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Cologne

$688+ Cheap flights from Denver (DEN) to Cologne (CGN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — CGN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Denver to Cologne

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 June 12, 2025.

Round-trip from

$688
(British Airways)

Popular in

January

Cheapest in

March
From Denver Intl to Cologne Köln/Bonn
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Highest demand for flights based on searches. 31% potential increase in price ($592 potential increase over avg. RT price).
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Cheapest flight prices on average. 15% potential price decrease ($180 potential savings vs. average RT price).
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Find flight deals from Denver to Cologne

Cheapest flights from Denver to Cologne
Explore the most affordable flight options available from Denver to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This British Airways deal was found by Cheapflights users on 6/10. 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.
Mon 9/1512:41 pmDEN - CGN
2 stops17h 39mBritish Airways
Sun 9/219:35 pmCGN - DEN
1 stop26h 50mBritish Airways
Deal found 6/10$688
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:35 pmDEN - CGN
1 stop17h 55mAmerican Airlines
Sun 9/2110:15 amCGN - DEN
2 stops20h 53mAmerican Airlines
Deal found 6/11$692
This oojo deal was found by Cheapflights users on 6/10. 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.
Fri 7/257:50 pmDEN - CGN
1 stop29h 40mTurkish Airlines
Fri 8/17:10 pmCGN - DEN
1 stop30h 45mTurkish Airlines
Deal found 6/10$1,136
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Mon 7/144:40 pmDEN - CGN
2 stops21h 10mMultiple Airlines
Sat 7/198:40 amCGN - DEN
2 stops18h 15mMultiple Airlines
Deal found 6/11$1,187
This Ovago deal was found by Cheapflights users on 6/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/144:15 pmDEN - CGN
1 stop12h 00mLufthansa
Sat 7/198:40 amCGN - DEN
1 stop17h 55mLufthansa
Deal found 6/11$2,901

Cheapflights Fare Finder

Customize your flight search to find flights from Denver 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 June 12, 2025.
Use the filters below to find and compare flights from Denver to Cologne that are best for you.

Fly from

Denver

Fly to

Cologne

Route

Depart

Return

Price

DenverCologne

DEN - CGN

DENCGN

Denver Intl

Mon 9/15

12:41 pm-2:20 pm

2 stops17h 39m

Cologne Köln/Bonn

Sun 9/21

9:35 pm-4:25 pm

1 stop26h 50m

$688

DenverCologne

DEN - CGN

DENCGN

Denver Intl

Mon 9/15

6:35 pm-8:30 pm

1 stop17h 55m

Cologne Köln/Bonn

Sun 9/21

10:15 am-11:08 pm

2 stops20h 53m

$692

DenverCologne

DEN - CGN

DENCGN

Denver Intl

Fri 7/25

7:50 pm-9:30 am

1 stop29h 40m

Cologne Köln/Bonn

Fri 8/1

7:10 pm-5:55 pm

1 stop30h 45m

$1,136

DenverCologne

DEN - CGN

DENCGN

Denver Intl

Mon 7/14

4:40 pm-9:50 pm

2 stops21h 10m

Cologne Köln/Bonn

Sat 7/19

8:40 am-6:55 pm

2 stops18h 15m

$1,187

DenverCologne

DEN - CGN

DENCGN

Denver Intl

Mon 7/14

4:15 pm-12:15 pm

1 stop12h 00m

Cologne Köln/Bonn

Sat 7/19

8:40 am-6:35 pm

1 stop17h 55m

$2,901

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Denver to Cologne

Have a flexible travel schedule? Discover the best time to fly to Cologne from Denver 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 Denver to Cologne

What is the cheapest month to book a flight from Denver to Cologne?

Currently, October is the cheapest month in which you can book a flight from Denver to Cologne (average of $649). Flying from Denver to Cologne in June is currently the most expensive (average of $1,307). 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 June 12, 2025.
Turkish Airlines
7.3
Good
3,848 reviews

Boarding

7.3

Food

7.3

Crew

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.4

Reviews

1 / 20
2.0
Mediocre

Luoai,May 2025

SFO - IST

I had the worst experience with Turkish airline I started when I got to the counter late but an hour before the flight going to San Francisco they wouldn’t let me check in but it’s ok I understand but for you to cancel my ticket and not Ofer my any kind of refund I had to buy another one way to San Francisco only to figure out that even the return ticket is cancelled so I had to buy another ticket going back it was my mistake for using them it’s my last time I used them twice a year for the same trip and I did not find the treatment of a loyal customer the original ticket they canceled was $1488 and I bought one was from Istanbul for $1025 and returned for $711 + $330 for two bags so I lost more then $2000 in the stupid trip and they lost me as a customer
Turkish Airlines
7.3
Good
3,848 reviews
Turkish Airlines
7.3
Good
3,848 reviews

Boarding

7.3

Food

7.3

Crew

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.4

Reviews

1 / 20
2.0
Mediocre

Luoai,May 2025

SFO - IST

I had the worst experience with Turkish airline I started when I got to the counter late but an hour before the flight going to San Francisco they wouldn’t let me check in but it’s ok I understand but for you to cancel my ticket and not Ofer my any kind of refund I had to buy another one way to San Francisco only to figure out that even the return ticket is cancelled so I had to buy another ticket going back it was my mistake for using them it’s my last time I used them twice a year for the same trip and I did not find the treatment of a loyal customer the original ticket they canceled was $1488 and I bought one was from Istanbul for $1025 and returned for $711 + $330 for two bags so I lost more then $2000 in the stupid trip and they lost me as a customer
American Airlines
7.2
Good
10,000 reviews
Turkish Airlines
7.3
Good
3,848 reviews

Boarding

7.3

Food

7.3

Crew

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.4

Reviews

1 / 20
2.0
Mediocre

Luoai,May 2025

SFO - IST

I had the worst experience with Turkish airline I started when I got to the counter late but an hour before the flight going to San Francisco they wouldn’t let me check in but it’s ok I understand but for you to cancel my ticket and not Ofer my any kind of refund I had to buy another one way to San Francisco only to figure out that even the return ticket is cancelled so I had to buy another ticket going back it was my mistake for using them it’s my last time I used them twice a year for the same trip and I did not find the treatment of a loyal customer the original ticket they canceled was $1488 and I bought one was from Istanbul for $1025 and returned for $711 + $330 for two bags so I lost more then $2000 in the stupid trip and they lost me as a customer
Lufthansa
6.8
Okay
7,136 reviews
Turkish Airlines
7.3
Good
3,848 reviews

Boarding

7.3

Food

7.3

Crew

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.4

Reviews

1 / 20
2.0
Mediocre

Luoai,May 2025

SFO - IST

I had the worst experience with Turkish airline I started when I got to the counter late but an hour before the flight going to San Francisco they wouldn’t let me check in but it’s ok I understand but for you to cancel my ticket and not Ofer my any kind of refund I had to buy another one way to San Francisco only to figure out that even the return ticket is cancelled so I had to buy another ticket going back it was my mistake for using them it’s my last time I used them twice a year for the same trip and I did not find the treatment of a loyal customer the original ticket they canceled was $1488 and I bought one was from Istanbul for $1025 and returned for $711 + $330 for two bags so I lost more then $2000 in the stupid trip and they lost me as a customer
British Airways
6.6
Okay
7,008 reviews
Turkish Airlines
7.3
Good
3,848 reviews

Boarding

7.3

Food

7.3

Crew

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.4

Reviews

1 / 20
2.0
Mediocre

Luoai,May 2025

SFO - IST

I had the worst experience with Turkish airline I started when I got to the counter late but an hour before the flight going to San Francisco they wouldn’t let me check in but it’s ok I understand but for you to cancel my ticket and not Ofer my any kind of refund I had to buy another one way to San Francisco only to figure out that even the return ticket is cancelled so I had to buy another ticket going back it was my mistake for using them it’s my last time I used them twice a year for the same trip and I did not find the treatment of a loyal customer the original ticket they canceled was $1488 and I bought one was from Istanbul for $1025 and returned for $711 + $330 for two bags so I lost more then $2000 in the stupid trip and they lost me as a customer

Related info for your journey

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

  • What are the cheapest airlines flying from Denver to Cologne round-trip?

    Our cheapest airline available from Denver to Cologne is British Airways. Our recent data shows that you can find tickets from as low as $688 on this airline. Additional options worth looking into are American Airlines and Turkish Airlines, starting at $692 and $1,136 round-trip. British Airways is currently priced 47% below the average price you’ll pay for this route.

  • Can I find deals for flights from Denver to Cologne that include hotel bookings?

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

  • How can I find direct flights from Denver to Cologne?

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

  • Can I find deals for business class flights from Denver to Cologne?

    Yes. Cheapflights offers flight deals from Denver 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 Denver to Cologne?

    Currently, October is the cheapest month in which you can book a flight from Denver to Cologne (average of $649). Flying from Denver to Cologne in June is currently the most expensive (average of $1,307). 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.

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Top airline flying from Denver to Cologne

Discover the top airline that operate flights from Denver 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$823Average$1,346FlexibilityNo cancel feeOn-time76%

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