HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cologne

$561+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CGN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Cologne with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 January 29, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/26. 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 2/2411:39 am
STL
-
CGN
2 stops17h 56m
Lufthansa
Sun 3/11:15 pm
CGN
-
STL
2 stops16h 44m
Lufthansa
Deal found 1/26$561
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:13 pm
STL
-
CGN
2 stops17h 17m
British Airways
Sun 3/14:35 pm
CGN
-
STL
2 stops38h 13m
British Airways
Deal found 1/27$574
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/284:05 pm
STL
-
CGN
2 stops47h 20m
Multiple Airlines
Sat 3/75:55 pm
CGN
-
STL
2 stops27h 00m
Multiple Airlines
Deal found 1/27$652
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/52:00 pm
STL
-
CGN
2 stops18h 40m
British Airways
Mon 3/165:15 pm
CGN
-
STL
2 stops35h 47m
British Airways
Deal found 1/27$692
This Air Canada deal was found by Cheapflights users on 1/25. 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.
Thu 1/294:05 pm
STL
-
CGN
2 stops13h 05m
Air Canada
Mon 2/26:55 pm
CGN
-
STL
2 stops51h 20m
Air Canada
Deal found 1/25$789
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/127:41 am
STL
-
CGN
2 stops27h 34m
United Airlines
Thu 3/191:35 pm
CGN
-
STL
2 stops15h 24m
United Airlines
Deal found 1/26$862

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$561
(Cheapflightsfares)
Provider with most accurate pricing for Lambert-St Louis-Cologne Köln/Bonn flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Cologne Köln/Bonn flights.
Search Deals
From Lambert-St Louis to Cologne Köln/Bonn
Search Deals

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 January 29, 2026.
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

Tue 2/24

11:39 am-12:35 pm

2 stops17h 56m

Cologne Köln/Bonn

Sun 3/1

1:15 pm-10:59 pm

2 stops16h 44m

$561

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Tue 2/24

4:13 pm-4:30 pm

2 stops17h 17m

Cologne Köln/Bonn

Sun 3/1

4:35 pm-11:48 pm

2 stops38h 13m

$574

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Sat 2/28

4:05 pm-10:25 pm

2 stops47h 20m

Cologne Köln/Bonn

Sat 3/7

5:55 pm-1:55 pm

2 stops27h 00m

$652

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Thu 3/5

2:00 pm-3:40 pm

2 stops18h 40m

Cologne Köln/Bonn

Mon 3/16

5:15 pm-11:02 pm

2 stops35h 47m

$692

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Thu 3/12

7:41 am-5:15 pm

2 stops27h 34m

Cologne Köln/Bonn

Thu 3/19

1:35 pm-10:59 pm

2 stops15h 24m

$862

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Tue 2/24

2:06 pm-4:30 pm

2 stops19h 24m

Cologne Köln/Bonn

Sun 3/1

4:35 pm-11:11 am

3 stops25h 36m

$925

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Wed 5/20

3:30 pm-12:20 pm

2 stops13h 50m

$1,013

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Compare providers for flights from St. Louis to Cologne

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Cologne in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Cologne flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Cologne flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Cologne flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Cologne 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 St. Louis-Cologne 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 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, August is the cheapest month in which you can book a flight from St. Louis to Cologne (average of $581). Flying from St. Louis to Cologne in May is currently the most expensive (average of $870). 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 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 17m. Lufthansa provides one of the quickest options available for as low as $574. The distance between St. Louis and Cologne is about 4494 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, August is the cheapest month in which you can book a flight from St. Louis to Cologne (average of $581). Flying from St. Louis to Cologne in May is currently the most expensive (average of $870). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.