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Find cheap KLM flights to Seattle from £497

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Flights Deals

Cheap KLM Flight Deals to Seattle

 
Here are some of the best deals found on KAYAK recently from KLM to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return KLM flight deals to Seattle

KAYAK's recommended return flight KLM deals departing in the coming months to Seattle.
Discover the best prices for you by selecting your travel dates on KAYAK.
KLM Logo
09:55 - 15:57LHR-SEA
14h 02m1 stop
KLM Logo
17:35 - 11:20SEA-LHR
9h 45mdirect
£497KLM
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Mon, 12 May - Fri, 23 May
KLM Logo
18:30 - 20:55LHR-SEA
10h 25mdirect
KLM Logo
20:25 - 14:15SEA-LHR
9h 50mdirect
£538KLM
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Sun, 7 Sep - Fri, 19 Sep
KLM Logo
17:15 - 11:40EDI-SEA
26h 25m1 stop
KLM Logo
18:07 - 21:45SEA-EDI
19h 38m1 stop
£550KLM
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Tue, 13 May - Tue, 20 May
KLM Logo
09:20 - 16:05LCY-SEA
14h 45m1 stop
KLM Logo
13:55 - 11:40SEA-LCY
13h 45m1 stop
£553KLM
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Mon, 8 Sep - Fri, 26 Sep
KLM Logo
17:25 - 19:50LHR-SEA
10h 25mdirect
KLM Logo
20:25 - 14:15SEA-LHR
9h 50mdirect
£561KLM
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Sat, 6 Sep - Sat, 4 Oct
KLM Logo
06:00 - 16:00GLA-SEA
18h 00m2 stops
KLM Logo
15:30 - 16:10SEA-GLA
16h 40m2 stops
£565KLM
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Mon, 1 Sep - Mon, 15 Sep
KLM Logo
20:55 - 11:40LHR-SEA
22h 45m1 stop
KLM Logo
20:25 - 14:15SEA-LHR
9h 50mdirect
£569KLM
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Sun, 25 May - Sun, 1 Jun
KLM Logo
10:00 - 15:57LCY-SEA
13h 57m1 stop
KLM Logo
13:55 - 11:40SEA-LCY
13h 45m1 stop
£570KLM
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Tue, 13 May - Fri, 23 May
KLM Logo
06:30 - 11:40LHR-SEA
13h 10m1 stop
KLM Logo
17:35 - 11:20SEA-LHR
9h 45mdirect
£571KLM
Find Deal
Mon, 2 Jun - Fri, 13 Jun
KLM Logo
17:35 - 11:45BHX-SEA
26h 10m1 stop
KLM Logo
13:55 - 21:25SEA-BHX
23h 30m1 stop
£574KLM
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Tue, 2 Sep - Tue, 16 Sep
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Good to know

Low season

January

High season

August

Cheapest flight

£497

Average price round-trip

£638
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (33% 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 1,334 verified guest reviews
7.7Comfort
7.2Food
8.4Crew
7.1Entertainment
7.8Boarding

Pros +
  • Seats were very comfortable. (in 6 reviews)
Cons -
  • This is by far the best airlines I have used. (in 1 review)
  • When I boarded a man sat it my seat. (in 47 reviews)

Show reviews that mention
Traveller rating:
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S
8.0 Very Good
I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.
A
8.0 Very Good
Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack
A
10.0 Wonderful
Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!
A
8.0 Very Good
Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.
P
6.0 Okay
This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.
J
8.0 Very Good
You should not have to pay for WiFi in business class
A
10.0 Wonderful
Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.
A
10.0 Wonderful
Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality
A
8.0 Very Good
This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any
A
8.0 Very Good
I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

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