Cheap Flights from Washington D.C. to Cologne from $479

Frequently Asked Questions

• What are the cheapest flights from Washington D.C. to Cologne (WAS-CGN)?

  Based on Trip.com data, United Airlines offers one-way fares as low as $479 on Cheapest nonstop routes (e.g. IAD to CGN on Thu, Jul 30), while United Airlines offers Cheapest nonstop round-trips from $970 departing on Wed, Jul 22 and returning on Wed, Jul 29.

• Which airlines offer flights from Washington D.C. to Cologne?

  At the moment, several airlines serve connecting flights from Washington D.C. to Cologne, including: Turkish Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from Washington D.C. to Cologne?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. 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.

• How can I find the best deals on flights from Washington D.C. to Cologne?

  To find best deals on flights from Washington D.C. 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 Thu, Jul 30, with one-way flights priced at just $479.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United 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 December.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Washington D.C. (WAS) to Cologne (CGN) the cheapest?

  The cheapest months to fly from Washington D.C. to Cologne is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Washington D.C. to Cologne on?

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Washington D.C. to Cologne on June 24, 2026 with Lufthansa, with prices starting at $1,141.

• Which airports can I fly to for Cologne from Washington D.C.?

  You can land at any one of the following hubs in Cologne, with Dulles International Airport to Cologne Bonn Airport (IAD-CGN) is by far the most common option on this route: Cologne Bonn Airport (CGN).

• Is there any time difference between Washington D.C. and Cologne?

  The time difference between Cologne and Washington D.C. is 6h.

• How do I change or cancel my ticket from Washington D.C. to Cologne?

  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.