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$418+ Cheap flights from Cologne (CGN) to Denver (DEN)

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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — DEN
Apr 30 — May 71
Thu 4/30
Thu 5/7
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 March 31, 2026.

This Expedia deal was found by Cheapflights users on 3/29. 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.
Tue 10/276:00 pm
CGN
-
DEN
1 stop32h 55m
Lufthansa
Thu 11/124:20 pm
DEN
-
CGN
1 stop12h 15m
Lufthansa
Deal found 3/29$793
This Cheapflightsfares deal was found by Cheapflights users on 3/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:30 am
CGN
-
DEN
1 stop13h 50m
Lufthansa
Thu 7/24:15 pm
DEN
-
CGN
1 stop12h 10m
Lufthansa
Deal found 3/29$794
This Cheapflightsfares deal was found by Cheapflights users on 3/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:30 am
CGN
-
DEN
1 stop13h 50m
Lufthansa
Tue 8/254:45 pm
DEN
-
CGN
2 stops18h 45m
Lufthansa
Deal found 3/29$798
This Sembo deal was found by Cheapflights users on 3/30. 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.
Fri 5/11:05 pm
CGN
-
DEN
2 stops17h 14m
Multiple Airlines
Sat 5/236:10 pm
DEN
-
CGN
2 stops39h 10m
Multiple Airlines
Deal found 3/30$813
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 6/231:05 pm
CGN
-
DEN
1 stop13h 45m
United Airlines
Mon 8/174:15 pm
DEN
-
CGN
1 stop12h 10m
United Airlines
Deal found 3/31$814
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Tue 10/271:35 pm
CGN
-
DEN
1 stop13h 20m
United Airlines
Thu 11/123:55 pm
DEN
-
CGN
2 stops17h 20m
United Airlines
Deal found 3/29$816
This United Airlines deal was found by Cheapflights users on 3/28. 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.
Thu 4/91:05 pm
CGN
-
DEN
1 stop13h 45m
United Airlines
Thu 4/168:25 pm
DEN
-
CGN
1 stop13h 15m
United Airlines
Deal found 3/28$817
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 6/231:05 pm
CGN
-
DEN
1 stop13h 45m
United Airlines
Sat 8/157:05 pm
DEN
-
CGN
2 stops33h 20m
United Airlines
Deal found 3/31$820
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Sat 10/248:30 am
CGN
-
DEN
2 stops21h 01m
United Airlines
Fri 11/138:20 pm
DEN
-
CGN
1 stop12h 55m
United Airlines
Deal found 3/29$822
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Thu 12/311:35 pm
CGN
-
DEN
1 stop33h 00m
United Airlines
Mon 1/119:35 am
DEN
-
CGN
2 stops19h 15m
United Airlines
Deal found 3/29$827

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 March 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$794
(Cheapflightsfares)

One-way from

$418
(Kiwi.com)
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
Search Deals
One-way flight from Cologne Köln/Bonn to Denver Intl
Search Deals

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 March 31, 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

Cheapest round-trip

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Tue 6/2

1:05 pm-11:28 pm

2 stops18h 23m

Denver Intl

Thu 7/2

1:25 pm-12:25 pm

2 stops15h 00m

$822

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Sun 5/3

8:30 am-12:44 am

2 stops24h 14m

Denver Intl

Sun 5/10

4:05 pm-7:30 pm

1 stop19h 25m

$827

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Sun 5/3

8:30 am-12:44 am

2 stops24h 14m

Denver Intl

Sun 5/10

8:25 pm-7:30 pm

1 stop15h 05m

$852

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Tue 6/23

1:05 pm-6:50 pm

1 stop13h 45m

Denver Intl

Tue 8/18

8:45 am-5:20 pm

2 stops24h 35m

$860

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Sat 4/25

1:05 pm-12:44 am

2 stops19h 39m

Denver Intl

Sat 5/2

8:25 pm-7:30 pm

1 stop15h 05m

$869
Quickest round-trip

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Tue 6/23

1:05 pm-6:50 pm

1 stop13h 45m

Denver Intl

Fri 8/14

4:15 pm-12:25 pm

1 stop12h 10m

$952

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Sat 5/2

8:30 am-5:45 pm

2 stops17h 15m

Denver Intl

Sat 5/23

8:25 pm-7:30 pm

1 stop15h 05m

$958

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Wed 5/13

8:30 am-2:20 pm

1 stop13h 50m

Denver Intl

Wed 5/20

4:05 pm-12:25 pm

1 stop12h 20m

$976

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Fri 5/1

1:05 pm-10:34 am

2 stops29h 29m

Denver Intl

Fri 5/22

6:10 pm-7:30 pm

2 stops41h 20m

$1,003

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Wed 6/24

8:30 am-2:20 pm

1 stop13h 50m

Denver Intl

Fri 8/14

4:15 pm-12:25 pm

1 stop12h 10m

$1,018

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 14 resultsSorted by cheapest first
1
2
  • 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, October is the cheapest month in which you can book a flight from Cologne to Denver (average of $560). 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 13h 45m. United Airlines provides one of the quickest options available for as low as $814. There are 4937 mi between Cologne and Denver. This flight may include one or multiple stops.

  • 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, October is the cheapest month in which you can book a flight from Cologne to Denver (average of $560). 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
Westminster
Broomfield
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Fort Morgan
Glendale
Brighton

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