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Cheap flights from St. Louis to Cologne from $1,014

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 8/17. 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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0 bags

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Find the cheapest flights from St. Louis to Cologne

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:54 pm - 5:20 pm
STL
-
CGN
15h 26m
2 stops
Lufthansa Logo
1:05 pm - 9:36 pm
CGN
-
STL
15h 31m
2 stops
$1,014Lufthansa
Mon, Aug 17 - Thu, Sep 10
Lufthansa Logo
6:54 pm - 7:30 pm
STL
-
CGN
17h 36m
2 stops
Lufthansa Logo
8:30 am - 9:36 pm
CGN
-
STL
20h 06m
2 stops
$1,015Lufthansa
Mon, Aug 17 - Thu, Sep 10

Lufthansa flights from St. Louis to Cologne

Our best Lufthansa deals on St. Louis to Cologne flight tickets
Lufthansa
Aug 17
STL6:54 pmLambert-St Louis
15h 26m
2 stops
CGN5:20 pmCologne Köln/Bonn
Sep 10
CGN1:05 pmCologne Köln/Bonn
15h 31m
2 stops
STL9:36 pmLambert-St Louis
$1,014
Lufthansa
Aug 17
STL6:54 pmLambert-St Louis
17h 36m
2 stops
CGN7:30 pmCologne Köln/Bonn
Sep 10
CGN8:30 amCologne Köln/Bonn
20h 06m
2 stops
STL9:36 pmLambert-St Louis
$1,015

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 May 23, 2026.
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

Cheapest round-trip
Quickest round-trip

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Mon 8/17

6:54 pm-5:20 pm

2 stops15h 26m

Cologne Köln/Bonn

Thu 9/10

1:05 pm-9:36 pm

2 stops15h 31m

$1,014

St. LouisCologne

STL - CGN

STLCGN

Lambert-St Louis

Mon 8/17

6:54 pm-7:30 pm

2 stops17h 36m

Cologne Köln/Bonn

Thu 9/10

8:30 am-9:36 pm

2 stops20h 06m

$1,015

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 airlines fly to Cologne?

Lufthansa, United Airlines and British Airways are the top three most popular airlines that fly to Cologne from St. Louis according to our data. Lufthansa is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Cologne. Keep in mind that there are 6 different airlines that fly to Cologne on a routine basis, so you have a few additional options to choose from.

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

13h 55m

Direct flights

None
The fastest flight from St. Louis to Cologne takes 13h 55m
There are no direct flights from St. Louis to Cologne. There are no popular flight routes from St. Louis to Cologne.
Search flight deals

Frequently asked questions about flying 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 13h 55m.

  • 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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