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Cheap flights from Cologne to St. Louis from $788

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Cologne to St. Louis departing on 6/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Cologne to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:40 pm - 11:44 pm
CGN
-
STL
34h 04m
2 stops
Multiple Airlines Logo
12:23 pm - 12:25 pm
STL
-
CGN
17h 02m
2 stops
$788Multiple Airlines
Wed, Jun 24 - Wed, Jul 1
Multiple Airlines Logo
8:40 pm - 11:35 pm
CGN
-
STL
33h 55m
2 stops
Multiple Airlines Logo
1:20 pm - 12:25 pm
STL
-
CGN
16h 05m
2 stops
$799Multiple Airlines
Tue, Jun 23 - Tue, Jun 30
Air Canada Logo
8:30 am - 9:30 pm
CGN
-
STL
20h 00m
3 stops
Air Canada Logo
1:20 pm - 12:25 pm
STL
-
CGN
16h 05m
2 stops
$949Air Canada
Tue, Jun 23 - Tue, Jun 30
Air Canada Logo
6:20 am - 3:46 pm
CGN
-
STL
16h 26m
2 stops
Air Canada Logo
2:40 pm - 5:20 pm
STL
-
CGN
19h 40m
3 stops
$1,375Air Canada
Wed, Jun 24 - Wed, Jul 1
Multiple Airlines Logo
6:20 am - 8:09 pm
CGN
-
STL
20h 49m
2 stops
Multiple Airlines Logo
1:13 pm - 12:25 pm
STL
-
CGN
16h 12m
2 stops
$1,496Multiple Airlines
Tue, May 26 - Sat, May 30
Air Canada Logo
6:20 am - 6:13 pm
CGN
-
STL
18h 53m
3 stops
Air Canada Logo
2:15 pm - 7:10 pm
STL
-
CGN
21h 55m
2 stops
$1,566Air Canada
Tue, May 26 - Sat, May 30
Air Canada Logo
6:20 am - 8:00 pm
CGN
-
STL
20h 40m
2 stops
Air Canada Logo
12:10 pm - 12:25 pm
STL
-
CGN
17h 15m
2 stops
$1,569Air Canada
Thu, Oct 8 - Sun, Oct 11
Air Canada Logo
6:20 am - 8:00 pm
CGN
-
STL
20h 40m
2 stops
Air Canada Logo
12:10 pm - 12:25 pm
STL
-
CGN
17h 15m
2 stops
$1,570Air Canada
Thu, Oct 8 - Sun, Oct 11
Air Canada Logo
6:20 am - 8:00 pm
CGN
-
STL
20h 40m
2 stops
Air Canada Logo
12:10 pm - 12:25 pm
STL
-
CGN
17h 15m
2 stops
$1,572Air Canada
Thu, Oct 8 - Sun, Oct 11
Multiple Airlines Logo
10:50 pm - 8:07 pm
CGN
-
STL
28h 17m
3 stops
Multiple Airlines Logo
10:20 am - 12:25 pm
STL
-
CGN
19h 05m
3 stops
$1,596Multiple Airlines
Wed, Jun 24 - Wed, Jul 1

Air Canada flights from Cologne to St. Louis

Our best Air Canada deals on Cologne to St. Louis flight tickets
Air Canada
Jun 23
CGN8:30 amCologne Köln/Bonn
20h 00m
3 stops
STL9:30 pmLambert-St Louis
Jun 30
STL1:20 pmLambert-St Louis
16h 05m
2 stops
CGN12:25 pmCologne Köln/Bonn
$949
Air Canada
Jun 24
CGN6:20 amCologne Köln/Bonn
16h 26m
2 stops
STL3:46 pmLambert-St Louis
Jul 1
STL2:40 pmLambert-St Louis
19h 40m
3 stops
CGN5:20 pmCologne Köln/Bonn
$1,375
Air Canada
May 26
CGN6:20 amCologne Köln/Bonn
18h 53m
3 stops
STL6:13 pmLambert-St Louis
May 30
STL2:15 pmLambert-St Louis
21h 55m
2 stops
CGN7:10 pmCologne Köln/Bonn
$1,566

momondo 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, momondo users made 832,500 searches. Data last updated May 12, 2026.
Use the filters below to find and compare flights from Cologne to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Wed 6/24

8:40 pm-11:44 pm

2 stops34h 04m

Lambert-St Louis

Wed 7/1

12:23 pm-12:25 pm

2 stops17h 02m

$788

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Tue 6/23

8:40 pm-11:35 pm

2 stops33h 55m

Lambert-St Louis

Tue 6/30

1:20 pm-12:25 pm

2 stops16h 05m

$799
Quickest round-trip

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Tue 6/23

8:30 am-9:30 pm

3 stops20h 00m

Lambert-St Louis

Tue 6/30

1:20 pm-12:25 pm

2 stops16h 05m

$949

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Wed 6/24

6:20 am-3:46 pm

2 stops16h 26m

Lambert-St Louis

Wed 7/1

2:40 pm-5:20 pm

3 stops19h 40m

$1,375

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Tue 5/26

6:20 am-8:09 pm

2 stops20h 49m

Lambert-St Louis

Sat 5/30

1:13 pm-12:25 pm

2 stops16h 12m

$1,496

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Tue 5/26

6:20 am-6:13 pm

3 stops18h 53m

Lambert-St Louis

Sat 5/30

2:15 pm-7:10 pm

2 stops21h 55m

$1,566

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Thu 10/8

6:20 am-8:00 pm

2 stops20h 40m

Lambert-St Louis

Sun 10/11

12:10 pm-12:25 pm

2 stops17h 15m

$1,569

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Thu 10/8

6:20 am-8:00 pm

2 stops20h 40m

Lambert-St Louis

Sun 10/11

12:10 pm-12:25 pm

2 stops17h 15m

$1,570

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Thu 10/8

6:20 am-8:00 pm

2 stops20h 40m

Lambert-St Louis

Sun 10/11

12:10 pm-12:25 pm

2 stops17h 15m

$1,572

CologneSt. Louis

CGN - STL

CGNSTL

Cologne Köln/Bonn

Wed 6/24

10:50 pm-8:07 pm

3 stops28h 17m

Lambert-St Louis

Wed 7/1

10:20 am-12:25 pm

3 stops19h 05m

$1,596

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Cologne to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Cologne to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Cologne to St. Louis (CGN to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cologne to St. Louis

Fastest flight time

34h 04m

Direct flights

None
The fastest flight from Cologne to St. Louis takes 34h 04m
There are no direct flights from Cologne to St. Louis. There are no popular flight routes from Cologne to St. Louis.
Search flight deals

Frequently asked questions about flying from Cologne to St. Louis

  • How far is Cologne Köln/Bonn to Lambert-St Louis by plane?

    The straight-line distance from Cologne Köln/Bonn to Lambert-St Louis is 4484.3 mi. A reasonable flight in good conditions will take 34h 04m.

  • When did momondo last update prices for flights from Cologne Köln/Bonn Airport to Lambert-St Louis Airport?

    Prices for flights from Cologne Köln/Bonn Airport to Lambert-St Louis Airport were last updated today.

  • How old do you have to be to fly from Cologne Köln/Bonn Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cologne Köln/Bonn Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Cologne to St. Louis

  • How do I get Price Alerts for flights from Cologne to St. Louis?

    Price Alerts will notify you by email when the price for flights to St. Louis from Cologne decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Cologne to St. Louis with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Cologne to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Cologne to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Cologne to St. Louis with flexible booking policies on momondo?

All flight searches from Cologne to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Cologne to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Cologne.

I’m not ready to book a flight from Cologne to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis from Cologne are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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