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Cheap flights from London Heathrow Airport to Alaska from £422

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 15/2. 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 London Heathrow Airport to Alaska

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:15 - 23:56
LHR
-
FAI
20h 41m2 stops
Multiple Airlines Logo
02:10 - 10:50
FAI
-
LHR
23h 40m2 stops
£602Multiple Airlines
Sat, 31 Jan - Fri, 6 Feb
Icelandair Logo
21:25 - 22:29
LHR
-
ANC
58h 04m2 stops
Icelandair Logo
13:00 - 20:20
ANC
-
LHR
22h 20m2 stops
£614Icelandair
Tue, 14 Apr - Wed, 29 Apr
Icelandair Logo
20:35 - 22:52
LHR
-
ANC
35h 17m2 stops
Icelandair Logo
08:00 - 10:50
ANC
-
LHR
17h 50m2 stops
£659Icelandair
Tue, 13 Jan - Tue, 27 Jan
Multiple Airlines Logo
14:55 - 21:51
LHR
-
ANC
15h 56m1 stop
Multiple Airlines Logo
00:38 - 07:10
ANC
-
LHR
21h 32m1 stop
£675Multiple Airlines
Fri, 30 Jan - Thu, 5 Feb
Multiple Airlines Logo
09:25 - 23:56
LHR
-
FAI
23h 31m1 stop
Multiple Airlines Logo
02:10 - 07:10
FAI
-
LHR
20h 00m1 stop
£681Multiple Airlines
Sat, 31 Jan - Fri, 6 Feb
Icelandair Logo
20:35 - 21:51
LHR
-
ANC
34h 16m2 stops
Icelandair Logo
08:00 - 10:50
ANC
-
LHR
17h 50m2 stops
£693Icelandair
Mon, 26 Jan - Mon, 9 Feb
Multiple Airlines Logo
14:55 - 23:52
LHR
-
ANC
17h 57m1 stop
Multiple Airlines Logo
12:11 - 12:20
ANC
-
LHR
15h 09m1 stop
£695Multiple Airlines
Thu, 5 Feb - Fri, 20 Feb
British Airways Logo
14:55 - 22:15
LHR
-
FAI
16h 20m1 stop
British Airways Logo
11:30 - 12:20
FAI
-
LHR
15h 50m1 stop
£2,515British Airways
Thu, 19 Feb - Mon, 23 Feb
British Airways Logo
14:55 - 22:15
LHR
-
FAI
16h 20m1 stop
British Airways Logo
11:30 - 12:20
FAI
-
LHR
15h 50m1 stop
£2,521British Airways
Thu, 19 Feb - Mon, 23 Feb
British Airways Logo
14:55 - 22:15
LHR
-
FAI
16h 20m1 stop
British Airways Logo
11:30 - 12:20
FAI
-
LHR
15h 50m1 stop
£2,553British Airways
Thu, 19 Feb - Mon, 23 Feb

Icelandair flights from London Heathrow Airport to Alaska

Our best Icelandair deals on London Heathrow Airport to Alaska flight tickets
Icelandair
13 Jan
LHR20:35London Heathrow
35h 17m
2 stops
ANC22:52Anchorage
27 Jan
ANC08:00Anchorage
17h 50m
2 stops
LHR10:50London Heathrow
£659
Find similar
Icelandair
30 Jan
LHR20:35London Heathrow
34h 16m
2 stops
ANC21:51Anchorage
6 Feb
ANC08:00Anchorage
17h 50m
2 stops
LHR10:50London Heathrow
£696
Find similar
Icelandair
13 Jan
LHR20:35London Heathrow
35h 17m
2 stops
ANC22:52Anchorage
24 Jan
ANC08:00Anchorage
17h 50m
2 stops
LHR10:50London Heathrow
£698
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
13 Jan
LHR14:30London Heathrow
18h 39m
1 stop
ANC00:09Anchorage
27 Jan
ANC05:55Anchorage
21h 00m
1 stop
LHR11:55London Heathrow
£1,089
Find similar
Virgin Atlantic
15 Jan
LHR12:20London Heathrow
20h 49m
1 stop
ANC00:09Anchorage
22 Jan
ANC05:55Anchorage
19h 35m
1 stop
LHR10:30London Heathrow
£1,119
Find similar
Virgin Atlantic
15 Jan
LHR14:30London Heathrow
18h 39m
1 stop
ANC00:09Anchorage
22 Jan
ANC05:55Anchorage
19h 35m
1 stop
LHR10:30London Heathrow
£1,131
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 18 December 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 31/1

12:15-23:56

2 stops20h 41m

Fairbanks

Fri 6/2

02:10-10:50

2 stops23h 40m

£602

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 14/4

21:25-22:29

2 stops58h 04m

Anchorage

Wed 29/4

13:00-20:20

2 stops22h 20m

£614

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 13/1

20:35-22:52

2 stops35h 17m

Anchorage

Tue 27/1

08:00-10:50

2 stops17h 50m

£659

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 30/1

14:55-21:51

1 stop15h 56m

Anchorage

Thu 5/2

00:38-07:10

1 stop21h 32m

£675

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Sat 31/1

09:25-23:56

1 stop23h 31m

Fairbanks

Fri 6/2

02:10-07:10

1 stop20h 00m

£681

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 26/1

20:35-21:51

2 stops34h 16m

Anchorage

Mon 9/2

08:00-10:50

2 stops17h 50m

£693

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Thu 5/2

14:55-23:52

1 stop17h 57m

Anchorage

Fri 20/2

12:11-12:20

1 stop15h 09m

£695

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Thu 19/2

14:55-22:15

1 stop16h 20m

Fairbanks

Mon 23/2

11:30-12:20

1 stop15h 50m

£2,515

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Thu 19/2

14:55-22:15

1 stop16h 20m

Fairbanks

Mon 23/2

11:30-12:20

1 stop15h 50m

£2,521

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Thu 19/2

14:55-22:15

1 stop16h 20m

Fairbanks

Mon 23/2

11:30-12:20

1 stop15h 50m

£2,553

Flights are sorted by cheapest return flights first.

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

The cheapest month to fly to Alaska from London Heathrow Airport is in October. Flight prices, which tend to average around £765, are often lower during this time because this is during the off-season. If you’re not able to fly to Alaska in October, then September is your next best option. Flight prices from London Heathrow Airport to Alaska during September average around £785.

What is the cheapest day to depart on your flight to Alaska?

Our data shows that Thursday is the least expensive day to fly to Alaska. Tickets to fly out on this day can be as low as £826. On the other hand, Sunday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,104.

What is the cheapest time of day to depart on your flight to Alaska?

At midday is the cheapest time of day to fly from London Heathrow Airport to Alaska when you can find flight prices for as low as £773. Flying to Alaska at midday is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Alaska, so prices are often more expensive at around £1,061 per ticket.

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 £1,120 when searching weeks before you fly. 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 £798 on momondo.

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

You could potentially save up to 26% 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

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 are updated 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 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 London Heathrow Airport to Alaska.

  • What documentation or ID do you need to fly to Alaska?

    The travel and health documents you'll need for your trip to Alaska may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Alaska. It is always advisable to seek advice from your airline or a trusted 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
Scandinavian AirlinesPriceFrom £539Free CancellationRating
7.4
1,607 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom £657Free CancellationRating
7.0
591 reviews
Search Icelandair flights
British AirwaysPriceFrom £698Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
LufthansaPriceFrom £807Free CancellationRating
6.8
7,635 reviews
Search Lufthansa flights
Virgin AtlanticPriceFrom £1,057Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £1,071Free CancellationRating
7.4
9,092 reviews
Search United Airlines 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?

Yes. momondo enables you to select and highlight flights to Alaska from London with this policy.

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

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

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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