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

Airlines like Icelandair fly from London Heathrow Airport to Alaska in about 34h 13m. The time it takes to get you to your destination can typically vary by up to . There are 4471 mi between London Heathrow Airport and Alaska.

In terms of precipitation, rainfall in Alaska ranges from 13.0 - 84.0 inches per month. August is typically the wettest month, when rainfall can reach 84.0 mm. April is typically the driest time to visit Alaska when rainfall is around 13.0 mm.

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 15.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -8.0 C).

What are the most popular airlines that fly from London Heathrow Airport to Alaska?

Before booking your flight from London Heathrow Airport to Alaska check out the most popular airlines for this route: British Airways, Icelandair or Lufthansa.

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 holiday 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.

£450+ Cheap Flights from London Heathrow Airport to Alaska

Q: How much does it cost for a return flight 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 £720 and £1,071 in October. The cheapest return flight price found within the last 3 days was £618 on Icelandair (14 Oct-21 Oct).

Cheap flight deals from Heathrow to Alaska

Round-trip from	£618
One-way from	£450
Popular in	January
Cheapest in	April
Average price	£775

Icelandair
14/10-21/10
4 total stops
51h 15m total
London to Alaska

Search Deals

4/11
3 total stops
40h 27m total
London to Alaska

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£45 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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 16 September 2025.

Tue 14/1021:25LHR - ANC

2 stops34h 20mIcelandair

Tue 21/1010:00ANC - LHR

2 stops16h 55mIcelandair

Deal found 15/9£618

Fri 7/1111:20LHR - ANC

1 stop22h 10mMultiple Airlines

Sat 22/1100:09ANC - LHR

1 stop31h 41mMultiple Airlines

Deal found 15/9£628

Wed 29/1020:35LHR - ANC

2 stops34h 13mIcelandair

Wed 5/1108:00ANC - LHR

2 stops17h 50mIcelandair

Deal found 14/9£666

Fri 7/1112:15LHR - ANC

2 stops18h 33mIcelandair

Sun 23/1109:00ANC - LHR

2 stops25h 30mIcelandair

Deal found 15/9£667

Wed 29/1012:15LHR - ANC

2 stops20h 42mMultiple Airlines

Wed 5/1105:05ANC - LHR

2 stops20h 45mMultiple Airlines

Deal found 13/9£680

Tue 14/1021:25LHR - ANC

2 stops34h 20mIcelandair

Sun 19/1008:00ANC - LHR

2 stops18h 55mIcelandair

Deal found 14/9£687

Wed 15/1009:55LHR - ANC

2 stops21h 50mMultiple Airlines

Wed 22/1004:40ANC - LHR

2 stops20h 20mMultiple Airlines

Deal found 15/9£692

Wed 29/1012:20LHR - FAI

1 stop17h 38mMultiple Airlines

Wed 5/1105:55FAI - LHR

2 stops28h 45mMultiple Airlines

Deal found 14/9£700

Fri 31/1012:15LHR - ANC

2 stops18h 33mIcelandair

Fri 7/1105:05ANC - LHR

2 stops29h 25mIcelandair

Deal found 16/9£702

Wed 15/1006:40LHR - ANC

2 stops25h 03mScandinavian Airlines

Wed 22/1006:00ANC - LHR

3 stops27h 30mScandinavian Airlines

Deal found 15/9£739

Tue 7/1021:10LHR - FAI

2 stops48h 21mMultiple Airlines

Tue 21/1012:13FAI - LHR

2 stops18h 42mMultiple Airlines

Deal found 15/9£965

Tue 7/1012:25LHR - FAI

2 stops21h 15mVirgin Atlantic

Mon 20/1001:45FAI - LHR

2 stops26h 25mVirgin Atlantic

Deal found 15/9£1,089

Best flights from Heathrow to Alaska
Discover carefully curated flight deals from Heathrow to Alaska that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Wed 29/1020:35LHR - ANC

2 stops34h 13mIcelandair

Wed 5/1108:00ANC - LHR

2 stops17h 50mIcelandair

Deal found 14/9£666

Fri 7/1106:30LHR - ANC

2 stops27h 00mMultiple Airlines

Sat 22/1100:09ANC - LHR

2 stops25h 36mMultiple Airlines

Deal found 15/9£681

Wed 15/1006:40LHR - ANC

2 stops25h 03mScandinavian Airlines

Wed 22/1006:00ANC - LHR

3 stops27h 30mScandinavian Airlines

Deal found 15/9£739

Tue 7/1017:25LHR - FAI

1 stop16h 15mVirgin Atlantic

Mon 20/1001:45FAI - LHR

2 stops22h 10mVirgin Atlantic

Deal found 15/9£1,089

Tue 14/1021:25LHR - ANC

2 stops34h 20mIcelandair

Sun 19/1008:00ANC - LHR

2 stops18h 55mIcelandair

Deal found 14/9£687

Wed 29/1012:20LHR - FAI

1 stop17h 38mMultiple Airlines

Wed 5/1105:55FAI - LHR

2 stops28h 45mMultiple Airlines

Deal found 14/9£700

Fri 17/1006:40LHR - ANC

3 stops28h 19mScandinavian Airlines

Fri 24/1006:00ANC - LHR

3 stops27h 30mScandinavian Airlines

Deal found 13/9£754

Fri 31/1012:15LHR - ANC

2 stops18h 33mIcelandair

Fri 7/1105:05ANC - LHR

2 stops29h 25mIcelandair

Deal found 16/9£702

Wed 29/1012:15LHR - ANC

2 stops20h 42mMultiple Airlines

Tue 4/1102:23ANC - LHR

2 stops23h 27mMultiple Airlines

Deal found 14/9£764

Wed 8/1006:40LHR - ANC

2 stops25h 03mScandinavian Airlines

Wed 22/1006:00ANC - LHR

2 stops25h 00mScandinavian Airlines

Deal found 14/9£802

Thu 13/1112:15LHR - ANC

2 stops18h 33mIcelandair

Mon 17/1108:00ANC - LHR

2 stops26h 30mIcelandair

Deal found 13/9£754

Fri 27/212:15LHR - FAI

2 stops19h 30mMultiple Airlines

Thu 5/307:00FAI - LHR

2 stops18h 50mMultiple Airlines

Deal found 14/9£806

Tue 7/1021:10LHR - FAI

2 stops48h 21mMultiple Airlines

Tue 21/1012:13FAI - LHR

2 stops18h 42mMultiple Airlines

Deal found 15/9£965

Last-minute flights from Heathrow to Alaska
Discover last-minute flight deals from Heathrow to Alaska. Data last updated 16 September 2025 and is based on user searches.

Mon 22/921:25LHR - ANC

2 stops37h 18mIcelandair

Sat 27/909:40ANC - LHR

2 stops41h 15mIcelandair

Deal found 14/9£754

Tue 7/1021:10LHR - FAI

2 stops48h 21mMultiple Airlines

Tue 21/1012:13FAI - LHR

2 stops18h 42mMultiple Airlines

Deal found 15/9£965

Tue 7/1012:25LHR - FAI

2 stops21h 15mVirgin Atlantic

Mon 20/1001:45FAI - LHR

2 stops26h 25mVirgin Atlantic

Deal found 15/9£1,089

Wed 8/1006:40LHR - ANC

2 stops25h 03mScandinavian Airlines

Wed 22/1006:00ANC - LHR

2 stops25h 00mScandinavian Airlines

Deal found 14/9£802

Tue 14/1021:25LHR - ANC

2 stops34h 20mIcelandair

Tue 21/1010:00ANC - LHR

2 stops16h 55mIcelandair

Deal found 15/9£618

Tue 14/1021:25LHR - ANC

2 stops34h 20mIcelandair

Sun 19/1008:00ANC - LHR

2 stops18h 55mIcelandair

Deal found 14/9£687

Wed 15/1009:55LHR - ANC

2 stops21h 50mMultiple Airlines

Wed 22/1004:40ANC - LHR

2 stops20h 20mMultiple Airlines

Deal found 15/9£692

Wed 15/1006:40LHR - ANC

2 stops25h 03mScandinavian Airlines

Wed 22/1006:00ANC - LHR

3 stops27h 30mScandinavian Airlines

Deal found 15/9£739

Wed 29/1020:35LHR - ANC

2 stops34h 13mIcelandair

Wed 5/1108:00ANC - LHR

2 stops17h 50mIcelandair

Deal found 14/9£666

Wed 29/1012:15LHR - ANC

2 stops20h 42mMultiple Airlines

Wed 5/1105:05ANC - LHR

2 stops20h 45mMultiple Airlines

Deal found 13/9£680

Wed 29/1012:20LHR - FAI

1 stop17h 38mMultiple Airlines

Wed 5/1105:55FAI - LHR

2 stops28h 45mMultiple Airlines

Deal found 14/9£700

Fri 31/1012:15LHR - ANC

2 stops18h 33mIcelandair

Fri 7/1105:05ANC - LHR

2 stops29h 25mIcelandair

Deal found 16/9£702

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 16 September 2025.

Tue 4/1109:55LHR - ANC

3 stops40h 27mMultiple Airlines

Deal found 15/9£450

Tue 23/920:50LHR - ANC

3 stops33h 34mMultiple Airlines

Deal found 14/9£642

Sun 19/1014:10LHR - ANC

2 stops37h 36mMultiple Airlines

Deal found 15/9£646

Tue 23/909:15LHR - ANC

1 stop20h 33mBritish Airways

Deal found 14/9£713

Thu 9/1013:05LHR - ANC

2 stops18h 40mIcelandair

Deal found 14/9£745

Thu 9/1011:05LHR - ANC

1 stop17h 52mLufthansa

Deal found 14/9£805

Sun 19/1018:30LHR - ANC

1 stop16h 29mScandinavian Airlines

Deal found 15/9£870

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 29/10

20:35-22:48

2 stops34h 13m

Anchorage

Wed 5/11

08:00-10:50

2 stops17h 50m

£666

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 7/11

06:30-00:30

2 stops27h 00m

Anchorage

Sat 22/11

00:09-10:45

2 stops25h 36m

£681

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 14/10

21:25-22:45

2 stops34h 20m

Anchorage

Sun 19/10

08:00-11:55

2 stops18h 55m

£687

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Wed 29/10

12:20-21:58

1 stop17h 38m

Fairbanks

Wed 5/11

05:55-19:40

2 stops28h 45m

£700

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 31/10

12:15-22:48

2 stops18h 33m

Anchorage

Fri 7/11

05:05-19:30

2 stops29h 25m

£702

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 15/10

06:40-22:43

2 stops25h 03m

Anchorage

Wed 22/10

06:00-18:30

3 stops27h 30m

£739

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Thu 13/11

12:15-21:48

2 stops18h 33m

Anchorage

Mon 17/11

08:00-19:30

2 stops26h 30m

£754

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Fri 17/10

06:40-01:59

3 stops28h 19m

Anchorage

Fri 24/10

06:00-18:30

3 stops27h 30m

£754

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 29/10

12:15-00:57

2 stops20h 42m

Anchorage

Tue 4/11

02:23-10:50

2 stops23h 27m

£764

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 8/10

06:40-22:43

2 stops25h 03m

Anchorage

Wed 22/10

06:00-16:00

2 stops25h 00m

£802

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 20 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 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 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 £987). Flying from London Heathrow Airport to Alaska in July is currently the most expensive (average of £1,736). 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 for a return flight from London Heathrow Airport to Alaska?

Reviews of airlines servicing Alaska

Read reviews from past customers who have flown with United Airlines, Virgin Atlantic, andIcelandair from London Heathrow Airport to Alaska. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,924 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

8,924 reviews

United Airlines

7.4

Good

8,924 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Virgin Atlantic

7.4

Good

664 reviews

United Airlines

7.4

Good

8,924 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Icelandair

7.0

Good

544 reviews

United Airlines

7.4

Good

8,924 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Lufthansa

6.8

Okay

7,407 reviews

United Airlines

7.4

Good

8,924 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

British Airways

6.7

Okay

7,363 reviews

United Airlines

7.4

Good

8,924 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

How long is the flight from London Heathrow Airport to Alaska?
Airlines like Icelandair fly from London Heathrow Airport to Alaska in about 34h 13m. The time it takes to get you to your destination can typically vary by up to . There are 4471 mi between London Heathrow Airport and Alaska.
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 holiday 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 £987). Flying from London Heathrow Airport to Alaska in July is currently the most expensive (average of £1,736). 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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Complete your trip

Alaska car hire

Anchorage Airport car hire

Fairbanks Airport car hire

Juneau Intl Airport car hire

Ketchikan Airport car hire

Sitka Airport car hire

Kenai Airport car hire

Petersburg Airport car hire

Valdez Airport car hire

Kotzebue Ralph Wien Airport car hire

Anchorage car hire

Fairbanks car hire

Direct flights to United States

Top 6 airlines flying from Heathrow to Alaska

Airline	Cheapest	Average	Flexibility	On-time
Scandinavian Airlines	Cheapest£530	Average£775	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Icelandair	Cheapest£646	Average£765	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£701	Average£1,091	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£794	Average£1,239	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Virgin Atlantic	Cheapest£1,040	Average£1,197	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£1,054	Average£1,253	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Alaska. 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 Heathrow to Alaska?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Alaska from Heathrow.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Alaska with no change fees.

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

Yes, Cheapflights offers price alerts on Heathrow to Alaska flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from London Heathrow Airport to Alaska from £450

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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.

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 16 September 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 16 September 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 16 September 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 16 September 2025.

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

Reviews of airlines servicing Alaska

Read reviews from past customers who have flown with United Airlines, Virgin Atlantic, andIcelandair from London Heathrow Airport to Alaska. Reviews also offer insight into each airline's 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 6 airlines flying from Heathrow to Alaska

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 Heathrow to Alaska?

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

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

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

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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 16 September 2025.