$368 Cheap Flights from Washington (IAD) to Cologne (CGN)

View $368 flight on Wed, Feb 10, 2027Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Cologne - Bonn Airport (CGN)

Cheap Flights from Washington to Cologne (IAD-CGN)

Prices were available within the past 7 days and start at $368 for one-way flights and $766 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Thu, Sep 10 - Sun, Sep 20
IAD
Washington
CGN
Cologne
$766 Roundtrip, found 3 days ago
$766
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Thu, Sep 10 from Washington to Cologne, returning Sun, Sep 20, priced at $766 found 3 days ago
Lufthansa
Fri, Dec 4 - Fri, Dec 11
IAD
Washington
CGN
Cologne
$769 Roundtrip, found 3 days ago
$769
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Dec 4 from Washington to Cologne, returning Fri, Dec 11, priced at $769 found 3 days ago
Lufthansa
Fri, Dec 4 - Fri, Dec 11
IAD
Washington
CGN
Cologne
$771 Roundtrip, found 3 days ago
$771
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Dec 4 from Washington to Cologne, returning Fri, Dec 11, priced at $771 found 3 days ago
United
Thu, Apr 16 - Mon, Apr 20
IAD
Washington
CGN
Cologne
$792 Roundtrip, found 8 hours ago
$792
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Apr 16 from Washington to Cologne, returning Mon, Apr 20, priced at $792 found 8 hours ago
Air Canada
Wed, Feb 10 - Mon, Feb 15
IAD
Washington
CGN
Cologne
$793 Roundtrip, found 4 days ago
$793
Roundtrip
found 4 days ago
Select Air Canada flight, departing Wed, Feb 10 from Washington to Cologne, returning Mon, Feb 15, priced at $793 found 4 days ago
Air Canada
Mon, May 4 - Fri, May 15
IAD
Washington
CGN
Cologne
$795 Roundtrip, found 12 hours ago
$795
Roundtrip
found 12 hours ago
Select Air Canada flight, departing Mon, May 4 from Washington to Cologne, returning Fri, May 15, priced at $795 found 12 hours ago
United
Mon, Apr 27 - Mon, May 4
IAD
Washington
CGN
Cologne
$795 Roundtrip, found 16 hours ago
$795
Roundtrip
found 16 hours ago
Select United flight, departing Mon, Apr 27 from Washington to Cologne, returning Mon, May 4, priced at $795 found 16 hours ago
United
Thu, Apr 30 - Tue, May 5
IAD
Washington
CGN
Cologne
$796 Roundtrip, found 12 hours ago
$796
Roundtrip
found 12 hours ago
Select United flight, departing Thu, Apr 30 from Washington to Cologne, returning Tue, May 5, priced at $796 found 12 hours ago
Air Canada
Mon, Apr 20 - Wed, May 6
IAD
Washington
CGN
Cologne
$796 Roundtrip, found 5 days ago
$796
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon, Apr 20 from Washington to Cologne, returning Wed, May 6, priced at $796 found 5 days ago
Austrian Airlines
Tue, May 5 - Tue, May 12
IAD
Washington
CGN
Cologne
$873 Roundtrip, found 2 days ago
$873
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Tue, May 5 from Washington to Cologne, returning Tue, May 12, priced at $873 found 2 days ago

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) cost?
You can find cheap one-way flights from $368 and cheap return flights from $766 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) with Expedia. One-way flights typically cost between $671 and $4873, and return flights often range between $794 and $6499. 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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) 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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
The cheapest month to fly from IAD to CGN 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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
Enter IAD to CGN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
Iberia is one of the cheapest airlines offering connecting flights from Washington, DC (IAD) to Cologne (CGN), with round-trip tickets starting from around $604 with a layover in Dallas-Fort Worth Intl. (DFW). 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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn), 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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
The earliest flight from Washington Dulles International Airport (IAD) to Cologne - Bonn (CGN) typically departs at around 6:15 AM, operated by United, Austrian Airlines, and Eurowings. An early departure like this allows you to make the most of your time in Cologne upon arrival. This is a seasonal service active in September and October. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
The most popular departure times for flights from Washington D.C. (IAD) to Cologne (CGN) are from 3pm to 6pm. About 41% of passengers prefer this time window. Many major carriers, including Lufthansa and United Airlines, offer flights during this window. This timing works well because it allows you to have a full day in D.C. before your flight.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
Flights from IAD to CGN with one stop typically take around 17 hours 30 minutes, covering approximately 3,987 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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
You can fly business class between IAD and CGN. Airlines that offer business class service on this route include:

  • Turkish Airlines
  • Lufthansa
  • United Airlines
  • British Airways
  • Austrian Airlines
  • TAP Portugal
  • Swiss International Air Lines

First class is available with Lufthansa.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) 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 Cologne from Washington Dulles Intl. (IAD)?
If you're planning to travel to Cologne from Washington Dulles Intl. (IAD), you can fly into Cologne - Bonn (CGN) Some flights may connect through major hubs like Pearson Intl. (YYZ), Pierre Elliott Trudeau Intl. (YUL), Frankfurt Intl. (FRA) before reaching Cologne. 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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) 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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) Cologne 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 Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) to Cologne (CGN-Cologne - Bonn) 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
Washington Dulles Intl.
Destination airport
Cologne - Bonn
Airlines serving
Air Canada, Austrian Airlines, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$765
Distance
3986 mi

*Flight schedules are subject to change.

*Available to One Key members.

 

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