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Cologne

$647+ Cheap flights from St. Louis (STL) 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CGN
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap flight deals from St. Louis to Cologne

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 September 14, 2025.

Round-trip from

$647
(oojo)
From Lambert-St Louis to Cologne Köln/Bonn
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Find flight deals from St. Louis to Cologne

Cheapest flights from St. Louis to Cologne
Explore the most affordable flight options available from St. Louis to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This oojo deal was found by Cheapflights users on 9/12. 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.
Mon 10/275:02 pmSTL - CGN
2 stops17h 08mBritish Airways
Mon 11/35:15 pmCGN - STL
2 stops34h 45mBritish Airways
Deal found 9/12$647
This Air Canada deal was found by Cheapflights users on 9/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/274:05 pmSTL - CGN
2 stops23h 10mAir Canada
Mon 11/38:40 amCGN - STL
3 stops20h 00mAir Canada
Deal found 9/12$1,535
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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.
Fri 12/121:00 pmSTL - CGN
2 stops15h 05mMultiple Airlines
Mon 12/151:20 pmCGN - STL
2 stops15h 20mMultiple Airlines
Deal found 9/12$2,492

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis 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 September 14, 2025.
Use the filters below to find and compare flights from St. Louis to Cologne that are best for you.

Fly from

St. Louis

Fly to

Cologne

Route

Depart

Return

Price

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Mon 10/27

5:02 pm-4:10 pm

2 stops17h 08m

Cologne Köln/Bonn

Mon 11/3

5:15 pm-9:00 pm

2 stops34h 45m

$647

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Tue 2/24

6:32 pm-4:30 pm

2 stops14h 58m

Cologne Köln/Bonn

Sun 3/1

4:35 pm-10:24 pm

2 stops36h 49m

$729

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Tue 2/24

4:44 pm-4:30 pm

2 stops16h 46m

Cologne Köln/Bonn

Sun 3/1

4:35 pm-9:27 am

3 stops23h 52m

$964

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Mon 10/27

4:05 pm-9:15 pm

2 stops23h 10m

Cologne Köln/Bonn

Mon 11/3

8:40 am-9:40 pm

3 stops20h 00m

$1,535

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Fri 12/12

1:00 pm-11:05 am

2 stops15h 05m

Cologne Köln/Bonn

Mon 12/15

1:20 pm-9:40 pm

2 stops15h 20m

$2,492

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Best time to book a flight from St. Louis to Cologne

Have a flexible travel schedule? Discover the best time to fly to Cologne from St. Louis 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 St. Louis to Cologne

What is the cheapest month to book a flight from St. Louis to Cologne?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Cologne (average of $649). Flying from St. Louis to Cologne in June is currently the most expensive (average of $1,249). 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.

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 September 14, 2025.
Peruse reviews from past customers who have flown with Lufthansa from St. Louis to Cologne to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,409 reviews

Comfort

6.8

Crew

7.6

Entertainment

6.4

Overall

6.8

Boarding

7.0

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.
Lufthansa
6.8
Okay
7,409 reviews
Lufthansa
6.8
Okay
7,409 reviews

Comfort

6.8

Crew

7.6

Entertainment

6.4

Overall

6.8

Boarding

7.0

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Cologne. 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 St. Louis to Cologne?

    A quick flight from St. Louis to Cologne can take about 17h 08m. British Airways provides one of the quickest options available for as low as $647. The distance between St. Louis and Cologne is about 4494 mi.

  • What is the cheapest airline to fly from St. Louis to Cologne round-trip?

    Lufthansa, at $783, was found to be the cheapest airline from St. Louis to Cologne..

  • Can I find deals for flights from St. Louis to Cologne that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Cologne?

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

  • Can I find deals for business class flights from St. Louis to Cologne?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Cologne?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Cologne (average of $649). Flying from St. Louis to Cologne in June is currently the most expensive (average of $1,249). 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

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Top airline flying from St. Louis to Cologne

Discover the top airline that operate flights from St. Louis 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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$783Average$910FlexibilityNo cancel feeOn-time76%

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