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$422+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — SEA
Apr 6 — Apr 131
Mon 4/6
Mon 4/13
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 March 7, 2026.

This Expedia deal was found by Cheapflights users on 3/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:05 pm
CGN
-
SEA
1 stop12h 54m
Lufthansa
Thu 6/46:50 pm
SEA
-
CGN
1 stop15h 40m
Lufthansa
Deal found 3/3$628
This United Airlines deal was found by Cheapflights users on 3/4. 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 4/101:05 pm
CGN
-
SEA
1 stop12h 54m
United Airlines
Fri 4/176:50 pm
SEA
-
CGN
1 stop13h 50m
United Airlines
Deal found 3/4$631
This Booking.com deal was found by Cheapflights users on 3/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/209:10 am
CGN
-
SEA
1 stop13h 10m
Lufthansa
Fri 3/274:10 pm
SEA
-
CGN
1 stop12h 20m
Lufthansa
Deal found 3/3$635
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Sat 9/128:30 am
CGN
-
SEA
1 stop17h 29m
United Airlines
Fri 9/256:50 pm
SEA
-
CGN
1 stop13h 50m
United Airlines
Deal found 3/3$636
This United Airlines deal was found by Cheapflights users on 3/3. 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 9/151:05 pm
CGN
-
SEA
2 stops19h 06m
United Airlines
Mon 9/285:15 am
SEA
-
CGN
2 stops22h 10m
United Airlines
Deal found 3/3$642
This Billigflug deal was found by Cheapflights users on 3/3. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/209:10 am
CGN
-
SEA
2 stops23h 49m
Multiple Airlines
Fri 3/274:10 pm
SEA
-
CGN
1 stop12h 20m
Multiple Airlines
Deal found 3/3$664
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/241:05 pm
CGN
-
SEA
1 stop12h 54m
United Airlines
Fri 5/16:50 pm
SEA
-
CGN
1 stop13h 50m
United Airlines
Deal found 3/5$666
This Billigflug deal was found by Cheapflights users on 3/3. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:30 am
CGN
-
SEA
2 stops23h 16m
Multiple Airlines
Thu 6/46:50 pm
SEA
-
CGN
1 stop15h 40m
Multiple Airlines
Deal found 3/3$668
This Expedia deal was found by Cheapflights users on 3/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:40 pm
CGN
-
SEA
2 stops31h 06m
Multiple Airlines
Fri 5/16:50 pm
SEA
-
CGN
1 stop15h 05m
Multiple Airlines
Deal found 3/5$670
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Mon 9/141:05 pm
CGN
-
SEA
2 stops18h 37m
United Airlines
Fri 9/256:50 pm
SEA
-
CGN
1 stop13h 50m
United Airlines
Deal found 3/3$689

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 March 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$628
(Expedia)

One-way from

$422
(Kiwi.com)
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
One-way flight 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 March 7, 2026.
Use the filters below to find and compare flights from Cologne to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Fri 4/24

1:05 pm-4:59 pm

1 stop12h 54m

Seattle/Tacoma Intl

Fri 5/1

6:50 pm-5:40 pm

1 stop13h 50m

$666

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Tue 8/18

1:05 pm-10:42 pm

2 stops42h 37m

Seattle/Tacoma Intl

Wed 9/2

8:10 am-5:20 pm

2 stops24h 10m

$752

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Tue 3/24

8:40 am-6:50 pm

2 stops18h 10m

Seattle/Tacoma Intl

Mon 3/30

10:48 am-12:25 pm

2 stops16h 37m

$873
Quickest round-trip

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Wed 4/22

1:05 pm-4:59 pm

1 stop12h 54m

Seattle/Tacoma Intl

Sun 4/26

6:50 pm-5:20 pm

1 stop13h 30m

$887

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sun 4/19

3:10 pm-5:10 pm

2 stops35h 00m

Seattle/Tacoma Intl

Sun 4/26

3:40 pm-7:30 pm

2 stops18h 50m

$897

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Wed 4/22

8:30 am-3:08 pm

2 stops39h 38m

Seattle/Tacoma Intl

Sun 4/26

8:00 am-12:25 pm

2 stops19h 25m

$902

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 3/30

1:05 pm-7:00 pm

2 stops38h 55m

Seattle/Tacoma Intl

Wed 4/8

8:42 am-5:20 pm

3 stops23h 38m

$910
Cheapest one-way

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sun 5/31

9:40 pm-1:01 pm

3 stops48h 21m

$422
Quickest one-way

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sat 6/20

6:25 pm-12:20 pm

2 stops26h 55m

$670

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Fri 8/7

10:55 pm-9:07 pm

3 stops31h 12m

$738

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cologne-Seattle flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $436). Flying from Cologne to Seattle in July is currently the most expensive (average of $607). 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 12h 54m. 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 $436). Flying from Cologne to Seattle in July is currently the most expensive (average of $607). 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
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

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