What is the cheapest airline that flies from London to Alaska?

WestJet, Icelandair, and British Airways are the most popular carriers operating from London to Alaska

When did momondo last update prices for flights from London to Alaska?

Prices for flights from London to Alaska refresh daily.

How many operators does momondo search for flights from London to Alaska?

The number of operators available for flights from London to Alaska is 1 as of August 2025.

How old do you have to be to fly from London to Alaska?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Alaska.

What documentation or ID do you need to fly to Alaska?

The required travel and health documents for your Alaska trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Alaska. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$567 Cheap Flights from London to Alaska in 2025

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Find the cheapest flights from London to Alaska

Round-trip

One-way

Last minute

Cheap round-trip flights

10:55 am - 12:22 amLGW-ANC

22h 27m1 stop

12:24 am - 10:55 amANC-LGW

25h 31m1 stop

$809

Find Deal

Sun, Oct 5 - Sat, Oct 11

10:55 am - 12:22 amLGW-ANC

22h 27m1 stop

12:34 am - 10:55 amANC-LGW

25h 21m2 stops

$810

Find Deal

Sun, Oct 5 - Sat, Oct 11

10:55 am - 12:34 amLGW-ANC

22h 39m1 stop

1:59 am - 10:55 amANC-LGW

23h 56m2 stops

$814

Find Deal

Sun, Sep 14 - Sat, Sep 20

7:05 am - 1:59 amLHR-ANC

27h 54m3 stops

6:00 am - 4:00 pmANC-LHR

25h 00m2 stops

$840Scandinavian Airlines

Find Deal

Wed, Oct 8 - Wed, Oct 22

7:05 am - 1:59 amLHR-ANC

27h 54m3 stops

6:00 am - 6:30 pmANC-LHR

27h 30m3 stops

$846Scandinavian Airlines

Find Deal

Wed, Oct 8 - Wed, Oct 22

3:40 pm - 1:59 amLGW-ANC

19h 19m2 stops

1:10 pm - 2:40 pmANC-LGW

16h 30m2 stops

$849Icelandair

Find Deal

Sun, Oct 5 - Sat, Oct 11

3:40 pm - 10:45 pmLGW-ANC

40h 05m2 stops

1:10 pm - 2:40 pmANC-LGW

16h 30m2 stops

$855Icelandair

Find Deal

Sun, Oct 5 - Sat, Oct 11

6:30 am - 7:48 pmLHR-FAI

22h 18m2 stops

8:53 pm - 6:20 amFAI-LHR

24h 27m1 stop

$1,425United Airlines

Find Deal

Mon, Sep 15 - Mon, Sep 22

11:05 am - 7:48 pmLHR-FAI

41h 43m2 stops

11:23 pm - 6:20 amFAI-LHR

21h 57m2 stops

$1,471United Airlines

Find Deal

Sun, Sep 14 - Sun, Sep 21

8:45 am - 10:51 pmLCY-ANC

23h 06m2 stops

2:11 pm - 4:25 pmANC-LCY

41h 14m2 stops

$1,473Lufthansa

Find Deal

Mon, Sep 15 - Mon, Sep 22

Icelandair flights from London to Alaska

Our best Icelandair deals on London to Alaska flight tickets

Icelandair

Oct 5

LGW3:40 pmLondon Gatwick

19h 19m

2 stops

ANC1:59 amAnchorage

Oct 11

ANC1:10 pmAnchorage

16h 30m

2 stops

LGW2:40 pmLondon Gatwick

$849

Find similar

Icelandair

Oct 5

LGW3:40 pmLondon Gatwick

40h 05m

2 stops

ANC10:45 pmAnchorage

Oct 11

ANC1:10 pmAnchorage

16h 30m

2 stops

LGW2:40 pmLondon Gatwick

$855

Find similar

Icelandair

Sep 15

LHR9:25 pmLondon Heathrow

37h 18m

2 stops

ANC1:43 amAnchorage

Sep 22

ANC1:25 pmAnchorage

21h 55m

2 stops

LHR8:20 pmLondon Heathrow

$867

Find similar

Scandinavian Airlines flights from London to Alaska

Our best Scandinavian Airlines deals on London to Alaska flight tickets

Scandinavian Airlines

Oct 8

LHR7:05 amLondon Heathrow

27h 54m

3 stops

ANC1:59 amAnchorage

Oct 22

ANC6:00 amAnchorage

25h 00m

2 stops

LHR4:00 pmLondon Heathrow

$840

Find similar

Scandinavian Airlines

Oct 8

LHR7:05 amLondon Heathrow

27h 54m

3 stops

ANC1:59 amAnchorage

Oct 22

ANC6:00 amAnchorage

27h 30m

3 stops

LHR6:30 pmLondon Heathrow

$846

Find similar

Scandinavian Airlines

Sep 5

LHR6:40 amLondon Heathrow

22h 37m

2 stops

ANC8:17 pmAnchorage

Sep 21

ANC6:00 amAnchorage

27h 30m

2 stops

LHR6:30 pmLondon Heathrow

$855

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 10/5

10:55 am-12:22 am

1 stop22h 27m

Anchorage

Sat 10/11

12:24 am-10:55 am

1 stop25h 31m

$809

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 10/5

10:55 am-12:22 am

1 stop22h 27m

Anchorage

Sat 10/11

12:34 am-10:55 am

2 stops25h 21m

$810

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 9/14

10:55 am-12:34 am

1 stop22h 39m

Anchorage

Sat 9/20

1:59 am-10:55 am

2 stops23h 56m

$814

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 10/8

7:05 am-1:59 am

3 stops27h 54m

Anchorage

Wed 10/22

6:00 am-4:00 pm

2 stops25h 00m

$840

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 10/8

7:05 am-1:59 am

3 stops27h 54m

Anchorage

Wed 10/22

6:00 am-6:30 pm

3 stops27h 30m

$846

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 10/5

3:40 pm-1:59 am

2 stops19h 19m

Anchorage

Sat 10/11

1:10 pm-2:40 pm

2 stops16h 30m

$849

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Sun 10/5

3:40 pm-10:45 pm

2 stops40h 05m

Anchorage

Sat 10/11

1:10 pm-2:40 pm

2 stops16h 30m

$855

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Mon 9/15

6:30 am-7:48 pm

2 stops22h 18m

Fairbanks

Mon 9/22

8:53 pm-6:20 am

1 stop24h 27m

$1,425

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Sun 9/14

11:05 am-7:48 pm

2 stops41h 43m

Fairbanks

Sun 9/21

11:23 pm-6:20 am

2 stops21h 57m

$1,471

LondonAnchorage

LCY - ANC

LCYANC

London City

Mon 9/15

8:45 am-10:51 pm

2 stops23h 06m

Anchorage

Mon 9/22

2:11 pm-4:25 pm

2 stops41h 14m

$1,473

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Alaska

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Alaska?

If you don’t want to visit Alaska in April, then you should wait until February to fly from London, when ticket prices are also cheap, with an average price of $1,070.

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

You are more likely to see cheaper flights to Alaska from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Alaska for around $1,506 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Alaska from London for as low as $1,055 on momondo.

Can stopping save me money on London to Alaska flights?

You could potentially save up to 10% on your flight if you consider stops on a London to Alaska flight.

Cheap London to Alaska flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Alaska

Best Price Found	$567
Fastest flight time	13h 05m
Direct flights	None
Airports in Alaska	2 airports

The best one-way flight to Alaska from London in the past 72 hours is $567. The best round-trip flight deal from London to Alaska found on momondo in the last 72 hours is $809.

The fastest flight from London to Alaska takes 13h 05m

There are no direct flights from London to Alaska. Popular non-direct routes for this connection are London City Airport - Anchorage Airport, London Gatwick Airport - Anchorage Airport and London Heathrow Airport - Anchorage Airport.

There are 2 airports near Alaska: Anchorage (ANC), Fairbanks (FAI)

Search flight deals

When did momondo last update prices for flights from London to Alaska?
Prices for flights from London to Alaska refresh daily.
How many operators does momondo search for flights from London to Alaska?
The number of operators available for flights from London to Alaska is 1 as of August 2025.
How old do you have to be to fly from London to Alaska?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Alaska.
What documentation or ID do you need to fly to Alaska?
The required travel and health documents for your Alaska trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Alaska. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from London to Alaska

Compare and see reviews for airlines that fly from London to Alaska with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $1,401	Free Cancellation	Rating 8.0 7,983 reviews		Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Alaska?

Finding the right flight to Alaska from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Alaska quick and easy, saving you time and money.

Can I find flights from London to Alaska with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Alaska flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Alaska?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Alaska from London.

I’m not ready to book a flight from London to Alaska right now. Can momondo alert me if prices change?

Price alerts on flights to Alaska from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.