IAD - CGN

$312 Find Cheap Flights from Washington Dulles Airport to Cologne

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Cologne departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Cologne

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Cologne, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Cologne, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$786
Lufthansa
Wed 11/11Mon 11/16
IAD - CGN • 1 stop
Cheapest one-way
$312
Multiple Airlines
Sat 9/5
IAD - CGN • 2 stops
Top airlines
Cheapest • from $832 (round-trip)
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Cologne. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $685 (round-trip)
Shortest trip • 10h 05m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Cologne!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Cologne (IAD-CGN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Cologne that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Cologne

Wed, Nov 11 - Mon, Nov 16
Lufthansa Logo
10:55 pm - 7:15 pm
IAD
-
CGN
14h 20m
1 stop
Lufthansa Logo
9:20 am - 8:05 pm
CGN
-
IAD
16h 45m
1 stop
$786Lufthansa
Wed, Nov 11 - Mon, Nov 16
Multiple Airlines Logo
7:40 pm - 11:35 pm
IAD
-
CGN
21h 55m
3 stops
Multiple Airlines Logo
9:10 am - 2:45 pm
CGN
-
IAD
35h 35m
2 stops
$815Multiple Airlines
Sun, Aug 16 - Sun, Aug 23
Lufthansa Logo
10:20 pm - 5:20 pm
IAD
-
CGN
13h 00m
1 stop
Lufthansa Logo
8:30 am - 7:25 pm
CGN
-
IAD
16h 55m
1 stop
$832Lufthansa
Mon, Nov 16 - Fri, Nov 20
United Airlines Logo
5:35 pm - 12:50 pm
IAD
-
CGN
13h 15m
1 stop
United Airlines Logo
9:10 am - 8:05 pm
CGN
-
IAD
16h 55m
1 stop
$835United Airlines
Mon, Nov 16 - Fri, Nov 20
United Airlines Logo
10:55 pm - 5:15 pm
IAD
-
CGN
12h 20m
1 stop
United Airlines Logo
9:10 am - 8:05 pm
CGN
-
IAD
16h 55m
1 stop
$836United Airlines
Wed, Nov 11 - Mon, Nov 16
Lufthansa Logo
9:00 am - 12:50 pm
IAD
-
CGN
21h 50m
2 stops
Lufthansa Logo
9:20 am - 8:05 pm
CGN
-
IAD
16h 45m
1 stop
$845Lufthansa
Sun, Aug 16 - Sun, Aug 23
Lufthansa Logo
10:20 pm - 7:30 pm
IAD
-
CGN
15h 10m
1 stop
Lufthansa Logo
8:30 am - 4:05 pm
CGN
-
IAD
13h 35m
2 stops
$854Lufthansa
Sun, Sep 13 - Tue, Sep 22
Lufthansa Logo
10:20 pm - 7:30 pm
IAD
-
CGN
15h 10m
1 stop
Lufthansa Logo
8:30 am - 7:25 pm
CGN
-
IAD
16h 55m
1 stop
$855Lufthansa
Mon, Nov 16 - Fri, Nov 20
United Airlines Logo
5:45 pm - 12:50 pm
IAD
-
CGN
13h 05m
2 stops
United Airlines Logo
9:10 am - 8:05 pm
CGN
-
IAD
16h 55m
1 stop
$860United Airlines
Sun, Aug 16 - Sun, Aug 23
Air Canada Logo
4:20 pm - 5:20 pm
IAD
-
CGN
19h 00m
2 stops
Air Canada Logo
8:30 am - 8:24 pm
CGN
-
IAD
17h 54m
2 stops
$862Air Canada
Booking Insights

KAYAK's insights & trends for Dulles Intl to Cologne flights

Get data-powered insights and trends into flights from Dulles Intl to Cologne to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Cologne?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Cologne departing in November.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Cologne?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Cologne, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Cologne is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,217 and $1,080 respectively.

Good to know

Low seasonNovember
Cheapest flight$312
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly with an average 51% increase in price.
Flight from Washington Dulles Airport to Cologne

When to book flights from Dulles Intl to Cologne

Are your dates flexible? Find out the best times to travel from Dulles Intl to Cologne based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Cologne flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Cologne?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Cologne was $348 for a one-way ticket and $815 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Cologne?

    Yes, you’ll need a passport to travel to Cologne from Washington Dulles Airport.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Cologne?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Cologne?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Cologne.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Cologne?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Cologne.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Cologne?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cologne from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Cologne?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cologne with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and CGN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Cologne?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cologne from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dulles Intl to Cologne

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Cologne. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Cologne? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
LufthansaOverall score based on 8052 reviews
7.6Crew
6.8Comfort
6.4Entertainment
7.0Boarding
6.3Food
Airline reviews

They messed up my seat so I didn’t get the one I paid for

2.0 MediocreAnonymous, Jun 2026
DFW - FRA
Read more Lufthansa reviews

They messed up my seat so I didn’t get the one I paid for

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

Food choices limited & not enticing Seats quite uncomfortable & difficult to control

Definitely get premium economy on a flight this long if you can. Your legs and while body will thank you.

Everything you need to know for your flight from Dulles Intl to Cologne

Information on your arrival and departure airports