What airlines fly to Copenhagen?

Lufthansa, Air Canada and Delta are the top three most popular airlines that fly to Copenhagen from St. Louis according to our data. Lufthansa 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 7 different airlines that fly to Copenhagen on a routine basis, so you have a few additional options to choose from.

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

British Airways, American 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 Atlanta (ATL) have the shortest average one-way travel time: 12h 42m.

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.

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

Atlanta (ATL) has the shortest average layover time for this route: 3h 06m.

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

Atlanta (ATL) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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 March 2026, there are 7 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.

$324 Cheap Flights from St. Louis to Copenhagen in 2026

Q: 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 $662 to $715. The lowest price recently found on this route was $757.

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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.

11:25 am - 11:45 am

STL

CPH

17h 20m

1 stop

1:55 pm - 11:21 pm

CPH

STL

16h 26m

1 stop

$757Multiple Airlines

Sun, May 10 - Mon, May 25

1:30 pm - 10:15 am

STL

CPH

13h 45m

1 stop

1:35 pm - 11:37 pm

CPH

STL

17h 02m

1 stop

$759Scandinavian Airlines

Mon, Sep 14 - Mon, Sep 21

3:42 pm - 10:15 am

STL

CPH

11h 33m

1 stop

1:35 pm - 11:37 pm

CPH

STL

17h 02m

1 stop

$760Scandinavian Airlines

Mon, Sep 14 - Mon, Sep 21

4:13 pm - 6:45 am

STL

CPH

31h 32m

1 stop

9:00 am - 4:55 pm

CPH

STL

14h 55m

1 stop

$784KLM

Mon, Aug 31 - Tue, Sep 15

11:42 am - 9:15 am

STL

CPH

14h 33m

2 stops

9:00 am - 5:05 pm

CPH

STL

15h 05m

1 stop

$787Multiple Airlines

Tue, May 5 - Tue, May 12

11:42 am - 9:15 am

STL

CPH

14h 33m

2 stops

9:00 am - 5:16 pm

CPH

STL

15h 16m

2 stops

$789Air France

Tue, May 5 - Tue, May 12

7:01 pm - 4:20 pm

STL

CPH

14h 19m

2 stops

1:55 pm - 4:46 pm

CPH

STL

33h 51m

1 stop

$797KLM

Sun, May 10 - Mon, May 25

8:30 pm - 8:55 am

STL

CPH

29h 25m

2 stops

12:45 pm - 12:13 pm

CPH

STL

30h 28m

2 stops

$801United Airlines

Mon, Aug 31 - Tue, Sep 15

1:18 pm - 4:25 pm

STL

CPH

20h 07m

2 stops

7:25 pm - 1:25 pm

CPH

STL

25h 00m

2 stops

$802Lufthansa

Sun, Sep 13 - Mon, Sep 21

6:55 pm - 4:35 pm

STL

CPH

14h 40m

2 stops

6:20 am - 1:25 pm

CPH

STL

14h 05m

1 stop

$806Lufthansa

Mon, Aug 31 - Tue, Sep 15

KLM flights from St. Louis to Copenhagen

Our best KLM deals on St. Louis to Copenhagen flight tickets

KLM

Aug 31

STL4:13 pmLambert-St Louis

31h 32m

1 stop

CPH6:45 amKastrup Copenhagen

Sep 15

CPH9:00 amKastrup Copenhagen

14h 55m

1 stop

STL4:55 pmLambert-St Louis

$784

KLM

May 10

STL7:01 pmLambert-St Louis

14h 19m

2 stops

CPH4:20 pmKastrup Copenhagen

May 25

CPH1:55 pmKastrup Copenhagen

33h 51m

1 stop

STL4:46 pmLambert-St Louis

$797

KLM

Aug 31

STL7:05 pmLambert-St Louis

13h 40m

2 stops

CPH3:45 pmKastrup Copenhagen

Sep 15

CPH9:00 amKastrup Copenhagen

14h 55m

1 stop

STL4:55 pmLambert-St Louis

$811

Air France flights from St. Louis to Copenhagen

Our best Air France deals on St. Louis to Copenhagen flight tickets

Air France

May 5

STL11:42 amLambert-St Louis

14h 33m

2 stops

CPH9:15 amKastrup Copenhagen

May 12

CPH9:00 amKastrup Copenhagen

15h 16m

2 stops

STL5:16 pmLambert-St Louis

$789

Air France

Mar 23

STL5:59 pmLambert-St Louis

14h 41m

2 stops

CPH2:40 pmKastrup Copenhagen

Mar 30

CPH9:00 amKastrup Copenhagen

14h 32m

2 stops

STL4:32 pmLambert-St Louis

$801

Air France

May 10

STL4:25 pmLambert-St Louis

16h 30m

2 stops

CPH3:55 pmKastrup Copenhagen

May 25

CPH1:55 pmKastrup Copenhagen

16h 26m

1 stop

STL11:21 pmLambert-St Louis

$850

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 5/10

11:25 am-11:45 am

1 stop17h 20m

Kastrup Copenhagen

Mon 5/25

1:55 pm-11:21 pm

1 stop16h 26m

$757

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 9/14

1:30 pm-10:15 am

1 stop13h 45m

Kastrup Copenhagen

Mon 9/21

1:35 pm-11:37 pm

1 stop17h 02m

$759

Quickest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 9/14

3:42 pm-10:15 am

1 stop11h 33m

Kastrup Copenhagen

Mon 9/21

1:35 pm-11:37 pm

1 stop17h 02m

$760

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/31

4:13 pm-6:45 am

1 stop31h 32m

Kastrup Copenhagen

Tue 9/15

9:00 am-4:55 pm

1 stop14h 55m

$784

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 5/5

11:42 am-9:15 am

2 stops14h 33m

Kastrup Copenhagen

Tue 5/12

9:00 am-5:05 pm

1 stop15h 05m

$787

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 5/5

11:42 am-9:15 am

2 stops14h 33m

Kastrup Copenhagen

Tue 5/12

9:00 am-5:16 pm

2 stops15h 16m

$789

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 5/10

7:01 pm-4:20 pm

2 stops14h 19m

Kastrup Copenhagen

Mon 5/25

1:55 pm-4:46 pm

1 stop33h 51m

$797

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/31

8:30 pm-8:55 am

2 stops29h 25m

Kastrup Copenhagen

Tue 9/15

12:45 pm-12:13 pm

2 stops30h 28m

$801

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 9/13

1:18 pm-4:25 pm

2 stops20h 07m

Kastrup Copenhagen

Mon 9/21

7:25 pm-1:25 pm

2 stops25h 00m

$802

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/31

6:55 pm-4:35 pm

2 stops14h 40m

Kastrup Copenhagen

Tue 9/15

6:20 am-1:25 pm

1 stop14h 05m

$806

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 typical price of a round-trip flight between St. Louis and Copenhagen?

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 April is also cheap. Prices for this month can be found on momondo for an average of $640.

How far in advance should I book a flight to Copenhagen?

You are more likely to see cheaper flights to Copenhagen from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Copenhagen for around $778 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Copenhagen from St. Louis for as low as $601 on momondo.

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

You could potentially save up to 25% 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

Fastest flight time	11h 33m
Direct flights	None

The fastest flight from St. Louis to Copenhagen takes 11h 33m

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

Search flight deals

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 33m.
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 March 2026, there are 7 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 Lufthansa, making up 21% of the total bookings. Other popular airlines include Air Canada with 19%, Delta with 19%, and United Airlines with 14%.

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
British Airways	PriceFrom $523	Free Cancellation	Rating 6.7 7,813 reviews	Search British Airways flights
Delta	PriceFrom $590	Free Cancellation	Rating 7.9 8,318 reviews	Search Delta flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 9,463 reviews	Search United Airlines flights
American Airlines	PriceFrom $635	Free Cancellation	Rating 7.1 11,486 reviews	Search American Airlines flights
Air Canada	PriceFrom $655	Free Cancellation	Rating 7.1 10,835 reviews	Search Air Canada flights
Scandinavian Airlines	PriceFrom $661	Free Cancellation	Rating 7.3 1,722 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $690	Free Cancellation	Rating 6.8 7,863 reviews	Search Lufthansa flights

Kastrup

Roskilde

Why use momondo?

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 $324

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 8/19. 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?

How far in advance should I book a flight 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

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

Fastest flight time

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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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