Find flights
When to book
FAQs & Tips
Reviews
Deals

SEA

Find cheap KLM flights to Seattle from £509

1 adult
0 bags
Tue 2/7
Tue 9/7

Search hundreds of travel sites at once for deals on KLM flights to Seattle

In the last 7 days, travellers have searched 42,335,261 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Good to know

Low season

January

High season

July

Cheapest flight

£509

Average price round-trip

£717
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (37% more expensive on average)
Flight from London Heathrow Airport to Seattle
(price for this month)

When to book flights with KLM to Seattle

Average price per month
Flight prices as travel date approaches

FAQs for flying to Seattle with KLM

  • Which other airlines fly to Seattle?

    Along with KLM, you can also fly to Seattle with Iberia.

  • Which airport do KLM flights to Seattle fly into?

    You’ll fly into Seattle/Tacoma Airport when flying to Seattle with KLM.

  • Are there any other airlines in SkyTeam that fly to Seattle?

    Unfortunately, there are no other airlines in SkyTeam that fly to Seattle.

KLM customer reviews

7.8
GoodBased on 1,507 verified guest reviews
8.4Crew
7.9Boarding
7.3Food
7.2Entertainment
7.7Comfort
Traveller rating:
Sort by:
R
4.3 Mediocre
Pros:staff was fine
Cons:old old plane, very uncomfortable. Tiny bad screen made movies pointless
C
8.8 Very Good
Cons:The flight was a bit delayed, but the airline handled it incredibly well. I was put up in a great hotel with good free food and caught another flight the next morning.
R
7.0 Good
Pros:newer plane, good staff
Cons:need better and more food options, more often
A
3.0 Poor
Cons:The plane was very hot
C
10.0 Wonderful
Pros:Crew was awesome
Cons:.
A
7.0 Good
Pros:Service - Crew
Cons:Nothing
A
10.0 Wonderful
Pros:The flight was perfect! Great food,movies and I even got to sleep !
Cons:All was well!
A
10.0 Wonderful
Pros:Everything is top notch for an airline company.
Cons:Nothing.... I enjoyed every moment of the flight.
A
8.0 Very Good
Pros:Crew was nice and efficient
Cons:Economy seats don’t recline enough.
A
6.3 Okay
Cons:I had booked a paid seat with extra legroom, but at check in the seat was given to another passenger
Read more about KLM

Book Cheap flights with KLM to Seattle

Recent return flight deals

7/11Thu
directKLM
10h 25mLHR-SEA
17/11Sun
directKLM
9h 35mSEA-LHR
£509
25/10Fri
directKLM
10h 25mLHR-SEA
13/11Wed
directKLM
9h 35mSEA-LHR
£512
16/9Mon
directKLM
10h 30mLHR-SEA
2/10Wed
directKLM
9h 40mSEA-LHR
£515
16/9Mon
directKLM
10h 30mLHR-SEA
2/10Wed
1 stopKLM
12h 25mSEA-LHR
£518
25/10Fri
directKLM
10h 25mLHR-SEA
11/11Mon
1 stopKLM
12h 25mSEA-LHR
£519
23/10Wed
1 stopKLM
13h 05mLHR-SEA
12/11Tue
directKLM
9h 35mSEA-LHR
£554
16/9Mon
directKLM
10h 30mLHR-SEA
22/9Sun
directKLM
9h 35mSEA-LHR
£556
15/9Sun
1 stopKLM
15h 43mLHR-SEA
22/9Sun
directKLM
9h 35mSEA-LHR
£600
15/9Sun
directKLM
10h 30mLHR-SEA
22/9Sun
directKLM
9h 35mSEA-LHR
£603
22/10Tue
1 stopKLM
13h 05mLHR-SEA
2/11Sat
directKLM
9h 35mSEA-LHR
£604
22/10Tue
1 stopKLM
13h 05mLHR-SEA
2/11Sat
directKLM
9h 35mSEA-LHR
£605
19/11Tue
2 stopsKLM
29h 22mBHD-SEA
26/11Tue
2 stopsKLM
20h 10mSEA-BHD
£610
9/9Mon
1 stopKLM
22h 50mMAN-SEA
23/9Mon
1 stopKLM
14h 35mSEA-MAN
£615
2/9Mon
directKLM
10h 30mLHR-SEA
16/9Mon
1 stopKLM
12h 25mSEA-LHR
£629
17/10Thu
1 stopKLM
14h 55mLHR-SEA
2/11Sat
directKLM
9h 35mSEA-LHR
£634
13/6Thu
directKLM
10h 20mLHR-SEA
4/10Fri
1 stopKLM
12h 25mSEA-LHR
£636
26/6Wed
2 stopsKLM
17h 26mGLA-SEA
5/2Wed
2 stopsKLM
17h 05mSEA-GLA
£640
1/7Mon
directKLM
10h 25mLHR-SEA
11/7Thu
directKLM
9h 35mSEA-LHR
£640
13/6Thu
directKLM
10h 20mLHR-SEA
4/10Fri
directKLM
9h 40mSEA-LHR
£643
17/10Thu
directKLM
10h 25mLHR-SEA
2/11Sat
directKLM
9h 35mSEA-LHR
£645

Search by stops

Search by price

Recent one-way flight deals

2/10Wed
directKLM
10h 25mLHR-SEA
£589
2/10Wed
directKLM
9h 55mLHR-SEA
£591
25/6Tue
directKLM
9h 55mLHR-SEA
£634
3/7Wed
directKLM
10h 25mLHR-SEA
£691
8/8Thu
directKLM
10h 25mLHR-SEA
£865
8/6Sat
1 stopKLM
12h 25mLCY-SEA
£1,150
8/6Sat
1 stopKLM
12h 25mLCY-SEA
£1,179
16/9Mon
2 stopsKLM
16h 32mGLA-SEA
£1,247
31/8Sat
1 stopKLM
12h 25mLCY-SEA
£1,324
24/7Wed
1 stopKLM
14h 35mLCY-SEA
£1,578
27/7Sat
1 stopKLM
14h 35mLCY-SEA
£1,618
26/7Fri
1 stopKLM
14h 35mLCY-SEA
£1,620
1/7Mon
1 stopKLM
14h 35mLCY-SEA
£1,784
20/7Sat
1 stopKLM
14h 35mLCY-SEA
£1,787
5/7Fri
directKLM
10h 25mLHR-SEA
£1,789
19/7Fri
directKLM
10h 25mLHR-SEA
£1,791
6/7Sat
1 stopKLM
15h 15mLCY-SEA
£2,129
15/6Sat
1 stopKLM
12h 25mLCY-SEA
£2,132
10/9Tue
1 stopKLM
15h 30mLCY-SEA
£7,958
10/9Tue
directKLM
10h 30mLHR-SEA
£7,963

Search by stops

Search by price

Flights to Seattle - KLM

Destination:

Seattle/Tacoma Intl (SEA)United States

Return flight deals:

Seattle/Tacoma Intl - United Kingdom

Cabin classes:

£3,169
First Class flights to Seattle
£2,360
Business Class flights to Seattle
£859
£487

Browse origins:

Browse destinations: