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Cheapest flights to Seattle
Explore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 17 April 2026.

Fri 24/709:50

LHR

-

SEA

Nonstop9h 45m

British Airways

Sat 8/813:30

SEA

-

LHR

Nonstop9h 15m

British Airways

Deal found 12/4£504

Fri 24/716:30

LHR

-

SEA

Nonstop9h 55m

British Airways

Sun 9/820:20

SEA

-

LHR

Nonstop9h 25m

British Airways

Deal found 12/4£506

Sat 27/617:45

LHR

-

SEA

Nonstop10h 16m

Virgin Atlantic

Tue 14/721:50

SEA

-

LHR

Nonstop9h 45m

Virgin Atlantic

Deal found 12/4£508

Sat 27/617:45

LHR

-

SEA

Nonstop10h 16m

Air France

Tue 14/718:20

SEA

-

LHR

Nonstop9h 50m

Air France

Deal found 12/4£510

Mon 29/617:45

LHR

-

SEA

Nonstop10h 16m

Virgin Atlantic

Sun 12/721:50

SEA

-

LHR

Nonstop9h 45m

Virgin Atlantic

Deal found 12/4£511

Wed 1/711:40

LHR

-

SEA

Nonstop10h 20m

Virgin Atlantic

Fri 10/718:20

SEA

-

LHR

Nonstop9h 50m

Virgin Atlantic

Deal found 13/4£511

Fri 1/509:50

LHR

-

SEA

Nonstop9h 45m

British Airways

Wed 6/520:20

SEA

-

LHR

Nonstop9h 25m

British Airways

Deal found 14/4£515

Sat 16/511:40

LHR

-

SEA

Nonstop10h 20m

Virgin Atlantic

Mon 1/618:20

SEA

-

LHR

Nonstop9h 50m

Virgin Atlantic

Deal found 16/4£516

Mon 27/409:50

LHR

-

SEA

Nonstop9h 45m

British Airways

Mon 4/520:20

SEA

-

LHR

Nonstop9h 25m

British Airways

Deal found 14/4£517

Mon 4/509:50

LHR

-

SEA

Nonstop9h 45m

British Airways

Sun 10/520:20

SEA

-

LHR

Nonstop9h 25m

British Airways

Deal found 14/4£518

Tue 22/911:40

LHR

-

SEA

Nonstop10h 20m

Virgin Atlantic

Thu 8/1020:10

SEA

-

LHR

Nonstop9h 50m

Virgin Atlantic

Deal found 13/4£519

Thu 18/617:45

LHR

-

SEA

Nonstop10h 16m

Virgin Atlantic

Tue 30/622:05

SEA

-

LHR

Nonstop9h 30m

Virgin Atlantic

Deal found 12/4£520

Best time to book a flight to Seattle

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

LON-SEA

LHR-SEA

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.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 11/5

17:45-20:11

Nonstop10h 26m

Seattle/Tacoma Intl

Wed 7/10

21:50-15:35

Nonstop9h 45m

£551

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 1/9

17:45-20:13

Nonstop10h 28m

Seattle/Tacoma Intl

Mon 16/11

16:48-10:30

Nonstop9h 42m

£559

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 4/6

17:45-20:01

Nonstop10h 16m

Seattle/Tacoma Intl

Thu 11/6

20:10-14:00

Nonstop9h 50m

£568

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 17/6

11:40-14:00

Nonstop10h 20m

Seattle/Tacoma Intl

Fri 17/7

18:20-12:10

Nonstop9h 50m

£575

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 14/5

17:45-20:11

Nonstop10h 26m

Seattle/Tacoma Intl

Wed 27/5

18:20-12:10

Nonstop9h 50m

£576

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 12/6

17:45-20:01

Nonstop10h 16m

Seattle/Tacoma Intl

Mon 22/6

22:05-15:35

Nonstop9h 30m

£576

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 11/5

17:45-20:11

Nonstop10h 26m

Seattle/Tacoma Intl

Sun 24/5

18:20-12:10

Nonstop9h 50m

£579

Fastest return journey

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 4/6

17:00-18:50

Nonstop9h 50m

Seattle/Tacoma Intl

Sat 13/6

21:45-15:05

Nonstop9h 20m

£582

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 28/5

17:45-20:11

Nonstop10h 26m

Seattle/Tacoma Intl

Sat 6/6

18:20-12:10

Nonstop9h 50m

£582

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 11/6

17:45-20:01

Nonstop10h 16m

Seattle/Tacoma Intl

Sun 5/7

18:20-12:10

Nonstop9h 50m

£582

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 20 resultsSorted by cheapest first

1

2

Reviews of airlines flying non-stop to Seattle

Check out reviews from past customers who have flown KLM,Virgin Atlantic, andAir France to the United States to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

7.8

Good

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

7.8

Good

7.8

Good

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Virgin Atlantic

7.5

Good

7.8

Good

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

7.4

Good

7.8

Good

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

7.0

Good

7.8

Good

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

British Airways

6.7

Okay

7.8

Good

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

FAQ about direct flights to Seattle

How much are direct flights to Seattle?
On average, a one-way direct flight to Seattle will cost users approximately £625. If you're looking for a direct return flight to Seattle, you can expect to pay around £4,062.
Which airlines fly direct to Seattle?
At the moment, Virgin Atlantic, British Airways, KLM, Air France, Finnair, Aer Lingus, American Airlines, Delta, Alaska Airlines, Iberia offer direct flights to Seattle. Virgin Atlantic is currently the most popular airline that flies direct to Seattle.
How long is a direct flight to Seattle?
While the flight duration depends heavily on the origin, travellers can expect non-stop flights to Seattle to last approximately 9h 45m on average. The quickest direct flight to Seattle at this time departs from London Heathrow Airport (9h 45m), while the longest leaves from London Heathrow Airport (9h 45m).
What is the best time of year to fly direct to Seattle?
If you're seeking the lowest price on a direct flight to Seattle, February is worth consideration, as prices are usually at their lowest, on average. January may be most appealing to users looking for the quietest time to visit Seattle, when demand is typically at its lowest.
What is the most popular direct flight origin to Seattle?
Currently, the most popular direct flight origin to Seattle is London Heathrow Airport. A return direct flight from London Heathrow Airport to Seattle typically costs around £2,343.

See more FAQs

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