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

United Airlines and Air Canada are the most popular carriers operating from Lambert-St Louis to Kastrup Copenhagen

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.

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

Toronto (YYZ) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Copenhagen?

United Airlines, Air Canada and Lufthansa are the top three most popular airlines that fly to Copenhagen from St. Louis according to our data. United Airlines is the first choice among our users, with 28% 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 London (LHR) offer the lowest average round-trip price of $655.

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 September 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.

$336 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.

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

14h 50m1 stop Frankfurt am Main

11:35 am - 2:28 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

33h 53m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$738United Airlines

Wed, Feb 3 - Fri, Feb 5

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

14h 50m1 stop Frankfurt am Main

11:35 am - 4:13 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

35h 38m2 stops Toronto Pearson Intl Newark

$738United Airlines

Wed, Feb 3 - Fri, Feb 5

4:05 pm - 2:10 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 05m2 stops Toronto Pearson Intl Zurich

11:35 am - 12:13 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

31h 38m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$743Air Canada

Wed, Feb 3 - Fri, Feb 5

6:44 pm - 12:00 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

34h 16m3 stops Atlanta Hartsfield-Jackson Orlando Reykjavik Keflavik Intl

12:55 pm - 11:19 amCPH Kastrup Copenhagen-STL Lambert-St Louis

29h 24m3 stops Reykjavik Keflavik Intl Orlando Dallas/Fort Worth

$749Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

2:31 pm - 10:30 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

12h 59m1 stop Atlanta Hartsfield-Jackson

1:50 pm - 9:42 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

14h 52m1 stop Atlanta Hartsfield-Jackson

$802Scandinavian Airlines

Wed, Nov 11 - Wed, Nov 18

4:05 pm - 10:20 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

11h 15m1 stop Toronto Pearson Intl

9:40 am - 6:21 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

15h 41m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

$819Multiple Airlines

Sat, Jan 16 - Thu, May 13

6:50 pm - 5:35 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 45m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

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

13h 30m1 stop Frankfurt am Main

$859Lufthansa

Mon, Nov 9 - Wed, Nov 18

6:50 pm - 5:35 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 45m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

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

13h 30m1 stop Frankfurt am Main

$860Lufthansa

Mon, Nov 9 - Wed, Nov 18

2:33 pm - 10:30 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

12h 57m1 stop Atlanta Hartsfield-Jackson

1:50 pm - 9:38 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

14h 48m1 stop Atlanta Hartsfield-Jackson

$902Scandinavian Airlines

Fri, Dec 4 - Mon, Dec 14

7:30 am - 10:20 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

19h 50m2 stops Chicago O'Hare Intl Toronto Pearson Intl

11:35 am - 3:26 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

34h 51m1 stop Toronto Pearson Intl

$966Air Canada

Sat, Nov 14 - Sat, Nov 21

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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

Nov 11

STL2:31 pmLambert-St Louis

12h 59m

1 stop

CPH10:30 amKastrup Copenhagen

Nov 18

CPH1:50 pmKastrup Copenhagen

14h 52m

1 stop

STL9:42 pmLambert-St Louis

$802

Scandinavian Airlines

Dec 4

STL2:33 pmLambert-St Louis

12h 57m

1 stop

CPH10:30 amKastrup Copenhagen

Dec 14

CPH1:50 pmKastrup Copenhagen

14h 48m

1 stop

STL9:38 pmLambert-St Louis

$902

Scandinavian Airlines

Nov 9

STL12:29 pmLambert-St Louis

15h 01m

1 stop

CPH10:30 amKastrup Copenhagen

Nov 18

CPH1:50 pmKastrup Copenhagen

14h 52m

1 stop

STL9:42 pmLambert-St Louis

$1,056

British Airways flights from St. Louis to Copenhagen

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

British Airways

Jan 24

STL6:00 pmLambert-St Louis

16h 50m

2 stops

CPH5:50 pmKastrup Copenhagen

Jun 30

CPH10:20 amKastrup Copenhagen

20h 14m

2 stops

STL11:34 pmLambert-St Louis

$878

British Airways

Jan 24

STL5:49 pmLambert-St Louis

17h 01m

2 stops

CPH5:50 pmKastrup Copenhagen

Jun 30

CPH4:20 pmKastrup Copenhagen

34h 10m

1 stop

STL7:30 pmLambert-St Louis

$898

British Airways

Dec 13

STL5:38 pmLambert-St Louis

19h 02m

2 stops

CPH7:40 pmKastrup Copenhagen

Jan 5

CPH3:45 pmKastrup Copenhagen

33h 55m

2 stops

STL6:40 pmLambert-St Louis

$1,022

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 2/3

3:40 pm-1:30 pm

1 stop14h 50m

Kastrup Copenhagen

Fri 2/5

11:35 am-2:28 pm

2 stops33h 53m

$738

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 2/3

3:40 pm-1:30 pm

1 stop14h 50m

Kastrup Copenhagen

Fri 2/5

11:35 am-4:13 pm

2 stops35h 38m

$738

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 2/3

4:05 pm-2:10 pm

2 stops15h 05m

Kastrup Copenhagen

Fri 2/5

11:35 am-12:13 pm

2 stops31h 38m

$743

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 11/11

6:44 pm-12:00 pm

3 stops34h 16m

Kastrup Copenhagen

Wed 11/18

12:55 pm-11:19 am

3 stops29h 24m

$749

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 11/11

2:31 pm-10:30 am

1 stop12h 59m

Kastrup Copenhagen

Wed 11/18

1:50 pm-9:42 pm

1 stop14h 52m

$802

Quickest round-trip

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sat 1/16

4:05 pm-10:20 am

1 stop11h 15m

Kastrup Copenhagen

Thu 5/13

9:40 am-6:21 pm

2 stops15h 41m

$819

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 11/9

6:50 pm-5:35 pm

2 stops15h 45m

Kastrup Copenhagen

Wed 11/18

7:15 am-1:45 pm

1 stop13h 30m

$859

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 11/9

6:50 pm-5:35 pm

2 stops15h 45m

Kastrup Copenhagen

Wed 11/18

7:15 am-1:45 pm

1 stop13h 30m

$860

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Fri 12/4

2:33 pm-10:30 am

1 stop12h 57m

Kastrup Copenhagen

Mon 12/14

1:50 pm-9:38 pm

1 stop14h 48m

$902

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sat 11/14

7:30 am-10:20 am

2 stops19h 50m

Kastrup Copenhagen

Sat 11/21

11:35 am-3:26 pm

1 stop34h 51m

$966

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 typical price of a round-trip flight between St. Louis and Copenhagen?

Prices are currently high for flights on this route.

Typical prices usually range from $512 to $724.
The lowest price recently found on this route was $749.

What is the cheapest month to fly to Copenhagen?

The cheapest month to fly to Copenhagen from St. Louis is in February. Flight prices, which tend to average around $523, 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 February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $680.

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

You could potentially save up to 32% 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	$336
Fastest flight time	11h 00m
Direct flights	None

The best one-way flight to Copenhagen from St. Louis in the past 72 hours is $336. The best round-trip flight deal from St. Louis to Copenhagen found on momondo in the last 72 hours is $738.

The fastest flight from St. Louis to Copenhagen takes 11h 00m

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 00m.
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 September 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 United Airlines, making up 25% of the total bookings. Other popular airlines include Air Canada with 24%, Lufthansa with 21%, and Delta 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 $406	Free Cancellation	Rating 7.8 8,615 reviews	Search Delta flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 10,270 reviews	Search United Airlines flights
Lufthansa	PriceFrom $690	Free Cancellation	Rating 6.8 8,251 reviews	Search Lufthansa flights
Air Canada	PriceFrom $761	Free Cancellation	Rating 7.1 11,707 reviews	Search Air Canada flights
Scandinavian Airlines	PriceFrom $769	Free Cancellation	Rating 7.4 2,001 reviews	Search Scandinavian Airlines flights

Kastrup

Roskilde

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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 $336

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

What is the typical price of a round-trip flight between St. Louis and 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

Best Price Found

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Direct flights

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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