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Cheap flights from Alaska to London from $434

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Alaska to London departing on 5/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Alaska to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
6:15 am - 10:30 am
ANC
-
LHR
20h 15m
1 stop
KLM Logo
12:20 pm - 12:29 am
LHR
-
ANC
20h 09m
1 stop
$880KLM
Wed, Mar 18 - Wed, Mar 25
Multiple Airlines Logo
9:10 pm - 7:10 am
ANC
-
LHR
26h 00m
2 stops
Multiple Airlines Logo
6:30 am - 8:01 pm
LHR
-
ANC
21h 31m
2 stops
$882Multiple Airlines
Wed, Mar 18 - Wed, Mar 25
Icelandair Logo
12:20 pm - 8:20 pm
ANC
-
LHR
23h 00m
2 stops
Icelandair Logo
1:05 pm - 10:43 pm
LHR
-
ANC
18h 38m
2 stops
$888Icelandair
Wed, Apr 22 - Wed, Apr 29
Icelandair Logo
12:20 pm - 8:20 pm
ANC
-
LHR
23h 00m
2 stops
Icelandair Logo
9:25 pm - 10:43 pm
LHR
-
ANC
34h 18m
2 stops
$890Icelandair
Wed, Apr 22 - Tue, Apr 28
Virgin Atlantic Logo
6:15 am - 10:55 am
ANC
-
LHR
20h 40m
2 stops
Virgin Atlantic Logo
12:20 pm - 8:35 pm
LHR
-
ANC
16h 15m
1 stop
$891Virgin Atlantic
Wed, Mar 18 - Wed, Mar 25
KLM Logo
6:00 am - 3:35 pm
ANC
-
LHR
24h 35m
1 stop
KLM Logo
6:30 am - 6:46 pm
LHR
-
ANC
21h 16m
2 stops
$899KLM
Wed, Apr 22 - Wed, Apr 29
United Airlines Logo
9:04 pm - 8:30 am
ANC
-
LHR
26h 26m
1 stop
United Airlines Logo
9:00 am - 7:55 pm
LHR
-
ANC
43h 55m
2 stops
$908United Airlines
Sun, Apr 5 - Mon, Apr 13
United Airlines Logo
9:04 pm - 6:45 am
ANC
-
LHR
24h 41m
1 stop
United Airlines Logo
9:00 am - 7:55 pm
LHR
-
ANC
43h 55m
2 stops
$910United Airlines
Sun, Apr 5 - Mon, Apr 13
Delta Logo
5:45 am - 10:30 am
ANC
-
LHR
19h 45m
1 stop
Delta Logo
12:20 pm - 12:29 am
LHR
-
ANC
20h 09m
1 stop
$911Delta
Mon, Mar 2 - Tue, Mar 17
Delta Logo
1:27 am - 6:20 am
FAI
-
LHR
19h 53m
2 stops
Delta Logo
2:30 pm - 12:12 am
LHR
-
FAI
17h 42m
1 stop
$1,192Delta
Fri, Mar 6 - Tue, Mar 24

Icelandair flights from Alaska to London Heathrow Airport

Our best Icelandair deals on Alaska to London Heathrow Airport flight tickets
Icelandair
Apr 22
ANC12:20 pmAnchorage
23h 00m
2 stops
LHR8:20 pmLondon Heathrow
Apr 29
LHR1:05 pmLondon Heathrow
18h 38m
2 stops
ANC10:43 pmAnchorage
$888
Icelandair
Apr 22
ANC12:20 pmAnchorage
23h 00m
2 stops
LHR8:20 pmLondon Heathrow
Apr 28
LHR9:25 pmLondon Heathrow
34h 18m
2 stops
ANC10:43 pmAnchorage
$890
Icelandair
Apr 28
ANC1:22 pmAnchorage
21h 58m
2 stops
LHR8:20 pmLondon Heathrow
May 11
LHR9:25 pmLondon Heathrow
58h 11m
2 stops
ANC10:36 pmAnchorage
$939

KLM flights from Alaska to London Heathrow Airport

Our best KLM deals on Alaska to London Heathrow Airport flight tickets
KLM
Apr 22
ANC6:00 amAnchorage
24h 35m
1 stop
LHR3:35 pmLondon Heathrow
Apr 29
LHR6:30 amLondon Heathrow
21h 16m
2 stops
ANC6:46 pmAnchorage
$899
KLM
Mar 4
ANC1:20 amAnchorage
24h 10m
1 stop
LHR10:30 amLondon Heathrow
Mar 12
LHR12:20 pmLondon Heathrow
20h 08m
1 stop
ANC12:28 amAnchorage
$910
KLM
Apr 6
ANC6:15 amAnchorage
24h 20m
1 stop
LHR3:35 pmLondon Heathrow
Apr 21
LHR5:45 pmLondon Heathrow
15h 40m
1 stop
ANC12:25 amAnchorage
$926

momondo Fare Finder

 
Customize your flight search to find flights from Alaska to London Heathrow Airport 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 February 4, 2026.
Use the filters below to find and compare flights from Alaska to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 3/18

6:15 am-10:30 am

1 stop20h 15m

London Heathrow

Wed 3/25

12:20 pm-12:29 am

1 stop20h 09m

$880

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 3/18

9:10 pm-7:10 am

2 stops26h 00m

London Heathrow

Wed 3/25

6:30 am-8:01 pm

2 stops21h 31m

$882

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 4/22

12:20 pm-8:20 pm

2 stops23h 00m

London Heathrow

Wed 4/29

1:05 pm-10:43 pm

2 stops18h 38m

$888

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 4/22

12:20 pm-8:20 pm

2 stops23h 00m

London Heathrow

Tue 4/28

9:25 pm-10:43 pm

2 stops34h 18m

$890

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 3/18

6:15 am-10:55 am

2 stops20h 40m

London Heathrow

Wed 3/25

12:20 pm-8:35 pm

1 stop16h 15m

$891

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 4/22

6:00 am-3:35 pm

1 stop24h 35m

London Heathrow

Wed 4/29

6:30 am-6:46 pm

2 stops21h 16m

$899

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 4/5

9:04 pm-8:30 am

1 stop26h 26m

London Heathrow

Mon 4/13

9:00 am-7:55 pm

2 stops43h 55m

$908

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 4/5

9:04 pm-6:45 am

1 stop24h 41m

London Heathrow

Mon 4/13

9:00 am-7:55 pm

2 stops43h 55m

$910

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 3/2

5:45 am-10:30 am

1 stop19h 45m

London Heathrow

Tue 3/17

12:20 pm-12:29 am

1 stop20h 09m

$911

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Fri 3/6

1:27 am-6:20 am

2 stops19h 53m

London Heathrow

Tue 3/24

2:30 pm-12:12 am

1 stop17h 42m

$1,192

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 London from

How to get the cheapest flight ticket from Alaska to London Heathrow Airport

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 London Heathrow Airport?

The month of August is, on average, the cheapest month to fly to London Heathrow Airport from Alaska, with most prices found around $790. If you’re not able to fly to London Heathrow Airport in August, then April is your next best option. Flight prices from Alaska to London Heathrow Airport during April average around $845.

Cheap Alaska to London Heathrow Airport flight deals and tips

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

Fastest flight time

14h 13m

Direct flights

None
The fastest flight from Alaska to London Heathrow Airport takes 14h 13m
There are no direct flights from Alaska to London Heathrow Airport. There are no popular flight routes from Alaska to London Heathrow Airport.
Search flight deals

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

    Prices for flights from Alaska to London Heathrow Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Alaska to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport 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 London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Alaska to London Heathrow Airport

Compare and see reviews for airlines that fly from Alaska to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $776Free CancellationRating
7.9
8,138 reviews
Search Delta flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Guildford
Crawley
Wembley
Dartford
Stratford-upon-Avon
Hayes
Croydon
Brentwood
Harrow
Watford
Cobham
Folkestone
Romford
Stansted

Why use momondo?

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

Finding the right flight to London from Alaska 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 London quick and easy, saving you time and money.

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

Flights from Alaska to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to London from Alaska. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Alaska to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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