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Flights from Seattle to Cologne

Search cheap flights from Seattle to Cologne in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$733, and round-trip tickets start at US$867.

      • SEA 18:50
        13h 30m
        1 stop
        CGN 17:20
        Seattle - Cologne | Sun, May 24 | Lufthansa
        CGN 18:05
        31h 54m
        1 stop
        SEA 16:59
        Cologne - Seattle | Mon, Jun 1 | Lufthansa
        US$867 US$1,287
        33% off
        33% off
        US$1,287 US$867
      • SEA 19:10
        29h 15m
        1 stop
        CGN 09:25
        Seattle - Cologne | Tue, May 26 | Turkish Airlines
        CGN 19:10
        31h 5m
        1 stop
        SEA 17:15
        Cologne - Seattle | Tue, Jun 2 | Turkish Airlines
        US$916 US$1,287
        28% off
        28% off
        US$1,287 US$916
      • SEA 18:50
        32h 35m
        1 stop
        CGN 12:25
        Seattle - Cologne | Wed, May 27 | Lufthansa
        CGN 08:30
        17h 29m
        1 stop
        SEA 16:59
        Cologne - Seattle | Tue, Jun 2 | Lufthansa
        US$936 US$1,287
        27% off
        27% off
        US$1,287 US$936
      • SEA 19:10
        29h 15m
        1 stop
        CGN 09:25
        Seattle - Cologne | Wed, May 27 | Turkish Airlines
        CGN 19:10
        31h 5m
        1 stop
        SEA 17:15
        Cologne - Seattle | Tue, Jun 2 | Turkish Airlines
        US$946
        26% off
        US$1,287 US$946
      • SEA 19:10
        29h 15m
        1 stop
        CGN 09:25
        Seattle - Cologne | Sun, May 24 | Turkish Airlines
        CGN 19:10
        31h 5m
        1 stop
        SEA 17:15
        Cologne - Seattle | Sun, May 31 | Turkish Airlines
        US$997
        23% off
        US$1,287 US$997
      • SEA 19:10
        38h
        1 stop
        CGN 18:10
        Seattle - Cologne | Sat, May 23 | Turkish Airlines
        CGN 19:10
        31h 5m
        1 stop
        SEA 17:15
        Cologne - Seattle | Sat, May 30 | Turkish Airlines
        US$1,026
        20% off
        US$1,287 US$1,026
      • SEA 18:50
        15h 40m
        1 stop
        CGN 19:30
        Seattle - Cologne | Wed, Jun 17 | Lufthansa
        CGN 08:30
        17h 29m
        1 stop
        SEA 16:59
        Cologne - Seattle | Tue, Jun 23 | Lufthansa
        US$1,136
        12% off
        US$1,287 US$1,136
      • SEA 18:50
        13h 30m
        1 stop
        CGN 17:20
        Seattle - Cologne | Wed, Jun 10 | Lufthansa
        CGN 13:05
        12h 54m
        1 stop
        SEA 16:59
        Cologne - Seattle | Wed, Jun 17 | Lufthansa
        US$1,145
        11% off
        US$1,287 US$1,145
      • SEA 13:00
        17h 25m
        1 stop
        CGN 14:00
        Seattle - Cologne | Sun, May 24 | Normal Airline
        CGN 15:00
        6h
        Nonstop
        SEA 16:00
        Cologne - Seattle | Tue, May 26 | Normal Airline
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      • SEA 19:10
        29h 15m
        1 stop
        CGN 09:25
        Seattle - Cologne | Mon, May 25 | Turkish Airlines
        US$733 US$1,642
        55% off
        55% off
        US$1,642 US$733
      • SEA 17:30
        20h 15m
        1 stop
        CGN 22:45
        Seattle - Cologne | Mon, May 25 | Alaska Airlines
        US$760 US$1,642
        54% off
        54% off
        US$1,642 US$760
      • SEA 18:20
        19h
        1 stop
        CGN 22:20
        Seattle - Cologne | Mon, May 25 | Virgin Atlantic
        US$897 US$1,642
        45% off
        45% off
        US$1,642 US$897
      • SEA 18:20
        19h
        1 stop
        CGN 22:20
        Seattle - Cologne | Mon, May 25 | Delta Air Lines
        US$932
        43% off
        US$1,642 US$932
      • SEA 18:20
        19h
        1 stop
        CGN 22:20
        Seattle - Cologne | Mon, May 25 | KLM
        US$987
        40% off
        US$1,642 US$987
      • SEA 18:20
        19h
        1 stop
        CGN 22:20
        Seattle - Cologne | Mon, May 25 | Air France
        US$987
        40% off
        US$1,642 US$987
      • SEA 13:30
        15h 50m
        1 stop
        CGN 14:20
        Seattle - Cologne | Mon, May 25 | American Airlines
        US$1,321
        20% off
        US$1,642 US$1,321
      • SEA 13:30
        15h 50m
        1 stop
        CGN 14:20
        Seattle - Cologne | Mon, May 25 | Finnair
        US$1,461
        11% off
        US$1,642 US$1,461
      • SEA 13:00
        17h 25m
        1 stop
        CGN 14:00
        Seattle - Cologne | Sun, May 24 | Normal Airline
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Displayed flight fares from Seattle to Cologne are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Frequently Asked Questions

  • What are the cheapest flights from Seattle to Cologne (SEA-CGN)?

    Based on Trip.com data, Turkish Airlines offers one-way fares as low as US$733 on Cheapest nonstop routes (e.g. SEA to CGN on Mon, May 25), while Lufthansa offers Cheapest nonstop round-trips from US$867 departing on Sun, May 24 and returning on Mon, Jun 1.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Cologne is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Seattle to Cologne, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, May 25, with one-way flights priced at just US$733.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Turkish Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Cologne travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Cologne is October, when demand for travel is lower.
  • After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Seattle to Cologne on May 31, 2026 with Lufthansa, with prices starting at US$1,240.
  • The time difference between Cologne and Seattle is 9h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.