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

Delta, KLM, and Icelandair can get you from Alaska to London Heathrow Airport in just under 19h 45m. Your travel time can differ by up to 4h 25m. 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 Sitka - London Heathrow or Fairbanks - 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.

£283+ Flights from Alaska to London Heathrow Airport

Find flight deals from Alaska to Heathrow

Enter your travel dates to find the best prices.

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 7 November 2025.

Wed 12/1106:05ANC - LHR

1 stop16h 00mDelta

Tue 18/1106:20LHR - ANC

2 stops21h 26mDelta

Deal found 5/11£449

Tue 11/1100:30ANC - LHR

1 stop25h 00mKLM

Tue 18/1108:40LHR - ANC

2 stops19h 06mKLM

Deal found 5/11£450

Thu 13/1111:22ANC - LHR

1 stop16h 28mDelta

Thu 20/1106:20LHR - ANC

2 stops21h 26mDelta

Deal found 6/11£487

Fri 7/1106:05ANC - LHR

1 stop16h 00mDelta

Fri 21/1106:20LHR - ANC

2 stops21h 26mDelta

Deal found 5/11£487

Fri 7/1123:59ANC - LHR

2 stops35h 36mUnited Airlines

Fri 21/1106:35LHR - ANC

2 stops25h 21mUnited Airlines

Deal found 6/11£489

Fri 7/1106:05ANC - LHR

1 stop16h 00mKLM

Fri 21/1112:20LHR - ANC

1 stop19h 29mKLM

Deal found 6/11£492

Fri 7/1106:05ANC - LHR

1 stop16h 00mKLM

Sun 9/1108:40LHR - ANC

2 stops19h 06mKLM

Deal found 7/11£525

Sun 21/1201:50FAI - LHR

2 stops20h 15mDelta

Mon 29/1208:55LHR - FAI

2 stops24h 50mDelta

Deal found 6/11£1,397

Mon 22/1205:45FAI - LHR

2 stops24h 50mMultiple Airlines

Mon 29/1213:45LHR - FAI

2 stops18h 17mMultiple Airlines

Deal found 6/11£1,670

Sat 20/1206:50JNU - LHR

2 stops18h 10mAmerican Airlines

Sat 27/1209:25LHR - JNU

1 stop24h 43mAmerican Airlines

Deal found 4/11£1,799

Fri 19/1202:28JNU - LHR

2 stops21h 52mMultiple Airlines

Sat 27/1209:25LHR - JNU

2 stops21h 07mMultiple Airlines

Deal found 4/11£1,952

Mon 22/1212:15FAI - LHR

1 stop15h 05mAmerican Airlines

Mon 29/1215:45LHR - FAI

2 stops20h 05mAmerican Airlines

Deal found 6/11£2,245

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 7 November 2025.

Tue 24/205:45ANC - LHR

1 stop19h 45mDelta

Mon 9/306:20LHR - ANC

2 stops22h 10mDelta

Deal found 6/11£493

Mon 23/201:20ANC - LHR

1 stop24h 10mKLM

Mon 9/306:30LHR - ANC

2 stops22h 00mKLM

Deal found 6/11£493

Mon 2/207:00JNU - LHR

1 stop20h 20mMultiple Airlines

Sat 14/209:25LHR - JNU

1 stop14h 47mMultiple Airlines

Deal found 6/11£690

Mon 6/407:00FAI - LHR

2 stops19h 55mIcelandair

Tue 14/413:05LHR - FAI

2 stops18h 36mIcelandair

Deal found 6/11£735

Mon 6/407:00FAI - LHR

2 stops18h 30mAmerican Airlines

Tue 14/409:50LHR - FAI

1 stop24h 50mAmerican Airlines

Deal found 6/11£804

Thu 26/209:30JNU - LHR

3 stops17h 50mAlaska Airlines

Mon 2/314:55LHR - JNU

2 stops15h 28mAlaska Airlines

Deal found 5/11£881

Sun 5/401:30FAI - LHR

1 stop22h 30mDelta

Tue 14/409:55LHR - FAI

2 stops23h 11mDelta

Deal found 6/11£703

Thu 16/401:30FAI - LHR

1 stop22h 30mDelta

Tue 21/408:40LHR - FAI

2 stops24h 26mDelta

Deal found 4/11£758

Thu 26/207:10JNU - LHR

2 stops20h 10mAmerican Airlines

Mon 2/314:55LHR - JNU

2 stops15h 28mAmerican Airlines

Deal found 5/11£881

Fri 17/411:05SIT - LHR

2 stops17h 40mAlaska Airlines

Tue 21/409:50LHR - SIT

2 stops17h 30mAlaska Airlines

Deal found 4/11£1,084

Last-minute flights from Alaska to Heathrow
Discover last-minute flight deals from Alaska to Heathrow. Data last updated 7 November 2025 and is based on user searches.

Wed 12/1106:05ANC - LHR

1 stop16h 00mDelta

Tue 18/1106:20LHR - ANC

2 stops21h 26mDelta

Deal found 5/11£449

Wed 12/1106:00ANC - LHR

1 stop19h 30mKLM

Tue 18/1111:05LHR - ANC

1 stop16h 41mKLM

Deal found 5/11£454

Wed 12/1100:30ANC - LHR

1 stop25h 00mKLM

Thu 20/1106:30LHR - ANC

2 stops19h 12mKLM

Deal found 6/11£487

Thu 13/1111:22ANC - LHR

1 stop16h 28mDelta

Thu 20/1106:20LHR - ANC

2 stops21h 26mDelta

Deal found 6/11£487

Thu 13/1123:59ANC - LHR

2 stops21h 31mMultiple Airlines

Thu 20/1118:00LHR - ANC

3 stops34h 59mMultiple Airlines

Deal found 6/11£3,948

Fri 19/1202:28JNU - LHR

2 stops21h 52mMultiple Airlines

Sat 27/1209:25LHR - JNU

1 stop24h 43mMultiple Airlines

Deal found 4/11£1,952

Sat 20/1206:50JNU - LHR

2 stops18h 10mAmerican Airlines

Sat 27/1209:25LHR - JNU

1 stop24h 43mAmerican Airlines

Deal found 4/11£1,799

Sun 21/1201:50FAI - LHR

2 stops20h 15mDelta

Mon 29/1208:55LHR - FAI

2 stops24h 50mDelta

Deal found 6/11£1,397

Mon 22/1205:45FAI - LHR

2 stops24h 50mMultiple Airlines

Mon 29/1213:45LHR - FAI

2 stops18h 17mMultiple Airlines

Deal found 6/11£1,670

Mon 22/1212:15FAI - LHR

1 stop15h 05mAmerican Airlines

Mon 29/1215:45LHR - FAI

2 stops20h 05mAmerican Airlines

Deal found 6/11£2,245

Mon 22/1205:45FAI - LHR

1 stop21h 35mBritish Airways

Mon 29/1214:55LHR - FAI

1 stop16h 31mBritish Airways

Deal found 6/11£2,263

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 7 November 2025.

Sat 10/116:54ANC - LHR

3 stops58h 56mMultiple Airlines

Deal found 6/11£283

Sat 10/123:45ANC - LHR

1 stop24h 55mUnited Airlines

Deal found 6/11£300

Tue 9/1223:59ANC - LHR

1 stop24h 41mUnited Airlines

Deal found 5/11£303

Mon 8/1202:22ANC - LHR

1 stop19h 38mAmerican Airlines

Deal found 6/11£318

Wed 29/410:00ANC - LHR

2 stops25h 20mIcelandair

Deal found 6/11£372

Tue 28/401:30ANC - LHR

2 stops19h 55mDelta

Deal found 7/11£394

Mon 8/1202:22ANC - LHR

2 stops19h 08mMultiple Airlines

Deal found 6/11£441

Mon 15/1200:53ANC - LHR

2 stops35h 42mMultiple Airlines

Deal found 6/11£509

Tue 16/1206:05ANC - LHR

2 stops20h 35mDelta

Deal found 6/11£559

Cheap flight deals from Alaska to Heathrow

Round-trip from	£493
One-way from	£283
Popular in	December
Cheapest in	April
Average price	£816

Delta
24/2-9/3
3 total stops
41h 55m total
Alaska to London

Search Deals

10/1
3 total stops
58h 56m total
Alaska to London

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (£17 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2025

Search Deals

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

Tue 24/2

05:45-10:30

1 stop19h 45m

London Heathrow

Mon 9/3

06:20-20:30

2 stops22h 10m

£493

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 23/2

01:20-10:30

1 stop24h 10m

London Heathrow

Mon 9/3

06:30-20:30

2 stops22h 00m

£493

JuneauLondon

JNU - LHR

JNULHR

Juneau Intl

Mon 2/2

07:00-12:20

1 stop20h 20m

London Heathrow

Sat 14/2

09:25-15:12

1 stop14h 47m

£690

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Sun 5/4

01:30-09:00

1 stop22h 30m

London Heathrow

Tue 14/4

09:55-00:06

2 stops23h 11m

£703

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Mon 6/4

07:00-11:55

2 stops19h 55m

London Heathrow

Tue 14/4

13:05-22:41

2 stops18h 36m

£735

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Thu 16/4

01:30-09:00

1 stop22h 30m

London Heathrow

Tue 21/4

08:40-00:06

2 stops24h 26m

£758

FairbanksLondon

FAI - LHR

FAILHR

Fairbanks

Mon 6/4

07:00-10:30

2 stops18h 30m

London Heathrow

Tue 14/4

09:50-01:40

1 stop24h 50m

£804

JuneauLondon

JNU - LHR

JNULHR

Juneau Intl

Thu 26/2

09:30-12:20

3 stops17h 50m

London Heathrow

Mon 2/3

14:55-21:23

2 stops15h 28m

£881

JuneauLondon

JNU - LHR

JNULHR

Juneau Intl

Thu 26/2

07:10-12:20

2 stops20h 10m

London Heathrow

Mon 2/3

14:55-21:23

2 stops15h 28m

£881

SitkaLondon

SIT - LHR

SITLHR

Sitka

Fri 17/4

11:05-13:45

2 stops17h 40m

London Heathrow

Tue 21/4

09:50-18:20

2 stops17h 30m

£1,084

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 17 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, August is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £535). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £903). 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 fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 49% versus a flight at midday.

Related info for your journey

How long is the flight from Alaska to London Heathrow Airport?
Delta, KLM, and Icelandair can get you from Alaska to London Heathrow Airport in just under 19h 45m. Your travel time can differ by up to 4h 25m. 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 Sitka - London Heathrow or Fairbanks - 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, August is the cheapest month in which you can book a flight from Alaska to London Heathrow Airport (average of £535). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of £903). 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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Slough

Gatwick

Hounslow

Northampton

Luton

Ilford

Wembley

Deal

Hayes

Colchester

Watford

Winchester

Swindon

Crawley

Brentford

Romford

Chichester

Ipswich

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£532	Average£662	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 £283

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

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 7 November 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 7 November 2025.

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 7 November 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 7 November 2025.

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 7 November 2025.