HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$595+ Cheap flights from Cologne (CGN) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — SEA
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Cologne to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find 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 November 17, 2025.

This United Airlines deal was found by Cheapflights users on 11/15. 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.
Tue 12/161:35 pmCGN - SEA
2 stops17h 53mUnited Airlines
Thu 2/52:10 pmSEA - CGN
2 stops18h 05mUnited Airlines
Deal found 11/15$616
This United Airlines deal was found by Cheapflights users on 11/15. 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.
Thu 12/188:40 amCGN - SEA
2 stops17h 12mUnited Airlines
Fri 2/69:25 amSEA - CGN
2 stops17h 45mUnited Airlines
Deal found 11/15$789
This Turkish Airlines deal was found by Cheapflights users on 11/15. 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.
Sat 12/136:15 pmCGN - SEA
1 stop31h 50mTurkish Airlines
Wed 2/47:00 pmSEA - CGN
1 stop30h 35mTurkish Airlines
Deal found 11/15$833
This British Airways deal was found by Cheapflights users on 11/15. 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.
Sat 12/1312:40 pmCGN - SEA
1 stop13h 15mBritish Airways
Tue 2/36:50 pmSEA - CGN
1 stop12h 40mBritish Airways
Deal found 11/15$866
This Turkish Airlines deal was found by Cheapflights users on 11/15. 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.
Tue 12/166:15 pmCGN - SEA
1 stop31h 50mTurkish Airlines
Thu 2/57:00 pmSEA - CGN
1 stop30h 35mTurkish Airlines
Deal found 11/15$880
This British Airways deal was found by Cheapflights users on 11/15. 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.
Thu 12/185:05 pmCGN - SEA
1 stop27h 25mBritish Airways
Tue 2/36:50 pmSEA - CGN
1 stop12h 40mBritish Airways
Deal found 11/15$949
This United Airlines deal was found by Cheapflights users on 11/15. 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.
Thu 12/181:35 pmCGN - SEA
1 stop32h 45mUnited Airlines
Wed 2/43:10 pmSEA - CGN
1 stop12h 40mUnited Airlines
Deal found 11/15$953
This United Airlines deal was found by Cheapflights users on 11/15. 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.
Fri 12/199:10 amCGN - SEA
1 stop13h 10mUnited Airlines
Wed 2/43:10 pmSEA - CGN
1 stop12h 40mUnited Airlines
Deal found 11/15$1,064
This Turkish Airlines deal was found by Cheapflights users on 11/15. 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.
Fri 12/1911:35 amCGN - SEA
1 stop38h 30mTurkish Airlines
Sun 2/87:00 pmSEA - CGN
1 stop30h 35mTurkish Airlines
Deal found 11/15$1,191
This American Airlines deal was found by Cheapflights users on 11/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1712:00 pmCGN - SEA
1 stop13h 55mAmerican Airlines
Fri 2/66:50 pmSEA - CGN
1 stop12h 30mAmerican Airlines
Deal found 11/15$1,382
This United Airlines deal was found by Cheapflights users on 11/15. 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.
Fri 12/199:10 amCGN - SEA
2 stops18h 35mUnited Airlines
Sun 2/89:25 amSEA - CGN
2 stops22h 45mUnited Airlines
Deal found 11/15$1,384

Cheap 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 November 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$595
(British Airways)
Provider with most accurate pricing for Cologne Köln/Bonn-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cologne Köln/Bonn-Seattle/Tacoma Intl flights.
Search Deals
From Cologne Köln/Bonn to Seattle/Tacoma Intl
Search Deals

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 November 17, 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 1/12

5:15 pm-4:55 pm

1 stop32h 40m

Seattle/Tacoma Intl

Sun 1/18

6:50 pm-4:30 pm

1 stop12h 40m

$595

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sun 1/11

4:35 pm-5:45 pm

2 stops34h 10m

Seattle/Tacoma Intl

Sun 1/18

10:45 am-4:30 pm

2 stops20h 45m

$600

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Tue 12/16

1:35 pm-10:28 pm

2 stops17h 53m

Seattle/Tacoma Intl

Thu 2/5

2:10 pm-5:15 pm

2 stops18h 05m

$616

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 1/12

8:40 am-10:16 pm

2 stops22h 36m

Seattle/Tacoma Intl

Sun 1/18

10:05 am-10:25 pm

2 stops27h 20m

$617

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 1/12

8:40 am-10:16 pm

2 stops22h 36m

Seattle/Tacoma Intl

Sun 1/18

3:10 pm-12:35 pm

1 stop12h 25m

$626

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 1/12

8:40 am-10:43 pm

3 stops23h 03m

Seattle/Tacoma Intl

Sun 1/18

10:58 am-12:10 pm

2 stops16h 12m

$783

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Thu 12/18

8:40 am-6:46 pm

2 stops19h 06m

Seattle/Tacoma Intl

Sun 2/8

10:58 am-12:10 pm

2 stops16h 12m

$789

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Thu 12/18

8:40 am-4:52 pm

2 stops17h 12m

Seattle/Tacoma Intl

Fri 2/6

9:25 am-12:10 pm

2 stops17h 45m

$789

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sat 12/13

6:15 pm-5:05 pm

1 stop31h 50m

Seattle/Tacoma Intl

Wed 2/4

7:00 pm-10:35 am

1 stop30h 35m

$833

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Thu 3/26

6:45 am-10:16 pm

2 stops23h 31m

Seattle/Tacoma Intl

Mon 3/30

3:40 pm-5:20 pm

2 stops16h 40m

$865

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 $591). 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 17h 53m. The distance between Cologne and Seattle is about 5007 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $591). 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
SeaTac
Tacoma
Tukwila
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Cle Elum
Marysville
Puyallup
Federal Way
Fife
Issaquah
Aberdeen

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Cologne to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Frankfurt to Seattle flights
Frankfurt-Hahn to Seattle flights
Munich to Seattle flights
Frankfurt to Portland flights
Duesseldorf Intl to Seattle flights
Munich to Portland flights
Duesseldorf Intl to Portland flights
Berlin to Seattle flights
Berlin to Portland flights
Stuttgart to Seattle flights
Hamburg to Seattle flights
Hannover to Seattle flights
Bremen to Seattle flights
Hannover to Portland flights
Stuttgart to Portland flights
Frankfurt to Spokane flights
Dresden to Seattle flights
Nuremberg to Seattle flights
Hamburg to Portland flights
Leipzig to Portland flights
Dresden to Portland flights
Leipzig to Seattle flights
Bremen to Portland flights
Nuremberg to Portland flights
Munich to Spokane flights
Cologne to Portland flights
Duesseldorf Intl to Spokane flights
Paderborn to Seattle flights
Dortmund to Seattle flights
Frankfurt to Pullman flights
Munich to Bellingham flights
Münster to Portland flights
Hamburg to Spokane flights

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.