Cheap flights from the United Kingdom to Alaska from £364

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ANC
7 Sep — 14 Sep1
1 adult

Cheap flight deals from United Kingdom to Alaska

Keep the following information in mind while searching for United Kingdom to Alaska flight deals. Data was last updated 2 September 2025.

Round-trip from

£670

One-way from

£364

Popular in

August

Cheapest in

April

Average price

£785
Icelandair
  • Icelandair
  • 30/9-7/10
  • 4 total stops
  • 52h 17m total
  • United Kingdom to Alaska
24/9
  • 24/9
  • 2 total stops
  • 22h 30m total
  • United Kingdom to Alaska
Highest demand for flights based on searches. 4% potential increase in price (£39 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from United Kingdom to Alaska

Cheapest flights from United Kingdom to Alaska
Explore the most affordable flight options available from United Kingdom to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2025.

Tue 30/921:25LHR - ANC
2 stops34h 22mIcelandair
Tue 7/1009:00ANC - LHR
2 stops17h 55mIcelandair
Deal found 31/8£670
Wed 15/1010:55LGW - ANC
2 stops46h 35mMultiple Airlines
Tue 21/1001:47ANC - LGW
2 stops24h 08mMultiple Airlines
Deal found 31/8£680
Fri 17/1015:40LGW - ANC
2 stops19h 19mIcelandair
Fri 24/1010:00ANC - LGW
2 stops19h 40mIcelandair
Deal found 2/9£686
Mon 29/921:25LHR - ANC
2 stops37h 18mIcelandair
Mon 13/1011:16ANC - LHR
2 stops39h 39mIcelandair
Deal found 1/9£694
Wed 15/1009:55LHR - ANC
2 stops21h 50mMultiple Airlines
Wed 22/1004:40ANC - LHR
2 stops20h 20mMultiple Airlines
Deal found 31/8£695
Thu 16/1013:05LHR - ANC
2 stops21h 54mIcelandair
Thu 23/1010:00ANC - LHR
2 stops16h 55mIcelandair
Deal found 1/9£697
Fri 17/1010:55LGW - ANC
1 stop22h 27mMultiple Airlines
Thu 23/1000:24ANC - LGW
1 stop25h 31mMultiple Airlines
Deal found 2/9£701
Mon 29/917:25LHR - FAI
1 stop18h 20mMultiple Airlines
Sun 5/1002:00FAI - LHR
1 stop27h 15mMultiple Airlines
Deal found 1/9£702
Wed 1/1011:00LHR - ANC
2 stops19h 47mMultiple Airlines
Wed 8/1006:00ANC - LHR
1 stop20h 20mMultiple Airlines
Deal found 1/9£705
Sat 13/921:25LHR - ANC
2 stops30h 22mMultiple Airlines
Wed 24/906:35ANC - LHR
2 stops20h 20mMultiple Airlines
Deal found 31/8£709
Tue 30/913:25LHR - FAI
1 stop22h 20mMultiple Airlines
Tue 7/1006:00FAI - LHR
1 stop20h 20mMultiple Airlines
Deal found 31/8£725
Mon 29/915:40LGW - ANC
2 stops29h 10mMultiple Airlines
Mon 13/1011:16ANC - LGW
2 stops18h 19mMultiple Airlines
Deal found 1/9£728

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Alaska 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 858,174 searches. Data last updated 2 September 2025.
Use the filters below to find and compare flights from the United Kingdom to Alaska that are best for you.

Fly from

United Kingdom

Fly to

Alaska

Route

Depart

Return

Price

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Tue 30/9

21:25-22:47

2 stops34h 22m

Anchorage

Tue 7/10

09:00-11:55

2 stops17h 55m

£670

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Wed 15/10

10:55-00:30

2 stops46h 35m

Anchorage

Tue 21/10

01:47-10:55

2 stops24h 08m

£680

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Fri 17/10

15:40-01:59

2 stops19h 19m

Anchorage

Fri 24/10

10:00-14:40

2 stops19h 40m

£686

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Mon 29/9

21:25-01:43

2 stops37h 18m

Anchorage

Mon 13/10

11:16-11:55

2 stops39h 39m

£694

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 15/10

09:55-22:45

2 stops21h 50m

Anchorage

Wed 22/10

04:40-10:00

2 stops20h 20m

£695

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Thu 16/10

13:05-01:59

2 stops21h 54m

Anchorage

Thu 23/10

10:00-11:55

2 stops16h 55m

£697

LondonAnchorage

LGW - ANC

LGWANC

London Gatwick

Fri 17/10

10:55-00:22

1 stop22h 27m

Anchorage

Thu 23/10

00:24-10:55

1 stop25h 31m

£701

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Mon 29/9

17:25-02:45

1 stop18h 20m

Fairbanks

Sun 5/10

02:00-14:15

1 stop27h 15m

£702

LondonFairbanks

LHR - FAI

LHRFAI

London Heathrow

Tue 30/9

13:25-22:47

1 stop18h 22m

Fairbanks

Mon 6/10

02:00-11:20

1 stop24h 20m

£702

LondonAnchorage

LHR - ANC

LHRANC

London Heathrow

Wed 1/10

11:00-21:47

2 stops19h 47m

Anchorage

Wed 8/10

06:00-11:20

1 stop20h 20m

£705

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 50 results
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Best time to book a flight from United Kingdom to Alaska

Have a flexible travel schedule? Discover the best time to fly to Alaska from United Kingdom 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 the United Kingdom to Alaska

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

Currently, January is the cheapest month in which you can book a flight from United Kingdom to Alaska (average of £987). Flying from United Kingdom to Alaska in July is currently the most expensive (average of £1,762). 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 GB to AK?

Find hourly flight availability from United Kingdom 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 2 September 2025.

When flying from United Kingdom 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.

Reviews of airlines servicing Alaska

Get insights into the airlines that provide service to Alaska. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Alaska. Reviews last updated 2 September 2025.
Read reviews from past customers who have flown with KLM, Virgin Atlantic, andIcelandair from the United Kingdom to Alaska. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom to Alaska?

    Airlines like Icelandair, Virgin Atlantic, and American Airlines fly from United Kingdom to Alaska in about 19h 59m. The time it takes to get you to your destination can typically vary by up to 14h 23m. The distance from United Kingdom to Alaska is about 4475 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from United Kingdom to Alaska that include hotel bookings?

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

  • How can I find direct flights from United Kingdom to Alaska?

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

  • Can I find deals for business class flights from United Kingdom to Alaska?

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Alaska?

    Currently, January is the cheapest month in which you can book a flight from United Kingdom to Alaska (average of £987). Flying from United Kingdom to Alaska in July is currently the most expensive (average of £1,762). 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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Alternative routes for United Kingdom to Alaska

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

Top 7 airlines flying from United Kingdom to Alaska

Discover the top 7 airlines that operate flights from United Kingdom to Alaska. 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 858,174 searches. Data last updated 2 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£532Average£743FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapest£631Average£852FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£704Average£1,325FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£797Average£1,257FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£1,045Average£1,249FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£1,058Average£1,271FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£1,059Average£1,368FlexibilityNo cancel feeOn-time75%
Search KLM flights

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

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

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