CPH - STL

$535 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 3/15. 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

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Everything you should know

Cheapest round-trip
$535
Typical prices: $481-$720
American Airlines
Thu 4/9Mon 4/13
CPH - STL • 2 stops
Cheapest one-way
$527
Typical prices: $662-$1,390
Multiple Airlines
Sun 3/15
CPH - STL • 2 stops
Top airlines
American Airlines
Cheapest • from $535 (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 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 12% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
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

Thu, Apr 9 - Mon, Apr 13
American Airlines Logo
7:05 am - 10:24 pm
CPH
-
STL
22h 19m
2 stops
American Airlines Logo
2:29 pm - 8:50 pm
STL
-
CPH
23h 21m
2 stops
$535American Airlines
Sun, Apr 26 - Sun, May 3
Lufthansa Logo
6:20 am - 1:25 pm
CPH
-
STL
14h 05m
1 stop
Lufthansa Logo
3:30 pm - 6:05 pm
STL
-
CPH
19h 35m
1 stop
$580Lufthansa
Sun, Apr 26 - Sun, May 3
Lufthansa Logo
6:20 am - 1:25 pm
CPH
-
STL
14h 05m
1 stop
Lufthansa Logo
3:30 pm - 6:05 pm
STL
-
CPH
19h 35m
1 stop
$581Lufthansa
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
10:10 am - 9:08 pm
CPH
-
STL
17h 58m
2 stops
United Airlines Logo
11:15 am - 9:30 am
STL
-
CPH
15h 15m
2 stops
$586United Airlines
Sun, Apr 26 - Sun, May 3
United Airlines Logo
6:20 am - 1:25 pm
CPH
-
STL
14h 05m
1 stop
United Airlines Logo
9:00 am - 9:35 am
STL
-
CPH
17h 35m
2 stops
$588United Airlines
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
10:10 am - 10:56 pm
CPH
-
STL
19h 46m
2 stops
United Airlines Logo
11:15 am - 9:30 am
STL
-
CPH
15h 15m
2 stops
$589United Airlines
Sun, Apr 26 - Sun, May 3
Lufthansa Logo
6:20 am - 9:08 pm
CPH
-
STL
21h 48m
2 stops
Lufthansa Logo
3:30 pm - 6:05 pm
STL
-
CPH
19h 35m
1 stop
$590Lufthansa
Tue, Jul 7 - Mon, Jul 13
United Airlines Logo
6:20 am - 1:25 pm
CPH
-
STL
14h 05m
1 stop
United Airlines Logo
3:30 pm - 11:40 am
STL
-
CPH
13h 10m
1 stop
$623United Airlines
Tue, Jul 7 - Mon, Jul 13
United Airlines Logo
6:20 am - 1:25 pm
CPH
-
STL
14h 05m
1 stop
United Airlines Logo
12:10 pm - 9:30 am
STL
-
CPH
14h 20m
2 stops
$678United Airlines
Tue, Jul 7 - Mon, Jul 13
United Airlines Logo
2:40 pm - 6:27 pm
CPH
-
STL
34h 47m
2 stops
United Airlines Logo
8:25 am - 9:30 am
STL
-
CPH
18h 05m
2 stops
$728United Airlines
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 April.

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 $532 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is $726 and $690 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 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$535
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 2% 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 $1,506 for a one-way ticket and $535 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 9219 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

2.0 MediocreJames, Jan 2026
ORD - MSP
Read more United Airlines reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

This Japanese airline provides great service and very helpful in assisting their passengers.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

I so appreciate the crew members on each flight of United. They are outstanding.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Air Canada’s problems are not staff related by and large, no. The problem is tiny jets between the U.S. and Canada - yes, believe it or not they are still “international” (just ask our own Mango Maniac in power in the U.S.). The little aisle is compounded by a design flaw of a “dog leg” starting at seat 12. Woe be unto you if you sit here as passengers and attendants do not have sufficient room to not hit you in the face with backpacks. One thing I will say very positively about Air Canada is you still provide pillows and blankets on transcontinental flights to all, not just the elites. Your tiny improperly designed jets are also a problem flying city to city within Canada also. One can only say you remind us of a “Jet Blue” or “Spirit” experience. Also your luggage space is downright Byzantine! We will endeavor to avoid you and use other U.S. carriers, albeit charging more.

Terrible canceled flight and lost my luggage. Flew me to Halifax. Tgat flight was delayed, had to spend night in airport chair.

Better entertainment & food options more may be adding chicken option or on vegetarian side good quality pasta

My seat was not comfortable. Flight was smooth. Regretfully we had two delays before takeoff

Amazing service, with enthusiastic crew members, and some breathtaking views of Vancouver. No IFE though, as it is only a 1 hour flight on a regional Turboprop jet.

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

My seat was covered in vomit and I will be reaching out to Air Canada

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Digital check in is very poor with air canada compaired to other airlines

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

Information on your arrival and departure airports