1,101

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 20 March 2025.

Tue 22/421:25LHR - ANC

2 stops58h 07mIcelandair

Tue 29/410:00ANC - LHR

2 stops16h 55mIcelandair

Deal found 18/3£751

Sat 3/521:25LHR - ANC

2 stops34h 07mMultiple Airlines

Fri 9/502:31ANC - LHR

2 stops24h 24mMultiple Airlines

Deal found 19/3£766

Tue 22/409:25LHR - ANC

1 stop22h 07mBritish Airways

Tue 29/409:05ANC - LHR

1 stop18h 55mBritish Airways

Deal found 18/3£779

Fri 23/506:40LHR - ANC

2 stops27h 52mScandinavian Airlines

Sun 1/606:05ANC - LHR

2 stops26h 35mScandinavian Airlines

Deal found 19/3£783

Mon 21/411:25LHR - ANC

1 stop20h 12mLufthansa

Mon 28/423:44ANC - LHR

2 stops25h 56mLufthansa

Deal found 20/3£1,027

Sun 4/519:45LHR - FAI

2 stops37h 21mVirgin Atlantic

Sat 10/501:45FAI - LHR

2 stops47h 45mVirgin Atlantic

Deal found 20/3£1,096

Tue 22/409:55LHR - ANC

2 stops23h 21mKLM

Mon 28/401:26ANC - LHR

1 stop27h 49mKLM

Deal found 18/3£1,107

Sun 4/506:50LHR - ANC

2 stops21h 50mUnited Airlines

Sun 11/523:59ANC - LHR

1 stop21h 21mUnited Airlines

Deal found 20/3£1,117

Mon 21/417:25LHR - ANC

1 stop15h 51mDelta

Sun 27/401:26ANC - LHR

2 stops20h 49mDelta

Deal found 19/3£1,134

Fri 30/514:10LHR - ANC

1 stop34h 27mAir Canada

Mon 30/616:40ANC - LHR

2 stops19h 20mAir Canada

Deal found 20/3£1,159

Sat 6/914:10LHR - ANC

1 stop33h 48mWestJet

Fri 12/900:40ANC - LHR

2 stops26h 25mWestJet

Deal found 20/3£1,469

Mon 16/609:50LHR - ANC

1 stop19h 47mFinnair

Fri 20/606:09ANC - LHR

1 stop17h 51mFinnair

Deal found 19/3£1,556

Last-minute flights from London to Alaska
Discover last-minute flight deals from London to Alaska. Data last updated 20 March 2025 and is based on user searches.

Thu 20/312:40LHR - ANC

1 stop19h 19mVirgin Atlantic

Thu 27/305:55ANC - LHR

1 stop21h 15mVirgin Atlantic

Deal found 19/3£1,460

Fri 21/305:55LGW - ANC

2 stops25h 43mMultiple Airlines

Sat 29/306:00ANC - LGW

2 stops31h 25mMultiple Airlines

Deal found 20/3£1,392

Thu 3/413:25LHR - FAI

1 stop19h 07mMultiple Airlines

Wed 16/401:45FAI - LHR

1 stop24h 35mMultiple Airlines

Deal found 19/3£1,077

Thu 17/411:25LHR - ANC

1 stop20h 12mUnited Airlines

Mon 21/423:44ANC - LHR

2 stops45h 51mUnited Airlines

Deal found 19/3£1,256

Mon 21/411:05LHR - ANC

1 stop17h 16mLufthansa

Mon 28/420:30ANC - LHR

1 stop24h 50mLufthansa

Deal found 20/3£1,027

Mon 21/417:25LHR - ANC

1 stop15h 51mDelta

Sun 27/401:26ANC - LHR

2 stops20h 49mDelta

Deal found 19/3£1,134

Tue 22/421:25LHR - ANC

2 stops58h 07mIcelandair

Tue 29/410:00ANC - LHR

2 stops16h 55mIcelandair

Deal found 18/3£751

Tue 22/421:25LHR - ANC

2 stops58h 07mMultiple Airlines

Mon 28/402:31ANC - LHR

2 stops24h 24mMultiple Airlines

Deal found 18/3£779

Tue 22/409:25LHR - ANC

1 stop22h 07mBritish Airways

Tue 29/409:05ANC - LHR

1 stop18h 55mBritish Airways

Deal found 18/3£779

Tue 22/409:55LHR - ANC

2 stops23h 21mKLM

Mon 28/401:26ANC - LHR

1 stop27h 49mKLM

Deal found 18/3£1,107

Tue 22/410:00LCY - ANC

2 stops23h 16mKLM

Tue 29/405:55ANC - LCY

2 stops25h 45mKLM

Deal found 18/3£1,124

Tue 22/419:20LCY - ANC

2 stops33h 01mMultiple Airlines

Tue 29/423:44ANC - LCY

3 stops27h 46mMultiple Airlines

Deal found 18/3£1,361

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 20 March 2025.

Sun 15/614:10LHR - ANC

3 stops34h 27mMultiple Airlines

Deal found 19/3£444

Wed 18/620:55LGW - ANC

3 stops36h 55mMultiple Airlines

Deal found 19/3£445

Tue 17/608:30LCY - ANC

3 stops25h 20mMultiple Airlines

Deal found 19/3£554

Thu 5/614:10LHR - ANC

2 stops20h 22mWestJet

Deal found 20/3£634

Thu 5/621:25LHR - ANC

2 stops37h 06mIcelandair

Deal found 19/3£756

Sun 15/612:15LHR - ANC

1 stop17h 25mBritish Airways

Deal found 19/3£977

Sun 8/613:00LGW - ANC

2 stops21h 31mIcelandair

Deal found 20/3£1,076

Fri 20/610:30LHR - ANC

1 stop21h 13mFinnair

Deal found 20/3£1,356

Wed 18/608:45LCY - ANC

1 stop13h 05mLufthansa

Deal found 19/3£1,540

Mon 9/614:10LHR - ANC

1 stop34h 27mUnited Airlines

Deal found 20/3£1,587

Tue 10/619:20LCY - ANC

2 stops26h 30mSWISS

Deal found 20/3£1,624

Sun 8/613:45LCY - ANC

2 stops35h 26mDelta

Deal found 20/3£1,634

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

Tue 22/4

21:25-22:32

2 stops58h 07m

Anchorage

Tue 29/4

10:00-11:55

2 stops16h 55m

£751

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sat 3/5

21:25-22:32

2 stops34h 07m

Anchorage

Fri 9/5

02:31-11:55

2 stops24h 24m

£766

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 22/4

09:25-22:32

1 stop22h 07m

Anchorage

Tue 29/4

09:05-13:00

1 stop18h 55m

£779

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 23/5

06:40-01:32

2 stops27h 52m

Anchorage

Sun 1/6

06:05-17:40

2 stops26h 35m

£783

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sat 3/5

15:40-22:32

2 stops39h 52m

Anchorage

Sat 10/5

12:20-14:40

2 stops17h 20m

£786

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Fri 30/5

10:55-00:20

1 stop22h 25m

Anchorage

Sun 29/6

00:34-10:55

1 stop25h 21m

£793

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Sun 4/5

06:15-20:44

2 stops23h 29m

Fairbanks

Sun 11/5

06:00-06:45

2 stops39h 45m

£862

LondonFairbanks

LGW - FAI

LGWFAI

London Gatwick

Tue 2/9

15:40-02:40

2 stops20h 00m

Fairbanks

Sat 6/9

01:18-14:40

2 stops28h 22m

£869

LondonFairbanks

LCY - FAI

LCYFAI

London City

Tue 2/9

19:10-19:54

2 stops33h 44m

Fairbanks

Sat 6/9

01:18-16:25

2 stops30h 07m

£992

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 21/4

11:05-19:21

1 stop17h 16m

Anchorage

Mon 28/4

20:30-06:20

1 stop24h 50m

£1,027

Flights are sorted by cheapest return flights first.

Deals found on 19/3

Showing 1-10 of 41 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 £1,796). 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.

Rainfall in Alaska by month

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.

Temperature in Alaska by month

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).

Reviews of airlines servicing Alaska

See what other customers who have flown with Delta, KLM and Finnair from London to Alaska have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,896 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,896 reviews

Delta

8.0

Very Good

7,896 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,319 reviews

Delta

8.0

Very Good

7,896 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,266 reviews

Delta

8.0

Very Good

7,896 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,567 reviews

Delta

8.0

Very Good

7,896 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,609 reviews

Delta

8.0

Very Good

7,896 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 £634. However, be on the lookout for offers from Icelandair 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, 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 £1,796). 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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London City to Boston flights

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Heathrow to Raleigh flights

Stansted to Boston flights

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 4 airlines flying from London to Alaska

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£652	Average£789	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£734	Average£1,228	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£1,004	Average£1,276	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£1,151	Average£1,298	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 £444

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 15/6. 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 20 March 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 20 March 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 20 March 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 20 March 2025.

Rainfall in Alaska by month

Plan your trip to Alaska by taking into account the average rainfall totals by month.

Temperature in Alaska by month

Plan your trip to Alaska by taking into account the average temperature totals by month.

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 2025.

See what other customers who have flown with Delta, KLM and Finnair from London to Alaska have to say. Reviews also offer insight into each airline's 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 4 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 20 March 2025.