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

Icelandair is the most popular carrier 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 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.

$664 Cheap Flights from London to Alaska in 2026/27

Find the cheapest flights from London to Alaska

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 6:48 pmLHR London Heathrow-ANC Anchorage

21h 18m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

10:02 am - 10:40 amANC Anchorage-LHR London Heathrow

15h 38m1 stop Seattle/Tacoma Intl

$869Multiple Airlines

Fri, Nov 6 - Fri, Nov 13

2:45 pm - 11:44 pmLHR London Heathrow-ANC Anchorage

17h 59m1 stop Seattle/Tacoma Intl

6:45 am - 12:20 pmANC Anchorage-LHR London Heathrow

20h 35m1 stop Seattle/Tacoma Intl

$881Alaska Airlines

Sun, Nov 8 - Sun, Nov 15

12:20 pm - 12:52 amLHR London Heathrow-ANC Anchorage

21h 32m1 stop Seattle/Tacoma Intl

10:02 am - 10:40 amANC Anchorage-LHR London Heathrow

15h 38m1 stop Seattle/Tacoma Intl

$893Multiple Airlines

Fri, Nov 6 - Fri, Nov 13

12:20 pm - 8:51 pmLHR London Heathrow-ANC Anchorage

16h 31m1 stop Seattle/Tacoma Intl

5:47 am - 10:40 amANC Anchorage-LHR London Heathrow

19h 53m1 stop Seattle/Tacoma Intl

$900Multiple Airlines

Thu, Oct 29 - Sat, Nov 14

12:20 pm - 9:45 pmLHR London Heathrow-ANC Anchorage

18h 25m1 stop Seattle/Tacoma Intl

1:48 am - 10:40 amANC Anchorage-LHR London Heathrow

23h 52m1 stop Seattle/Tacoma Intl

$911Multiple Airlines

Sat, Nov 7 - Fri, Nov 13

11:40 am - 10:48 pmLHR London Heathrow-ANC Anchorage

20h 08m1 stop Seattle/Tacoma Intl

1:59 am - 10:40 amANC Anchorage-LHR London Heathrow

24h 41m1 stop Seattle/Tacoma Intl

$920Multiple Airlines

Tue, Oct 20 - Mon, Oct 26

6:30 am - 11:44 pmLHR London Heathrow-ANC Anchorage

26h 14m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

5:47 am - 10:40 amANC Anchorage-LHR London Heathrow

19h 53m1 stop Seattle/Tacoma Intl

$924Multiple Airlines

Sun, Nov 8 - Sun, Nov 15

8:55 am - 10:46 pmLHR London Heathrow-ANC Anchorage

22h 51m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

9:03 am - 10:40 amANC Anchorage-LHR London Heathrow

16h 37m1 stop Seattle/Tacoma Intl

$937Multiple Airlines

Sat, Nov 7 - Sat, Nov 14

5:45 pm - 8:49 amLHR London Heathrow-JNU Juneau Intl

24h 04m1 stop Seattle/Tacoma Intl

7:13 am - 10:40 amJNU Juneau Intl-LHR London Heathrow

19h 27m1 stop Seattle/Tacoma Intl

$951Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

12:15 pm - 10:46 pmLHR London Heathrow-ANC Anchorage

19h 31m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

5:28 pm - 10:50 amANC Anchorage-LHR London Heathrow

32h 22m2 stops Seattle/Tacoma Intl Reykjavik Keflavik Intl

$972Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

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Icelandair flights from London to Alaska

Our best Icelandair deals on London to Alaska flight tickets

Icelandair

Nov 5

LHR12:15 pmLondon Heathrow

18h 30m

2 stops

ANC9:45 pmAnchorage

Nov 10

ANC8:00 amAnchorage

17h 50m

2 stops

LHR10:50 amLondon Heathrow

$1,006

Icelandair

Oct 29

LHR12:15 pmLondon Heathrow

18h 33m

2 stops

ANC10:48 pmAnchorage

Nov 12

ANC8:00 amAnchorage

17h 50m

2 stops

LHR10:50 amLondon Heathrow

$1,034

Icelandair

Mar 4

LHR12:15 pmLondon Heathrow

18h 24m

2 stops

ANC9:39 pmAnchorage

Mar 8

ANC7:15 amAnchorage

27h 15m

2 stops

LHR7:30 pmLondon Heathrow

$1,073

Alaska Airlines flights from London to Alaska

Our best Alaska Airlines deals on London to Alaska flight tickets

Alaska Airlines

Nov 9

LHR2:45 pmLondon Heathrow

17h 01m

1 stop

ANC10:46 pmAnchorage

Nov 16

ANC6:45 amAnchorage

20h 35m

1 stop

LHR12:20 pmLondon Heathrow

$876

Alaska Airlines

Nov 8

LHR2:45 pmLondon Heathrow

17h 59m

1 stop

ANC11:44 pmAnchorage

Nov 15

ANC6:45 amAnchorage

20h 35m

1 stop

LHR12:20 pmLondon Heathrow

$881

Alaska Airlines

Nov 9

LHR2:45 pmLondon Heathrow

15h 52m

1 stop

JNU9:37 pmJuneau Intl

Nov 16

JNU7:04 amJuneau Intl

20h 16m

1 stop

LHR12:20 pmLondon Heathrow

$913

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Fri 11/6

6:30 am-6:48 pm

2 stops21h 18m

Anchorage

Fri 11/13

10:02 am-10:40 am

1 stop15h 38m

$869

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sun 11/8

2:45 pm-11:44 pm

1 stop17h 59m

Anchorage

Sun 11/15

6:45 am-12:20 pm

1 stop20h 35m

$881

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Fri 11/6

12:20 pm-12:52 am

1 stop21h 32m

Anchorage

Fri 11/13

10:02 am-10:40 am

1 stop15h 38m

$893

Quickest round-trip

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Thu 10/29

12:20 pm-8:51 pm

1 stop16h 31m

Anchorage

Sat 11/14

5:47 am-10:40 am

1 stop19h 53m

$900

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sat 11/7

12:20 pm-9:45 pm

1 stop18h 25m

Anchorage

Fri 11/13

1:48 am-10:40 am

1 stop23h 52m

$911

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Tue 10/20

11:40 am-10:48 pm

1 stop20h 08m

Anchorage

Mon 10/26

1:59 am-10:40 am

1 stop24h 41m

$920

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sun 11/8

6:30 am-11:44 pm

2 stops26h 14m

Anchorage

Sun 11/15

5:47 am-10:40 am

1 stop19h 53m

$924

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sat 11/7

8:55 am-10:46 pm

2 stops22h 51m

Anchorage

Sat 11/14

9:03 am-10:40 am

1 stop16h 37m

$937

LondonJuneau

LHR London Heathrow - JNU Juneau Intl

LHRJNU

London Heathrow

Sat 10/24

5:45 pm-8:49 am

1 stop24h 04m

Juneau Intl

Sat 10/31

7:13 am-10:40 am

1 stop19h 27m

$951

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Wed 11/4

12:15 pm-10:46 pm

2 stops19h 31m

Anchorage

Wed 11/11

5:28 pm-10:50 am

2 stops32h 22m

$972

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 January, then you should wait until May to fly from London, when ticket prices are also cheap, with an average price of $1,087.

Can stopping save me money on London to Alaska flights?

You could potentially save up to 39% 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	$664
Fastest flight time	16h 03m
Direct flights	None

The best one-way flight to Alaska from London in the past 72 hours is $664. The best round-trip flight deal from London to Alaska found on momondo in the last 72 hours is $869.

The fastest flight from London to Alaska takes 16h 03m

There are no direct flights from London to Alaska. There are no popular flight routes from London to Alaska.

Search flight deals

Frequently asked questions about flying 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 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.

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.