WAS - CGN

$548 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Cologne departing on 3/8. 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
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Everything you should know

Cheapest round-trip
$625
Typical prices: $684-$1,029
Turkish Airlines
Tue 4/28Wed 5/6
IAD - CGN • 1 stop
Cheapest one-way
$519
Turkish Airlines
Sun 3/8
IAD - CGN • 1 stop
Top airlines
Turkish Airlines
Cheapest • from $625 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Cologne. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
London (LHR)
Cheapest • Avg $756 (round-trip)
Frankfurt am Main (FRA)
Shortest trip • 9h 54m (one-way)
Insights
Insights
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Insights
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We hope you love your trip to Cologne!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Cologne (WAS-CGN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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 Washington, D.C. to Cologne

Tue, Apr 28 - Wed, May 6
Turkish Airlines Logo
9:45 pm - 1:50 pm
IAD
-
CGN
34h 05m
1 stop
Turkish Airlines Logo
7:10 pm - 11:35 am
CGN
-
IAD
22h 25m
1 stop
$625Turkish Airlines
Tue, Mar 17 - Mon, Mar 23
Turkish Airlines Logo
2:30 pm - 10:35 am
IAD
-
CGN
15h 05m
1 stop
Turkish Airlines Logo
11:35 am - 12:45 pm
CGN
-
IAD
30h 10m
1 stop
$636Turkish Airlines
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
4:10 pm - 12:25 pm
DCA
-
CGN
14h 15m
2 stops
Multiple Airlines Logo
8:30 am - 6:03 pm
CGN
-
DCA
15h 33m
2 stops
$772Multiple Airlines
Tue, Mar 17 - Mon, Mar 23
British Airways Logo
9:35 pm - 4:30 pm
BWI
-
CGN
13h 55m
1 stop
British Airways Logo
5:15 pm - 7:45 pm
CGN
-
BWI
31h 30m
1 stop
$786British Airways
Tue, Apr 14 - Tue, Apr 21
Air Canada Logo
9:40 am - 5:20 pm
DCA
-
CGN
25h 40m
2 stops
Air Canada Logo
1:05 pm - 9:55 pm
CGN
-
DCA
14h 50m
2 stops
$804Air Canada
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
6:55 pm - 5:20 pm
BWI
-
CGN
16h 25m
2 stops
United Airlines Logo
1:05 pm - 9:39 am
CGN
-
BWI
26h 34m
2 stops
$813United Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
6:59 am - 12:25 pm
DCA
-
CGN
23h 26m
2 stops
Multiple Airlines Logo
1:05 pm - 9:55 pm
CGN
-
DCA
14h 50m
2 stops
$821Multiple Airlines
Tue, Mar 17 - Mon, Mar 23
British Airways Logo
6:37 pm - 4:30 pm
BWI
-
CGN
16h 53m
2 stops
British Airways Logo
5:15 pm - 7:45 pm
CGN
-
BWI
31h 30m
1 stop
$848British Airways
Fri, May 1 - Thu, May 7
United Airlines Logo
6:15 am - 5:40 pm
BWI
-
CGN
29h 25m
2 stops
United Airlines Logo
1:05 pm - 2:13 pm
CGN
-
BWI
55h 08m
2 stops
$853United Airlines
Sun, Apr 12 - Sun, Apr 19
Air Canada Logo
4:10 pm - 12:25 pm
DCA
-
CGN
14h 15m
2 stops
Air Canada Logo
1:05 pm - 9:55 pm
CGN
-
DCA
14h 50m
2 stops
$984Air Canada
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Cologne flights

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

Which airlines provide the cheapest flights from Washington, D.C. to Cologne?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. to Cologne were found on Turkish Airlines ($625) and British Airways ($786).

Good to know

Cheapest flight$519
Flight from Washington Dulles Airport to Cologne

When to book flights from Washington, D.C. to Cologne

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 flights from Washington, D.C. to Cologne

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Cologne was $519 for a one-way ticket and $625 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Cologne?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington, D.C. and on arrival in Cologne.

  • Which airports will I be using when flying from Washington, D.C. to Cologne?

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in Cologne. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Cologne Köln/Bonn.

  • Which aircraft models fly most regularly from Washington, D.C. to Cologne?

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

  • Which airline alliances offer flights from Washington, D.C. to Cologne?

    oneworld, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Cologne, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Cologne, United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Cologne are United Airlines and Lufthansa. With an average price for the route of $908 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $913 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Cologne.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cologne from Washington, D.C. 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, D.C. 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, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Washington, D.C. 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 Washington, D.C. 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.
7.4
United AirlinesOverall score based on 9378 reviews
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
8.1Crew
Airline reviews

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

10.0 ExcellentDr. Joseph, Feb 2026
DCA - ORD
Read more United Airlines reviews

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Very good, i got two seats for myself, and was comfortable with the blanket i got

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Everything you need to know for your flight from Washington, D.C. to Cologne

Information on your arrival and departure airports