STL - CGN

$808 Find Cheap Flights from St. Louis to Cologne - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$808
Typical prices: $929-$1,491
United Airlines
Tue 12/4Tue 12/18
STL - CGN • 2 stops
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Flight Deals

Cheap Flights from St. Louis to Cologne (STL-CGN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Cologne

Fri, Dec 4 - Fri, Dec 18
United Airlines Logo
6:00 am - 4:55 pmSTL  Lambert-St Louis-CGN Cologne Köln/Bonn
27h 55m2 stops Newark Munich Franz Josef Strauss
United Airlines Logo
9:20 am - 11:38 pmCGN  Cologne Köln/Bonn-STL Lambert-St Louis
21h 18m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl
$808United Airlines
Fri, Dec 4 - Fri, Dec 18
Multiple Airlines Logo
4:05 pm - 9:00 pmSTL  Lambert-St Louis-CGN Cologne Köln/Bonn
45h 55m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Milan Malpensa
Multiple Airlines Logo
9:20 am - 3:26 pmCGN  Cologne Köln/Bonn-STL Lambert-St Louis
37h 06m2 stops Munich Franz Josef Strauss Toronto Pearson Intl
$1,044Multiple Airlines
Fri, Dec 4 - Thu, Dec 17
Multiple Airlines Logo
4:05 pm - 4:55 pmSTL  Lambert-St Louis-CGN Cologne Köln/Bonn
17h 50m3 stops Toronto Pearson Intl Paris Charles de Gaulle Munich Franz Josef Strauss
Multiple Airlines Logo
12:55 am - 9:08 pmCGN  Cologne Köln/Bonn-STL Lambert-St Louis
27h 13m3 stops Istanbul Sabiha Gokcen Dublin Chicago O'Hare Intl
$2,322Multiple Airlines
Wed, Dec 16 - Thu, Dec 24
Multiple Airlines Logo
1:18 pm - 10:40 amSTL  Lambert-St Louis-CGN Cologne Köln/Bonn
14h 22m2 stops Chicago O'Hare Intl Vienna Intl
Multiple Airlines Logo
1:35 pm - 9:22 pmCGN  Cologne Köln/Bonn-STL Lambert-St Louis
14h 47m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl
$5,133Multiple Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Cologne flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Cologne with more confidence.

How much is a round-trip flight from St. Louis to Cologne?

Round-trip flights from St. Louis to Cologne start at $808. Prices are below average for this route right now, with typical round-trip fares ranging from $929 to $1,491. The lowest price found in the past 5 days was $808 on United Airlines.

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When to book flights from St. Louis to Cologne

Are your dates flexible? Find out the best times to travel from St. Louis to Cologne based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Cologne flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from St. Louis to Cologne?

    Flights from St. Louis to Cologne usually depart from Lambert-St Louis (STL) and arrive at Cologne Köln/Bonn (CGN).

  • Can I save money by using flexible dates for flights from St. Louis to Cologne?

    Yes. Being flexible with your travel dates can save you up to 58% on the St. Louis to Cologne route. Wednesday is the cheapest departure day at $627 round-trip on average, while Thursday is the most expensive at $1,491, a difference of $864. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Cologne?

    Some of the most popular sights in Cologne are Köln Hauptbahnhof, Kölner Dom and Lanxess Arena. These are among the most viewed places in Cologne on KAYAK.

  • Do I need a passport to fly from St. Louis to Cologne?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from St. Louis to Cologne changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $808 to $5,133. That means the highest observed fare was about 6x higher than the lowest one.

  • What is the time difference between St. Louis and Cologne?

    Cologne is 7 hours ahead of St. Louis (Central European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Cologne Köln/Bonn Airport (CGN)?

    Cologne Köln/Bonn Airport (CGN) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:
    • Flex To Go
    • Wheego
    • Alamo
    • Enterprise Rent-A-Car
    • Avis

Your guide to booking St. Louis to Cologne flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Thursday. On this route, Wednesday flights average $627 - about $864 less than Thursday (58% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Cologne Köln/Bonn Airport.
    - Leonardo Hotel Köln Bonn Airport
    - &repeat Köln Airport
    - Am Flughafen

More options for your flight from St. Louis to Cologne

Complete your trip to Cologne with a hotel stay or car rental

Car rentals in Cologne
Hotels in Cologne
Vacations in Cologne