CPH - STL

$343 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 2/10. 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
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Everything you should know

Cheapest round-trip
$529
Overall average: $711
Lufthansa
Fri 1/23Wed 1/28
CPH - STL • 1 stop
Cheapest one-way
$343
Typical prices: $809-$1,268
Multiple Airlines
Tue 2/10
CPH - STL • 2 stops
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 17% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Fri, Jan 23 - Wed, Jan 28
Lufthansa Logo
6:50 am - 1:55 pm
CPH
-
STL
14h 05m1 stop
Lufthansa Logo
11:22 am - 12:25 pm
STL
-
CPH
18h 03m2 stops
$529Lufthansa
Fri, Jan 23 - Wed, Jan 28
Lufthansa Logo
6:50 am - 1:55 pm
CPH
-
STL
14h 05m1 stop
Lufthansa Logo
3:50 pm - 11:45 am
STL
-
CPH
12h 55m1 stop
$531Lufthansa
Fri, Jan 23 - Wed, Jan 28
Lufthansa Logo
6:50 am - 11:59 pm
CPH
-
STL
24h 09m2 stops
Lufthansa Logo
12:44 pm - 12:25 pm
STL
-
CPH
16h 41m2 stops
$536Lufthansa
Fri, Jan 23 - Wed, Jan 28
Lufthansa Logo
6:50 am - 1:55 pm
CPH
-
STL
14h 05m1 stop
Lufthansa Logo
1:15 pm - 12:25 pm
STL
-
CPH
16h 10m2 stops
$540Lufthansa
Fri, Jan 23 - Wed, Jan 28
Lufthansa Logo
6:50 am - 1:55 pm
CPH
-
STL
14h 05m1 stop
Lufthansa Logo
3:50 pm - 11:45 am
STL
-
CPH
12h 55m1 stop
$556Lufthansa
Fri, Jan 23 - Wed, Jan 28
Multiple Airlines Logo
6:50 am - 1:55 pm
CPH
-
STL
14h 05m1 stop
Multiple Airlines Logo
4:05 pm - 2:05 pm
STL
-
CPH
15h 00m2 stops
$569Multiple Airlines
Mon, Jan 26 - Mon, Feb 2
United Airlines Logo
6:55 am - 10:00 pm
CPH
-
STL
22h 05m2 stops
United Airlines Logo
3:11 pm - 2:00 pm
STL
-
CPH
15h 49m2 stops
$570United Airlines
Fri, Jan 23 - Wed, Jan 28
Air Canada Logo
2:30 pm - 3:29 pm
CPH
-
STL
31h 59m2 stops
Air Canada Logo
4:05 pm - 9:00 am
STL
-
CPH
33h 55m2 stops
$571Air Canada
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
10:10 am - 7:27 pm
CPH
-
STL
16h 17m2 stops
United Airlines Logo
3:11 pm - 2:00 pm
STL
-
CPH
15h 49m2 stops
$574United Airlines
Fri, Jan 23 - Wed, Jan 28
Multiple Airlines Logo
6:20 am - 3:29 pm
CPH
-
STL
40h 09m3 stops
Multiple Airlines Logo
4:05 pm - 2:05 pm
STL
-
CPH
15h 00m2 stops
$852Multiple 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.

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 February, where tickets cost $493 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is $733 and $711 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 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$343
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly with an average 4% 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 $343 for a one-way ticket and $529 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 $554 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 9094 reviews
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
7.7Boarding
Airline reviews

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

6.0 GoodSue, Dec 2025
SJO - SFO
Read more United Airlines reviews

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Staff on board was excellent. Positive upbeat helpful- like it used to be.

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

For an expensive flight to another country, United has a lot of nerve serving pretzels and no meals (unless, of course, you want to buy something to eat). Unacceptable.

The food is terrible. The same pasta or chicken with bad taste and presentation

United have really come back. Airport and boarding process is clear and good, app and information also very good

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

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

Baggage delayed we had to catch our cruise without any clothes 😒

Air Canada Rouge is great. Toronto Airport is the usual nightmare

Good but need to be better with the flight times.

The staff could not have been any friendlier. Lots of usb ports on our aircraft.

The staff was great and made the long trip easy peasy!

Air Canada cancelled our flight and reschedule it 26 hours later that completely interrupted my family's long waited Japan trip, it wasn't due to natural reason such as weather but under the company's control. On the day we wasted 9 hours of our time from 6am to 3pm, including a few hours in the customer counter waiting for supervisor to handle our rescheduling. When we came to the counter for rebooking help there were at least 4 employees on the counter but we were told they were not trained to handle customer rebooking, we were also told the supervisor could come 10:30 to handle our rebooking, but she showed up more than one hour later, the end result was exactly the same so the few hours we spent waiting for her was completely wasted; We already prepaid hotel and all the tickets for the our stay in Tokyo so all of the cost for the first day is completed wasted; The $80 meal voucher issues was far less than our financial loss due to the financial cancellation, and it was not surprisingly invalid (as Your company screw up everything possible along the flight), the vouchers were supposed to last 72 hours, when we tried to used it at our lounge next day less than 24 hours from its issuing at a designated restaurant, the worker there couldn't scan the vouchers after multiple tries on all 4 vouchers issued, so we had to pay the food from our own money; For the two return flights they were also full of unfortunate events that caused bad experience and further delay and waste of our time, both flights departed late and the last leg had another significant delay of more than half an hour after touchdown, the gate was for some reason not available so we waited more than half an hour, when we got out of plane it was almost one hour later than the supposed arrival time; The gate you arranged is the farthest in Vancouver airport, also was the luggage pickup location in Seattle airport; We also called customer service for rescheduling help and after a long time wait (more than an hour) we got a call back but the CS representative was equally clueless and unhelpful. Other than a fatal crash, your company couldn't do anything right and provided the worst service possible among the tons of flights we have taken in our lives.

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

Information on your arrival and departure airports