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$669+ 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
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This British Airways deal was found by Cheapflights users on 1/27. 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 3/95:15 pm
CGN
-
DEN
1 stop30h 15m
British Airways
Mon 3/166:25 pm
DEN
-
CGN
1 stop14h 45m
British Airways
Deal found 1/27$669
This Billigflug deal was found by Cheapflights users on 1/28. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:15 pm
CGN
-
DEN
1 stop30h 15m
Multiple Airlines
Mon 3/164:43 pm
DEN
-
CGN
2 stops16h 27m
Multiple Airlines
Deal found 1/28$690
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:55 pm
CGN
-
DEN
1 stop28h 40m
Lufthansa
Mon 3/169:20 pm
DEN
-
CGN
1 stop12h 50m
Lufthansa
Deal found 1/28$724
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Mon 3/99:10 am
CGN
-
DEN
1 stop17h 45m
United Airlines
Mon 3/161:25 pm
DEN
-
CGN
2 stops16h 25m
United Airlines
Deal found 1/28$736
This United Airlines deal was found by Cheapflights users on 1/28. 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 5/141:00 pm
CGN
-
DEN
1 stop33h 20m
United Airlines
Thu 5/281:40 pm
DEN
-
CGN
2 stops20h 00m
United Airlines
Deal found 1/28$749

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$669
(British Airways)

Popular in

July

Cheapest in

May

Average price

$905
Provider with most accurate pricing for Cologne Köln/Bonn-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Cologne Köln/Bonn-Denver Intl flights.
Search Deals
From Cologne Köln/Bonn to Denver Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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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 January 29, 2026.
Use the filters below to find and compare flights from Cologne to Denver that are best for you.

Fly from

Cologne

Fly to

Denver

Route

Depart

Return

Price

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 3/9

5:15 pm-4:30 pm

1 stop30h 15m

Denver Intl

Mon 3/16

6:25 pm-4:10 pm

1 stop14h 45m

$669

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 3/9

5:15 pm-4:30 pm

1 stop30h 15m

Denver Intl

Mon 3/16

4:43 pm-4:10 pm

2 stops16h 27m

$690

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 3/9

5:55 pm-3:35 pm

1 stop28h 40m

Denver Intl

Mon 3/16

9:20 pm-5:10 pm

1 stop12h 50m

$724

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 3/9

9:10 am-7:55 pm

1 stop17h 45m

Denver Intl

Mon 3/16

1:25 pm-12:50 pm

2 stops16h 25m

$736

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Thu 5/14

1:00 pm-2:20 pm

1 stop33h 20m

Denver Intl

Thu 5/28

1:40 pm-5:40 pm

2 stops20h 00m

$749

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

  • 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 $528). Flying from Cologne to Denver in July is currently the most expensive (average of $696). 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 30h 15m. British Airways provides one of the quickest options available for as low as $669. 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 $528). Flying from Cologne to Denver in July is currently the most expensive (average of $696). 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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