How long is the flight from Alaska to London?

Alaska Airlines, Delta, and Condor can get you from Alaska to London in just under 20h 57m. Your travel time can differ by up to 3h 25m. The distance from Alaska to London is about 4495 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, 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?

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

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

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

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

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

How can I find direct flights from Alaska to London?

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

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

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

£238+ Cheap Flights from Alaska to London

Cheap flight deals from Alaska to London

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Alaska to London
Explore the most affordable flight options available from Alaska to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.

Mon 2/1102:55 -

1 stop24h 25m

Tue 10/1114:45 -

1 stop17h 59m

Deal found 30/9£644

Sun 25/1016:01 -

1 stop36h 19m

Tue 10/1114:45 -

1 stop17h 01m

Deal found 2/10£676

Tue 3/1106:30 -

1 stop19h 10m

Tue 10/1108:55 -

2 stops23h 29m

Deal found 30/9£680

Tue 1/1201:15 -

1 stop24h 25m

Wed 9/1206:30 -

2 stops25h 58m

Deal found 2/10£680

Sat 5/1202:56 -

1 stop24h 24m

Thu 17/1214:45 -

1 stop28h 09m

Deal found 30/9£688

Tue 6/1001:59 -

1 stop28h 06m

Wed 14/1017:00 -

1 stop15h 39m

Deal found 30/9£701

Mon 16/1106:06 -

1 stop19h 34m

Mon 23/1120:25 -

2 stops35h 59m

Deal found 2/10£701

Wed 11/1106:06 -

2 stops24h 39m

Mon 16/1110:00 -

2 stops24h 39m

Deal found 30/9£726

Mon 16/1109:03 -

2 stops20h 57m

Mon 23/1110:25 -

2 stops22h 17m

Deal found 2/10£763

Sun 1/1110:02 -

2 stops19h 58m

Sat 7/1110:25 -

2 stops19h 23m

Deal found 1/10£843

Mon 7/1206:05 -

2 stops24h 40m

Mon 21/1210:00 -

2 stops24h 49m

Deal found 5/10£866

Sat 31/1011:34 -

2 stops20h 11m

Fri 6/1110:00 -

2 stops19h 41m

Deal found 3/10£972

Best flights from Alaska to London
Discover carefully curated flight deals from Alaska to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Sun 10/102:58 -

1 stop24h 22m

Fri 15/114:45 -

1 stop18h 40m

Deal found 30/9£663

Tue 1/1201:15 -

1 stop24h 25m

Wed 9/1206:30 -

2 stops25h 58m

Deal found 2/10£680

Tue 2/309:00 -

1 stop15h 40m

Thu 4/310:25 -

1 stop17h 50m

Deal found 4/10£683

Mon 16/1109:03 -

2 stops20h 57m

Mon 23/1110:25 -

2 stops22h 17m

Deal found 2/10£763

Sat 31/1011:34 -

2 stops20h 11m

Fri 6/1110:00 -

2 stops19h 41m

Deal found 3/10£972

Sat 14/1116:22 -

2 stops37h 38m

Sat 21/1120:15 -

2 stops34h 44m

Deal found 30/9£978

Mon 1/309:20 -

3 stops42h 00m

Thu 4/314:45 -

1 stop18h 43m

Deal found 30/9£676

Sat 13/323:45 -

2 stops27h 15m

Fri 19/315:00 -

2 stops36h 15m

Deal found 1/10£684

Sun 6/1201:15 -

2 stops24h 15m

Tue 22/1206:30 -

2 stops25h 58m

Deal found 5/10£711

Sun 25/1016:01 -

1 stop36h 19m

Tue 10/1114:45 -

1 stop17h 01m

Deal found 2/10£676

Wed 11/1106:06 -

2 stops22h 39m

Mon 16/1106:30 -

2 stops23h 28m

Deal found 30/9£722

Sat 31/1008:02 -

1 stop20h 18m

Fri 6/1114:45 -

1 stop16h 00m

Deal found 3/10£714

Wed 11/1106:06 -

2 stops24h 39m

Mon 16/1110:00 -

2 stops24h 39m

Deal found 30/9£726

Mon 7/1206:05 -

2 stops24h 40m

Mon 21/1210:00 -

2 stops24h 49m

Deal found 5/10£866

Sun 25/1023:21 -

2 stops33h 09m

Tue 10/1117:25 -

2 stops40h 24m

Deal found 2/10£1,180

Tue 3/1117:28 -

2 stops54h 42m

Tue 10/1117:25 -

2 stops41h 22m

Deal found 30/9£1,182

Sun 18/1007:02 -

2 stops30h 23m

Sun 1/1106:30 -

2 stops37h 36m

Deal found 1/10£1,252

Find flight deals from Alaska to London

Round-trip from	£644
One-way from	£238
Popular in	June
Cheapest in	March
Average price	£696

Alaska Airlines
2/11-10/11
2 total stops
42h 24m total
Alaska to London

Search Deals

Virgin Atlantic
8/3-31/12
1 total stop
19h 40m total
Alaska to London

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£108 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Mon 8/3

06:00-16:30

2 stops25h 30m

London Heathrow

Wed 31/12

00:00-13:00

Nonstop0h 00m

£239

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Sat 6/2

20:31-07:55

1 stop26h 24m

London Heathrow

Wed 31/12

00:00-13:00

Nonstop0h 00m

£248

AnchorageLondon

ANC Anchorage - LGW London Gatwick

ANCLGW

Anchorage

Mon 8/3

06:00-15:45

2 stops24h 45m

London Gatwick

Wed 31/12

00:00-13:00

Nonstop0h 00m

£248

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Mon 8/3

06:00-12:50

3 stops21h 50m

London Heathrow

Wed 31/12

00:00-13:00

Nonstop0h 00m

£360

AnchorageLondon

ANC Anchorage - LGW London Gatwick

ANCLGW

Anchorage

Mon 8/3

06:00-16:55

3 stops25h 55m

London Gatwick

Wed 31/12

00:00-13:00

Nonstop0h 00m

£387

AnchorageLondon

ANC Anchorage - LGW London Gatwick

ANCLGW

Anchorage

Mon 12/10

07:02-19:30

3 stops27h 28m

London Gatwick

Wed 31/12

00:00-13:00

Nonstop0h 00m

£395

AnchorageLondon

ANC Anchorage - LGW London Gatwick

ANCLGW

Anchorage

Tue 13/10

12:24-20:20

3 stops22h 56m

London Gatwick

Wed 31/12

00:00-13:00

Nonstop0h 00m

£625

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Sun 10/1

02:58-12:20

1 stop24h 22m

London Heathrow

Fri 15/1

14:45-00:25

1 stop18h 40m

£663

JuneauLondon

JNU Juneau Intl - LHR London Heathrow

JNULHR

Juneau Intl

Mon 1/3

09:20-12:20

3 stops42h 00m

London Heathrow

Thu 4/3

14:45-00:28

1 stop18h 43m

£676

AnchorageLondon

ANC Anchorage - LHR London Heathrow

ANCLHR

Anchorage

Sun 25/10

16:01-12:20

1 stop36h 19m

London Heathrow

Tue 10/11

14:45-22:46

1 stop17h 01m

£676

Flights are sorted by cheapest return flights first.

Deals found on 30/9

Showing 1-10 of 27 resultsSorted by cheapest first

Best time to book a flight from Alaska to London

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

ANC-LHR

ANC-LGW

JNU-LHR

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

USAK-LON

ANC-LHR

ANC-LGW

JNU-LHR

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

Currently, November is the cheapest month in which you can book a flight from Alaska to London (average of £602). Flying from Alaska to London in June is currently the most expensive (average of £1,274). 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.

Related info for your journey

How long is the flight from Alaska to London?
Alaska Airlines, Delta, and Condor can get you from Alaska to London in just under 20h 57m. Your travel time can differ by up to 3h 25m. The distance from Alaska to London is about 4495 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most popular routes from Alaska to London?
While some choose either Anchorage - London Gatwick or Fairbanks - London Heathrow, Anchorage - London Heathrow is the most popular route from Alaska to London.
Can I find deals for flights from Alaska to London that include hotel bookings?
Yes. In addition to deals on Alaska to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Alaska to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Alaska to London.
Can I find deals for business class flights from Alaska to London?
Yes. Cheapflights offers flight deals from Alaska to London 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?
Currently, November is the cheapest month in which you can book a flight from Alaska to London (average of £602). Flying from Alaska to London in June is currently the most expensive (average of £1,274). 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.

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

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Alaska to London for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from Alaska to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from Alaska to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Alaska to London from £238

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Alaska to London

Cheapest flights from Alaska to LondonExplore the most affordable flight options available from Alaska to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.

Explore the most affordable flight options available from Alaska to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.

Best flights from Alaska to LondonDiscover carefully curated flight deals from Alaska to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Discover carefully curated flight deals from Alaska to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Last-minute flights from Alaska to LondonDiscover last-minute flight deals from Alaska to London. Data last updated 5 October 2026 and is based on user searches.

Discover last-minute flight deals from Alaska to London. Data last updated 5 October 2026 and is based on user searches.

One-way flights from Alaska to LondonSearch for one-way flight options from Alaska to London. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

Search for one-way flight options from Alaska to London. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

Find flight deals from Alaska to London

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Best time to book a flight from Alaska to London

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

Cheapflights Insights

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

Related info for your journey

How long is the flight from Alaska to London?

What are the most popular routes from Alaska to London?

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

How can I find direct flights from Alaska to London?

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

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

Travelling to a place near London?

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 London

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Complete your trip

Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Alaska to London by cabin class

Find flights from Alaska to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 October 2026.

Alaska and London flights

Browse other Alaska and London flight options. Last updated on 5 October 2026.

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

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

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Cheapest flights from Alaska to London
Explore the most affordable flight options available from Alaska to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.

Best flights from Alaska to London
Discover carefully curated flight deals from Alaska to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Last-minute flights from Alaska to London
Discover last-minute flight deals from Alaska to London. Data last updated 5 October 2026 and is based on user searches.

One-way flights from Alaska to London
Search for one-way flight options from Alaska to London. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.