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Cheap flights from London Heathrow Airport to Alaska from £489

LHR — ANC
22 Sep — 29 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Alaska

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Alaska

Sat 3/1006:40 -
2 stops22h 35m
Sun 11/1006:30 -
2 stops24h 30m
Deal found 20/8£574
Sat 26/906:40 -
2 stops22h 35m
Tue 29/908:00 -
2 stops23h 00m
Deal found 19/8£578
Fri 9/1018:40 -
2 stops35h 01m
Sun 11/1006:30 -
2 stops41h 50m
Deal found 22/8£581
Tue 22/906:40 -
3 stops26h 47m
Fri 25/906:12 -
2 stops24h 48m
Deal found 19/8£586
Mon 26/1006:30 -
2 stops23h 06m
Sat 28/1105:00 -
3 stops21h 50m
Deal found 20/8£832
Thu 5/1106:40 -
3 stops27h 05m
Wed 18/1101:42 -
3 stops29h 18m
Deal found 19/8£849
Sat 3/1021:25 -
2 stops37h 12m
Sat 10/1005:36 -
2 stops21h 19m
Deal found 19/8£857
Thu 17/917:00 -
1 stop17h 48m
Wed 23/901:28 -
1 stop28h 37m
Deal found 20/8£859
Wed 16/1212:15 -
2 stops21h 03m
Thu 25/205:50 -
2 stops28h 40m
Deal found 19/8£867
Thu 17/906:30 -
2 stops23h 25m
Thu 24/905:30 -
2 stops20h 10m
Deal found 20/8£877
Wed 7/1013:05 -
2 stops21h 32m
Wed 14/1005:36 -
2 stops21h 19m
Deal found 20/8£929
Thu 8/1021:25 -
2 stops37h 12m
Thu 15/1005:36 -
2 stops29h 44m
Deal found 20/8£943

Find flight deals from Heathrow to Alaska

Round-trip from

£574

One-way from

£489

Popular in

December

Cheapest in

October

Average price

£887
Scandinavian Airlines
  • Scandinavian Airlines
  • 3/10-11/10
  • 4 total stops
  • 47h 05m total
  • London to Alaska
Search Deals
15/9
  • 15/9
  • 3 total stops
  • 38h 24m total
  • London to Alaska
Search Deals
High demand for flights, 0% potential price rise
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 August 2026
Search Deals

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

Cheapest return flight

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Tue 22/9

06:40-00:27

3 stops26h 47m

Anchorage

Fri 25/9

08:00-16:00

2 stops23h 00m

£590

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Fri 9/10

07:05-00:35

3 stops26h 30m

Anchorage

Sat 10/10

01:40-16:00

2 stops29h 20m

£594

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Fri 2/10

06:40-20:15

2 stops22h 35m

Anchorage

Thu 8/10

01:40-16:25

3 stops29h 45m

£594

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sun 4/10

06:40-00:27

3 stops26h 47m

Anchorage

Sun 11/10

06:30-17:40

2 stops26h 10m

£597

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sat 3/10

06:40-00:27

3 stops26h 47m

Anchorage

Sat 10/10

06:30-19:55

3 stops28h 25m

£600

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sat 19/9

18:10-00:17

2 stops39h 07m

Anchorage

Sat 26/9

16:01-15:05

1 stop14h 04m

£895

LondonAnchorage

LHR London Heathrow - ANC Anchorage

LHRANC

London Heathrow

Sat 3/10

18:50-11:50

2 stops50h 00m

Anchorage

Sat 10/10

16:01-15:05

1 stop14h 04m

£950

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Wed 16/12

14:45-00:18

1 stop18h 33m

Fairbanks

Wed 24/2

01:30-10:40

1 stop24h 10m

£1,010

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Thu 5/11

12:15-01:50

2 stops22h 35m

Fairbanks

Wed 18/11

01:31-19:30

2 stops32h 59m

£1,016

LondonFairbanks

LHR London Heathrow - FAI Fairbanks

LHRFAI

London Heathrow

Thu 8/10

17:00-01:37

1 stop17h 37m

Fairbanks

Sun 11/10

01:17-15:05

1 stop28h 48m

£1,025

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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

Cheapflights Insights

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

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 £900 and £1,185 in October.
The cheapest return price found within the last 5 days was £574 on Scandinavian Airlines (3 Oct–11 Oct).

Reviews of airlines servicing Alaska

Read reviews from past customers who have flown with Alaska Airlines,Scandinavian Airlines, andIcelandair from London Heathrow Airport to Alaska. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,834 reviews
Check prices

Crew

8.5

Entertainment

7.0

Boarding

8.1

Food

7.0

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Alaska Airlines
7.9
Good
12,834 reviews
Alaska Airlines
7.9
Good
12,834 reviews
Check prices

Crew

8.5

Entertainment

7.0

Boarding

8.1

Food

7.0

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Scandinavian Airlines
7.4
Good
1,959 reviews
Alaska Airlines
7.9
Good
12,834 reviews
Check prices

Crew

8.5

Entertainment

7.0

Boarding

8.1

Food

7.0

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Icelandair
6.9
Okay
733 reviews
Alaska Airlines
7.9
Good
12,834 reviews
Check prices

Crew

8.5

Entertainment

7.0

Boarding

8.1

Food

7.0

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

Related info for your journey

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

    Airlines like Scandinavian Airlines and Alaska Airlines fly from London Heathrow Airport to Alaska in about 17h 37m. The time it takes to get you to your destination can typically vary by up to 9h 10m. There are 4213 mi between London Heathrow Airport and Alaska. 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 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Heathrow to Alaska

AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£578Average£685FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapest£620Average£840FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Alaska AirlinesCheapest£817Average£1,069FlexibilityNo cancel feeOn-time75%
Search Alaska 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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