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

Lufthansa, at $584, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Cologne.Alternate airlines to your destination round-trip include British Airways and United Airlines. Lufthansa is currently priced 24% below the average price you’ll pay for this route.

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

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Cologne flight should consider departing on Friday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Cologne ranges from 2.0 - 3.5 inches per month. June is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Cologne when rainfall is around 2.0 in.

If weather is an important factor for your trip to Cologne, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Cologne?

The most popular airlines flying from Washington, D.C. Dulles Intl Airport to Cologne are British Airways, Lufthansa and United Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Cologne?

Flying to your destination on a Wednesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Cologne. Check prices with Cheapflights to find a great deal for your trip.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Cologne. Flights to Cologne from Washington, D.C. Dulles Intl Airport in February are about $881 on average during February, but can be found for as low as $491.

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

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Cologne in the morning. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight at noon.

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

For a flight from Washington, D.C. Dulles Intl to Cologne, you will be flying into Köln/Bonn. Cologne Köln/Bonn (CGN) is just 9.5 mi from the center of the city. Köln/Bonn is the only Cologne airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 3 airlines have flights to Cologne Köln/Bonn from Washington, D.C. Dulles Intl on a regular basis.

Can I find deals for flights from Dulles Intl to Cologne that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Cologne flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Cologne?

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

Can I find deals for business class flights from Dulles Intl to Cologne?

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$275+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Cologne

Q: How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Cologne?

Airfare is below average for this route at the moment. Washington, D.C. Dulles Intl Airport to Cologne flights typically cost between $776 and $878 in October. The cheapest round-trip price found within the last 3 days was $587 on British Airways (Oct 26-Nov 2).

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Cheap flight deals from Dulles Intl to Cologne

Round-trip from	$587 (Ovago)
One-way from	$275 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$801

From Washington, D.C. Dulles Intl to Cologne Köln/Bonn

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One-way flight from Washington, D.C. Dulles Intl to Cologne Köln/Bonn

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High demand for flights, 2% potential price rise

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Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Dulles Intl to Cologne

Cheapest flights from Dulles Intl to Cologne
Explore the most affordable flight options available from Dulles Intl to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Sun 10/267:20 pmIAD - CGN

1 stop16h 10mBritish Airways

Sun 11/24:35 pmCGN - IAD

1 stop33h 20mBritish Airways

Deal found 8/14

$587

Wed 9/37:21 pmIAD - CGN

2 stops19h 39mBritish Airways

Tue 9/239:15 pmCGN - IAD

2 stops23h 45mBritish Airways

Deal found 8/14

$616

Thu 9/115:26 pmIAD - CGN

2 stops14h 09mBritish Airways

Mon 9/229:15 pmCGN - IAD

2 stops27h 36mBritish Airways

Deal found 8/14

$632

Wed 8/134:35 pmIAD - CGN

2 stops22h 25mBritish Airways

Mon 8/189:15 pmCGN - IAD

2 stops27h 37mBritish Airways

Deal found 8/13

$643

Thu 9/251:53 pmIAD - CGN

2 stops17h 42mBritish Airways

Mon 9/299:15 pmCGN - IAD

2 stops27h 36mBritish Airways

Deal found 8/14

$662

Thu 9/111:30 pmIAD - CGN

1 stop18h 20mTurkish Airlines

Thu 9/252:50 pmCGN - IAD

1 stop26h 55mTurkish Airlines

Deal found 8/13

$676

Best flights from Dulles Intl to Cologne
Discover carefully curated flight deals from Dulles Intl to Cologne that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Sun 10/267:20 pmIAD - CGN

1 stop16h 10mBritish Airways

Sun 11/24:35 pmCGN - IAD

1 stop33h 20mBritish Airways

Deal found 8/14

$587

Wed 10/15:50 pmIAD - CGN

2 stops22h 15mMultiple Airlines

Thu 10/912:15 pmCGN - IAD

2 stops33h 05mMultiple Airlines

Deal found 8/14

$671

Thu 9/111:30 pmIAD - CGN

1 stop18h 20mTurkish Airlines

Thu 9/252:50 pmCGN - IAD

1 stop26h 55mTurkish Airlines

Deal found 8/13

$676

Wed 9/37:21 pmIAD - CGN

2 stops19h 39mBritish Airways

Tue 9/239:15 pmCGN - IAD

2 stops23h 45mBritish Airways

Deal found 8/14

$616

Thu 9/115:26 pmIAD - CGN

2 stops14h 09mBritish Airways

Mon 9/229:15 pmCGN - IAD

2 stops27h 36mBritish Airways

Deal found 8/14

$632

Thu 9/251:53 pmIAD - CGN

2 stops17h 42mBritish Airways

Mon 9/299:15 pmCGN - IAD

2 stops27h 36mBritish Airways

Deal found 8/14

$662

Last-minute flights from Dulles Intl to Cologne
Discover last-minute flight deals from Dulles Intl to Cologne. Data last updated August 14, 2025 and is based on user searches.

Wed 8/206:35 pmIAD - CGN

1 stop10h 35mMultiple Airlines

Mon 9/16:20 amCGN - IAD

2 stops14h 05mMultiple Airlines

Deal found 8/14

$4,125

Wed 9/37:21 pmIAD - CGN

2 stops19h 39mBritish Airways

Tue 9/239:15 pmCGN - IAD

2 stops23h 45mBritish Airways

Deal found 8/14

$616

Wed 9/31:30 pmIAD - CGN

1 stop22h 40mTurkish Airlines

Thu 9/187:10 pmCGN - IAD

1 stop22h 35mTurkish Airlines

Deal found 8/13

$692

Tue 9/99:40 pmIAD - CGN

1 stop14h 30mTurkish Airlines

Thu 9/257:10 pmCGN - IAD

1 stop22h 35mTurkish Airlines

Deal found 8/13

$700

Thu 9/115:26 pmIAD - CGN

2 stops14h 09mBritish Airways

Mon 9/229:15 pmCGN - IAD

2 stops27h 36mBritish Airways

Deal found 8/14

$632

Thu 9/111:30 pmIAD - CGN

1 stop18h 20mTurkish Airlines

Thu 9/252:50 pmCGN - IAD

1 stop26h 55mTurkish Airlines

Deal found 8/13

$676

Thu 9/111:30 pmIAD - CGN

1 stop18h 20mTurkish Airlines

Mon 9/227:10 pmCGN - IAD

1 stop22h 35mTurkish Airlines

Deal found 8/14

$702

Thu 9/251:53 pmIAD - CGN

2 stops17h 42mBritish Airways

Mon 9/299:15 pmCGN - IAD

2 stops27h 36mBritish Airways

Deal found 8/14

$662

Thu 9/251:30 pmIAD - CGN

1 stop22h 40mTurkish Airlines

Mon 9/297:10 pmCGN - IAD

1 stop22h 35mTurkish Airlines

Deal found 8/13

$686

One-way flights from Dulles Intl to Cologne
Search for one-way flight options from Dulles Intl to Cologne. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Wed 10/85:50 pmIAD - CGN

2 stops22h 15mMultiple Airlines

Deal found 8/13

$275

Sun 8/2410:20 pmIAD - CGN

3 stops52h 40mMultiple Airlines

Deal found 8/14

$391

Sun 8/245:20 pmIAD - CGN

2 stops21h 05mBritish Airways

Deal found 8/14

$430

Sun 8/2410:20 pmIAD - CGN

1 stop15h 00mLufthansa

Deal found 8/14

$453

Mon 10/1310:25 pmIAD - CGN

2 stops12h 55mSWISS

Deal found 8/14

$567

Wed 8/279:40 pmIAD - CGN

1 stop14h 30mTurkish Airlines

Deal found 8/13

$693

Wed 8/209:40 pmIAD - CGN

1 stop14h 30mTurkish Airlines

Deal found 8/13

$884

Tue 8/199:40 pmIAD - CGN

1 stop14h 30mTurkish Airlines

Deal found 8/13

$1,013

Sun 8/3111:55 amIAD - CGN

3 stops47h 25mMultiple Airlines

Deal found 8/14

$1,223

Sun 8/315:55 pmIAD - CGN

1 stop20h 30mBritish Airways

Deal found 8/14

$1,522

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Cologne that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Sun 10/26

7:20 pm-4:30 pm

1 stop16h 10m

Cologne Köln/Bonn

Sun 11/2

4:35 pm-7:55 pm

1 stop33h 20m

$587

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 9/3

7:21 pm-9:00 pm

2 stops19h 39m

Cologne Köln/Bonn

Tue 9/23

9:15 pm-3:00 pm

2 stops23h 45m

$616

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 9/11

5:26 pm-1:35 pm

2 stops14h 09m

Cologne Köln/Bonn

Mon 9/22

9:15 pm-6:51 pm

2 stops27h 36m

$632

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 9/25

1:53 pm-1:35 pm

2 stops17h 42m

Cologne Köln/Bonn

Mon 9/29

9:15 pm-6:51 pm

2 stops27h 36m

$662

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 10/1

5:50 pm-10:05 pm

2 stops22h 15m

Cologne Köln/Bonn

Thu 10/9

12:15 pm-3:20 pm

2 stops33h 05m

$671

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 9/11

1:30 pm-1:50 pm

1 stop18h 20m

Cologne Köln/Bonn

Thu 9/25

2:50 pm-11:45 am

1 stop26h 55m

$676

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 10/8

5:50 pm-10:05 pm

2 stops22h 15m

$275

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Sun 8/24

10:20 pm-9:00 am

3 stops52h 40m

$391

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Sun 8/24

5:20 pm-8:25 pm

2 stops21h 05m

$430

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Sun 8/24

10:20 pm-7:20 pm

1 stop15h 00m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 16 results

Best time to book a flight from Dulles Intl to Cologne

Have a flexible travel schedule? Discover the best time to fly to Cologne from Dulles Intl 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. Dulles Intl Airport to Cologne

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cologne (average of $649). Flying from Washington, D.C. Dulles Intl Airport to Cologne in June is currently the most expensive (average of $1,252). 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.

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

Reviews of airlines servicing Cologne

Read reviews from past customers who have flown United Airlines, Lufthansa, and British Airways from Washington, D.C. Dulles Intl Airport to Cologne. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,916 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Lufthansa

6.8

Okay

7,317 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

British Airways

6.7

Okay

7,266 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What airport do you fly into for flights to Cologne from Washington, D.C. Dulles Intl?
For a flight from Washington, D.C. Dulles Intl to Cologne, you will be flying into Köln/Bonn. Cologne Köln/Bonn (CGN) is just 9.5 mi from the center of the city. Köln/Bonn is the only Cologne airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 3 airlines have flights to Cologne Köln/Bonn from Washington, D.C. Dulles Intl on a regular basis.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Cologne round-trip?
Lufthansa, at $584, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Cologne.Alternate airlines to your destination round-trip include British Airways and United Airlines. Lufthansa is currently priced 24% below the average price you’ll pay for this route.
Can I find deals for flights from Dulles Intl to Cologne that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Cologne flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Cologne?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Cologne.
Can I find deals for business class flights from Dulles Intl to Cologne?
Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Cologne?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cologne (average of $649). Flying from Washington, D.C. Dulles Intl Airport to Cologne in June is currently the most expensive (average of $1,252). 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

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Dulles Intl to Cologne

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$584	Average$806	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$621	Average$735	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$757	Average$1,249	FlexibilityNo cancel fee	On-time69%

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$275+ Cheap flights from Dulles Intl (IAD) 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Dulles Intl to CologneExplore the most affordable flight options available from Dulles Intl to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Dulles Intl to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Cologne that are best for you.

Best time to book a flight from Dulles Intl to Cologne

Have a flexible travel schedule? Discover the best time to fly to Cologne from Dulles Intl with our price prediction graph.

Cheapflights Insights

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

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

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

Reviews of airlines servicing Cologne

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

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

Can I find deals for flights from Dulles Intl to Cologne that include hotel bookings?

How can I find direct flights from Dulles Intl to Cologne?

Can I find deals for business class flights from Dulles Intl to Cologne?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dulles Intl to Cologne

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Top 3 airlines flying from Dulles Intl to Cologne

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Cheapest flights from Dulles Intl to Cologne
Explore the most affordable flight options available from Dulles Intl to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.