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$347+ Cheap flights from Seattle (SEA) to Cologne (CGN)

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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CGN
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Seattle to Cologne

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Cologne (CGN). 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 July 30, 2025.

Round-trip from

$587
(Expedia)

One-way from

$347
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,303
From Seattle/Tacoma Intl to Cologne Köln/Bonn
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One-way flight from Seattle/Tacoma Intl to Cologne Köln/Bonn
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Highest demand for flights based on searches. 28% potential increase in price ($441 potential increase over avg. RT price).
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Cheapest flight prices on average. 13% potential price decrease ($126 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Seattle to Cologne

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

This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/103:40 pmSEA - CGN
2 stops20h 20mBritish Airways
Wed 9/1710:15 pmCGN - SEA
2 stops29h 54mBritish Airways
Deal found 7/29$587
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:15 amSEA - CGN
2 stops18h 55mMultiple Airlines
Wed 9/178:35 amCGN - SEA
1 stop17h 24mMultiple Airlines
Deal found 7/29$599
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:50 pmSEA - CGN
1 stop12h 00mLufthansa
Fri 10/106:05 amCGN - SEA
2 stops14h 50mLufthansa
Deal found 7/29$611
This Expedia deal was found by Cheapflights users on 7/28. 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.
Sat 12/278:00 pmSEA - CGN
2 stops41h 20mAir Canada
Wed 1/76:55 pmCGN - SEA
2 stops36h 01mAir Canada
Deal found 7/28$628
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 10/31:12 pmSEA - CGN
2 stops17h 38mUnited Airlines
Fri 10/1712:55 pmCGN - SEA
2 stops18h 35mUnited Airlines
Deal found 7/29$739

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Cologne 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 July 30, 2025.
Use the filters below to find and compare flights from Seattle to Cologne that are best for you.

Fly from

Seattle

Fly to

Cologne

Route

Depart

Return

Price

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Wed 9/10

3:40 pm-9:00 pm

2 stops20h 20m

Cologne Köln/Bonn

Wed 9/17

10:15 pm-7:09 pm

2 stops29h 54m

$587

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Wed 9/10

7:15 am-11:10 am

2 stops18h 55m

Cologne Köln/Bonn

Wed 9/17

8:35 am-4:59 pm

1 stop17h 24m

$599

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Wed 10/1

6:50 pm-3:50 pm

1 stop12h 00m

Cologne Köln/Bonn

Fri 10/10

6:05 am-11:55 am

2 stops14h 50m

$611

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Mon 9/15

7:15 am-5:05 pm

2 stops24h 50m

Cologne Köln/Bonn

Fri 9/26

6:20 am-10:16 pm

2 stops24h 56m

$644

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Fri 10/3

1:12 pm-3:50 pm

2 stops17h 38m

Cologne Köln/Bonn

Fri 10/17

12:55 pm-10:30 pm

2 stops18h 35m

$739

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Thu 10/16

1:50 pm-12:45 am

3 stops25h 55m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Seattle to Cologne

Have a flexible travel schedule? Discover the best time to fly to Cologne from Seattle 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 Seattle to Cologne

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Cologne (average of $649). Flying from Seattle to Cologne in June is currently the most expensive (average of $1,252). 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.

What is the cheapest time of day to fly from SEA to CGN?

Find hourly flight availability from Seattle to Cologne. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

One of the essential ways to save on airfare from Seattle to Cologne is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 31% on airfare.

Reviews of airlines servicing Cologne

Get insights into the airlines that provide service to Cologne. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cologne. Reviews last updated July 30, 2025.
See what other customers who have flown with SWISS, United Airlines, and Turkish Airlines from Seattle to Cologne have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,686 reviews

Crew

8.2

Entertainment

6.8

Boarding

7.7

Food

7.1

Comfort

7.4

Overall

7.5

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
SWISS
7.5
Good
1,686 reviews
SWISS
7.5
Good
1,686 reviews

Crew

8.2

Entertainment

6.8

Boarding

7.7

Food

7.1

Comfort

7.4

Overall

7.5

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
United Airlines
7.4
Good
8,896 reviews
SWISS
7.5
Good
1,686 reviews

Crew

8.2

Entertainment

6.8

Boarding

7.7

Food

7.1

Comfort

7.4

Overall

7.5

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
Turkish Airlines
7.3
Good
3,928 reviews
SWISS
7.5
Good
1,686 reviews

Crew

8.2

Entertainment

6.8

Boarding

7.7

Food

7.1

Comfort

7.4

Overall

7.5

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
Lufthansa
6.8
Okay
7,269 reviews
SWISS
7.5
Good
1,686 reviews

Crew

8.2

Entertainment

6.8

Boarding

7.7

Food

7.1

Comfort

7.4

Overall

7.5

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.
British Airways
6.6
Okay
7,217 reviews
SWISS
7.5
Good
1,686 reviews

Crew

8.2

Entertainment

6.8

Boarding

7.7

Food

7.1

Comfort

7.4

Overall

7.5

Reviews

1 / 20
6.0
Good

Madhukar,Nov 2024

ZRH - BOM

Indian Veg food selection and quality definitely needs a better chef.

Related info for your journey

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

  • What are the cheapest airlines flying from Seattle to Cologne round-trip?

    Our cheapest airline available from Seattle to Cologne is British Airways. Our recent data shows that you can find tickets from as low as $587 on this airline. Additional options worth looking into are Lufthansa and United Airlines, starting at $611 and $739 round-trip. British Airways is 45% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Cologne 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 Seattle to Cologne?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Cologne (average of $649). Flying from Seattle to Cologne in June is currently the most expensive (average of $1,252). 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

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Top airline flying from Seattle to Cologne

Discover the top airline that operate flights from Seattle to Cologne. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$578Average$841FlexibilityNo cancel feeOn-time76%

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