HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — SEA
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
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.

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 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$536
(British Airways)

Popular in

August

Cheapest in

June

Average price

$601
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
Highest demand for flights based on searches. 17% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 15, 2025.

This British Airways deal was found by Cheapflights users on 4/15. 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.
Fri 5/210:00 pmCGN - SEA
1 stop22h 35mBritish Airways
Wed 5/72:20 pmSEA - CGN
2 stops21h 40mBritish Airways
Deal found 4/15$536
This Billigflug deal was found by Cheapflights users on 4/15. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/22:20 pmCGN - SEA
1 stop30h 15mMultiple Airlines
Wed 5/78:20 pmSEA - CGN
1 stop15h 40mMultiple Airlines
Deal found 4/15$551
This Flysmarter deal was found by Cheapflights users on 4/15. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:05 amCGN - SEA
2 stops15h 20mLufthansa
Fri 6/62:15 pmSEA - CGN
2 stops16h 35mLufthansa
Deal found 4/15$573
This Air Canada deal was found by Cheapflights users on 4/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/27:40 amCGN - SEA
2 stops20h 57mAir Canada
Tue 6/177:20 amSEA - CGN
2 stops24h 45mAir Canada
Deal found 4/15$597
This American Airlines deal was found by Cheapflights users on 4/15. 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.
Tue 6/33:30 pmCGN - SEA
1 stop29h 05mAmerican Airlines
Sun 6/1512:05 amSEA - CGN
2 stops35h 25mAmerican Airlines
Deal found 4/15$682
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Wed 6/46:05 amCGN - SEA
1 stop19h 54mUnited Airlines
Sun 6/226:50 pmSEA - CGN
1 stop13h 20mUnited Airlines
Deal found 4/15$702
This Turkish Airlines deal was found by Cheapflights users on 4/15. 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 6/77:10 pmCGN - SEA
1 stop31h 05mTurkish Airlines
Thu 6/1912:30 pmSEA - CGN
1 stop16h 20mTurkish Airlines
Deal found 4/15$963
This SWISS deal was found by Cheapflights users on 4/15. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/86:40 pmCGN - SEA
1 stop29h 15mSWISS
Tue 6/171:45 pmSEA - CGN
2 stops34h 25mSWISS
Deal found 4/15$3,918
This Austrian Airlines deal was found by Cheapflights users on 4/15. 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 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
Fri 8/17:00 amSEA - CGN
2 stops18h 50mAustrian Airlines
Deal found 4/15$6,324

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 15, 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

Wed 5/28

6:05 am-12:25 pm

2 stops15h 20m

Seattle/Tacoma Intl

Fri 6/6

2:15 pm-3:50 pm

2 stops16h 35m

$573

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Thu 5/29

10:15 am-6:20 pm

1 stop17h 05m

Seattle/Tacoma Intl

Tue 6/3

1:30 pm-9:25 pm

1 stop22h 55m

$582

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Mon 6/2

7:40 am-7:37 pm

2 stops20h 57m

Seattle/Tacoma Intl

Tue 6/17

7:20 am-5:05 pm

2 stops24h 45m

$597

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Tue 6/3

3:30 pm-11:35 am

1 stop29h 05m

Seattle/Tacoma Intl

Sun 6/15

12:05 am-8:30 pm

2 stops35h 25m

$682

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Wed 6/4

6:05 am-4:59 pm

1 stop19h 54m

Seattle/Tacoma Intl

Sun 6/22

6:50 pm-5:10 pm

1 stop13h 20m

$702

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Fri 5/30

6:05 am-4:59 pm

1 stop19h 54m

Seattle/Tacoma Intl

Sun 6/8

6:50 pm-9:50 pm

1 stop18h 00m

$945

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sat 6/7

7:10 pm-5:15 pm

1 stop31h 05m

Seattle/Tacoma Intl

Thu 6/19

12:30 pm-1:50 pm

1 stop16h 20m

$963

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Sun 6/8

6:40 pm-2:55 pm

1 stop29h 15m

Seattle/Tacoma Intl

Mon 6/16

4:25 pm-9:35 pm

1 stop20h 10m

$3,918

CologneSeattle

CGN - SEA

CGNSEA

Cologne Köln/Bonn

Fri 7/18

6:30 am-8:48 pm

2 stops23h 18m

Seattle/Tacoma Intl

Fri 8/1

7:00 am-10:50 am

2 stops18h 50m

$6,324

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

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 15, 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
775 reviews

Overall

7.6

Crew

8.1

Boarding

7.6

Entertainment

6.8

Comfort

7.3

Food

6.7

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
775 reviews
Austrian Airlines
7.6
Good
775 reviews

Overall

7.6

Crew

8.1

Boarding

7.6

Entertainment

6.8

Comfort

7.3

Food

6.7

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
1,578 reviews
Austrian Airlines
7.6
Good
775 reviews

Overall

7.6

Crew

8.1

Boarding

7.6

Entertainment

6.8

Comfort

7.3

Food

6.7

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
8,658 reviews
Austrian Airlines
7.6
Good
775 reviews

Overall

7.6

Crew

8.1

Boarding

7.6

Entertainment

6.8

Comfort

7.3

Food

6.7

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
3,760 reviews
Austrian Airlines
7.6
Good
775 reviews

Overall

7.6

Crew

8.1

Boarding

7.6

Entertainment

6.8

Comfort

7.3

Food

6.7

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
775 reviews

Overall

7.6

Crew

8.1

Boarding

7.6

Entertainment

6.8

Comfort

7.3

Food

6.7

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 $536, 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 12% 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
Aberdeen
Kent
Lynnwood
Shelton
Silverdale
Redmond
Issaquah

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
Munich to Seattle flights
Duesseldorf Intl to Seattle flights
Hamburg to Seattle flights
Frankfurt to Portland flights
Berlin to Seattle flights
Bremen to Seattle flights
Frankfurt-Hahn to Seattle flights
Berlin to Portland flights
Frankfurt to Spokane flights
Hannover to Seattle flights
Stuttgart to Seattle flights
Munich to Portland flights
Duesseldorf Intl to Portland flights
Stuttgart to Portland flights
Hamburg to Portland flights
Cologne to Portland flights
Bremen to Portland flights
Nuremberg to Seattle flights
Hamburg to Spokane flights
Nuremberg to Portland flights
Munich to Spokane flights
Dresden to Portland flights
Munich to Bellingham flights
Frankfurt to Pullman flights
Leipzig to Seattle flights
Duesseldorf Intl to Spokane flights
Dresden to Seattle flights
Dortmund to Seattle flights
Leipzig to Portland flights
Hannover to Portland flights
Münster to Portland flights
Paderborn to Seattle 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.