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Cologne

$405+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CGN
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Dulles Intl to Cologne

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$586
(British Airways)

One-way from

$405
(Trip.com)

Popular in

November

Cheapest in

December

Average price

$718
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Cologne Köln/Bonn flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Cologne Köln/Bonn flights.
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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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Highest demand for flights based on searches. 4% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Expedia deal was found by Cheapflights users on 2/20. 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.
Mon 3/107:00 pmIAD - CGN
1 stop11h 05mBritish Airways
Mon 3/177:20 pmCGN - IAD
1 stop26h 15mBritish Airways
Deal found 2/20$586
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/308:30 pmIAD - CGN
2 stops18h 30mMultiple Airlines
Thu 4/36:30 amCGN - IAD
2 stops18h 50mMultiple Airlines
Deal found 2/20$617
This oojo deal was found by Cheapflights users on 2/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/812:30 pmIAD - CGN
1 stop23h 40mTurkish Airlines
Thu 5/152:50 pmCGN - IAD
1 stop25h 55mTurkish Airlines
Deal found 2/20$665
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Sun 10/2611:20 pmIAD - CGN
1 stop12h 50mLufthansa
Sun 11/21:25 pmCGN - IAD
1 stop12h 40mLufthansa
Deal found 2/20$676
This SmartFares deal was found by Cheapflights users on 2/20. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/72:15 pmIAD - CGN
2 stops14h 55mAir Canada
Wed 5/287:40 amCGN - IAD
2 stops19h 28mAir Canada
Deal found 2/20$683
This United deal was found by Cheapflights users on 2/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:25 pmIAD - CGN
2 stops12h 20mUnited Airlines
Sun 11/29:10 amCGN - IAD
2 stops13h 20mUnited Airlines
Deal found 2/20$696
This Austrian Airlines deal was found by Cheapflights users on 2/20. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/255:25 pmIAD - CGN
1 stop20h 15mAustrian Airlines
Mon 6/28:25 pmCGN - IAD
1 stop24h 10mAustrian Airlines
Deal found 2/20$808
This Egyptair deal was found by Cheapflights users on 2/20. 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 Egyptair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2512:00 pmIAD - CGN
3 stops31h 25mEgyptair
Mon 3/3112:55 pmCGN - IAD
2 stops22h 15mEgyptair
Deal found 2/20$1,613
This TAP AIR PORTUGAL deal was found by Cheapflights users on 2/20. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/136:30 pmIAD - CGN
2 stops19h 55mTAP AIR PORTUGAL
Sat 3/229:10 amCGN - IAD
3 stops27h 07mTAP AIR PORTUGAL
Deal found 2/20$1,869

Find flights from Dulles Intl to Cologne within your budget

Customize your flight search to find flights from Dulles Intl 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 February 20, 2025.

Fly from

Dulles Intl

Fly to

Cologne

Route

Depart

Return

Price

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Mon 3/10

7:00 pm-11:05 am

1 stop11h 05m

Cologne Köln/Bonn

Mon 3/17

7:20 pm-4:35 pm

1 stop26h 15m

$586

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Sun 3/30

8:30 pm-9:00 pm

2 stops18h 30m

Cologne Köln/Bonn

Thu 4/3

6:30 am-7:20 pm

2 stops18h 50m

$617

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 3/25

2:45 pm-12:05 pm

2 stops16h 20m

Cologne Köln/Bonn

Mon 3/31

6:35 pm-3:13 pm

2 stops26h 38m

$620

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 5/8

12:30 pm-6:10 pm

1 stop23h 40m

Cologne Köln/Bonn

Thu 5/15

2:50 pm-10:45 am

1 stop25h 55m

$665

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Wed 4/16

2:40 pm-12:15 pm

2 stops15h 35m

Cologne Köln/Bonn

Tue 4/22

12:55 pm-3:00 pm

1 stop32h 05m

$712

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Mon 7/7

10:20 pm-5:10 pm

1 stop12h 50m

Cologne Köln/Bonn

Wed 7/16

12:55 pm-7:25 pm

1 stop12h 30m

$802

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Sun 5/25

5:25 pm-7:40 pm

1 stop20h 15m

Cologne Köln/Bonn

Mon 6/2

8:25 pm-2:35 pm

1 stop24h 10m

$808

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Tue 3/25

12:00 pm-12:25 am

3 stops31h 25m

Cologne Köln/Bonn

Mon 3/31

12:55 pm-5:10 am

2 stops22h 15m

$1,613

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 3/13

6:30 pm-7:25 pm

2 stops19h 55m

Cologne Köln/Bonn

Sat 3/22

9:10 am-7:17 am

3 stops27h 07m

$1,869

Washington, D.C.Cologne

IAD - CGN

IADCGN

Washington, D.C. Dulles Intl

Thu 2/27

5:30 pm-9:35 am

1 stop10h 05m

$1,143

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Compare providers for flights from Dulles Intl 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 Dulles Intl to Cologne in February.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice 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. Dulles Intl Airport-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. Dulles Intl Airport-Cologne flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Cologne flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-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 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.

Travel insights for flights from Dulles Intl to Cologne

Get recent, data-driven insights about flights from Dulles Intl to Cologne including ideal travel times, pricing trends, and more.

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 $1,497). 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.

Rainfall in Cologne by month

Plan your trip to Cologne by taking into account the average rainfall totals by month.

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.

Temperature in Cologne by month

Plan your trip to Cologne by taking into account the average temperature totals by month.

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).

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 February 20, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Cologne, such as Austrian Airlines, SWISS and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Austrian Airlines
7.6
Good
773 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

SWISS
7.5
Good
1,568 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

United Airlines
7.4
Good
8,766 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Turkish Airlines
7.3
Good
3,832 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

American Airlines
7.2
Good
10,000 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

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?

    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. 1 airline has 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?

    British Airways, at $586, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Cologne.Alternate airlines to your destination round-trip include American Airlines and Air Canada. British Airways is currently priced 34% 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 $1,497). 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 Dulles Intl to Cologne

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Dulles Intl to Cologne

Discover the top airline that operate flights from Dulles Intl 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$584Average$777FlexibilityNo cancel feeOn-time76%
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