Cheap flights from Copenhagen to St Louis

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Flight deals from Copenhagen Airport to St Louis Airport

Looking for a cheap last-minute deal or the best round-trip flight from Copenhagen Airport to St Louis Airport? If you want to travel next month, round-trip fares start from $571. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Copenhagen to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Copenhagen to St Louis flights are currently cheapest in April.

Copenhagen to St Louis: Alternative routes

Compare routes from Copenhagen to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Copenhagen to St Louis: Flight information

The things to know before you go.
Cheapest flight found$571
Cheapest month to flyApril

Finding cheap flights from Copenhagen to St Louis: Frequently asked questions

The best price we found for a round-trip flight from Copenhagen to St Louis is $571. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Copenhagen to St Louis. But we found flights with one or more stops from $571.
There are no flights flying from Copenhagen to St Louis, as of March 2026.
The cheapest month to fly from Copenhagen to St Louis is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Copenhagen Airport to St Louis Airport on Friday, April 17, 2026.
No airlines currently offer direct flights between Copenhagen Airport and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Lufthansa offers the cheapest flight tickets to St Louis.

Flying from Copenhagen Airport (CPH) to Lambert-St. Louis International Airport (STL): what you need to know

  • St Louis is six hours behind Copenhagen and observes the UTC-5 timezone.

  • Leave enough time to catch your CPH to STL flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

  • Be prepared for longer lines in popular months like June. Arriving up to four hours in advance for international flights and two hours for domestic departures is a good idea.

  • Consider adding a stopover when booking your ticket from Copenhagen Airport to Lambert-St. Louis International Airport. Just deselect 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Check out these options between CPH and STL:

    • O'Hare International Airport

    • Hartsfield-Jackson Atlanta International Airport

    • Washington Dulles International Airport

How to find the cheapest flights from Copenhagen Airport (CPH) to Lambert-St. Louis International Airport (STL)

  • The lowest price we've found for a one-way Copenhagen Airport to Lambert-St. Louis International Airport flight is $358. A return fare right now is $571. Depending on the availability and when you book, these fares could change.

  • To get your hands on cheap tickets from CPH to STL, book ahead. Airlines tend to offer lower fares when flights are first released.

  • Getting cheap flights from Copenhagen Airport to Lambert-St. Louis International Airport is easier if you're flexible with your travel plans. Use the 'Whole month' function to see the best prices across the month and snap up a great deal.

  • Stay on top of deals for cheap flights from CPH to STL by creating a Price Alert. You'll receive an email or notification through the app when a new discounted fare appears.

  • Tailor your flights with filters. Choose your arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from Copenhagen Airport to Lambert-St. Louis International Airport.

Handy information about Copenhagen Airport (CPH)

  • Of the flights that depart from Copenhagen Airport, 76.54% land on time at their destination.

  • Central Copenhagen to Copenhagen Airport is around 11 kilometers. Depending on traffic, it'll take you about 20 minutes to get there if you're driving, ride-sharing or catching a cab.

  • The journey when using public transport usually takes 35 minutes.

  • Get your trip off to a stress-free start by staying near CPH. Whether you have an early flight from Copenhagen Airport to Lambert-St. Louis International Airport or want to avoid feeling rushed, these stays are perfect:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • The address for STL is 10701 Lambert International Blvd..

  • Lambert-St. Louis International Airport to the center of St Louis has a drive time of around 20 minutes. It's approximately 26 kilometers away.

  • Getting to the center by public transport typically takes 35 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • July is the most popular month for flights from Copenhagen Airport to Lambert-St. Louis International Airport. To escape the crowds, travel to St Louis in April.

  • Book your flight from Copenhagen Airport to Lambert-St. Louis International Airport for July if you'd like to go to St Louis during its warmest month. Expect temperatures of between 17ºC (63ºF) and 33ºC (91ºF).

  • Search for cheap tickets from CPH to STL in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -8ºC (18ºF) and 7ºC (45ºF) on average.

Explore more of United States

  • St Louis is easy to fall in love with, but there are so many other parts of United States just waiting to be discovered. Around 418 kilometers north-east of St Louis, a trip to Chicago will keep your itinerary packed. Start with leading attractions like Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

  • If you're ready to explore another corner of United States, consider Indianapolis, roughly 370 kilometers east of St Louis. The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.