Direct flights to Seattle | Cheapflights

Find flight deals to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 25 March 2026.

Fri 17/409:50

LHR

-

SEA

Nonstop9h 45m

British Airways

Mon 20/420:20

SEA

-

LHR

Nonstop9h 25m

British Airways

Deal found 21/3£505

Wed 8/409:50

LHR

-

SEA

Nonstop9h 45m

British Airways

Wed 22/413:30

SEA

-

LHR

Nonstop9h 15m

British Airways

Deal found 24/3£528

Fri 26/617:45

LHR

-

SEA

Nonstop10h 16m

Virgin Atlantic

Mon 29/622:05

SEA

-

LHR

Nonstop9h 30m

Virgin Atlantic

Deal found 21/3£562

Sat 13/617:45

LHR

-

SEA

Nonstop10h 16m

Virgin Atlantic

Wed 24/622:05

SEA

-

LHR

Nonstop9h 30m

Virgin Atlantic

Deal found 22/3£573

Wed 22/417:45

LHR

-

SEA

Nonstop10h 19m

Virgin Atlantic

Wed 29/418:20

SEA

-

LHR

Nonstop9h 50m

Virgin Atlantic

Deal found 23/3£574

Thu 28/517:45

LHR

-

SEA

Nonstop10h 26m

Virgin Atlantic

Mon 8/622:05

SEA

-

LHR

Nonstop9h 30m

Virgin Atlantic

Deal found 23/3£578

Tue 21/417:45

LHR

-

SEA

Nonstop10h 19m

Virgin Atlantic

Tue 28/418:20

SEA

-

LHR

Nonstop9h 50m

Virgin Atlantic

Deal found 24/3£580

Tue 21/411:40

LHR

-

SEA

Nonstop10h 20m

Virgin Atlantic

Sun 26/418:20

SEA

-

LHR

Nonstop9h 50m

Virgin Atlantic

Deal found 21/3£581

Thu 28/511:40

LHR

-

SEA

Nonstop10h 20m

Virgin Atlantic

Thu 4/620:10

SEA

-

LHR

Nonstop9h 50m

Virgin Atlantic

Deal found 23/3£583

Mon 27/417:45

LHR

-

SEA

Nonstop10h 19m

Virgin Atlantic

Wed 6/518:20

SEA

-

LHR

Nonstop9h 50m

Virgin Atlantic

Deal found 23/3£584

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

Fastest return journey

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 5/6

09:50-11:35

Nonstop9h 45m

Seattle/Tacoma Intl

Wed 24/6

13:30-06:45

Nonstop9h 15m

£623

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 20/5

11:40-14:00

Nonstop10h 20m

Seattle/Tacoma Intl

Thu 4/6

22:05-15:35

Nonstop9h 30m

£625

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 9/6

17:45-20:01

Nonstop10h 16m

Seattle/Tacoma Intl

Mon 22/6

22:05-15:35

Nonstop9h 30m

£625

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 8/6

11:40-14:00

Nonstop10h 20m

Seattle/Tacoma Intl

Mon 22/6

22:05-15:35

Nonstop9h 30m

£625

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 12/6

11:40-14:00

Nonstop10h 20m

Seattle/Tacoma Intl

Mon 22/6

18:20-12:10

Nonstop9h 50m

£640

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 18/5

17:45-20:11

Nonstop10h 26m

Seattle/Tacoma Intl

Thu 4/6

20:10-14:00

Nonstop9h 50m

£653

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 11/5

17:45-20:11

Nonstop10h 26m

Seattle/Tacoma Intl

Thu 21/5

20:10-14:00

Nonstop9h 50m

£655

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 18/9

16:30-18:25

Nonstop9h 55m

Seattle/Tacoma Intl

Thu 1/10

13:30-06:45

Nonstop9h 15m

£675

Cheapest one-way

Fastest single journey

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 21/9

09:50-11:35

Nonstop9h 45m

£426

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 21/9

17:00-18:55

Nonstop9h 55m

£428

Flights are sorted by cheapest return flights first.

Deals found on 21/3

Showing 1-10 of 18 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 £1,240. If you're looking for a direct return flight to Seattle, you can expect to pay around £4,108.
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 £2,196.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Popular United States destinations

Popular North America destinations

Popular Seattle routes

Airlines

United States origins

Direct flights to United States

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.