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$490+ Cheap flights from Cologne (CGN) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — SEA
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
1 adult, Economy
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Cheap flight deals from Cologne to Seattle

Cheapest flights from Cologne to Seattle
Explore the most affordable flight options available from Cologne to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 30, 2025.

This United Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:45 amCGN - SEA
2 stops38h 18mUnited Airlines
Sat 1/173:40 pmSEA - CGN
2 stops16h 30mUnited Airlines
Deal found 12/29$1,074
This United Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:45 amCGN - SEA
2 stops38h 18mUnited Airlines
Wed 1/143:10 pmSEA - CGN
1 stop12h 40mUnited Airlines
Deal found 12/29$1,077
This British Airways deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:00 pmCGN - SEA
2 stops38h 09mBritish Airways
Sun 1/188:35 amSEA - CGN
2 stops22h 55mBritish Airways
Deal found 12/29$1,397
This Turkish Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 pmCGN - SEA
1 stop31h 50mTurkish Airlines
Thu 1/157:00 pmSEA - CGN
1 stop37h 15mTurkish Airlines
Deal found 12/29$2,098
This Turkish Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:35 amCGN - SEA
1 stop38h 30mTurkish Airlines
Sun 1/187:00 pmSEA - CGN
1 stop30h 35mTurkish Airlines
Deal found 12/29$2,107
This Turkish Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 pmCGN - SEA
1 stop31h 50mTurkish Airlines
Sat 1/177:00 pmSEA - CGN
1 stop37h 15mTurkish Airlines
Deal found 12/29$2,142
This Turkish Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:35 amCGN - SEA
1 stop38h 30mTurkish Airlines
Fri 1/167:00 pmSEA - CGN
1 stop37h 15mTurkish Airlines
Deal found 12/29$2,180
This Turkish Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:35 amCGN - SEA
1 stop38h 30mTurkish Airlines
Tue 1/137:00 pmSEA - CGN
1 stop37h 15mTurkish Airlines
Deal found 12/29$2,404

Find flight deals from Cologne to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Cologne (CGN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$572
(British Airways)

One-way from

$490
(Kiwi.com)
Provider with most accurate pricing for Cologne Köln/Bonn-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Cologne Köln/Bonn-Seattle/Tacoma Intl flights.
Search Deals
From Cologne Köln/Bonn to Seattle/Tacoma Intl
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One-way flight from Cologne Köln/Bonn to Seattle/Tacoma Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Cologne to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 30, 2025.
Use the filters below to find and compare flights from Cologne to Seattle that are best for you.

Fly from

Cologne

Fly to

Seattle

Route

Depart

Return

Price

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 1/26

5:15 pm-4:55 pm

1 stop32h 40m

Seattle/Tacoma Intl

Sun 2/1

6:50 pm-4:30 pm

1 stop12h 40m

$572

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Wed 2/25

5:15 pm-4:55 pm

1 stop32h 40m

Seattle/Tacoma Intl

Sun 3/1

1:57 pm-4:10 pm

2 stops41h 13m

$577

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Thu 1/22

5:05 pm-11:51 pm

2 stops39h 46m

Seattle/Tacoma Intl

Mon 1/26

2:04 pm-4:30 pm

2 stops41h 26m

$601

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Fri 2/13

9:10 am-7:16 pm

2 stops19h 06m

Seattle/Tacoma Intl

Fri 2/20

9:55 am-12:30 pm

2 stops17h 35m

$626

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 4/27

1:00 pm-7:18 pm

2 stops15h 18m

Seattle/Tacoma Intl

Mon 5/18

9:55 am-5:05 pm

2 stops22h 10m

$635

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Wed 4/29

1:00 pm-4:59 pm

1 stop12h 59m

Seattle/Tacoma Intl

Fri 5/15

6:50 pm-5:40 pm

1 stop13h 50m

$638

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Fri 6/19

1:00 pm-4:59 pm

1 stop12h 59m

Seattle/Tacoma Intl

Sat 7/4

6:50 pm-5:20 pm

1 stop13h 30m

$638

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Fri 6/19

1:00 pm-4:59 pm

1 stop12h 59m

Seattle/Tacoma Intl

Thu 7/2

6:50 pm-5:40 pm

1 stop13h 50m

$638

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Fri 6/19

1:00 pm-4:59 pm

1 stop12h 59m

Seattle/Tacoma Intl

Sun 7/5

6:50 pm-5:20 pm

1 stop13h 30m

$638

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Wed 5/20

1:00 pm-4:59 pm

1 stop12h 59m

Seattle/Tacoma Intl

Sun 5/31

6:50 pm-5:20 pm

1 stop13h 30m

$638

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Showing 1-10 of 12 results
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Compare providers for flights from Cologne to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cologne to Seattle in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Cologne-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Cologne-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Cologne-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cologne-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cologne-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Cologne to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Cologne with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from Cologne to Seattle

What is the cheapest month to book a flight from Cologne to Seattle?

Currently, March is the cheapest month in which you can book a flight from Cologne to Seattle (average of $413). Flying from Cologne to Seattle in July is currently the most expensive (average of $608). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Cologne to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Cologne to Seattle?

    Departing from Cologne to Seattle will take you 32h 40m. The distance between Cologne and Seattle is about 5007 mi.

  • Can I find deals for flights from Cologne to Seattle that include hotel bookings?

    Yes. In addition to deals on Cologne to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cologne to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cologne to Seattle.

  • Can I find deals for business class flights from Cologne to Seattle?

    Yes. Cheapflights offers flight deals from Cologne to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cologne to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Cologne to Seattle (average of $413). Flying from Cologne to Seattle in July is currently the most expensive (average of $608). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Marysville
Fife
Aberdeen
Shoreline
Centralia
Federal Way
Chehalis
Tumwater

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