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$611 Cheap Flights from Cologne (CGN) to Seattle (SEA)

View $611 flight on Sat, Feb 27, 2027Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Cologne to Seattle (CGN-SEA)

Prices were available within the past 7 days and start at $611 for one-way flights and $666 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Thu, Sep 10 - Sun, Sep 27
CGN
Cologne
SEA
Seattle
$666 Roundtrip, found 2 days ago
$666
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Thu, Sep 10 from Cologne to Seattle, returning Sun, Sep 27, priced at $666 found 2 days ago
Lufthansa
Thu, Sep 10 - Tue, Sep 15
CGN
Cologne
SEA
Seattle
$666 Roundtrip, found 3 days ago
$666
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, Sep 10 from Cologne to Seattle, returning Tue, Sep 15, priced at $666 found 3 days ago
United
Thu, Sep 24 - Wed, Sep 30
CGN
Cologne
SEA
Seattle
$669 Roundtrip, found 6 days ago
$669
Roundtrip
found 6 days ago
Select United flight, departing Thu, Sep 24 from Cologne to Seattle, returning Wed, Sep 30, priced at $669 found 6 days ago
Lufthansa
Thu, Sep 10 - Tue, Sep 15
CGN
Cologne
SEA
Seattle
$671 Roundtrip, found 3 days ago
$671
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, Sep 10 from Cologne to Seattle, returning Tue, Sep 15, priced at $671 found 3 days ago
Lufthansa
Thu, Sep 10 - Sun, Sep 27
CGN
Cologne
SEA
Seattle
$676 Roundtrip, found 2 days ago
$676
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Thu, Sep 10 from Cologne to Seattle, returning Sun, Sep 27, priced at $676 found 2 days ago
Lufthansa
Thu, Sep 10 - Tue, Sep 15
CGN
Cologne
SEA
Seattle
$676 Roundtrip, found 3 days ago
$676
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, Sep 10 from Cologne to Seattle, returning Tue, Sep 15, priced at $676 found 3 days ago
Lufthansa
Sat, Sep 5 - Sat, Sep 12
CGN
Cologne
SEA
Seattle
$678 Roundtrip, found 5 days ago
$678
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Sat, Sep 5 from Cologne to Seattle, returning Sat, Sep 12, priced at $678 found 5 days ago
Austrian Airlines
Thu, Sep 24 - Wed, Sep 30
CGN
Cologne
SEA
Seattle
$798 Roundtrip, found 6 days ago
$798
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Thu, Sep 24 from Cologne to Seattle, returning Wed, Sep 30, priced at $798 found 6 days ago
Air Canada
Tue, Sep 15 - Fri, Sep 25
CGN
Cologne
SEA
Seattle
$833 Roundtrip, found 6 days ago
$833
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Sep 15 from Cologne to Seattle, returning Fri, Sep 25, priced at $833 found 6 days ago
Swiss International Air Lines
Thu, Sep 24 - Wed, Sep 30
CGN
Cologne
SEA
Seattle
$882 Roundtrip, found 6 days ago
$882
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Thu, Sep 24 from Cologne to Seattle, returning Wed, Sep 30, priced at $882 found 6 days ago

What you need to know for your flight from Cologne - Bonn to Seattle - Tacoma Intl.

Cologne (CGN) to Seattle (SEA) at a glance

Travel between Cologne (CGN) and Seattle (SEA) with a selection of airlines on this international long-haul route. Evaluate options from both full-service carriers and low-cost airlines to discover the itinerary that aligns with your budget, schedule, and travel preferences as you delve into Seattle’s renowned attractions and neighborhoods. Access key information for flights departing from Cologne Bonn Airport (CGN) to Seattle Tacoma International Airport (SEA).

  • Fastest flight duration: around 11h 30m in-flight, plus roughly 5h 45m layover with one stop
  • Route distance: roughly 5,000 miles (8,050 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $370–$930, depending on seasonality and how far ahead you book

Flights from Cologne - Bonn Airport (CGN) to Seattle - Tacoma International Airport (SEA)

Based on recent traveler bookings, here are the top airlines flying from Cologne to Seattle, typically favored for their one-stop services. Many flights feature a layover at Heathrow Airport (LHR), lasting around 5 hours and 45 minutes. This allows you to customize your journey by balancing price, total travel time, and cabin class for the ideal itinerary.

  • British Airways: As a major full-service airline, British Airways provides a convenient one-stop service on this route. One-way fares generally fall between $370 and $370. The airline accounts for around 67% of all departures, with an in-flight duration of 11 hours and 30 minutes, totaling approximately 17 hours and 15 minutes for the complete journey, including layover time.

Alternative route from Cologne (CGN) to Seattle (SEA)

  • Duesseldorf to Seattle (DUS-SEA): Düsseldorf International Airport (DUS) is located approximately 31 miles from Cologne - Bonn Airport (CGN). One-way economy fares for this journey usually fall between $420 and $820, influenced by the season and the timing of your booking. This route generally features one-stop flights, with frequent layovers at Heathrow Airport (LHR) and Schiphol Airport (AMS). Leading airlines servicing this route include British Airways and Delta. Additionally, business class service is available for travelers seeking a more premium experience.

How to find the best prices for flights from Cologne (CGN) to Seattle (SEA)

Getting some of the best deals on flights from Cologne to Seattle is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking at least two months in advance, which aligns with when most travelers make their reservations. Departures in the morning (5 AM to 12 PM) tend to offer lower prices and are also the most sought-after flight times, while Thursday is both a popular travel day and often provides cheaper prices.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from Cologne - Bonn Airport

Seattle welcomes travelers from Cologne with a range of transport options based on price, convenience, and proximity. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles away on foot, while Tukwila Station, a train station, can be reached by car approximately 4.3 miles from the airport.

Frequently asked questions

How much does a flight from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $611 and cheap return flights from $666 Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights typically cost between $372 and $2984. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest month to fly from CGN to SEA is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter CGN to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Lufthansa, United and Air Canada are just some of the carriers that fly from Cologne (CGN) to Seattle, WA (SEA). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Cologne - Bonn Airport (CGN) to Seattle - Tacoma International Airport (SEA) usually departs at around 5:45 AM. This flight is operated by Lufthansa and Air Canada. Departing early allows you to maximize your time in Seattle. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
a Thursday typically has the most flights from Cologne - Bonn (CGN) to Seattle - Tacoma Intl. (SEA), with approximately 28 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Lufthansa, Eurowings, and British Airways.
What are the most popular departure times for flights from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are from 6am to 9am. About 42% of passengers prefer this time window. Major airlines like Lufthansa operate flights during this period. This timing is popular because it allows you to arrive in Seattle with a full day ahead of you.
How long does it take to fly from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A flight from CGN to SEA with a layover takes around 13 hours 20 minutes, with the route covering approximately 5,010 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Business class is available on flights from CGN to SEA. Airlines that offer business class service on this route include:

  • Lufthansa
  • Eurowings
  • British Airways
  • Turkish Airlines

How do I earn miles on a Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Cologne - Bonn (CGN)?
From Cologne - Bonn (CGN), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like Heathrow (LHR), Franz Josef Strauss Intl. (MUC), Frankfurt Intl. (FRA) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Cologne (CGN-Cologne - Bonn) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Cologne - Bonn
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Austrian Airlines, Lufthansa, Swiss International Air Lines, Turkish Airlines
Roundtrip price
$665
Distance
5009 mi

Book with confidence

Cologne to Seattle Flights

The cheapest times to fly from Cologne to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cologne to Seattle are during the month of September. You can find some of the cheapest flights from Cologne to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cologne to Seattle

Sunday is one of the best days to book for cheap flights from Cologne to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cologne to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cologne to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $611 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cologne to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cologne to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Cologne to Seattle Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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