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SEA

Find cheap KLM flights to Seattle from £505

1 adult
0 bags
Wed 5/6
Wed 12/6

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Good to know

Low season

January

High season

July

Cheapest flight

£505

Average price round-trip

£662
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 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 1,602 verified guest reviews
7.2Entertainment
8.4Crew
7.6Comfort
7.8Boarding
7.3Food
Traveller rating:
Sort by:
A
4.0 Mediocre
Cons:Crew members in Amsterdam were very rude and disrespectful
A
4.3 Mediocre
Pros:Friendly crew
Cons:KLM lost one piece of my luggage
A
2.0 Poor
Cons:My girlfriend were scheduled to come back from Marrakech together (albeit on separate reservations), however KLM could not find her reservation in their system and would not let her on the plane. I had to leave her behind in Marrakech. KLM had the audacity to ask her to purchase another ticket, even though she clearly had a valid reservation (how else would she had gotten to Marrakech in the first place?). After arguing with KLM for many hours, they finally booked her on a flight the following day, but refused to put her up in a hotel for the night, or compensate her for the trouble. Completely irresponsible behaviour from KLM. Will never fly with them again.
R
7.0 Good
Pros:newer plane, good staff
Cons:need better and more food options, more often
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.
C
10.0 Wonderful
Is nice to travel with this airline
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
3.0 Poor
Cons:The plane was very hot
Read more about KLM

Book Cheap flights with KLM to Seattle

Recent return flight deals

16/9Mon
directKLM
10h 30mLHR-SEA
26/9Thu
directKLM
9h 35mSEA-LHR
£505
9/9Mon
directKLM
10h 30mLHR-SEA
18/9Wed
1 stopKLM
12h 25mSEA-LHR
£544
15/9Sun
directKLM
10h 30mLHR-SEA
26/9Thu
directKLM
9h 35mSEA-LHR
£548
9/9Mon
directKLM
10h 30mLHR-SEA
18/9Wed
directKLM
9h 35mSEA-LHR
£552
15/9Sun
1 stopKLM
15h 40mLHR-SEA
26/9Thu
directKLM
9h 35mSEA-LHR
£559
19/9Thu
1 stopKLM
15h 30mLCY-SEA
8/10Tue
1 stopKLM
12h 00mSEA-LCY
£567
16/9Mon
1 stopKLM
15h 30mLCY-SEA
23/9Mon
1 stopKLM
12h 00mSEA-LCY
£567
16/5Thu
directKLM
10h 30mLHR-SEA
29/5Wed
directKLM
9h 40mSEA-LHR
£572
14/9Sat
directKLM
10h 30mLHR-SEA
28/9Sat
1 stopKLM
12h 52mSEA-LHR
£576
2/9Mon
directKLM
10h 30mLHR-SEA
16/9Mon
1 stopKLM
12h 25mSEA-LHR
£581
14/9Sat
directKLM
10h 30mLHR-SEA
21/9Sat
directKLM
9h 35mSEA-LHR
£582
16/9Mon
1 stopKLM
14h 50mLCY-SEA
7/10Mon
1 stopKLM
12h 00mSEA-LCY
£583
14/9Sat
directKLM
10h 30mLHR-SEA
27/9Fri
directKLM
9h 35mSEA-LHR
£583
17/5Fri
directKLM
10h 30mLHR-SEA
29/5Wed
directKLM
9h 40mSEA-LHR
£586
2/9Mon
directKLM
10h 30mLHR-SEA
16/9Mon
directKLM
9h 35mSEA-LHR
£589
18/6Tue
directKLM
10h 20mLHR-SEA
10/9Tue
directKLM
9h 35mSEA-LHR
£590
9/9Mon
1 stopKLM
22h 50mMAN-SEA
23/9Mon
1 stopKLM
12h 55mSEA-MAN
£597
20/9Fri
1 stopKLM
15h 30mLCY-SEA
8/10Tue
1 stopKLM
12h 00mSEA-LCY
£598
23/5Thu
1 stopKLM
12h 55mLHR-SEA
3/6Mon
directKLM
9h 40mSEA-LHR
£598
22/5Wed
1 stopKLM
16h 00mLCY-SEA
28/5Tue
1 stopKLM
19h 10mSEA-LCY
£602

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Recent one-way flight deals

1/7Mon
1 stopKLM
14h 35mLCY-SEA
£1,281
2/7Tue
1 stopKLM
14h 35mLCY-SEA
£1,282
4/7Thu
1 stopKLM
14h 35mLCY-SEA
£1,323
15/7Mon
1 stopKLM
14h 35mLCY-SEA
£1,577
27/7Sat
1 stopKLM
14h 35mLCY-SEA
£1,619
22/5Wed
1 stopKLM
14h 45mLHR-SEA
£1,779
15/6Sat
1 stopKLM
12h 25mLCY-SEA
£1,786
20/5Mon
1 stopKLM
15h 20mLCY-SEA
£1,789
7/7Sun
directKLM
10h 25mLHR-SEA
£1,790
20/5Mon
directKLM
10h 30mLHR-SEA
£1,793
11/5Sat
1 stopKLM
12h 30mLCY-SEA
£2,130
11/5Sat
1 stopKLM
14h 40mLCY-SEA
£2,134
19/5Sun
directKLM
10h 30mLHR-SEA
£2,138
2/10Wed
1 stopKLM
15h 30mLCY-SEA
£2,777
23/5Thu
directKLM
10h 30mLHR-SEA
£2,781

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Flights to Seattle - KLM

Destination:

Seattle/Tacoma Intl (SEA)United States

Return flight deals:

Seattle/Tacoma Intl - United Kingdom

Cabin classes:

£4,176
First Class flights to Seattle
£2,081
Business Class flights to Seattle
£1,022
£522

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