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Cheap flights from Alaska to London from £351

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 22/4. 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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Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
06:15 - 10:30
ANC
-
LHR
20h 15m
1 stop
KLM Logo
12:20 - 00:29
LHR
-
ANC
20h 09m
1 stop
£643KLM
Wed, 18 Mar - Wed, 25 Mar
Multiple Airlines Logo
21:10 - 07:10
ANC
-
LHR
26h 00m
2 stops
Multiple Airlines Logo
06:30 - 20:01
LHR
-
ANC
21h 31m
2 stops
£644Multiple Airlines
Wed, 18 Mar - Wed, 25 Mar
Icelandair Logo
12:20 - 20:20
ANC
-
LHR
23h 00m
2 stops
Icelandair Logo
13:05 - 22:43
LHR
-
ANC
18h 38m
2 stops
£648Icelandair
Wed, 22 Apr - Wed, 29 Apr
Icelandair Logo
12:20 - 20:20
ANC
-
LHR
23h 00m
2 stops
Icelandair Logo
21:25 - 22:43
LHR
-
ANC
34h 18m
2 stops
£650Icelandair
Wed, 22 Apr - Tue, 28 Apr
Virgin Atlantic Logo
06:15 - 10:55
ANC
-
LHR
20h 40m
2 stops
Virgin Atlantic Logo
12:20 - 20:35
LHR
-
ANC
16h 15m
1 stop
£651Virgin Atlantic
Wed, 18 Mar - Wed, 25 Mar
KLM Logo
06:00 - 15:35
ANC
-
LHR
24h 35m
1 stop
KLM Logo
06:30 - 18:46
LHR
-
ANC
21h 16m
2 stops
£657KLM
Wed, 22 Apr - Wed, 29 Apr
United Airlines Logo
09:00 - 09:40
ANC
-
LHR
15h 40m
1 stop
United Airlines Logo
13:25 - 20:01
LHR
-
ANC
38h 36m
2 stops
£659United Airlines
Tue, 3 Mar - Tue, 24 Mar
United Airlines Logo
23:52 - 07:10
ANC
-
LHR
23h 18m
2 stops
United Airlines Logo
13:25 - 20:01
LHR
-
ANC
38h 36m
2 stops
£662United Airlines
Tue, 17 Mar - Tue, 24 Mar
United Airlines Logo
21:04 - 06:45
ANC
-
LHR
24h 41m
1 stop
United Airlines Logo
09:00 - 22:45
LHR
-
ANC
46h 45m
2 stops
£664United Airlines
Sun, 5 Apr - Mon, 13 Apr
United Airlines Logo
21:04 - 06:45
ANC
-
LHR
24h 41m
1 stop
United Airlines Logo
09:00 - 19:55
LHR
-
ANC
43h 55m
2 stops
£665United Airlines
Sun, 5 Apr - Mon, 13 Apr

Icelandair flights from Alaska to London Heathrow Airport

Our best Icelandair deals on Alaska to London Heathrow Airport flight tickets
Icelandair
22 Apr
ANC12:20Anchorage
23h 00m
2 stops
LHR20:20London Heathrow
29 Apr
LHR13:05London Heathrow
18h 38m
2 stops
ANC22:43Anchorage
£648
Icelandair
22 Apr
ANC12:20Anchorage
23h 00m
2 stops
LHR20:20London Heathrow
28 Apr
LHR21:25London Heathrow
34h 18m
2 stops
ANC22:43Anchorage
£650
Icelandair
28 Apr
ANC13:22Anchorage
21h 58m
2 stops
LHR20:20London Heathrow
11 May
LHR21:25London Heathrow
58h 11m
2 stops
ANC22:36Anchorage
£686

United Airlines flights from Alaska to London Heathrow Airport

Our best United Airlines deals on Alaska to London Heathrow Airport flight tickets
United Airlines
3 Mar
ANC09:00Anchorage
15h 40m
1 stop
LHR09:40London Heathrow
24 Mar
LHR13:25London Heathrow
38h 36m
2 stops
ANC20:01Anchorage
£659
United Airlines
17 Mar
ANC23:52Anchorage
23h 18m
2 stops
LHR07:10London Heathrow
24 Mar
LHR13:25London Heathrow
38h 36m
2 stops
ANC20:01Anchorage
£662
United Airlines
5 Apr
ANC21:04Anchorage
24h 41m
1 stop
LHR06:45London Heathrow
13 Apr
LHR09:00London Heathrow
46h 45m
2 stops
ANC22:45Anchorage
£664

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 2 February 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 18/3

06:15-10:30

1 stop20h 15m

London Heathrow

Wed 25/3

12:20-00:29

1 stop20h 09m

£643

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 18/3

21:10-07:10

2 stops26h 00m

London Heathrow

Wed 25/3

06:30-20:01

2 stops21h 31m

£644

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 22/4

12:20-20:20

2 stops23h 00m

London Heathrow

Wed 29/4

13:05-22:43

2 stops18h 38m

£648

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 22/4

12:20-20:20

2 stops23h 00m

London Heathrow

Tue 28/4

21:25-22:43

2 stops34h 18m

£650

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 18/3

06:15-10:55

2 stops20h 40m

London Heathrow

Wed 25/3

12:20-20:35

1 stop16h 15m

£651

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 22/4

06:00-15:35

1 stop24h 35m

London Heathrow

Wed 29/4

06:30-18:46

2 stops21h 16m

£656

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 3/3

09:00-09:40

1 stop15h 40m

London Heathrow

Tue 24/3

13:25-20:01

2 stops38h 36m

£659

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 17/3

23:52-07:10

2 stops23h 18m

London Heathrow

Tue 24/3

13:25-20:01

2 stops38h 36m

£662

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 5/4

21:04-06:45

1 stop24h 41m

London Heathrow

Mon 13/4

09:00-22:45

2 stops46h 45m

£664

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 5/4

21:04-06:45

1 stop24h 41m

London Heathrow

Mon 13/4

09:00-19:55

2 stops43h 55m

£665

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

In general, August is the cheapest month to fly from Alaska to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £577. The month of April is another great option to travel to London Heathrow Airport, with average flight prices from Alaska averaging around £617.

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

You could potentially save up to 28% on your flight if you consider stops on a Alaska to London Heathrow Airport flight.

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 refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Northampton
Stratford-upon-Avon
Swindon
Southend-on-Sea
Canterbury
Ipswich
Ilford
Poole
Guildford
Chelmsford
Hayes
Dover
Swanage
Folkestone

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Alaska.

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

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

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?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Alaska and alert you when they change.

An easier way to manage your London Heathrow Airport trip

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