Which airport is the most popular layover for flights between St. Louis and Copenhagen?

Atlanta (ATL) was the most common stop: 42% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from St. Louis to Copenhagen?

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 10h 55m.

What airlines fly to Copenhagen?

Air Canada, United Airlines and Lufthansa are the top three most popular airlines that fly to Copenhagen from St. Louis according to our data. Air Canada is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Copenhagen. Keep in mind that there are 5 different airlines that fly to Copenhagen on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from St. Louis to Copenhagen?

Philadelphia (PHL) has the shortest average layover time for this route: 2h 33m.

Which layover airport offers the lowest fares from St. Louis to Copenhagen?

Flights via Atlanta (ATL) offer the lowest average round-trip price of $1,004.

What is the cheapest airline that flies from Lambert-St Louis to Kastrup Copenhagen?

British Airways and Lufthansa are the most popular carriers operating from Lambert-St Louis to Kastrup Copenhagen

When did momondo last update prices for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport?

Prices for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport?

As of November 2026, there are 5 operators available to choose from for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport.

How old do you have to be to fly from Lambert-St Louis Airport to Kastrup Copenhagen Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Kastrup Copenhagen Airport.

What documentation or ID do you need to fly to Kastrup Copenhagen Airport?

The travel and health documents required for your trip to Kastrup Copenhagen Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kastrup Copenhagen Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$338 Cheap Flights from St. Louis to Copenhagen in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Copenhagen

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:30 pm - 10:30 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

14h 00m1 stop Atlanta Hartsfield-Jackson

2:10 pm - 11:39 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

16h 29m1 stop Atlanta Hartsfield-Jackson

$733Scandinavian Airlines

Wed, Apr 28 - Mon, May 3

4:05 pm - 10:50 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

11h 45m1 stop Toronto Pearson Intl

6:20 am - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

14h 05m1 stop Frankfurt am Main

$766Multiple Airlines

Mon, Apr 12 - Tue, Apr 20

9:35 pm - 8:00 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 25m1 stop London Heathrow

8:45 am - 7:30 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

17h 45m2 stops Helsinki-Vantaa Dallas/Fort Worth

$771British Airways

Wed, Apr 14 - Wed, Apr 21

5:05 pm - 11:25 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

35h 20m2 stops Chicago O'Hare Intl Brussels Bruxelles-National

11:35 am - 4:56 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

36h 21m2 stops Toronto Pearson Intl Newark

$795United Airlines

Sat, Feb 27 - Wed, Mar 3

10:55 am - 11:25 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

17h 30m2 stops Chicago O'Hare Intl Brussels Bruxelles-National

2:15 pm - 3:26 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

32h 11m2 stops Frankfurt am Main Toronto Pearson Intl

$808United Airlines

Sun, Feb 28 - Thu, Mar 4

3:40 pm - 1:30 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

14h 50m1 stop Frankfurt am Main

7:15 am - 1:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

13h 30m1 stop Frankfurt am Main

$909Lufthansa

Sun, Jan 3 - Sun, Jan 10

3:40 pm - 12:00 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

13h 20m1 stop Frankfurt am Main

7:15 am - 1:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

13h 30m1 stop Frankfurt am Main

$994Lufthansa

Wed, Dec 2 - Wed, Dec 9

10:45 am - 10:20 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

16h 35m2 stops Chicago O'Hare Intl Toronto Pearson Intl

11:35 am - 10:35 amCPH Kastrup Copenhagen-STL Lambert-St Louis

30h 00m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$995Air Canada

Thu, Dec 24 - Fri, Jan 8

9:35 am - 10:20 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

17h 45m2 stops Chicago O'Hare Intl Toronto Pearson Intl

11:35 am - 11:20 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

18h 45m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$1,018Air Canada

Thu, Dec 24 - Wed, Jan 6

3:48 pm - 10:30 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

11h 42m1 stop Atlanta Hartsfield-Jackson

1:50 pm - 11:26 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

16h 36m1 stop Atlanta Hartsfield-Jackson

$1,513Scandinavian Airlines

Wed, Dec 23 - Thu, Jan 7

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Scandinavian Airlines flights from St. Louis to Copenhagen

Our best Scandinavian Airlines deals on St. Louis to Copenhagen flight tickets

Scandinavian Airlines

Apr 28

STL1:30 pmLambert-St Louis

14h 00m

1 stop

CPH10:30 amKastrup Copenhagen

May 3

CPH2:10 pmKastrup Copenhagen

16h 29m

1 stop

STL11:39 pmLambert-St Louis

$733

Scandinavian Airlines

Nov 23

STL2:31 pmLambert-St Louis

12h 59m

1 stop

CPH10:30 amKastrup Copenhagen

Dec 2

CPH1:50 pmKastrup Copenhagen

14h 48m

1 stop

STL9:38 pmLambert-St Louis

$2,481

British Airways flights from St. Louis to Copenhagen

Our best British Airways deals on St. Louis to Copenhagen flight tickets

British Airways

Apr 14

STL9:35 pmLambert-St Louis

15h 25m

1 stop

CPH8:00 pmKastrup Copenhagen

Apr 21

CPH8:45 amKastrup Copenhagen

17h 45m

2 stops

STL7:30 pmLambert-St Louis

$771

British Airways

Apr 12

STL5:21 pmLambert-St Louis

16h 29m

2 stops

CPH4:50 pmKastrup Copenhagen

Apr 20

CPH8:45 amKastrup Copenhagen

17h 45m

2 stops

STL7:30 pmLambert-St Louis

$775

British Airways

Apr 14

STL9:35 pmLambert-St Louis

15h 25m

1 stop

CPH8:00 pmKastrup Copenhagen

Apr 21

CPH7:20 amKastrup Copenhagen

19h 10m

1 stop

STL7:30 pmLambert-St Louis

$776

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 4/28

1:30 pm-10:30 am

1 stop14h 00m

Kastrup Copenhagen

Mon 5/3

2:10 pm-11:39 pm

1 stop16h 29m

$733

Quickest round-trip

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 4/12

4:05 pm-10:50 am

1 stop11h 45m

Kastrup Copenhagen

Tue 4/20

6:20 am-1:25 pm

1 stop14h 05m

$766

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 4/14

9:35 pm-8:00 pm

1 stop15h 25m

Kastrup Copenhagen

Wed 4/21

8:45 am-7:30 pm

2 stops17h 45m

$771

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sat 2/27

5:05 pm-11:25 am

2 stops35h 20m

Kastrup Copenhagen

Wed 3/3

11:35 am-4:56 pm

2 stops36h 21m

$795

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sun 2/28

10:55 am-11:25 am

2 stops17h 30m

Kastrup Copenhagen

Thu 3/4

2:15 pm-3:26 pm

2 stops32h 11m

$808

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sun 1/3

3:40 pm-1:30 pm

1 stop14h 50m

Kastrup Copenhagen

Sun 1/10

7:15 am-1:45 pm

1 stop13h 30m

$909

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 12/2

3:40 pm-12:00 pm

1 stop13h 20m

Kastrup Copenhagen

Wed 12/9

7:15 am-1:45 pm

1 stop13h 30m

$994

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Thu 12/24

10:45 am-10:20 am

2 stops16h 35m

Kastrup Copenhagen

Fri 1/8

11:35 am-10:35 am

2 stops30h 00m

$995

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Thu 12/24

9:35 am-10:20 am

2 stops17h 45m

Kastrup Copenhagen

Wed 1/6

11:35 am-11:20 pm

2 stops18h 45m

$1,018

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 12/23

3:48 pm-10:30 am

1 stop11h 42m

Kastrup Copenhagen

Thu 1/7

1:50 pm-11:26 pm

1 stop16h 36m

$1,513

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Copenhagen

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest month to fly to Copenhagen?

The cheapest month to fly to Copenhagen from St. Louis is in October. Flight prices, which tend to average around $512, are often lower during this time because this is during the off-season. If you aren’t able to travel to Copenhagen during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $788.

Can stopping save me money on St. Louis to Copenhagen flights?

You could potentially save up to 3% on your flight if you consider stops on a St. Louis to Copenhagen flight.

When to book flights from St. Louis to Copenhagen

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Copenhagen according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Copenhagen (STL to CPH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Copenhagen

Best Price Found	$338
Fastest flight time	11h 15m
Direct flights	None

The best one-way flight to Copenhagen from St. Louis in the past 72 hours is $338. The best round-trip flight deal from St. Louis to Copenhagen found on momondo in the last 72 hours is $733.

The fastest flight from St. Louis to Copenhagen takes 11h 15m

There are no direct flights from St. Louis to Copenhagen. There are no popular flight routes from St. Louis to Copenhagen.

Search flight deals

Frequently asked questions about flying from St. Louis to Copenhagen

How far is Lambert-St Louis to Kastrup Copenhagen by plane?
The straight-line distance from Lambert-St Louis to Kastrup Copenhagen is 4507.7 mi. In terms of flight time, this usually takes a little over 11h 15m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport?
Prices for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport?
As of November 2026, there are 5 operators available to choose from for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Kastrup Copenhagen Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Kastrup Copenhagen Airport.
What documentation or ID do you need to fly to Kastrup Copenhagen Airport?
The travel and health documents required for your trip to Kastrup Copenhagen Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kastrup Copenhagen Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Copenhagen?
Based on momondo bookings for flights between St. Louis and Copenhagen, the leading airline is Air Canada, making up 25% of the total bookings. Other popular airlines include United Airlines with 20%, Lufthansa with 19%, and Scandinavian Airlines with 19%.

Best airlines flying from St. Louis to Copenhagen

Compare and see reviews for airlines that fly from St. Louis to Copenhagen with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $250	Free Cancellation	Rating 7.8 8,717 reviews	Search Delta flights
Lufthansa	PriceFrom $715	Free Cancellation	Rating 6.8 8,295 reviews	Search Lufthansa flights
Air Canada	PriceFrom $761	Free Cancellation	Rating 7.1 11,898 reviews	Search Air Canada flights
Scandinavian Airlines	PriceFrom $769	Free Cancellation	Rating 7.5 2,034 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $788	Free Cancellation	Rating 7.3 10,492 reviews	Search United Airlines flights

Kastrup

Roskilde

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Why should I use momondo to find a flight deal from St. Louis to Copenhagen?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Copenhagen. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Copenhagen with flexible booking policies on momondo?

Flights from St. Louis to Copenhagen with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Copenhagen?

Once all potential St. Louis to Copenhagen flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Copenhagen right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Copenhagen flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from St. Louis to Copenhagen from $338

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Copenhagen departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Scandinavian Airlines flights from St. Louis to Copenhagen

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How to get the cheapest flight ticket from St. Louis to Copenhagen

What is the cheapest month to fly to Copenhagen?

Can stopping save me money on St. Louis to Copenhagen flights?

What is the cheapest airline that flies from Lambert-St Louis to Kastrup Copenhagen?

What airlines fly to Copenhagen?

Which airport is the most popular layover for flights between St. Louis and Copenhagen?

Which layover airport offers the lowest fares from St. Louis to Copenhagen?

Which layover airport has the shortest travel time from St. Louis to Copenhagen?

Which layover airport has the shortest connection time from St. Louis to Copenhagen?

When to book flights from St. Louis to Copenhagen

Cheap St. Louis to Copenhagen (STL to CPH) flight deals and tips

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Frequently asked questions about flying from St. Louis to Copenhagen

Best airlines flying from St. Louis to Copenhagen

Compare and see reviews for airlines that fly from St. Louis to Copenhagen with momondo

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An easier way to manage your Copenhagen trip

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List of cabin classes available on flights landing in Copenhagen. Availability may vary depending on flight origin and airline.

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