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Cheap flights from Seattle to Cologne from $422

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Cologne departing on 12/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Cologne

Cheap round-trip flights

British Airways Logo
2:35 pm - 4:20 pmSEA-CGN
17h 45m1 stop
British Airways Logo
5:05 pm - 5:55 pmCGN-SEA
32h 50m1 stop
$593British Airways
Find Deal
Fri, Mar 13 - Tue, Mar 17
United Airlines Logo
4:10 pm - 5:10 pmSEA-CGN
17h 00m1 stop
United Airlines Logo
1:35 pm - 9:59 amCGN-SEA
28h 24m2 stops
$711United Airlines
Find Deal
Fri, Mar 13 - Tue, Mar 17
United Airlines Logo
4:10 pm - 5:10 pmSEA-CGN
17h 00m1 stop
United Airlines Logo
1:35 pm - 12:51 amCGN-SEA
43h 16m3 stops
$712United Airlines
Find Deal
Fri, Mar 13 - Tue, Mar 17
United Airlines Logo
3:00 pm - 5:10 pmSEA-CGN
18h 10m2 stops
United Airlines Logo
1:35 pm - 9:59 amCGN-SEA
28h 24m2 stops
$739United Airlines
Find Deal
Fri, Mar 13 - Tue, Mar 17
United Airlines Logo
3:00 pm - 5:10 pmSEA-CGN
18h 10m2 stops
United Airlines Logo
1:35 pm - 12:51 amCGN-SEA
43h 16m3 stops
$740United Airlines
Find Deal
Fri, Mar 13 - Tue, Mar 17
Multiple Airlines Logo
3:50 pm - 11:20 pmSEA-CGN
22h 30m2 stops
Multiple Airlines Logo
7:40 pm - 6:00 pmCGN-SEA
30h 20m3 stops
$837Multiple Airlines
Find Deal
Sat, Oct 25 - Wed, Oct 29
Multiple Airlines Logo
7:15 pm - 12:10 pmSEA-CGN
56h 55m2 stops
Multiple Airlines Logo
5:05 pm - 12:30 pmCGN-SEA
27h 25m1 stop
$962Multiple Airlines
Find Deal
Sat, Oct 25 - Thu, Oct 30
Multiple Airlines Logo
7:15 pm - 12:10 pmSEA-CGN
56h 55m2 stops
Multiple Airlines Logo
5:05 pm - 7:27 pmCGN-SEA
58h 22m2 stops
$1,018Multiple Airlines
Find Deal
Sat, Oct 25 - Thu, Oct 30
Multiple Airlines Logo
5:30 am - 11:20 pmSEA-CGN
32h 50m3 stops
Multiple Airlines Logo
8:15 pm - 6:00 pmCGN-SEA
29h 45m3 stops
$1,081Multiple Airlines
Find Deal
Sat, Oct 25 - Thu, Oct 30
Turkish Airlines Logo
8:00 pm - 10:35 amSEA-CGN
30h 35m1 stop
Turkish Airlines Logo
11:35 am - 6:05 pmCGN-SEA
38h 30m1 stop
$1,197Turkish Airlines
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Sat, Oct 25 - Wed, Oct 29

British Airways flights from Seattle to Cologne

Our best British Airways deals on Seattle to Cologne flight tickets
British Airways
Mar 13
SEA2:35 pmSeattle/Tacoma Intl
17h 45m
1 stop
CGN4:20 pmCologne Köln/Bonn
Mar 17
CGN5:05 pmCologne Köln/Bonn
32h 50m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
$593
Find similar
British Airways
Dec 1
SEA1:59 pmSeattle/Tacoma Intl
17h 11m
2 stops
CGN4:10 pmCologne Köln/Bonn
Dec 5
CGN11:20 amCologne Köln/Bonn
16h 35m
2 stops
SEA6:55 pmSeattle/Tacoma Intl
$1,885
Find similar

United Airlines flights from Seattle to Cologne

Our best United Airlines deals on Seattle to Cologne flight tickets
United Airlines
Mar 13
SEA4:10 pmSeattle/Tacoma Intl
17h 00m
1 stop
CGN5:10 pmCologne Köln/Bonn
Mar 17
CGN1:35 pmCologne Köln/Bonn
28h 24m
2 stops
SEA9:59 amSeattle/Tacoma Intl
$711
Find similar
United Airlines
Mar 13
SEA4:10 pmSeattle/Tacoma Intl
17h 00m
1 stop
CGN5:10 pmCologne Köln/Bonn
Mar 17
CGN1:35 pmCologne Köln/Bonn
43h 16m
3 stops
SEA12:51 amSeattle/Tacoma Intl
$712
Find similar
United Airlines
Mar 13
SEA3:00 pmSeattle/Tacoma Intl
18h 10m
2 stops
CGN5:10 pmCologne Köln/Bonn
Mar 17
CGN1:35 pmCologne Köln/Bonn
28h 24m
2 stops
SEA9:59 amSeattle/Tacoma Intl
$739
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Seattle to Cologne that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Fri 3/13

2:35 pm-4:20 pm

1 stop17h 45m

Cologne Köln/Bonn

Tue 3/17

5:05 pm-5:55 pm

1 stop32h 50m

$593

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Fri 3/13

4:10 pm-5:10 pm

1 stop17h 00m

Cologne Köln/Bonn

Tue 3/17

1:35 pm-9:59 am

2 stops28h 24m

$711

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Fri 3/13

4:10 pm-5:10 pm

1 stop17h 00m

Cologne Köln/Bonn

Tue 3/17

1:35 pm-12:51 am

3 stops43h 16m

$712

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Fri 3/13

3:00 pm-5:10 pm

2 stops18h 10m

Cologne Köln/Bonn

Tue 3/17

1:35 pm-9:59 am

2 stops28h 24m

$739

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Fri 3/13

3:00 pm-5:10 pm

2 stops18h 10m

Cologne Köln/Bonn

Tue 3/17

1:35 pm-12:51 am

3 stops43h 16m

$740

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Sat 10/25

3:50 pm-11:20 pm

2 stops22h 30m

Cologne Köln/Bonn

Wed 10/29

7:40 pm-6:00 pm

3 stops30h 20m

$837

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Sat 10/25

7:15 pm-12:10 pm

2 stops56h 55m

Cologne Köln/Bonn

Thu 10/30

5:05 pm-12:30 pm

1 stop27h 25m

$962

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Sat 10/25

7:15 pm-12:10 pm

2 stops56h 55m

Cologne Köln/Bonn

Thu 10/30

5:05 pm-7:27 pm

2 stops58h 22m

$1,018

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Sat 10/25

5:30 am-11:20 pm

3 stops32h 50m

Cologne Köln/Bonn

Thu 10/30

8:15 pm-6:00 pm

3 stops29h 45m

$1,081

SeattleCologne

SEA - CGN

SEACGN

Seattle/Tacoma Intl

Sat 10/25

8:00 pm-10:35 am

1 stop30h 35m

Cologne Köln/Bonn

Wed 10/29

11:35 am-6:05 pm

1 stop38h 30m

$1,197

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cologne from

How to get the cheapest flight ticket from Seattle to Cologne

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Cologne?

The cheapest day to depart from Seattle to Cologne is on a Wednesday when prices can be found for as low as $887. On the other hand, Friday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,168.

What is the cheapest time of day to depart on your flight to Cologne?

The cheapest time of day to fly to Cologne is at noon when flights can be purchased for as low as $1,070. In the afternoon is when there is more demand to fly to Cologne, so prices are often more expensive at around $1,532 per ticket.

When to book flights from Seattle to Cologne

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Cologne according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Cologne (SEA to CGN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Cologne

Direct flights

None
There are no direct flights from Seattle to Cologne. There are no popular flight routes from Seattle to Cologne.
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  • How far is Seattle/Tacoma Intl to Cologne Köln/Bonn by plane?

    The straight-line distance from Seattle/Tacoma Intl to Cologne Köln/Bonn is 4990.0 mi. A reasonable flight in good conditions will take 16h 17m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Cologne Köln/Bonn Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Cologne Köln/Bonn Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Cologne Köln/Bonn Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Cologne Köln/Bonn Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Cologne Köln/Bonn Airport.

  • What documentation or ID do you need to fly to Cologne Köln/Bonn Airport?

    The necessary travel and health documents for your Cologne Köln/Bonn Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Cologne?

Best airlines flying from Seattle to Cologne

Compare and see reviews for airlines that fly from Seattle to Cologne with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $578Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Cologne?

Finding the right flight to Cologne from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Cologne quick and easy, saving you time and money.

Can I find flights from Seattle to Cologne with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Cologne from Seattle with this policy.

How can momondo help me find flights from Seattle to Cologne?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cologne from Seattle.

I’m not ready to book a flight from Seattle to Cologne right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Cologne from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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