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$639+ 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — DEN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$639
(British Airways)

Popular in

December

Cheapest in

October

Average price

$907
From Cologne Köln/Bonn to Denver Intl
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($265 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 15, 2025.

This British Airways deal was found by Cheapflights users on 9/13. 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.
Sat 11/15:10 pmCGN - DEN
1 stop30h 20mBritish Airways
Sat 11/810:23 amDEN - CGN
2 stops21h 17mBritish Airways
Deal found 9/13$639
This British Airways deal was found by Cheapflights users on 9/14. 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 10/209:15 pmCGN - DEN
2 stops26h 47mBritish Airways
Mon 10/272:48 pmDEN - CGN
2 stops18h 22mBritish Airways
Deal found 9/14$645
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Mon 10/2012:55 pmCGN - DEN
1 stop13h 45mLufthansa
Mon 10/275:20 pmDEN - CGN
1 stop16h 50mLufthansa
Deal found 9/14$672
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/19:10 amCGN - DEN
2 stops19h 57mUnited Airlines
Sat 11/85:25 pmDEN - CGN
2 stops15h 45mUnited Airlines
Deal found 9/13$686
This Flysmarter deal was found by Cheapflights users on 9/14. 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.
Mon 10/206:20 amCGN - DEN
3 stops25h 10mAir Canada
Mon 10/2711:15 amDEN - CGN
2 stops17h 55mAir Canada
Deal found 9/14$702
This Flysmarter deal was found by Cheapflights users on 9/13. 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.
Thu 12/259:10 amCGN - DEN
1 stop17h 45mLufthansa
Sat 1/38:20 pmDEN - CGN
1 stop14h 35mLufthansa
Deal found 9/13$866
This United Airlines deal was found by Cheapflights users on 9/14. 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 12/251:35 pmCGN - DEN
2 stops27h 30mUnited Airlines
Sat 1/34:20 pmDEN - CGN
1 stop12h 10mUnited Airlines
Deal found 9/14$876
This Flysmarter deal was found by Cheapflights users on 9/13. 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.
Thu 12/258:40 amCGN - DEN
2 stops19h 15mAir Canada
Sat 1/34:20 pmDEN - CGN
1 stop12h 10mAir Canada
Deal found 9/13$904

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 September 15, 2025.
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

Sat 11/1

5:10 pm-4:30 pm

1 stop30h 20m

Denver Intl

Sat 11/8

5:25 pm-3:40 pm

1 stop14h 15m

$639

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 10/20

9:15 pm-6:12 pm

2 stops28h 57m

Denver Intl

Mon 10/27

6:25 pm-4:10 pm

1 stop14h 45m

$645

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 10/20

12:55 pm-6:40 pm

1 stop13h 45m

Denver Intl

Mon 10/27

5:20 pm-5:10 pm

1 stop16h 50m

$672

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Sat 11/1

9:10 am-10:07 pm

2 stops19h 57m

Denver Intl

Sat 11/8

5:25 pm-5:10 pm

2 stops15h 45m

$686

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Mon 10/20

6:20 am-11:30 pm

3 stops25h 10m

Denver Intl

Mon 10/27

11:15 am-12:10 pm

2 stops17h 55m

$702

CologneDenver

CGN - DEN

CGNDEN

Cologne Köln/Bonn

Thu 12/25

9:10 am-6:55 pm

1 stop17h 45m

Denver Intl

Sat 1/3

8:20 pm-6:55 pm

1 stop14h 35m

$866

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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 $197). Flying from Cologne to Denver in March is currently the most expensive (average of $278). 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 20m. British Airways provides one of the quickest options available for as low as $639. 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, October is the cheapest month in which you can book a flight from Cologne to Denver (average of $197). Flying from Cologne to Denver in March is currently the most expensive (average of $278). 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
Westminster
Black Hawk
Golden
Winter Park
Broomfield
Greeley
Lone Tree
Lakewood
Cripple Creek
Thornton
Silverthorne
Frisco
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker

Browse thousands of different options on Cheapflights for your next trip

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