CPH - STL

$324 Find Cheap Flights from Copenhagen to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Copenhagen to St. Louis departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Copenhagen to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Copenhagen to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Copenhagen to St. Louis (CPH-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Copenhagen to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Wed, Nov 12 - Tue, Nov 25
Lufthansa Logo
6:50 am - 1:55 pmCPH-STL
14h 05m1 stop
Lufthansa Logo
6:43 pm - 5:35 pmSTL-CPH
15h 52m2 stops
$508Lufthansa
Find Deal
Wed, Nov 12 - Tue, Nov 25
Lufthansa Logo
6:50 am - 1:55 pmCPH-STL
14h 05m1 stop
Lufthansa Logo
12:31 pm - 1:35 pmSTL-CPH
18h 04m2 stops
$511Lufthansa
Find Deal
Wed, Nov 12 - Tue, Nov 25
Lufthansa Logo
10:05 am - 9:40 pmCPH-STL
18h 35m2 stops
Lufthansa Logo
6:43 pm - 5:35 pmSTL-CPH
15h 52m2 stops
$514Lufthansa
Find Deal
Thu, Nov 13 - Wed, Nov 19
Multiple Airlines Logo
10:10 am - 3:29 pmCPH-STL
36h 19m2 stops
Multiple Airlines Logo
4:05 pm - 2:05 pmSTL-CPH
15h 00m2 stops
$515Multiple Airlines
Find Deal
Wed, Nov 12 - Tue, Nov 25
Lufthansa Logo
10:05 am - 9:40 pmCPH-STL
18h 35m2 stops
Lufthansa Logo
12:31 pm - 9:20 amSTL-CPH
13h 49m2 stops
$526Lufthansa
Find Deal
Sat, Dec 13 - Mon, Jan 19
American Airlines Logo
6:15 am - 7:30 pmCPH-STL
20h 15m2 stops
American Airlines Logo
11:05 am - 11:30 amSTL-CPH
17h 25m2 stops
$549American Airlines
Find Deal
Thu, Nov 13 - Wed, Nov 19
United Airlines Logo
2:20 pm - 3:29 pmCPH-STL
32h 09m2 stops
United Airlines Logo
12:31 pm - 11:45 amSTL-CPH
16h 14m2 stops
$552United Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 23
Multiple Airlines Logo
2:20 pm - 3:29 pmCPH-STL
32h 09m2 stops
Multiple Airlines Logo
3:50 pm - 6:05 pmSTL-CPH
19h 15m1 stop
$561Multiple Airlines
Find Deal
Sun, Nov 16 - Tue, Nov 25
American Airlines Logo
6:55 am - 7:29 pmCPH-STL
19h 34m2 stops
American Airlines Logo
6:13 pm - 7:00 pmSTL-CPH
17h 47m2 stops
$580American Airlines
Find Deal
Sat, Dec 13 - Mon, Jan 19
Air Canada Logo
6:50 am - 9:40 pmCPH-STL
21h 50m3 stops
Air Canada Logo
4:05 pm - 2:00 pmSTL-CPH
14h 55m2 stops
$727Air Canada
Find Deal

Everything you should know

Top airlines
Lufthansa
Cheapest • from $508 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 14% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$508
Typical prices: $503-$658
Lufthansa
Wed 11/12Tue 11/25
CPH - STL • 1 stop
Cheapest one-way
$324
Overall average: $627
Finnair
Sun 1/18
CPH - STL • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Booking Insights

KAYAK's insights & trends for Copenhagen to St. Louis flights

Get data-powered insights and trends into flights from Copenhagen to St. Louis to help you find the cheapest flights, the best time to fly and much more.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Copenhagen to St. Louis departing in November.

What’s the cheapest day of the week to fly from Copenhagen to St. Louis?

The average price of all round-trip flights from Copenhagen to St. Louis clicked on KAYAK for each day over the last 12 months.

When flying from Copenhagen to St. Louis, you should consider leaving on a Sunday and avoid Wednesdays if you are looking for the best rates. For your return to Copenhagen, you’ll find the best rates on Tuesdays and the most expensive ones on Thursdays.

What is the cheapest month to fly from Copenhagen to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Copenhagen to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Copenhagen to St. Louis is April, where tickets cost $481 (return) on average. On the other hand, the most expensive months are July and September, where the average cost of round-trip tickets is $729 and $614 respectively.

How far in advance should I book a flight from Copenhagen to St. Louis?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Copenhagen to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Copenhagen to St. Louis, you should book around 2 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$324
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Copenhagen to St. Louis

When to book flights from Copenhagen to St. Louis

Are your dates flexible? Find out the best times to travel from Copenhagen to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Copenhagen to St. Louis

  • What is the cheapest flight from Copenhagen to St. Louis?

    In the last 3 days, the lowest price for a flight from Copenhagen to St. Louis was $324 for a one-way ticket and $508 for a round-trip.

  • Do I need a passport to fly between Copenhagen and St. Louis?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Copenhagen and on arrival in St. Louis.

  • Which aircraft models fly most regularly from Copenhagen to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Copenhagen to St. Louis?

    Star Alliance is the only airline alliance operating flights between Copenhagen and St. Louis.

  • Which is the best airline for flights from Copenhagen to St. Louis, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Copenhagen to St. Louis are United Airlines and Air Canada. With an average price for the route of $594 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of $588 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Copenhagen to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Copenhagen to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Copenhagen to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Copenhagen is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Copenhagen to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Copenhagen with another airline. Booking your flights between Copenhagen and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Copenhagen to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Copenhagen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Copenhagen to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Copenhagen to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Copenhagen to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9001 reviews
7.1Entertainment
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
Airline reviews

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

10.0 ExcellentDr. Joseph, Oct 2025STL - ORD
Read more United Airlines reviews

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Flight left on time. Boarding was easy. Arrived to EWR 30 mins early. Luggage was deplaned in good time. Overall a very good experience.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Excellent all round, first time flying United. App is very helpful.

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

It was crazy, boarded over a hour late from scheduled departure. Then when arrived in BNA issued with getting off the plane…over 1/2 hour. Not looking forward to flying Air Canada, ever again.

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

The airplane is way too tight, you can hardly enter into your row to sit.. more like kids seats than adults.

taking our carryon and forcing us to check it through

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

Great flight. Only complaint is it took over an hour for my luggage to get to the carousel on the return to LAX That was irritating

I knew I was going to fall asleep unsettlingly from exhaustion so I warned the guy next to me in advance. The attendant took to checking on me frequently and even insisted I take my snack because I said no while sleep hazed and then absolutely wanted it about 5 minutes later. He was So caring and kind to my situation!!

First message when all on board was that we didnt have a pilot, then they found one, then it was something about the bridge something not working, they will either fix or do manually. Flight of course was leaving late with all the cruise guests worrying about making it to their ship in time. Then only some luggage made it off the ship. Around 15 to 20 people waiting. 45 min later arrived except mine. I asked the rep at the luggage conveyor, he asked me my name. Then said it was not picked up with the first batch so they put it in a room. I was going to take public transport but now worried about time so took a taxi that cost me $65 USD

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

Everything you need to know for your flight from Copenhagen to St. Louis

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.