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

Alaska Airlines is the most popular carrier operating from London Heathrow to Alaska

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport 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.

$636 Cheap Flights from London Heathrow Airport to Alaska in 2026/27

Find the cheapest flights from London Heathrow Airport to Alaska

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:15 pm - 11:44 pmLHR London Heathrow-ANC Anchorage

19h 29m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

6:45 am - 7:30 pmANC Anchorage-LHR London Heathrow

27h 45m2 stops Seattle/Tacoma Intl Reykjavik Keflavik Intl

$799Multiple Airlines

Thu, Oct 29 - Thu, Nov 12

8:35 pm - 11:44 pmLHR London Heathrow-ANC Anchorage

36h 09m2 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

$968Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

12:15 pm - 12:16 pmLHR London Heathrow-ANC Anchorage

33h 01m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

4:00 pm - 10:50 amANC Anchorage-LHR London Heathrow

33h 50m2 stops Seattle/Tacoma Intl Reykjavik Keflavik Intl

$980Multiple Airlines

Wed, Jan 13 - Wed, Jan 20

2:45 pm - 8:49 amLHR London Heathrow-JNU Juneau Intl

26h 04m1 stop Seattle/Tacoma Intl

2:06 pm - 12:20 pmJNU Juneau Intl-LHR London Heathrow

13h 14m1 stop Seattle/Tacoma Intl

$984Alaska Airlines

Tue, Oct 27 - Tue, Nov 3

2:45 pm - 12:59 amLHR London Heathrow-FAI Fairbanks

19h 14m1 stop Seattle/Tacoma Intl

5:45 am - 12:20 pmFAI Fairbanks-LHR London Heathrow

21h 35m1 stop Seattle/Tacoma Intl

$993Alaska Airlines

Mon, Nov 23 - Tue, Dec 8

12:15 pm - 11:22 pmLHR London Heathrow-ANC Anchorage

20h 07m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

6:00 am - 10:40 amANC Anchorage-LHR London Heathrow

19h 40m1 stop Seattle/Tacoma Intl

$996Multiple Airlines

Wed, Jan 13 - Wed, Jan 20

1:05 pm - 10:40 pmLHR London Heathrow-ANC Anchorage

18h 35m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

6:00 am - 8:50 amANC Anchorage-LHR London Heathrow

17h 50m1 stop Seattle/Tacoma Intl

$1,002Multiple Airlines

Thu, Apr 1 - Tue, Apr 6

2:45 pm - 12:59 amLHR London Heathrow-FAI Fairbanks

19h 14m1 stop Seattle/Tacoma Intl

5:00 am - 12:20 pmFAI Fairbanks-LHR London Heathrow

22h 20m2 stops Anchorage Seattle/Tacoma Intl

$1,003Alaska Airlines

Mon, Nov 23 - Tue, Dec 8

12:15 pm - 12:59 amLHR London Heathrow-FAI Fairbanks

21h 44m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

12:04 pm - 12:20 pmFAI Fairbanks-LHR London Heathrow

15h 16m1 stop Seattle/Tacoma Intl

$1,025Multiple Airlines

Mon, Nov 23 - Tue, Dec 8

12:15 pm - 11:44 pmLHR London Heathrow-ANC Anchorage

19h 29m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

8:00 am - 10:50 amANC Anchorage-LHR London Heathrow

17h 50m2 stops Seattle/Tacoma Intl Reykjavik Keflavik Intl

$1,035Multiple Airlines

Thu, Oct 29 - Sat, Nov 14

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Icelandair flights from London Heathrow Airport to Alaska

Our best Icelandair deals on London Heathrow Airport to Alaska flight tickets

Icelandair

Nov 19

LHR12:15 pmLondon Heathrow

18h 22m

2 stops

JNU9:37 pmJuneau Intl

Nov 26

JNU6:00 amJuneau Intl

28h 30m

2 stops

LHR7:30 pmLondon Heathrow

$1,055

Icelandair

Nov 19

LHR12:15 pmLondon Heathrow

18h 30m

2 stops

ANC9:45 pmAnchorage

Nov 26

ANC7:35 amAnchorage

26h 55m

2 stops

LHR7:30 pmLondon Heathrow

$1,064

Icelandair

Mar 31

LHR1:05 pmLondon Heathrow

22h 06m

2 stops

ANC2:11 amAnchorage

Apr 28

ANC1:20 pmAnchorage

22h 00m

2 stops

LHR8:20 pmLondon Heathrow

$1,067

Alaska Airlines flights from London Heathrow Airport to Alaska

Our best Alaska Airlines deals on London Heathrow Airport to Alaska flight tickets

Alaska Airlines

Oct 27

LHR2:45 pmLondon Heathrow

26h 04m

1 stop

JNU8:49 amJuneau Intl

Nov 3

JNU2:06 pmJuneau Intl

13h 14m

1 stop

LHR12:20 pmLondon Heathrow

$984

Alaska Airlines

Nov 23

LHR2:45 pmLondon Heathrow

19h 14m

1 stop

FAI12:59 amFairbanks

Dec 8

FAI5:45 amFairbanks

21h 35m

1 stop

LHR12:20 pmLondon Heathrow

$993

Alaska Airlines

Nov 23

LHR2:45 pmLondon Heathrow

19h 14m

1 stop

FAI12:59 amFairbanks

Dec 8

FAI5:00 amFairbanks

22h 20m

2 stops

LHR12:20 pmLondon Heathrow

$1,003

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Thu 10/29

12:15 pm-11:44 pm

2 stops19h 29m

Anchorage

Thu 11/12

6:45 am-7:30 pm

2 stops27h 45m

$799

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Mon 11/9

8:35 pm-11:44 pm

2 stops36h 09m

Anchorage

Mon 11/16

5:28 pm-10:50 am

2 stops32h 22m

$968

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Wed 1/13

12:15 pm-12:16 pm

2 stops33h 01m

Anchorage

Wed 1/20

4:00 pm-10:50 am

2 stops33h 50m

$980

LondonJuneau

LHR London Heathrow - JNU Juneau Intl

LHRJNU

London Heathrow

Tue 10/27

2:45 pm-8:49 am

1 stop26h 04m

Juneau Intl

Tue 11/3

2:06 pm-12:20 pm

1 stop13h 14m

$984

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Mon 11/23

2:45 pm-12:59 am

1 stop19h 14m

Fairbanks

Tue 12/8

5:45 am-12:20 pm

1 stop21h 35m

$993

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Wed 1/13

12:15 pm-11:22 pm

2 stops20h 07m

Anchorage

Wed 1/20

6:00 am-10:40 am

1 stop19h 40m

$996

Quickest round-trip

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Thu 4/1

1:05 pm-10:40 pm

2 stops18h 35m

Anchorage

Tue 4/6

6:00 am-8:50 am

1 stop17h 50m

$1,002

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Mon 11/23

2:45 pm-12:59 am

1 stop19h 14m

Fairbanks

Tue 12/8

5:00 am-12:20 pm

2 stops22h 20m

$1,003

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Mon 11/23

12:15 pm-12:59 am

2 stops21h 44m

Fairbanks

Tue 12/8

12:04 pm-12:20 pm

1 stop15h 16m

$1,025

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Thu 10/29

12:15 pm-11:44 pm

2 stops19h 29m

Anchorage

Sat 11/14

8:00 am-10:50 am

2 stops17h 50m

$1,035

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 Heathrow Airport 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 December, then you should wait until March to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $0.

Can stopping save me money on London Heathrow Airport to Alaska flights?

You could potentially save up to 32% on your flight if you consider stops on a London Heathrow Airport to Alaska flight.

Cheap London Heathrow Airport to Alaska flight deals and tips

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

Best Price Found	$636
Fastest flight time	18h 19m
Direct flights	None

The best one-way flight to Alaska from London Heathrow Airport in the past 72 hours is $636. The best round-trip flight deal from London Heathrow Airport to Alaska found on momondo in the last 72 hours is $799.

The fastest flight from London Heathrow Airport to Alaska takes 18h 19m

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

Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Alaska

When did momondo last update prices for flights from London Heathrow Airport to Alaska?
Prices for flights from London Heathrow Airport to Alaska refresh daily.
How old do you have to be to fly from London Heathrow Airport to Alaska?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport 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?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Alaska. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from London to Alaska on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential London to Alaska flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Alaska from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.