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$339+ Cheap flights from Alaska to Heathrow (LHR)

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — LHR
Jul 18 — Jul 251
Sat 7/18
Sat 7/25
1 adult, Economy
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Cheap 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 June 18, 2026.

This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:30 am
ANC
-
LHR
1 stop19h 05m
Delta
Wed 10/286:30 am
LHR
-
ANC
2 stops24h 06m
Delta
Deal found 6/16$887
This Expedia deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:05 am
ANC
-
LHR
1 stop23h 00m
Alaska Airlines
Wed 10/282:45 pm
LHR
-
ANC
1 stop18h 54m
Alaska Airlines
Deal found 6/16$898
This FlightHub deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:40 pm
ANC
-
LHR
2 stops30h 50m
Multiple Airlines
Thu 8/276:55 am
LHR
-
ANC
2 stops26h 04m
Multiple Airlines
Deal found 6/13$939
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:15 am
ANC
-
LHR
1 stop18h 55m
Delta
Wed 9/96:30 am
LHR
-
ANC
2 stops23h 30m
Delta
Deal found 6/15$940
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:15 am
ANC
-
LHR
1 stop22h 20m
Delta
Wed 8/198:40 am
LHR
-
ANC
2 stops21h 20m
Delta
Deal found 6/18$941
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:00 am
ANC
-
LHR
1 stop20h 20m
Alaska Airlines
Sun 11/152:45 pm
LHR
-
ANC
1 stop16h 05m
Alaska Airlines
Deal found 6/15$947
This KLM deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:15 am
ANC
-
LHR
1 stop22h 20m
KLM
Wed 8/1911:40 am
LHR
-
ANC
1 stop21h 15m
KLM
Deal found 6/18$962
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:42 pm
FAI
-
LHR
1 stop15h 53m
Delta
Fri 8/2111:45 am
LHR
-
FAI
2 stops21h 49m
Delta
Deal found 6/17$993
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/131:00 am
FAI
-
LHR
1 stop23h 40m
United Airlines
Fri 8/212:50 pm
LHR
-
FAI
1 stop17h 09m
United Airlines
Deal found 6/17$1,021
This Alaska Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:22 am
SIT
-
LHR
2 stops15h 58m
Alaska Airlines
Thu 11/122:45 pm
LHR
-
SIT
2 stops36h 50m
Alaska Airlines
Deal found 6/14$1,111
This Alaska Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:04 pm
JNU
-
LHR
1 stop13h 16m
Alaska Airlines
Thu 11/122:45 pm
LHR
-
JNU
3 stops38h 23m
Alaska Airlines
Deal found 6/14$1,111
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/162:37 pm
FAI
-
LHR
1 stop15h 58m
Delta
Thu 7/2311:30 am
LHR
-
FAI
2 stops22h 00m
Delta
Deal found 6/16$1,161

Find flight deals from Alaska to Heathrow

Keep the following information in mind while searching for Alaska to Heathrow flight deals. Data was last updated June 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$887
(Delta)

One-way from

$339
(Alaska Airlines)

Popular in

June

Cheapest in

August

Average price

$1,477
Provider with most accurate pricing for Anchorage-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Anchorage-London (LON) flights.
Search Deals
From Alaska to London Heathrow
Search Deals
One-way flight from Alaska to London Heathrow
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Alaska to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2026.
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

Cheapest round-trip

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 9/2

8:15 am-12:10 pm

1 stop18h 55m

London Heathrow

Wed 9/9

6:30 am-9:00 pm

2 stops23h 30m

$940

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 8/17

8:15 am-3:35 pm

1 stop22h 20m

London Heathrow

Thu 8/27

8:40 am-9:20 pm

2 stops21h 40m

$940

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Mon 8/3

8:15 am-3:35 pm

1 stop22h 20m

London Heathrow

Wed 8/19

11:40 am-11:55 pm

1 stop21h 15m

$962

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 8/19

8:15 am-12:10 pm

1 stop18h 55m

London Heathrow

Sat 9/19

11:45 am-12:01 am

2 stops21h 16m

$990

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 9/1

8:00 pm-6:30 am

2 stops25h 30m

London Heathrow

Sat 9/5

6:55 am-7:35 pm

2 stops21h 40m

$995

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Tue 9/1

8:15 am-6:50 pm

3 stops25h 35m

London Heathrow

Sat 9/5

6:40 am-11:58 pm

2 stops26h 18m

$1,012

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Wed 11/11

8:55 pm-7:10 am

2 stops25h 15m

London Heathrow

Sun 11/15

7:30 am-10:39 pm

2 stops24h 09m

$1,029

AnchorageLondon

ANC - LHR

ANCLHR

Anchorage

Thu 8/20

2:22 pm-3:35 pm

1 stop16h 13m

London Heathrow

Sun 8/30

6:30 am-9:00 pm

2 stops23h 30m

$1,041

SitkaLondon

SIT - LHR

SITLHR

Sitka

Sun 11/8

11:22 am-12:20 pm

2 stops15h 58m

London Heathrow

Thu 11/12

2:45 pm-6:35 pm

2 stops36h 50m

$1,111

JuneauLondon

JNU - LHR

JNULHR

Juneau Intl

Sun 11/8

2:04 pm-12:20 pm

1 stop13h 16m

London Heathrow

Thu 11/12

2:45 pm-8:08 pm

3 stops38h 23m

$1,111

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 27 resultsSorted by cheapest first
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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 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 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 $683). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of $1,575). 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.

How much does it cost to fly round-trip 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?

    Airlines like Delta, KLM, and United Airlines fly from Alaska to London Heathrow Airport in about 18h 55m. The time it takes to get you to your destination can typically vary by up to 4h 45m. There are 4471 mi between Alaska and London Heathrow Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular flight routes from Alaska to London Heathrow Airport are Anchorage - London Heathrow, Juneau Intl - London Heathrow and Fairbanks - London Heathrow.

  • 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 vacation 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 $683). Flying from Alaska to London Heathrow Airport in June is currently the most expensive (average of $1,575). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

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.

Top 2 airlines flying from Alaska to Heathrow

Discover the top 2 airlines that operate flights from Alaska to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$757Average$1,209FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$926Average$1,687FlexibilityNo cancel feeOn-time70%

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