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Cheap flights from London Heathrow Airport to Alaska from $565

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Alaska departing on 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Heathrow Airport to Alaska

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:15 pm - 11:56 pm
LHR
-
FAI
20h 41m2 stops
Multiple Airlines Logo
2:10 am - 10:50 am
FAI
-
LHR
23h 40m2 stops
$805Multiple Airlines
Sat, Jan 31 - Fri, Feb 6
Icelandair Logo
9:25 pm - 10:29 pm
LHR
-
ANC
58h 04m2 stops
Icelandair Logo
1:00 pm - 8:20 pm
ANC
-
LHR
22h 20m2 stops
$821Icelandair
Tue, Apr 14 - Wed, Apr 29
Icelandair Logo
8:35 pm - 10:52 pm
LHR
-
ANC
35h 17m2 stops
Icelandair Logo
8:00 am - 10:50 am
ANC
-
LHR
17h 50m2 stops
$882Icelandair
Tue, Jan 13 - Tue, Jan 27
Multiple Airlines Logo
2:55 pm - 9:51 pm
LHR
-
ANC
15h 56m1 stop
Multiple Airlines Logo
12:38 am - 7:10 am
ANC
-
LHR
21h 32m1 stop
$903Multiple Airlines
Fri, Jan 30 - Thu, Feb 5
Multiple Airlines Logo
9:25 am - 11:56 pm
LHR
-
FAI
23h 31m1 stop
Multiple Airlines Logo
2:10 am - 7:10 am
FAI
-
LHR
20h 00m1 stop
$911Multiple Airlines
Sat, Jan 31 - Fri, Feb 6
Icelandair Logo
8:35 pm - 9:51 pm
LHR
-
ANC
34h 16m2 stops
Icelandair Logo
8:00 am - 10:50 am
ANC
-
LHR
17h 50m2 stops
$927Icelandair
Mon, Jan 26 - Mon, Feb 9
Multiple Airlines Logo
2:55 pm - 11:52 pm
LHR
-
ANC
17h 57m1 stop
Multiple Airlines Logo
12:11 pm - 12:20 pm
ANC
-
LHR
15h 09m1 stop
$929Multiple Airlines
Thu, Feb 5 - Fri, Feb 20
British Airways Logo
2:55 pm - 10:15 pm
LHR
-
FAI
16h 20m1 stop
British Airways Logo
11:30 am - 12:20 pm
FAI
-
LHR
15h 50m1 stop
$3,363British Airways
Thu, Feb 19 - Mon, Feb 23
British Airways Logo
2:55 pm - 10:15 pm
LHR
-
FAI
16h 20m1 stop
British Airways Logo
11:30 am - 12:20 pm
FAI
-
LHR
15h 50m1 stop
$3,371British Airways
Thu, Feb 19 - Mon, Feb 23
British Airways Logo
2:55 pm - 10:15 pm
LHR
-
FAI
16h 20m1 stop
British Airways Logo
11:30 am - 12:20 pm
FAI
-
LHR
15h 50m1 stop
$3,414British Airways
Thu, Feb 19 - Mon, Feb 23

Icelandair flights from London Heathrow Airport to Alaska

Our best Icelandair deals on London Heathrow Airport to Alaska flight tickets
Icelandair
Apr 14
LHR9:25 pmLondon Heathrow
58h 04m
2 stops
ANC10:29 pmAnchorage
Apr 29
ANC1:00 pmAnchorage
22h 20m
2 stops
LHR8:20 pmLondon Heathrow
$821
Find similar
Icelandair
Jan 13
LHR8:35 pmLondon Heathrow
35h 17m
2 stops
ANC10:52 pmAnchorage
Jan 27
ANC8:00 amAnchorage
17h 50m
2 stops
LHR10:50 amLondon Heathrow
$882
Find similar
Icelandair
Jan 26
LHR8:35 pmLondon Heathrow
34h 16m
2 stops
ANC9:51 pmAnchorage
Feb 9
ANC8:00 amAnchorage
17h 50m
2 stops
LHR10:50 amLondon Heathrow
$927
Find similar

Virgin Atlantic flights from London Heathrow Airport to Alaska

Our best Virgin Atlantic deals on London Heathrow Airport to Alaska flight tickets
Virgin Atlantic
May 12
LHR5:25 pmLondon Heathrow
37h 57m
1 stop
ANC10:22 pmAnchorage
May 26
ANC8:30 pmAnchorage
25h 00m
1 stop
LHR6:30 amLondon Heathrow
$1,191
Find similar
Virgin Atlantic
Jan 13
LHR2:30 pmLondon Heathrow
18h 39m
1 stop
ANC12:09 amAnchorage
Jan 27
ANC5:55 amAnchorage
21h 00m
1 stop
LHR11:55 amLondon Heathrow
$1,456
Find similar
Virgin Atlantic
May 12
LHR5:25 pmLondon Heathrow
17h 10m
1 stop
ANC1:35 amAnchorage
May 26
ANC6:10 amAnchorage
18h 05m
2 stops
LHR9:15 amLondon Heathrow
$1,488
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Alaska that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 18, 2025.
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

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Sat 1/31

12:15 pm-11:56 pm

2 stops20h 41m

Fairbanks

Fri 2/6

2:10 am-10:50 am

2 stops23h 40m

$805

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 4/14

9:25 pm-10:29 pm

2 stops58h 04m

Anchorage

Wed 4/29

1:00 pm-8:20 pm

2 stops22h 20m

$821

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 1/13

8:35 pm-10:52 pm

2 stops35h 17m

Anchorage

Tue 1/27

8:00 am-10:50 am

2 stops17h 50m

$882

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 1/30

2:55 pm-9:51 pm

1 stop15h 56m

Anchorage

Thu 2/5

12:38 am-7:10 am

1 stop21h 32m

$903

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Sat 1/31

9:25 am-11:56 pm

1 stop23h 31m

Fairbanks

Fri 2/6

2:10 am-7:10 am

1 stop20h 00m

$911

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 1/26

8:35 pm-9:51 pm

2 stops34h 16m

Anchorage

Mon 2/9

8:00 am-10:50 am

2 stops17h 50m

$927

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Thu 2/5

2:55 pm-11:52 pm

1 stop17h 57m

Anchorage

Fri 2/20

12:11 pm-12:20 pm

1 stop15h 09m

$929

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Thu 2/19

2:55 pm-10:15 pm

1 stop16h 20m

Fairbanks

Mon 2/23

11:30 am-12:20 pm

1 stop15h 50m

$3,363

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Thu 2/19

2:55 pm-10:15 pm

1 stop16h 20m

Fairbanks

Mon 2/23

11:30 am-12:20 pm

1 stop15h 50m

$3,371

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Thu 2/19

2:55 pm-10:15 pm

1 stop16h 20m

Fairbanks

Mon 2/23

11:30 am-12:20 pm

1 stop15h 50m

$3,414

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Alaska from

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

What is the cheapest month to fly to Alaska?

If you don’t want to visit Alaska in October, then you should wait until September to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $1,050.

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

You are more likely to see cheaper flights to Alaska from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Alaska for around $1,498 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Alaska from London Heathrow Airport for as low as $1,067 on momondo.

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

Fastest flight time

16h 20m

Direct flights

None
The fastest flight from London Heathrow Airport to Alaska takes 16h 20m
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

  • 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 many operators does momondo search for flights from London Heathrow Airport 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.

Best airlines flying from London Heathrow Airport to Alaska

Compare and see reviews for airlines that fly from London Heathrow Airport to Alaska with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $1,401Free CancellationRating
7.9
8,005 reviews
Search Delta flights

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.

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