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$536+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — SEA
Apr 30 — May 71
Wed 4/30
Wed 5/7
1 adult, Economy
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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 April 25, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$537
(British Airways)

One-way from

$537
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$601
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.
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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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Highest demand for flights based on searches. 15% potential increase in price ($118 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 25, 2025.

This British Airways deal was found by Cheapflights users on 4/24. 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 5/19:55 pmCGN - SEA
1 stop22h 40mBritish Airways
Wed 5/72:20 pmSEA - CGN
2 stops21h 40mBritish Airways
Deal found 4/24$536
This Flightnetwork deal was found by Cheapflights users on 4/24. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1112:55 pmCGN - SEA
1 stop13h 04mLufthansa
Sun 5/186:50 pmSEA - CGN
1 stop15h 30mLufthansa
Deal found 4/24$567
This Billigflug deal was found by Cheapflights users on 4/24. 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.
Sun 5/116:05 amCGN - SEA
2 stops24h 52mMultiple Airlines
Sun 5/187:20 amSEA - CGN
2 stops24h 45mMultiple Airlines
Deal found 4/24$603
This Air Canada deal was found by Cheapflights users on 4/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/301:35 pmCGN - SEA
2 stops30h 35mAir Canada
Tue 7/227:20 amSEA - CGN
2 stops24h 45mAir Canada
Deal found 4/25$604
This United Airlines deal was found by Cheapflights users on 4/24. 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 7/26:05 amCGN - SEA
2 stops24h 18mUnited Airlines
Wed 7/236:50 pmSEA - CGN
1 stop13h 20mUnited Airlines
Deal found 4/24$627
This American Airlines deal was found by Cheapflights users on 4/25. 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.
Mon 5/510:50 amCGN - SEA
1 stop16h 30mAmerican Airlines
Mon 5/121:30 pmSEA - CGN
1 stop15h 50mAmerican Airlines
Deal found 4/25$677
This Turkish Airlines deal was found by Cheapflights users on 4/24. 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.
Mon 6/3010:30 amCGN - SEA
1 stop33h 05mTurkish Airlines
Tue 7/2212:30 pmSEA - CGN
1 stop16h 20mTurkish Airlines
Deal found 4/24$988
This SWISS deal was found by Cheapflights users on 4/25. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/127:05 amCGN - SEA
2 stops24h 37mSWISS
Sat 8/24:20 pmSEA - CGN
1 stop31h 50mSWISS
Deal found 4/25$1,078
This Austrian Airlines deal was found by Cheapflights users on 4/24. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/186:30 amCGN - SEA
2 stops23h 18mAustrian Airlines
Thu 7/317:00 amSEA - CGN
2 stops30h 30mAustrian Airlines
Deal found 4/24$4,634

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 April 25, 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 5/5

9:15 pm-11:10 am

1 stop22h 55m

Seattle/Tacoma Intl

Sun 5/11

1:54 pm-8:25 pm

2 stops21h 31m

$537

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sun 5/11

12:55 pm-4:59 pm

1 stop13h 04m

Seattle/Tacoma Intl

Sun 5/18

6:50 pm-7:20 pm

1 stop15h 30m

$567

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sun 5/11

6:05 am-9:57 pm

2 stops24h 52m

Seattle/Tacoma Intl

Sun 5/18

7:20 am-5:05 pm

2 stops24h 45m

$603

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 6/30

1:35 pm-11:10 am

2 stops30h 35m

Seattle/Tacoma Intl

Tue 7/22

7:20 am-5:05 pm

2 stops24h 45m

$604

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Wed 7/2

6:05 am-9:23 pm

2 stops24h 18m

Seattle/Tacoma Intl

Wed 7/23

6:50 pm-5:10 pm

1 stop13h 20m

$627

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 5/5

10:50 am-6:20 pm

1 stop16h 30m

Seattle/Tacoma Intl

Mon 5/12

1:30 pm-2:20 pm

1 stop15h 50m

$677

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 6/30

10:30 am-10:35 am

1 stop33h 05m

Seattle/Tacoma Intl

Tue 7/22

12:30 pm-1:50 pm

1 stop16h 20m

$988

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sat 7/12

7:05 am-10:42 pm

2 stops24h 37m

Seattle/Tacoma Intl

Sat 8/2

4:20 pm-9:10 am

1 stop31h 50m

$1,078

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Fri 7/18

6:30 am-8:48 pm

2 stops23h 18m

Seattle/Tacoma Intl

Thu 7/31

7:00 am-10:30 pm

2 stops30h 30m

$4,634

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Thu 8/21

9:55 pm-9:41 pm

2 stops32h 46m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Cologne-Seattle flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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, January is the cheapest month in which you can book a flight from Cologne to Seattle (average of $238). Flying from Cologne to Seattle in July is currently the most expensive (average of $411). 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.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated April 25, 2025.
Read reviews from past customers who have flown Austrian Airlines, SWISS and United Airlines from Cologne to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
780 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.1

Food

6.7

Comfort

7.3

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Austrian Airlines
7.6
Good
780 reviews
Austrian Airlines
7.6
Good
780 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.1

Food

6.7

Comfort

7.3

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
SWISS
7.5
Good
1,582 reviews
Austrian Airlines
7.6
Good
780 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.1

Food

6.7

Comfort

7.3

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
United Airlines
7.4
Good
8,685 reviews
Austrian Airlines
7.6
Good
780 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.1

Food

6.7

Comfort

7.3

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Turkish Airlines
7.3
Good
3,776 reviews
Austrian Airlines
7.6
Good
780 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.1

Food

6.7

Comfort

7.3

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
American Airlines
7.2
Good
10,000 reviews
Austrian Airlines
7.6
Good
780 reviews

Entertainment

6.7

Boarding

7.6

Crew

8.1

Food

6.7

Comfort

7.3

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.

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.

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

    British Airways, at $537, was found to be the cheapest airline from Cologne to Seattle.Alternate airlines to your destination round-trip include Lufthansa and Air Canada. British Airways is 13% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, January is the cheapest month in which you can book a flight from Cologne to Seattle (average of $238). Flying from Cologne to Seattle in July is currently the most expensive (average of $411). 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 Cologne?

Book flights to Cologne if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Renton
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Aberdeen
Lynnwood
Shelton
Silverdale
Redmond
Issaquah

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