STL - CPH

$359 Find Cheap Flights from St. Louis to Copenhagen

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Copenhagen departing on 11/15. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Copenhagen

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Copenhagen.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Copenhagen.
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Copenhagen 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 St. Louis to Copenhagen

Mon, Oct 13 - Mon, Oct 27
Scandinavian Airlines Logo
3:59 pm - 10:50 amSTL-CPH
11h 51m1 stop
Scandinavian Airlines Logo
1:15 pm - 11:41 pmCPH-STL
16h 26m1 stop
$537Scandinavian Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Finnair Logo
12:21 pm - 6:35 pmSTL-CPH
24h 14m2 stops
Finnair Logo
7:20 pm - 7:30 pmCPH-STL
31h 10m2 stops
$594Finnair
Find Deal
Mon, Oct 13 - Mon, Oct 27
Air Canada Logo
4:05 pm - 2:10 pmSTL-CPH
39h 05m2 stops
Air Canada Logo
2:20 pm - 3:29 pmCPH-STL
55h 09m2 stops
$633Air Canada
Find Deal
Fri, Mar 6 - Fri, Mar 13
Lufthansa Logo
3:50 pm - 12:00 pmSTL-CPH
13h 10m1 stop
Lufthansa Logo
6:50 am - 2:55 pmCPH-STL
14h 05m1 stop
$650Lufthansa
Find Deal
Fri, Mar 6 - Fri, Mar 13
United Airlines Logo
3:50 pm - 12:00 pmSTL-CPH
13h 10m1 stop
United Airlines Logo
6:50 am - 2:55 pmCPH-STL
14h 05m1 stop
$654United Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
United Airlines Logo
1:00 pm - 9:20 amSTL-CPH
13h 20m2 stops
United Airlines Logo
6:50 am - 1:55 pmCPH-STL
14h 05m1 stop
$655United Airlines
Find Deal
Fri, Mar 6 - Fri, Mar 13
Air Canada Logo
4:05 pm - 1:45 pmSTL-CPH
14h 40m2 stops
Air Canada Logo
2:30 pm - 3:29 pmCPH-STL
30h 59m2 stops
$667Air Canada
Find Deal
Sun, Mar 8 - Fri, Mar 13
Lufthansa Logo
4:50 pm - 1:35 pmSTL-CPH
14h 45m1 stop
Lufthansa Logo
6:50 am - 2:55 pmCPH-STL
14h 05m1 stop
$700Lufthansa
Find Deal
Tue, Oct 7 - Sun, Oct 12
Delta Logo
5:15 pm - 3:45 pmSTL-CPH
15h 30m2 stops
Delta Logo
12:30 pm - 11:07 pmCPH-STL
17h 37m1 stop
$888Delta
Find Deal
Tue, Oct 7 - Sun, Oct 12
Delta Logo
8:53 am - 9:55 amSTL-CPH
18h 02m1 stop
Delta Logo
12:30 pm - 11:07 pmCPH-STL
17h 37m1 stop
$893Delta
Find Deal

Everything you should know

Top airlines
Scandinavian Airlines
Cheapest • from $537 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 24% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$537
Typical prices: $694-1003
Scandinavian Airlines
Mon 10/13Mon 10/27
STL - CPH • 1 stop
Cheapest one-way
$359
Multiple Airlines
Sat 11/15
STL - CPH • 3 stops
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We hope you love your trip to Copenhagen!
Booking Insights

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

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

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

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

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

If you are looking for a flight deal from St. Louis to Copenhagen, look for departures on Tuesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Copenhagen, Sunday is the cheapest day to fly and Wednesday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Copenhagen, 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 St. Louis to Copenhagen is February, where tickets cost $659 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,208 and $1,056 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Copenhagen, 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 St. Louis to Copenhagen, you should book around 3 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$359
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from St. Louis to Copenhagen

When to book flights from St. Louis to Copenhagen

Are your dates flexible? Find out the best times to travel from St. Louis to Copenhagen 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 St. Louis to Copenhagen

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

    In the last 3 days, the lowest price for a flight from St. Louis to Copenhagen was $359 for a one-way ticket and $537 for a round-trip.

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

    A passport is required to fly from St. Louis to Copenhagen.

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

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

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

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between St. Louis and Copenhagen, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Copenhagen, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from St. Louis to Copenhagen are Delta and KLM. With an average price for the route of $811 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $960 and an overall rating of 7.8.

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

    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 St. Louis to Copenhagen.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Copenhagen from St. Louis 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 St. Louis to Copenhagen?

    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 Copenhagen with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and CPH 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 St. Louis to Copenhagen?

    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 Copenhagen from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from St. Louis to Copenhagen

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Copenhagen. 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 St. Louis to Copenhagen? 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.
7.9
DeltaOverall score based on 7954 reviews
7.3Food
7.9Comfort
8.2Boarding
7.9Entertainment
8.5Crew
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Only one choice for meal seats had no leg room

I didn't book special seats but the ones I got were great. The food wasn't good but on par with other airlines

Will not recommend SAS for business travel. Food was so-so. Service was very good. First leg was very good. Second leg from Copenhagen to Barcelona was terrible. We paid a LOT for business class and to have seats worse than most coach seats with no entertainment and no charging available for 1/3rd of the whole trip was not acceptable. Very disappointing. I thought they were coming back in the U.S. with style, NOT YET.

I do not have a problem with the airline but both my two suitcases that were supposed to go from Hawaii to Copenhagen didn’t get on the plane in Seattle. I arrive on Monday the 21st at 10:30 in the morning. I did not get my two suitcases before Friday late afternoon that is unacceptable.

Love thiscsirlibe. So civilized and kind. Good food. Good treatment. On time. Excellent communication.

Online check in of SAS is very poor. Even the kiosks at London had system problems. Either it would print boarding tickets or luggage tags. Many other customers had problems . SAS staff was good and helped.

No choice of food. Needed to pay more even for a can of coke!!!

It was great, used to fly them a lot back 20 years ago but since did KLM as my flight route changed, but very happy with my experience and will come again!

The seats were really close together and hard to get comfortable. The food was okay. The cheese was amazing! I loved the cold towels they gave us.

I really enjoyed how clean and big the aircraft was, as well as how friendly the crew was.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

For the price, it was a really good experience. There was no entertainment on board, so I couldn't really rate this, and I didn't order a meal. I appreciated that there was a free glass of wine.

Short flight. Everything was fine except the flight was delayed twice for a total of an hour.

My flight from New York to Canada and Canada to Brisbane was canceled, so I had to take united airlines instead flight from New York to Dubai then layover in Dubai 8 hours then from Dubai to Brisbane it was extremely difficult for me , it was a nightmare flying with Canadian airlines unfortunately.

I found the boarding easy and my seat was very comfortable as I had a lot of leg room. I am not too happy that I no longer have lounge access even though I used to get it with my TD credit card.

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

Real smooth and easy, Real good leg room in coach!

There labor disputes cancelled my flight less than 24 hours before my boarding time but there customer service/website was easy enough to navigate and they rebooked me for no upcharge.

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Like the service. Very hard to communicate or contact when have problems

Very bad, flight was cancelled due to strike and staff was unable to rebook us

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

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