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$431+ Cheap flights from Washington, D.C. (WAS) to Cologne (CGN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — CGN
Nov 16 — Nov 231
Sun 11/16
Sun 11/23
1 adult, Economy
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Find flight deals from Washington, D.C. to Cologne

Cheapest flights from Washington, D.C. to Cologne
Explore the most affordable flight options available from Washington, D.C. to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3010:55 pmIAD - CGN
1 stop12h 15mLufthansa
Sun 12/79:10 amCGN - IAD
1 stop16h 55mLufthansa
Deal found 10/16$575
This British Airways deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:20 pmIAD - CGN
1 stop15h 50mBritish Airways
Wed 11/125:15 pmCGN - IAD
1 stop28h 20mBritish Airways
Deal found 10/16$577
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1710:55 pmIAD - CGN
1 stop12h 15mLufthansa
Tue 12/27:40 pmCGN - IAD
1 stop30h 25mLufthansa
Deal found 10/16$586
This AirNGo deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/179:45 amIAD - CGN
2 stops20h 25mAir Canada
Tue 12/26:55 pmCGN - IAD
2 stops31h 31mAir Canada
Deal found 10/16$587
This FlightHub deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:15 pmIAD - CGN
1 stop31h 20mTurkish Airlines
Tue 12/26:15 pmCGN - IAD
1 stop31h 05mTurkish Airlines
Deal found 10/15$608
This FlightHub deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/292:30 pmIAD - CGN
1 stop21h 45mTurkish Airlines
Wed 11/126:15 pmCGN - IAD
1 stop31h 05mTurkish Airlines
Deal found 10/14$609
This Flighttix deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/179:00 amIAD - CGN
2 stops21h 10mMultiple Airlines
Tue 12/25:55 pmCGN - IAD
1 stop32h 10mMultiple Airlines
Deal found 10/16$611
This KAYAK deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/189:45 pmIAD - CGN
1 stop12h 45mBritish Airways
Tue 12/211:45 amCGN - IAD
1 stop33h 50mBritish Airways
Deal found 10/15$612
This Sembo deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3011:05 amDCA - CGN
2 stops19h 05mAir Canada
Sun 12/79:10 amCGN - DCA
2 stops14h 55mAir Canada
Deal found 10/16$617
This KAYAK deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:55 pmIAD - CGN
1 stop14h 00mLufthansa
Wed 12/31:20 pmCGN - IAD
1 stop12h 45mLufthansa
Deal found 10/15$620
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:55 pmIAD - CGN
1 stop12h 15mUnited Airlines
Sat 12/69:10 amCGN - IAD
1 stop16h 55mUnited Airlines
Deal found 10/15$621
This Expedia deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/309:45 amIAD - CGN
2 stops20h 25mAir Canada
Sun 12/79:10 amCGN - IAD
2 stops17h 16mAir Canada
Deal found 10/16$622

Cheap flight deals from Washington, D.C. to Cologne

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Cologne (CGN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$527
(British Airways)

One-way from

$431
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$876
Provider with most accurate pricing for Washington, D.C. (WAS)-Cologne Köln/Bonn flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Cologne Köln/Bonn flights.
Search Deals
From Washington, D.C. (WAS) to Cologne Köln/Bonn
Search Deals
One-way flight from Washington, D.C. (WAS) to Cologne Köln/Bonn
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($78 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Cologne that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Cologne that are best for you.

Fly from

Washington, D.C.

Fly to

Cologne

Route

Depart

Return

Price

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 2/11

9:45 pm-4:10 pm

1 stop12h 25m

Cologne Köln/Bonn

Tue 2/24

5:05 pm-3:35 pm

1 stop28h 30m

$527

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 2/11

9:45 pm-4:10 pm

1 stop12h 25m

Cologne Köln/Bonn

Sun 2/22

4:35 pm-7:55 pm

1 stop33h 20m

$552

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Fri 1/23

9:45 pm-4:20 pm

1 stop12h 35m

Cologne Köln/Bonn

Tue 1/27

5:05 pm-3:35 pm

1 stop28h 30m

$569

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 1/22

6:20 pm-3:40 pm

1 stop15h 20m

Cologne Köln/Bonn

Mon 1/26

5:15 pm-3:35 pm

1 stop28h 20m

$569

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 1/8

9:45 pm-3:40 pm

1 stop11h 55m

Cologne Köln/Bonn

Mon 1/12

5:15 pm-3:35 pm

1 stop28h 20m

$571

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Fri 1/9

6:20 pm-4:20 pm

1 stop16h 00m

Cologne Köln/Bonn

Tue 1/13

5:05 pm-3:35 pm

1 stop28h 30m

$571

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 10/29

7:20 pm-4:10 pm

1 stop15h 50m

Cologne Köln/Bonn

Wed 11/12

5:15 pm-3:35 pm

1 stop28h 20m

$577

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 1/29

6:00 pm-4:20 pm

2 stops40h 20m

Cologne Köln/Bonn

Mon 2/2

5:15 pm-3:35 pm

1 stop28h 20m

$582

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Mon 11/17

10:55 pm-5:10 pm

1 stop12h 15m

Cologne Köln/Bonn

Tue 12/2

7:40 pm-8:05 pm

1 stop30h 25m

$586

BaltimoreCologne

BWI - CGN

BWICGN

Baltimore/Washington

Sat 1/10

8:35 pm-3:40 pm

1 stop13h 05m

Cologne Köln/Bonn

Sat 1/17

5:10 pm-6:45 pm

1 stop31h 35m

$604

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 33 results
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Compare providers for flights from Washington, D.C. to Cologne

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Cologne in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Cologne flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Cologne flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Cologne flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Cologne flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Cologne flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Cologne

Have a flexible travel schedule? Discover the best time to fly to Cologne from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Washington, D.C. to Cologne?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Cologne (average of $472). Flying from Washington, D.C. to Cologne in July is currently the most expensive (average of $620). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to CGN?

Find hourly flight availability from Washington, D.C. to Cologne. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 17, 2025.

It’s typically best to fly out from Washington, D.C. to Cologne in the afternoon. Doing so could potentially save you 58% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Washington, D.C. to Cologne?

Reviews of airlines servicing Cologne

Get insights into the airlines that provide service to Cologne. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cologne. Reviews last updated October 17, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Cologne, such as United Airlines, Lufthansa, and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,982 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,982 reviews
United Airlines
7.4
Good
8,982 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Lufthansa
6.8
Okay
7,497 reviews
United Airlines
7.4
Good
8,982 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,457 reviews
United Airlines
7.4
Good
8,982 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Cologne. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Cologne from Washington, D.C.?

    Cologne Köln/Bonn (CGN), located 9.5 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Cologne. 3 airlines have flights to Köln/Bonn from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Cologne Köln/Bonn should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. per day.

  • How long is the flight from Washington, D.C. to Cologne?

    There are many flights that can get you from Washington, D.C. to Cologne in 12h 25m. Fly via British Airways to get the fastest option. Washington, D.C. and Cologne are separated by a distance of 3986 mi.

  • What are the cheapest airlines flying from Washington, D.C. to Cologne round-trip?

    British Airways, at $621, was found to be the cheapest airline from Washington, D.C. to Cologne.Alternate airlines to your destination round-trip include Lufthansa and United Airlines. You may be able to fly from Washington, D.C. to Cologne for 32% less than the average price by searching for these airlines.

  • What are the most popular routes from Washington, D.C. to Cologne?

    While some choose either Washington, D.C. Reagan-National - Cologne Köln/Bonn or Baltimore/Washington - Cologne Köln/Bonn, Washington, D.C. Dulles Intl - Cologne Köln/Bonn is the most popular route from Washington, D.C. to Cologne.

  • Can I find deals for flights from Washington, D.C. to Cologne that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Cologne flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Cologne?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Cologne.

  • Can I find deals for business class flights from Washington, D.C. to Cologne?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Cologne by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Cologne (average of $472). Flying from Washington, D.C. to Cologne in July is currently the most expensive (average of $620). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Washington, D.C. to Cologne

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Washington, D.C. to Cologne

Discover the top 3 airlines that operate flights from Washington, D.C. to Cologne. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$621Average$735FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$678Average$839FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$757Average$1,249FlexibilityNo cancel feeOn-time69%

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