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

Airlines like Icelandair and Scandinavian Airlines fly from London Heathrow Airport to Alaska in about 28h 19m. The time it takes to get you to your destination can typically vary by up to 5h 54m. There are 4471 mi between London Heathrow Airport and Alaska. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Alaska ranges from 0.5 - 3.3 inches per month. August is typically the wettest month, when rainfall can reach 3.3 in. April is typically the driest time to visit Alaska when rainfall is around 0.5 in.

If weather is an important factor for your trip to Alaska, 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 59.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).

How far in advance should I book a flight from London Heathrow Airport to Alaska?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 45 days in advance, which can save you up to 42% on flights from London Heathrow Airport to Alaska compared to booking the week you need them. Waiting 45 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,223. For sooner than that we have options available in the next 3 days from $1,873.

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

The best pricing can be found in the month of April. Prices to Alaska from London Heathrow Airport average $1,374. You can even find prices in April for less than $1,374, as users have found deals to Alaska from as low as $840. The month of January appears to be one of the more expensive times to travel to Alaska from London Heathrow Airport. Flying in the targeted month can save you up to 18%.

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

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

How can I find direct flights from Heathrow to Alaska?

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

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

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

$812+ Cheap Flights from London Heathrow Airport to Alaska

Q: How much does it cost to fly round-trip from London Heathrow Airport to Alaska?

Airfare is below average for this route at the moment. London Heathrow Airport to Alaska flights typically cost between $978 and $1,455 in October. The cheapest round-trip price found within the last 3 days was $905 on Icelandair (Oct 29-Nov 5).

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Cheap flight deals from Heathrow to Alaska

Round-trip from	$905 (oojo)
One-way from	$812 (Kiwi.com)
Popular in	January
Cheapest in	April
Average price	$1,053

From London Heathrow to Alaska

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One-way flight from London Heathrow to Alaska

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Highest demand for flights based on searches. 5% potential increase in price ($83 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Heathrow to Alaska

Cheapest flights from Heathrow to Alaska
Explore the most affordable flight options available from Heathrow to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Wed 10/298:35 pmLHR - ANC

2 stops34h 13mIcelandair

Wed 11/58:00 amANC - LHR

2 stops17h 50mIcelandair

Deal found 9/14

$905

Wed 10/2912:15 pmLHR - ANC

2 stops20h 42mMultiple Airlines

Wed 11/55:05 amANC - LHR

2 stops20h 45mMultiple Airlines

Deal found 9/13

$924

Tue 10/149:25 pmLHR - ANC

2 stops34h 20mIcelandair

Sun 10/198:00 amANC - LHR

2 stops18h 55mIcelandair

Deal found 9/14

$934

Sun 10/129:25 pmLHR - ANC

2 stops58h 20mIcelandair

Sun 10/198:00 amANC - LHR

2 stops18h 55mIcelandair

Deal found 9/13

$944

Wed 10/2912:20 pmLHR - FAI

1 stop17h 38mMultiple Airlines

Wed 11/55:55 amFAI - LHR

2 stops28h 45mMultiple Airlines

Deal found 9/14

$951

Mon 11/38:35 pmLHR - ANC

2 stops34h 13mIcelandair

Mon 11/178:00 amANC - LHR

2 stops26h 30mIcelandair

Deal found 9/12

$960

Mon 10/139:25 pmLHR - ANC

2 stops36h 02mMultiple Airlines

Mon 10/208:00 amANC - LHR

2 stops18h 55mMultiple Airlines

Deal found 9/13

$1,007

Sun 10/126:40 amLHR - ANC

3 stops28h 19mScandinavian Airlines

Sun 10/196:00 amANC - LHR

3 stops27h 30mScandinavian Airlines

Deal found 9/13

$1,011

Thu 10/95:00 pmLHR - ANC

2 stops38h 43mScandinavian Airlines

Sun 10/196:00 amANC - LHR

2 stops30h 40mScandinavian Airlines

Deal found 9/13

$1,017

Thu 11/1312:15 pmLHR - ANC

2 stops18h 33mIcelandair

Mon 11/178:00 amANC - LHR

2 stops26h 30mIcelandair

Deal found 9/13

$1,024

Mon 9/229:25 pmLHR - ANC

2 stops37h 18mIcelandair

Sat 9/279:40 amANC - LHR

2 stops41h 15mIcelandair

Deal found 9/14

$1,025

Sat 10/119:25 pmLHR - FAI

2 stops38h 10mIcelandair

Sat 10/183:53 pmFAI - LHR

2 stops35h 02mIcelandair

Deal found 9/13

$1,025

Best flights from Heathrow to Alaska
Discover carefully curated flight deals from Heathrow to Alaska that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Wed 10/298:35 pmLHR - ANC

2 stops34h 13mIcelandair

Wed 11/58:00 amANC - LHR

2 stops17h 50mIcelandair

Deal found 9/14

$905

Wed 10/2912:20 pmLHR - FAI

1 stop17h 38mMultiple Airlines

Wed 11/55:55 amFAI - LHR

2 stops28h 45mMultiple Airlines

Deal found 9/14

$951

Sun 10/126:40 amLHR - ANC

3 stops28h 19mScandinavian Airlines

Sun 10/196:00 amANC - LHR

3 stops27h 30mScandinavian Airlines

Deal found 9/13

$1,011

Tue 10/149:25 pmLHR - ANC

2 stops34h 20mIcelandair

Sun 10/198:00 amANC - LHR

2 stops18h 55mIcelandair

Deal found 9/14

$934

Tue 10/145:00 pmLHR - ANC

2 stops38h 43mScandinavian Airlines

Sun 10/196:00 amANC - LHR

2 stops30h 40mScandinavian Airlines

Deal found 9/13

$1,017

Wed 10/2912:15 pmLHR - ANC

2 stops20h 42mMultiple Airlines

Tue 11/42:23 amANC - LHR

2 stops23h 27mMultiple Airlines

Deal found 9/14

$1,038

Sat 10/115:00 pmLHR - ANC

2 stops38h 43mScandinavian Airlines

Sun 10/196:00 amANC - LHR

2 stops30h 40mScandinavian Airlines

Deal found 9/13

$1,017

Sat 10/119:25 pmLHR - FAI

2 stops38h 10mIcelandair

Sat 10/183:53 pmFAI - LHR

2 stops35h 02mIcelandair

Deal found 9/13

$1,025

Fri 2/2712:15 pmLHR - FAI

2 stops19h 30mMultiple Airlines

Thu 3/57:00 amFAI - LHR

2 stops18h 50mMultiple Airlines

Deal found 9/14

$1,096

Fri 10/176:40 amLHR - ANC

3 stops28h 19mScandinavian Airlines

Fri 10/246:00 amANC - LHR

3 stops27h 30mScandinavian Airlines

Deal found 9/13

$1,025

Tue 10/141:25 pmLHR - ANC

1 stop16h 11mMultiple Airlines

Sat 10/1812:34 amANC - LHR

2 stops24h 41mMultiple Airlines

Deal found 9/14

$1,166

Wed 10/86:40 amLHR - ANC

2 stops25h 03mScandinavian Airlines

Wed 10/226:00 amANC - LHR

2 stops25h 00mScandinavian Airlines

Deal found 9/14

$1,090

Last-minute flights from Heathrow to Alaska
Discover last-minute flight deals from Heathrow to Alaska. Data last updated September 15, 2025 and is based on user searches.

Mon 9/229:25 pmLHR - ANC

2 stops37h 18mIcelandair

Sat 9/279:40 amANC - LHR

2 stops41h 15mIcelandair

Deal found 9/14

$1,025

Wed 10/86:40 amLHR - ANC

2 stops25h 03mScandinavian Airlines

Wed 10/226:00 amANC - LHR

2 stops25h 00mScandinavian Airlines

Deal found 9/13

$1,089

Thu 10/95:00 pmLHR - ANC

2 stops38h 43mScandinavian Airlines

Sun 10/196:00 amANC - LHR

2 stops30h 40mScandinavian Airlines

Deal found 9/13

$1,017

Sat 10/119:25 pmLHR - FAI

2 stops38h 10mIcelandair

Sat 10/183:53 pmFAI - LHR

2 stops35h 02mIcelandair

Deal found 9/13

$1,025

Sun 10/129:25 pmLHR - ANC

2 stops58h 20mIcelandair

Sun 10/198:00 amANC - LHR

2 stops18h 55mIcelandair

Deal found 9/13

$944

Sun 10/126:40 amLHR - ANC

3 stops28h 19mScandinavian Airlines

Sun 10/196:00 amANC - LHR

3 stops27h 30mScandinavian Airlines

Deal found 9/13

$1,011

Mon 10/139:25 pmLHR - ANC

2 stops36h 02mMultiple Airlines

Mon 10/208:00 amANC - LHR

2 stops18h 55mMultiple Airlines

Deal found 9/13

$1,007

Tue 10/149:25 pmLHR - ANC

2 stops34h 20mIcelandair

Sun 10/198:00 amANC - LHR

2 stops18h 55mIcelandair

Deal found 9/14

$934

Tue 10/2811:20 amLHR - FAI

2 stops23h 21mMultiple Airlines

Tue 11/412:11 pmFAI - LHR

1 stop15h 39mMultiple Airlines

Deal found 9/13

$1,427

Wed 10/298:35 pmLHR - ANC

2 stops34h 13mIcelandair

Wed 11/58:00 amANC - LHR

2 stops17h 50mIcelandair

Deal found 9/14

$905

Wed 10/2912:15 pmLHR - ANC

2 stops20h 42mMultiple Airlines

Wed 11/55:05 amANC - LHR

2 stops20h 45mMultiple Airlines

Deal found 9/13

$924

Wed 10/2912:20 pmLHR - FAI

1 stop17h 38mMultiple Airlines

Wed 11/55:55 amFAI - LHR

2 stops28h 45mMultiple Airlines

Deal found 9/14

$951

One-way flights from Heathrow to Alaska
Search for one-way flight options from Heathrow to Alaska. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Tue 9/232:10 pmLHR - ANC

2 stops29h 50mMultiple Airlines

Deal found 9/13

$812

Tue 9/239:15 amLHR - ANC

1 stop20h 33mBritish Airways

Deal found 9/14

$969

Mon 9/229:25 pmLHR - ANC

2 stops37h 18mMultiple Airlines

Deal found 9/13

$1,005

Thu 10/91:05 pmLHR - ANC

2 stops21h 54mIcelandair

Deal found 9/13

$1,012

Thu 10/911:05 amLHR - ANC

1 stop17h 52mLufthansa

Deal found 9/14

$1,094

Tue 9/2311:05 amLHR - ANC

1 stop17h 42mLufthansa

Deal found 9/13

$1,207

Cheapflights Fare Finder

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

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 10/29

8:35 pm-10:48 pm

2 stops34h 13m

Anchorage

Wed 11/5

8:00 am-10:50 am

2 stops17h 50m

$905

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 10/14

9:25 pm-10:45 pm

2 stops34h 20m

Anchorage

Sun 10/19

8:00 am-11:55 am

2 stops18h 55m

$934

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Wed 10/29

12:20 pm-9:58 pm

1 stop17h 38m

Fairbanks

Wed 11/5

5:55 am-7:40 pm

2 stops28h 45m

$951

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sun 10/12

6:40 am-1:59 am

3 stops28h 19m

Anchorage

Sun 10/19

6:00 am-6:30 pm

3 stops27h 30m

$1,011

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 10/14

5:00 pm-10:43 pm

2 stops38h 43m

Anchorage

Sun 10/19

6:00 am-9:40 pm

2 stops30h 40m

$1,017

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Sat 10/11

5:00 pm-10:43 pm

2 stops38h 43m

Anchorage

Sun 10/19

6:00 am-9:40 pm

2 stops30h 40m

$1,017

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Sat 10/11

9:25 pm-2:35 am

2 stops38h 10m

Fairbanks

Sat 10/18

3:53 pm-11:55 am

2 stops35h 02m

$1,025

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 10/17

6:40 am-1:59 am

3 stops28h 19m

Anchorage

Fri 10/24

6:00 am-6:30 pm

3 stops27h 30m

$1,025

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 10/29

12:15 pm-12:57 am

2 stops20h 42m

Anchorage

Tue 11/4

2:23 am-10:50 am

2 stops23h 27m

$1,038

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 10/8

6:40 am-10:43 pm

2 stops25h 03m

Anchorage

Wed 10/22

6:00 am-4:00 pm

2 stops25h 00m

$1,090

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 19 results

Best time to book a flight from Heathrow to Alaska

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

Estimated round-trip 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 London Heathrow Airport to Alaska

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Alaska (average of $456). Flying from London Heathrow Airport to Alaska in July is currently the most expensive (average of $642). 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 LHR to AK?

When flying from London Heathrow Airport to Alaska, 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 to fly round-trip from London Heathrow Airport to Alaska?

Reviews of airlines servicing Alaska

See what other customers who have flown with Delta from London Heathrow Airport to Alaska have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,956 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Delta

8.0

Very good

7,956 reviews

Delta

8.0

Very good

7,956 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

How long is the flight from London Heathrow Airport to Alaska?
Airlines like Icelandair and Scandinavian Airlines fly from London Heathrow Airport to Alaska in about 28h 19m. The time it takes to get you to your destination can typically vary by up to 5h 54m. There are 4471 mi between London Heathrow Airport and Alaska. This flight may include one or multiple stops.
Can I find deals for flights from Heathrow to Alaska that include hotel bookings?
Yes. In addition to deals on Heathrow to Alaska flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Heathrow to Alaska?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Alaska.
Can I find deals for business class flights from Heathrow to Alaska?
Yes. Cheapflights offers flight deals from Heathrow to Alaska 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 London Heathrow Airport to Alaska?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Alaska (average of $456). Flying from London Heathrow Airport to Alaska in July is currently the most expensive (average of $642). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Heathrow to Alaska

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$1,401	Average$2,070	FlexibilityNo cancel fee	On-timeN/A

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$812+ Cheap flights from Heathrow (LHR) to Alaska

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Heathrow to Alaska with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Heathrow to Alaska

Keep the following information in mind while searching for Heathrow to Alaska flight deals. Data was last updated September 15, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Alaska

Cheapest flights from Heathrow to AlaskaExplore the most affordable flight options available from Heathrow to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Explore the most affordable flight options available from Heathrow to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Alaska

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Heathrow to Alaska. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

How much does it cost to fly round-trip from London Heathrow Airport to Alaska?

Reviews of airlines servicing Alaska

See what other customers who have flown with Delta from London Heathrow Airport to Alaska have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Alaska. 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 London Heathrow Airport to Alaska?

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

How can I find direct flights from Heathrow to Alaska?

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

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

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 Heathrow to Alaska

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

Top airline flying from Heathrow to Alaska

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Book with Flexibility

Travel Smart

Cheapest flights from Heathrow to Alaska
Explore the most affordable flight options available from Heathrow to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.