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Cologne

$518+ Cheap flights from St. Louis (STL) to Cologne (CGN)

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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CGN
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$783
(Mytrip)

One-way from

$518
(Kiwi.com)
From Lambert-St Louis to Cologne Köln/Bonn
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One-way flight 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 July 30, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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.
Wed 8/201:30 pmSTL - CGN
2 stops14h 40mMultiple Airlines
Tue 8/266:35 pmCGN - STL
3 stops32h 25mMultiple Airlines
Deal found 7/29$783
This Ovago deal was found by Cheapflights users on 7/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/103:59 pmSTL - CGN
2 stops22h 01mBritish Airways
Sun 9/149:35 pmCGN - STL
2 stops29h 40mBritish Airways
Deal found 7/29$866
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 9/126:15 amSTL - CGN
2 stops21h 55mUnited Airlines
Fri 9/1912:55 pmCGN - STL
2 stops32h 24mUnited Airlines
Deal found 7/29$1,055

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 July 30, 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

Wed 8/20

1:30 pm-11:10 am

2 stops14h 40m

Cologne Köln/Bonn

Tue 8/26

6:35 pm-8:00 pm

3 stops32h 25m

$783

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Wed 9/10

3:59 pm-9:00 pm

2 stops22h 01m

Cologne Köln/Bonn

Sun 9/14

9:35 pm-8:15 pm

2 stops29h 40m

$866

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Fri 9/12

6:15 am-11:10 am

2 stops21h 55m

Cologne Köln/Bonn

Fri 9/19

12:55 pm-2:19 pm

2 stops32h 24m

$1,055

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Fri 8/15

7:29 pm-11:00 pm

3 stops44h 31m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 $1,252). 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 July 30, 2025.
Peruse reviews from past customers who have flown with United Airlines and British Airways 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.
United Airlines
7.4
Good
8,896 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.6
Okay
7,217 reviews
United Airlines
7.4
Good
8,896 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • What are the cheapest airlines flying from St. Louis to Cologne round-trip?

    British Airways, at $866, was found to be the cheapest airline from St. Louis to Cologne. An alternate airline flying to your destination would be United Airlines.

  • 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 $1,252). 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$783Average$1,549FlexibilityNo cancel feeOn-time76%

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