Cheap flights from St. Louis to Cologne from $558

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Cologne departing on 2/24. 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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Cheap round-trip flights

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Lufthansa Logo
11:39 am - 12:35 pm
STL
-
CGN
17h 56m2 stops
Lufthansa Logo
1:15 pm - 12:05 am
CGN
-
STL
17h 50m2 stops
$558Lufthansa
Tue, Feb 24 - Sun, Mar 1
British Airways Logo
6:00 am - 3:40 pm
STL
-
CGN
26h 40m2 stops
British Airways Logo
5:15 pm - 11:52 pm
CGN
-
STL
36h 37m2 stops
$572British Airways
Thu, Mar 5 - Mon, Mar 16
United Airlines Logo
4:49 pm - 5:10 pm
STL
-
CGN
17h 21m2 stops
United Airlines Logo
9:10 am - 11:59 pm
CGN
-
STL
21h 49m2 stops
$776United Airlines
Sat, Jan 31 - Sat, Feb 7
United Airlines Logo
4:49 pm - 5:10 pm
STL
-
CGN
17h 21m2 stops
United Airlines Logo
6:45 am - 9:13 pm
CGN
-
STL
21h 28m2 stops
$885United Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
3:11 pm - 5:10 pm
STL
-
CGN
18h 59m2 stops
United Airlines Logo
6:45 am - 7:27 pm
CGN
-
STL
19h 42m2 stops
$886United Airlines
Fri, Jan 30 - Tue, Feb 3
Air Canada Logo
4:05 pm - 4:20 pm
STL
-
CGN
17h 15m2 stops
Air Canada Logo
8:40 am - 9:07 pm
CGN
-
STL
18h 27m3 stops
$897Air Canada
Thu, Mar 5 - Mon, Mar 16
Air Canada Logo
4:05 pm - 12:10 pm
STL
-
CGN
13h 05m2 stops
Air Canada Logo
8:40 am - 9:07 pm
CGN
-
STL
18h 27m3 stops
$899Air Canada
Thu, Mar 5 - Mon, Mar 16
Multiple Airlines Logo
4:05 pm - 10:25 pm
STL
-
CGN
23h 20m2 stops
Multiple Airlines Logo
10:00 am - 3:29 pm
CGN
-
STL
36h 29m3 stops
$1,599Multiple Airlines
Tue, Feb 24 - Sun, Mar 1

United Airlines flights from St. Louis to Cologne

Our best United Airlines deals on St. Louis to Cologne flight tickets
United Airlines
Jan 31
STL4:49 pmLambert-St Louis
17h 21m
2 stops
CGN5:10 pmCologne Köln/Bonn
Feb 7
CGN9:10 amCologne Köln/Bonn
21h 49m
2 stops
STL11:59 pmLambert-St Louis
United Airlines
Jan 30
STL4:49 pmLambert-St Louis
17h 21m
2 stops
CGN5:10 pmCologne Köln/Bonn
Feb 3
CGN6:45 amCologne Köln/Bonn
21h 28m
2 stops
STL9:13 pmLambert-St Louis
United Airlines
Jan 30
STL3:11 pmLambert-St Louis
18h 59m
2 stops
CGN5:10 pmCologne Köln/Bonn
Feb 3
CGN6:45 amCologne Köln/Bonn
19h 42m
2 stops
STL7:27 pmLambert-St Louis

Air Canada flights from St. Louis to Cologne

Our best Air Canada deals on St. Louis to Cologne flight tickets
Air Canada
Mar 5
STL4:05 pmLambert-St Louis
17h 15m
2 stops
CGN4:20 pmCologne Köln/Bonn
Mar 16
CGN8:40 amCologne Köln/Bonn
18h 27m
3 stops
STL9:07 pmLambert-St Louis
Air Canada
Mar 5
STL4:05 pmLambert-St Louis
13h 05m
2 stops
CGN12:10 pmCologne Köln/Bonn
Mar 16
CGN8:40 amCologne Köln/Bonn
18h 27m
3 stops
STL9:07 pmLambert-St Louis

momondo 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from St. Louis to Cologne that are best for you.

Fly from

Fly to

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-12:05 am

2 stops17h 50m

$558

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Thu 3/5

6:00 am-3:40 pm

2 stops26h 40m

Cologne Köln/Bonn

Mon 3/16

5:15 pm-11:52 pm

2 stops36h 37m

$572

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Sat 1/31

4:49 pm-5:10 pm

2 stops17h 21m

Cologne Köln/Bonn

Sat 2/7

9:10 am-11:59 pm

2 stops21h 49m

$776

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Fri 1/30

4:49 pm-5:10 pm

2 stops17h 21m

Cologne Köln/Bonn

Tue 2/3

6:45 am-9:13 pm

2 stops21h 28m

$885

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Fri 1/30

3:11 pm-5:10 pm

2 stops18h 59m

Cologne Köln/Bonn

Tue 2/3

6:45 am-7:27 pm

2 stops19h 42m

$886

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Thu 3/5

4:05 pm-4:20 pm

2 stops17h 15m

Cologne Köln/Bonn

Mon 3/16

8:40 am-9:07 pm

3 stops18h 27m

$897

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Thu 3/5

4:05 pm-12:10 pm

2 stops13h 05m

Cologne Köln/Bonn

Mon 3/16

8:40 am-9:07 pm

3 stops18h 27m

$899

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Tue 2/24

4:05 pm-10:25 pm

2 stops23h 20m

Cologne Köln/Bonn

Sun 3/1

10:00 am-3:29 pm

3 stops36h 29m

$1,599

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Cologne from

How to get the cheapest flight ticket from St. Louis to Cologne

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Cologne?

The cheapest day to depart from St. Louis to Cologne is on a Wednesday when prices can be found for as low as $784. On the other hand, Monday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,661.

What is the cheapest time of day to depart on your flight to Cologne?

The cheapest time of day to fly to Cologne is in the afternoon when flights can be purchased for as low as $869. In the morning is when there is more demand to fly to Cologne, so prices are often more expensive at around $1,549 per ticket.

When to book flights from St. Louis to Cologne

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

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

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

Fastest flight time

16h 24m

Direct flights

None
The fastest flight from St. Louis to Cologne takes 16h 24m
There are no direct flights from St. Louis to Cologne. There are no popular flight routes from St. Louis to Cologne.
  • How far is Lambert-St Louis to Cologne Köln/Bonn by plane?

    Lambert-St Louis and Cologne Köln/Bonn are 4484.3 mi apart from one another. In terms of flight time, this usually takes a little over 16h 24m.

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

    Prices for flights from Lambert-St Louis Airport to Cologne Köln/Bonn Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Cologne Köln/Bonn Airport.

  • What documentation or ID do you need to fly to Cologne Köln/Bonn Airport?

    The travel and health documents required for your trip to Cologne Köln/Bonn 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 Cologne Köln/Bonn Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cologne from St. Louis.

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

Yes. All flights to Cologne from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential St. Louis to Cologne flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for St. Louis to Cologne flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Sat 1/17
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