How long does it take to fly to London Heathrow Airport?

On average, it takes 16h 09m to fly from Alaska to London Heathrow Airport if you fly out of Fairbanks (the most popular airport in Alaska) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Anchorage and into London Heathrow Airport, then the flight time is around 16h 50m.

What airlines fly to London Heathrow Airport?

Delta, United Airlines and British Airways are the top three most popular airlines that fly to London Heathrow Airport from Alaska according to our data. Delta is the first choice among our users, with 68% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

United Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Alaska to London Heathrow

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?

The number of operators available for flights from Alaska to London Heathrow Airport is 3 as of October 2025.

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.

$441 Cheap Flights from Alaska to London Heathrow Airport in 2025/26

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Cheap round-trip flights

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6:05 am - 7:05 amANC-LHR

17h 00m1 stop

6:20 am - 6:46 pmLHR-ANC

21h 26m2 stops

$640Delta

Find Deal

Mon, Oct 27 - Mon, Nov 10

6:05 am - 7:05 amANC-LHR

16h 00m1 stop

8:40 am - 7:04 pmLHR-ANC

19h 24m2 stops

$642KLM

Find Deal

Thu, Nov 27 - Thu, Dec 4

11:59 pm - 11:05 amANC-LHR

26h 06m2 stops

11:35 am - 10:56 pmLHR-ANC

20h 21m1 stop

$650Lufthansa

Find Deal

Wed, Nov 26 - Wed, Dec 3

9:07 pm - 7:10 amANC-LHR

49h 03m2 stops

6:35 am - 7:59 pmLHR-ANC

22h 24m2 stops

$666United Airlines

Find Deal

Fri, Nov 7 - Fri, Nov 21

11:59 pm - 9:40 amANC-LHR

24h 41m1 stop

6:00 pm - 10:56 pmLHR-ANC

37h 56m2 stops

$692United Airlines

Find Deal

Thu, Nov 27 - Thu, Dec 4

2:20 am - 12:20 pmANC-LHR

25h 00m1 stop

2:55 pm - 10:44 pmLHR-ANC

16h 49m1 stop

$697Multiple Airlines

Find Deal

Wed, Nov 26 - Thu, Dec 4

12:30 am - 10:30 amANC-LHR

25h 00m1 stop

11:05 am - 7:04 pmLHR-ANC

16h 59m1 stop

$790Multiple Airlines

Find Deal

Tue, Nov 25 - Wed, Dec 3

9:00 am - 6:45 pmANC-LHR

24h 45m2 stops

7:30 pm - 7:45 pmLHR-ANC

32h 15m2 stops

$823Lufthansa

Find Deal

Tue, Feb 24 - Mon, Mar 9

10:00 am - 11:55 amANC-LHR

16h 55m2 stops

1:05 pm - 1:28 amLHR-ANC

21h 23m2 stops

$926Icelandair

Find Deal

Tue, Apr 7 - Sun, Apr 19

10:00 am - 10:50 amANC-LHR

16h 50m2 stops

1:05 pm - 10:29 pmLHR-ANC

18h 24m2 stops

$955Icelandair

Find Deal

Sun, Mar 22 - Sat, Apr 4

Delta flights from Alaska to London Heathrow Airport

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

Delta

Oct 25

FAI1:50 amFairbanks

24h 40m

1 stop

LHR10:30 amLondon Heathrow

Nov 19

LHR6:20 amLondon Heathrow

27h 03m

2 stops

FAI12:23 amFairbanks

$592

Find similar

Delta

Oct 25

FAI1:50 amFairbanks

24h 40m

1 stop

LHR10:30 amLondon Heathrow

Nov 17

LHR11:45 amLondon Heathrow

45h 38m

2 stops

FAI12:23 amFairbanks

$593

Find similar

Delta

Oct 25

FAI1:50 amFairbanks

24h 50m

2 stops

LHR10:40 amLondon Heathrow

Nov 19

LHR6:20 amLondon Heathrow

27h 03m

2 stops

FAI12:23 amFairbanks

$596

Find similar

Alaska Airlines flights from Alaska to London Heathrow Airport

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

Alaska Airlines

Oct 26

ANC1:20 amAnchorage

26h 00m

1 stop

LHR11:20 amLondon Heathrow

Nov 10

LHR1:45 pmLondon Heathrow

20h 12m

1 stop

ANC12:57 amAnchorage

$1,573

Find similar

Alaska Airlines

Oct 24

FAI2:00 amFairbanks

19h 55m

1 stop

LHR6:55 amLondon Heathrow

Nov 18

LHR9:25 amLondon Heathrow

21h 33m

1 stop

FAI9:58 pmFairbanks

$1,574

Find similar

Alaska Airlines

Oct 29

JNU2:23 pmJuneau Intl

13h 57m

1 stop

LHR12:20 pmLondon Heathrow

Nov 2

LHR1:45 pmLondon Heathrow

17h 56m

2 stops

JNU10:41 pmJuneau Intl

$2,228

Find similar

momondo Fare Finder

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

Mon 10/27

6:05 am-7:05 am

1 stop17h 00m

London Heathrow

Mon 11/10

6:20 am-6:46 pm

2 stops21h 26m

$640

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 11/27

6:05 am-7:05 am

1 stop16h 00m

London Heathrow

Thu 12/4

8:40 am-7:04 pm

2 stops19h 24m

$642

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 11/26

11:59 pm-11:05 am

2 stops26h 06m

London Heathrow

Wed 12/3

11:35 am-10:56 pm

1 stop20h 21m

$650

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Fri 11/7

9:07 pm-7:10 am

2 stops49h 03m

London Heathrow

Fri 11/21

6:35 am-7:59 pm

2 stops22h 24m

$666

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 11/27

11:59 pm-9:40 am

1 stop24h 41m

London Heathrow

Thu 12/4

6:00 pm-10:56 pm

2 stops37h 56m

$692

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 11/26

2:20 am-12:20 pm

1 stop25h 00m

London Heathrow

Thu 12/4

2:55 pm-10:44 pm

1 stop16h 49m

$697

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 11/25

12:30 am-10:30 am

1 stop25h 00m

London Heathrow

Wed 12/3

11:05 am-7:04 pm

1 stop16h 59m

$790

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 2/24

9:00 am-6:45 pm

2 stops24h 45m

London Heathrow

Mon 3/9

7:30 pm-7:45 pm

2 stops32h 15m

$823

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 4/7

10:00 am-11:55 am

2 stops16h 55m

London Heathrow

Sun 4/19

1:05 pm-1:28 am

2 stops21h 23m

$926

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Sun 3/22

10:00 am-10:50 am

2 stops16h 50m

London Heathrow

Sat 4/4

1:05 pm-10:29 pm

2 stops18h 24m

$955

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 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

Prices

Airlines

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of April is, on average, the cheapest month to fly to London Heathrow Airport from Alaska, with most prices found around $845. If you’re not able to fly to London Heathrow Airport in April, then October is your next best option. Flight prices from Alaska to London Heathrow Airport during October average around $871.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $873. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,186.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from Alaska to London Heathrow Airport at noon for as low as $963. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,162.

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

You could potentially save up to 3% 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

Direct flights	None

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?
The number of operators available for flights from Alaska to London Heathrow Airport is 3 as of October 2025.
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
United Airlines	PriceFrom $771	Free Cancellation	Rating 7.4 8,977 reviews	Search United Airlines flights
Delta	PriceFrom $776	Free Cancellation	Rating 7.9 7,977 reviews	Search Delta flights
British Airways	PriceFrom $876	Free Cancellation	Rating 6.7 7,457 reviews	Search British Airways flights

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Guildford

Dartford

Hayes

Crawley

Chelmsford

Brentwood

Salisbury

Colchester

Ilford

Folkestone

Romford

Swindon

Stratford-upon-Avon

Cobham

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

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Cheap flights from Alaska to London from $441

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 12/9. 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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Delta flights from Alaska to London Heathrow Airport

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

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

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

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?

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $873. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,186.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

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

You could potentially save up to 3% on your flight if you consider stops on a Alaska to London Heathrow Airport flight.

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

United Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Alaska to London Heathrow

What airlines fly to London Heathrow Airport?

How long does it take to fly to London Heathrow Airport?

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

Direct flights

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

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?

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

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

Traveling to a place near London?

Why use momondo?

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

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

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

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

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo