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$539+ Cheap flights from Cologne (CGN) to St. Louis (STL)

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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
CGN — STL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Cologne to St. Louis

Cheapest flights from Cologne to St. Louis
Explore the most affordable flight options available from Cologne to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This oojo deal was found by Cheapflights users on 12/11. 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.
Fri 12/264:35 pmCGN - STL
2 stops35h 16mBritish Airways
Tue 12/3011:41 amSTL - CGN
2 stops21h 49mBritish Airways
Deal found 12/11$1,150
This Mytrip deal was found by Cheapflights users on 12/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:20 pmCGN - STL
3 stops32h 23mMultiple Airlines
Tue 12/304:05 pmSTL - CGN
2 stops21h 25mMultiple Airlines
Deal found 12/11$1,253
This Flysmarter deal was found by Cheapflights users on 12/11. 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 12/269:10 amCGN - STL
3 stops19h 33mAir Canada
Tue 12/3011:05 amSTL - CGN
3 stops18h 30mAir Canada
Deal found 12/11$2,169
This Air Canada deal was found by Cheapflights users on 12/11. 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.
Sun 12/141:40 pmCGN - STL
2 stops32h 49mAir Canada
Fri 12/194:05 pmSTL - CGN
2 stops42h 05mAir Canada
Deal found 12/11$2,173
This Air Canada deal was found by Cheapflights users on 12/11. 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.
Sun 12/1410:00 amCGN - STL
3 stops36h 29mMultiple Airlines
Fri 12/194:05 pmSTL - CGN
2 stops42h 05mMultiple Airlines
Deal found 12/11$2,318

Find flight deals from Cologne to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Cologne (CGN) to St. Louis (STL). 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 December 12, 2025.

Round-trip from

$675
(Expedia)

One-way from

$539
(Kiwi.com)
From Cologne Köln/Bonn to Lambert-St Louis
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One-way flight from Cologne Köln/Bonn to Lambert-St Louis
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Cologne to St. Louis 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 December 12, 2025.
Use the filters below to find and compare flights from Cologne to St. Louis that are best for you.

Fly from

Cologne

Fly to

St. Louis

Route

Depart

Return

Price

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Mon 1/26

9:10 am-10:58 pm

3 stops20h 48m

Lambert-St Louis

Mon 2/2

11:20 am-12:10 pm

3 stops17h 50m

$755

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Thu 1/22

5:05 pm-10:59 pm

2 stops36h 54m

Lambert-St Louis

Mon 1/26

6:44 pm-4:10 pm

2 stops14h 26m

$819

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Fri 12/26

4:35 pm-8:51 pm

2 stops35h 16m

Lambert-St Louis

Tue 12/30

11:41 am-4:30 pm

2 stops21h 49m

$1,150

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Fri 12/26

9:20 pm-10:43 pm

3 stops32h 23m

Lambert-St Louis

Tue 12/30

4:05 pm-8:30 pm

2 stops21h 25m

$1,253

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Fri 12/26

9:10 am-9:43 pm

3 stops19h 33m

Lambert-St Louis

Tue 12/30

11:05 am-12:35 pm

3 stops18h 30m

$2,169

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Sat 3/21

9:30 pm-8:08 pm

3 stops52h 38m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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

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

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

Currently, March is the cheapest month in which you can book a flight from Cologne to St. Louis (average of $527). Flying from Cologne to St. Louis in August is currently the most expensive (average of $606). 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 St. Louis. 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 St. Louis?

    Departing from Cologne to St. Louis will take you 20h 48m. The distance between Cologne and St. Louis is about 4494 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Cologne to St. Louis (average of $527). Flying from Cologne to St. Louis in August is currently the most expensive (average of $606). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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