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$728+ Cheap flights from Cologne (CGN) to Denver (DEN)

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — DEN
Mar 28 — Apr 41
Sat 3/28
Sat 4/4
1 adult, Economy
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Cheap flight deals from Cologne to Denver

Cheapest flights from Cologne to Denver
Explore the most affordable flight options available from Cologne to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2026.

This United Airlines deal was found by Cheapflights users on 2/23. 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.
Mon 3/99:10 am
CGN
-
DEN
1 stop17h 45m
United Airlines
Mon 3/1612:33 pm
DEN
-
CGN
2 stops17h 17m
United Airlines
Deal found 2/23$728
This Flysmarter deal was found by Cheapflights users on 2/23. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:30 am
CGN
-
DEN
1 stop13h 15m
Lufthansa
Sat 10/34:05 pm
DEN
-
CGN
1 stop12h 20m
Lufthansa
Deal found 2/23$734
This Expedia deal was found by Cheapflights users on 2/23. 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.
Fri 9/258:10 pm
CGN
-
DEN
1 stop25h 35m
Multiple Airlines
Sat 10/38:20 pm
DEN
-
CGN
2 stops52h 30m
Multiple Airlines
Deal found 2/23$747
This Sembo deal was found by Cheapflights users on 2/23. 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.
Thu 3/58:40 am
CGN
-
DEN
2 stops19h 15m
Multiple Airlines
Wed 3/1111:22 am
DEN
-
CGN
2 stops18h 28m
Multiple Airlines
Deal found 2/23$762
This Sembo deal was found by Cheapflights users on 2/23. 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.
Thu 3/59:10 am
CGN
-
DEN
1 stop17h 45m
Lufthansa
Wed 3/1111:22 am
DEN
-
CGN
2 stops18h 28m
Lufthansa
Deal found 2/23$774
This Booking.com deal was found by Cheapflights users on 2/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:05 pm
CGN
-
DEN
2 stops29h 17m
Air Canada
Sat 10/36:10 pm
DEN
-
CGN
2 stops34h 15m
Air Canada
Deal found 2/23$810
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Mon 9/71:05 pm
CGN
-
DEN
1 stop13h 45m
United Airlines
Fri 9/254:15 pm
DEN
-
CGN
1 stop17h 25m
United Airlines
Deal found 2/22$830
This Billigflug deal was found by Cheapflights users on 2/24. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/61:05 pm
CGN
-
DEN
2 stops18h 05m
Multiple Airlines
Fri 6/125:45 pm
DEN
-
CGN
2 stops15h 55m
Multiple Airlines
Deal found 2/24$902

Find flight deals from Cologne to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Cologne (CGN) to Denver (DEN). 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 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$728
(United Airlines)
Provider with most accurate pricing for Cologne Köln/Bonn-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cologne Köln/Bonn-Denver Intl flights.
Search Deals
From Cologne Köln/Bonn to Denver Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Cologne to Denver 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 26, 2026.
Use the filters below to find and compare flights from Cologne to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 3/9

9:10 am-7:55 pm

1 stop17h 45m

Denver Intl

Mon 3/16

12:33 pm-12:50 pm

2 stops17h 17m

$728

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Sat 6/6

8:30 am-6:50 pm

1 stop18h 20m

Denver Intl

Fri 6/12

5:45 pm-5:40 pm

2 stops15h 55m

$928

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Sun 6/7

1:05 pm-10:34 am

2 stops29h 29m

Denver Intl

Fri 6/12

6:10 pm-5:20 pm

2 stops39h 10m

$1,089

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 3/9

4:00 pm-7:55 pm

3 stops34h 55m

Denver Intl

Mon 3/16

11:15 am-5:10 pm

3 stops22h 55m

$1,451

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Wed 5/6

6:20 am-7:40 pm

2 stops21h 20m

Denver Intl

Wed 5/20

9:55 am-12:25 pm

2 stops18h 30m

$1,881

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Wed 5/6

7:00 am-2:20 pm

1 stop15h 20m

Denver Intl

Wed 5/20

11:25 am-12:25 pm

2 stops17h 00m

$1,947

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Wed 5/6

1:05 pm-11:10 pm

2 stops18h 05m

Denver Intl

Wed 5/20

11:25 am-12:25 pm

2 stops17h 00m

$2,397

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Wed 5/6

8:30 am-2:20 pm

1 stop13h 50m

Denver Intl

Wed 5/20

10:14 am-9:55 am

2 stops15h 41m

$2,430

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 5/4

6:05 pm-1:35 pm

2 stops27h 30m

$899

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 5/4

2:50 pm-6:25 pm

1 stop35h 35m

$1,031

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Cologne-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cologne-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cologne-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cologne-Denver 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 Cologne-Denver 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 Cologne to Denver

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

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

Currently, March is the cheapest month in which you can book a flight from Cologne to Denver (average of $547). Flying from Cologne to Denver in July is currently the most expensive (average of $815). 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.

Related info for your journey

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

  • How long is the flight from Cologne to Denver?

    A quick flight from Cologne to Denver can take about 17h 45m. United Airlines provides one of the quickest options available for as low as $728. There are 4937 mi between Cologne and Denver.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Cologne to Denver (average of $547). Flying from Cologne to Denver in July is currently the most expensive (average of $815). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Cripple Creek
Winter Park
Central City
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen

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