How long is the flight from Alaska to London Heathrow Airport?

United Airlines, Delta, and KLM can get you from Alaska to London Heathrow Airport in just under 21h 35m. Your travel time can differ by up to 3h 10m. Airlines will cover a distance of 4471 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Alaska to London Heathrow Airport?

While some choose either Fairbanks - London Heathrow or Juneau Intl - London Heathrow, Anchorage - London Heathrow is the most popular route from Alaska to London Heathrow Airport.

Can I find deals for flights from Alaska to Heathrow that include hotel bookings?

Yes. In addition to deals on Alaska to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Alaska to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Alaska to Heathrow.

Can I find deals for business class flights from Alaska to Heathrow?

Yes. Cheapflights offers flight deals from Alaska to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£280+ Flights from Alaska to London Heathrow Airport

Q: How much does it cost for a return flight from Alaska to London Heathrow Airport?

Airfare is below average for this route at the moment. Alaska to London Heathrow Airport flights typically cost between £579 and £953 in November. The cheapest return flight price found within the last 3 days was £455 on Delta (5 Nov-20 Nov).

Cheap flight deals from Alaska to Heathrow

Round-trip from	£455
One-way from	£280
Popular in	January
Cheapest in	October
Average price	£723

Delta
5/11-20/11
3 total stops
35h 41m total
Alaska to London

Search Deals

27/10
2 total stops
33h 18m total
Alaska to London

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£84 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Alaska to Heathrow

Cheapest flights from Alaska to Heathrow
Explore the most affordable flight options available from Alaska to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Wed 5/1111:15ANC - LHR

1 stop14h 15mDelta

Thu 20/1106:20LHR - ANC

2 stops21h 26mDelta

Deal found 16/9£455

Tue 4/1100:30ANC - LHR

1 stop25h 00mKLM

Thu 20/1106:30LHR - ANC

2 stops19h 12mKLM

Deal found 17/9£457

Mon 27/1023:59ANC - LHR

2 stops23h 11mUnited Airlines

Mon 10/1113:50LHR - ANC

2 stops39h 09mUnited Airlines

Deal found 15/9£458

Tue 18/1100:30ANC - LHR

2 stops20h 50mDelta

Fri 5/1206:30LHR - ANC

2 stops21h 17mDelta

Deal found 15/9£460

Fri 7/1121:07ANC - LHR

2 stops48h 23mAir Canada

Fri 21/1111:10LHR - ANC

2 stops41h 49mAir Canada

Deal found 15/9£463

Fri 31/1006:00ANC - LHR

1 stop20h 30mVirgin Atlantic

Fri 7/1112:20LHR - ANC

1 stop19h 27mVirgin Atlantic

Deal found 16/9£471

Mon 20/1021:04ANC - LHR

1 stop24h 16mUnited Airlines

Mon 27/1015:30LHR - ANC

2 stops39h 26mUnited Airlines

Deal found 16/9£481

Thu 30/1001:45FAI - LHR

1 stop24h 45mKLM

Fri 7/1106:30LHR - FAI

2 stops27h 10mKLM

Deal found 16/9£490

Tue 28/1001:45FAI - LHR

1 stop24h 45mDelta

Sun 2/1105:30LHR - FAI

2 stops27h 10mDelta

Deal found 16/9£495

Wed 29/1001:45FAI - LHR

1 stop24h 45mKLM

Thu 6/1106:30LHR - FAI

2 stops27h 10mKLM

Deal found 14/9£524

Wed 29/1001:45FAI - LHR

2 stops21h 20mDelta

Thu 6/1111:05LHR - FAI

2 stops22h 35mDelta

Deal found 14/9£532

Tue 28/1001:45FAI - LHR

1 stop24h 45mKLM

Sun 2/1112:20LHR - FAI

1 stop21h 20mKLM

Deal found 16/9£537

Best flights from Alaska to Heathrow
Discover carefully curated flight deals from Alaska to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2025.

Mon 27/1023:59ANC - LHR

2 stops23h 11mUnited Airlines

Mon 10/1113:50LHR - ANC

2 stops39h 09mUnited Airlines

Deal found 15/9£458

Tue 4/1100:30ANC - LHR

2 stops21h 35mDelta

Thu 20/1106:20LHR - ANC

2 stops19h 22mDelta

Deal found 16/9£459

Tue 4/1100:30ANC - LHR

1 stop25h 00mKLM

Thu 20/1112:20LHR - ANC

1 stop19h 29mKLM

Deal found 16/9£462

Fri 31/1006:55JNU - LHR

1 stop21h 25mAmerican Airlines

Fri 7/1114:55LHR - JNU

1 stop16h 46mAmerican Airlines

Deal found 16/9£705

Fri 31/1007:13JNU - LHR

3 stops23h 32mMultiple Airlines

Fri 7/1107:40LHR - JNU

2 stops24h 01mMultiple Airlines

Deal found 16/9£714

Mon 20/1023:49ANC - LHR

2 stops21h 41mUnited Airlines

Mon 27/1015:30LHR - ANC

2 stops39h 26mUnited Airlines

Deal found 16/9£481

Thu 30/1001:45FAI - LHR

1 stop24h 45mKLM

Fri 7/1106:30LHR - FAI

2 stops27h 10mKLM

Deal found 16/9£490

Fri 3/1014:15ANC - LHR

1 stop15h 00mDelta

Tue 7/1009:00LHR - ANC

2 stops22h 43mDelta

Deal found 16/9£493

Fri 7/1121:07ANC - LHR

1 stop25h 48mUnited Airlines

Fri 21/1106:35LHR - ANC

2 stops25h 21mUnited Airlines

Deal found 15/9£488

Tue 28/1001:45FAI - LHR

1 stop24h 45mDelta

Sun 2/1105:30LHR - FAI

2 stops27h 10mDelta

Deal found 16/9£495

Wed 29/1001:45FAI - LHR

1 stop24h 45mKLM

Thu 6/1112:20LHR - FAI

1 stop21h 20mKLM

Deal found 14/9£529

Thu 6/1121:07ANC - LHR

1 stop23h 48mUnited Airlines

Fri 21/1106:35LHR - ANC

2 stops22h 24mUnited Airlines

Deal found 14/9£488

Wed 29/1014:23JNU - LHR

1 stop13h 57mBritish Airways

Sun 2/1114:55LHR - JNU

1 stop16h 46mBritish Airways

Deal found 14/9£1,220

Wed 29/1001:45FAI - LHR

2 stops21h 20mDelta

Thu 6/1111:05LHR - FAI

2 stops22h 35mDelta

Deal found 14/9£532

Tue 28/1001:45FAI - LHR

1 stop24h 45mKLM

Sun 2/1112:20LHR - FAI

1 stop21h 20mKLM

Deal found 16/9£537

Thu 9/1001:45FAI - LHR

1 stop27h 30mDelta

Sat 18/1017:25LHR - FAI

1 stop16h 20mDelta

Deal found 15/9£548

Wed 29/1006:55JNU - LHR

2 stops23h 05mAmerican Airlines

Sun 2/1108:20LHR - JNU

2 stops23h 21mAmerican Airlines

Deal found 13/9£855

Last-minute flights from Alaska to Heathrow
Discover last-minute flight deals from Alaska to Heathrow. Data last updated 17 September 2025 and is based on user searches.

Fri 3/1014:15ANC - LHR

1 stop15h 00mDelta

Tue 7/1009:00LHR - ANC

2 stops22h 43mDelta

Deal found 16/9£493

Sun 19/1000:30ANC - LHR

2 stops21h 15mDelta

Mon 27/1006:30LHR - ANC

2 stops20h 01mDelta

Deal found 16/9£496

Mon 20/1023:49ANC - LHR

2 stops21h 41mUnited Airlines

Mon 27/1015:30LHR - ANC

2 stops39h 26mUnited Airlines

Deal found 16/9£481

Sat 25/1000:30ANC - LHR

2 stops22h 35mDelta

Sat 8/1106:20LHR - ANC

2 stops21h 11mDelta

Deal found 15/9£496

Sun 26/1021:07ANC - LHR

1 stop24h 48mUnited Airlines

Sat 8/1106:35LHR - ANC

2 stops25h 21mUnited Airlines

Deal found 14/9£488

Sun 26/1023:59ANC - LHR

2 stops23h 11mMultiple Airlines

Sat 8/1118:00LHR - ANC

2 stops34h 59mMultiple Airlines

Deal found 14/9£494

Mon 27/1023:59ANC - LHR

2 stops23h 11mUnited Airlines

Mon 10/1113:50LHR - ANC

2 stops39h 09mUnited Airlines

Deal found 15/9£458

Tue 28/1001:45FAI - LHR

1 stop24h 45mDelta

Sun 2/1105:30LHR - FAI

2 stops27h 10mDelta

Deal found 16/9£495

Wed 29/1001:45FAI - LHR

1 stop24h 45mKLM

Thu 6/1106:30LHR - FAI

2 stops27h 10mKLM

Deal found 14/9£524

Thu 30/1001:45FAI - LHR

1 stop24h 45mKLM

Fri 7/1106:30LHR - FAI

2 stops27h 10mKLM

Deal found 16/9£490

Fri 31/1006:00ANC - LHR

1 stop20h 30mVirgin Atlantic

Fri 7/1112:20LHR - ANC

1 stop19h 27mVirgin Atlantic

Deal found 16/9£471

Fri 31/1006:05ANC - LHR

1 stop17h 00mKLM

Fri 7/1108:40LHR - ANC

2 stops18h 51mKLM

Deal found 16/9£493

One-way flights from Alaska to Heathrow
Search for one-way flight options from Alaska to Heathrow. Find affordable one-way fares based on user searches. Data last updated 17 September 2025.

Mon 27/1000:12ANC - LHR

2 stops33h 18mMultiple Airlines

Deal found 15/9£280

Mon 27/1002:26ANC - LHR

1 stop20h 34mAmerican Airlines

Deal found 15/9£328

Sat 27/916:45ANC - LHR

2 stops31h 50mAir Canada

Deal found 14/9£332

Tue 28/1021:07ANC - LHR

2 stops26h 03mAir Canada

Deal found 15/9£334

Tue 23/923:59ANC - LHR

2 stops21h 46mUnited Airlines

Deal found 15/9£335

Fri 26/921:04ANC - LHR

2 stops48h 31mAir Canada

Deal found 15/9£340

Wed 24/916:45ANC - LHR

2 stops19h 15mAir Canada

Deal found 15/9£347

Wed 24/923:45ANC - LHR

2 stops22h 00mUnited Airlines

Deal found 15/9£350

Tue 23/900:55ANC - LHR

2 stops21h 20mDelta

Deal found 15/9£371

Cheapflights 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 27/10

23:59-07:10

2 stops23h 11m

London Heathrow

Mon 10/11

13:50-19:59

2 stops39h 09m

£458

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 4/11

00:30-07:05

2 stops21h 35m

London Heathrow

Thu 20/11

06:20-16:42

2 stops19h 22m

£459

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 4/11

00:30-10:30

1 stop25h 00m

London Heathrow

Thu 20/11

12:20-22:49

1 stop19h 29m

£462

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 20/10

23:49-06:30

2 stops21h 41m

London Heathrow

Mon 27/10

15:30-22:56

2 stops39h 26m

£481

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Fri 7/11

21:07-07:55

1 stop25h 48m

London Heathrow

Fri 21/11

06:35-22:56

2 stops25h 21m

£488

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 6/11

21:07-05:55

1 stop23h 48m

London Heathrow

Fri 21/11

06:35-19:59

2 stops22h 24m

£488

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Thu 30/10

01:45-10:30

1 stop24h 45m

London Heathrow

Fri 7/11

06:30-00:40

2 stops27h 10m

£490

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Fri 3/10

14:15-14:15

1 stop15h 00m

London Heathrow

Tue 7/10

09:00-22:43

2 stops22h 43m

£493

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Tue 28/10

01:45-10:30

1 stop24h 45m

London Heathrow

Sun 2/11

05:30-00:40

2 stops27h 10m

£495

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Wed 29/10

01:45-10:30

1 stop24h 45m

London Heathrow

Thu 6/11

12:20-00:40

1 stop21h 20m

£529

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 26 results

Best time to book a flight from Alaska to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Alaska with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Alaska to London Heathrow Airport

What is the cheapest month to book a flight from Alaska to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £112). Flying from Alaska to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AK to LHR?

When flying from Alaska to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Alaska to London Heathrow Airport?

Related info for your journey

How long is the flight from Alaska to London Heathrow Airport?
United Airlines, Delta, and KLM can get you from Alaska to London Heathrow Airport in just under 21h 35m. Your travel time can differ by up to 3h 10m. Airlines will cover a distance of 4471 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Alaska to London Heathrow Airport?
While some choose either Fairbanks - London Heathrow or Juneau Intl - London Heathrow, Anchorage - London Heathrow is the most popular route from Alaska to London Heathrow Airport.
Can I find deals for flights from Alaska to Heathrow that include hotel bookings?
Yes. In addition to deals on Alaska to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Alaska to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Alaska to Heathrow.
Can I find deals for business class flights from Alaska to Heathrow?
Yes. Cheapflights offers flight deals from Alaska to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Alaska to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £112). Flying from Alaska to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Hounslow

Slough

Gatwick

Northampton

Luton

Deal

Wembley

Ilford

Crawley

Hayes

Watford

Winchester

Chichester

Ipswich

Swindon

Dartford

Guildford

Brentford

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Alaska to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£494	Average£635	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Fly with Cheapflights

How does Cheapflights help users find flights from Alaska to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Alaska to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Alaska to Heathrow?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Alaska to Heathrow.

Can Cheapflights find flights from Alaska to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Alaska shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Alaska to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Alaska to London Heathrow Airport from £280

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Alaska to Heathrow

Keep the following information in mind while searching for Alaska to Heathrow flight deals. Data was last updated 17 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Alaska to Heathrow

Cheapest flights from Alaska to HeathrowExplore the most affordable flight options available from Alaska to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Explore the most affordable flight options available from Alaska to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Alaska to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Alaska with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Alaska to London Heathrow Airport

What is the cheapest month to book a flight from Alaska to London Heathrow Airport?

What is the cheapest time of day to fly from AK to LHR?

Find hourly flight availability from Alaska to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2025.

How much does it cost for a return flight from Alaska to London Heathrow Airport?

Related info for your journey

Find useful and relevant information for your journey from Alaska to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Alaska to London Heathrow Airport?

What are the most popular routes from Alaska to London Heathrow Airport?

Can I find deals for flights from Alaska to Heathrow that include hotel bookings?

How can I find direct flights from Alaska to Heathrow?

Can I find deals for business class flights from Alaska to Heathrow?

What is the cheapest month to book a flight from Alaska to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Alaska to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Alaska to Heathrow

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Alaska to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Alaska to Heathrow?

Can Cheapflights find flights from Alaska to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Alaska to Heathrow become cheaper?

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Cheapest flights from Alaska to Heathrow
Explore the most affordable flight options available from Alaska to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.