What airlines fly to Denmark?

Lufthansa, Delta and United Airlines are the top three most popular airlines that fly to Denmark 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 Denmark. Keep in mind that there are 6 different airlines that fly to Denmark 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 Denmark?

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

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

Prices for flights from Lambert-St Louis Airport to Denmark were last updated today.

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

As of September 2026, there are 6 operators available to choose from for flights from Lambert-St Louis Airport to Denmark.

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

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 Denmark.

What documentation or ID do you need to fly to Denmark?

The necessary travel and health documents for your Denmark trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$450 Cheap Flights from St. Louis to Denmark in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Denmark

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 - 4:13 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

35h 38m2 stops Toronto Pearson Intl Newark

$780United 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 - 12:13 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

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

$780United 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 - 2:28 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

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

$791Air Canada

Wed, Feb 3 - Fri, Feb 5

1:29 pm - 10:50 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

14h 21m2 stops Chicago O'Hare Intl Toronto Pearson Intl

11:35 am - 11:24 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

18h 49m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$815Air Canada

Mon, Oct 19 - Wed, Nov 4

8:55 am - 10:50 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 55m1 stop Toronto Pearson Intl

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

13h 30m1 stop Frankfurt am Main

$831Multiple Airlines

Mon, Oct 19 - Wed, Nov 4

12:10 pm - 10:50 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

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

13h 30m1 stop Frankfurt am Main

$844Multiple Airlines

Mon, Oct 19 - Wed, Nov 4

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

$849Lufthansa

Mon, Nov 9 - Wed, Nov 18

5:27 pm - 4:50 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

16h 23m2 stops Chicago O'Hare Intl London Heathrow

8:55 am - 8:19 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

18h 24m2 stops Helsinki-Vantaa Dallas/Fort Worth

$858American Airlines

Mon, Oct 19 - Wed, Nov 4

7:00 am - 6:45 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

16h 45m1 stop New York LaGuardia

9:55 am - 9:59 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

19h 04m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$859Delta

Mon, Oct 19 - Wed, Nov 4

3:30 pm - 6:35 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

20h 05m1 stop Frankfurt am Main

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

14h 05m1 stop Frankfurt am Main

$914Lufthansa

Tue, Oct 13 - Tue, Oct 20

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 am - 1:55 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

23h 55m2 stops Newark Frankfurt am Main

12:15 pm - 7:11 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

37h 56m2 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Dulles Intl

$890United Airlines

Wed, Sep 2 - Fri, Sep 4

2:40 pm - 10:50 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

13h 10m1 stop Toronto Pearson Intl

6:30 am - 6:42 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

19h 12m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

$910Multiple Airlines

Wed, Sep 2 - Fri, Sep 4

2:40 pm - 10:50 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

13h 10m1 stop Toronto Pearson Intl

6:30 am - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

13h 55m1 stop Frankfurt am Main

$915Multiple Airlines

Wed, Sep 2 - Fri, Sep 4

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

59h 00m2 stops Newark Toronto Pearson Intl

12:45 pm - 12:03 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

30h 18m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$939United Airlines

Sat, Sep 5 - Fri, Sep 11

8:55 am - 10:50 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 55m1 stop Toronto Pearson Intl

12:45 pm - 2:00 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

32h 15m1 stop Toronto Pearson Intl

$958Multiple Airlines

Thu, Sep 3 - Thu, Sep 10

7:25 am - 5:20 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

26h 55m2 stops Chicago O'Hare Intl Brussels Bruxelles-National

12:45 pm - 10:12 amCPH Kastrup Copenhagen-STL Lambert-St Louis

28h 27m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$983United Airlines

Thu, Sep 3 - Thu, Sep 10

8:55 am - 10:50 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 55m1 stop Toronto Pearson Intl

6:20 am - 6:41 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

19h 21m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$995Air Canada

Thu, Sep 3 - Tue, Sep 8

6:00 am - 6:45 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

17h 45m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

6:00 am - 3:14 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

16h 14m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$1,003Delta

Thu, Sep 3 - Tue, Sep 8

2:10 pm - 3:45 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 35m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

6:00 am - 11:42 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

24h 42m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,114Delta

Thu, Sep 3 - Tue, Sep 8

3:30 pm - 6:00 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

19h 30m1 stop Frankfurt am Main

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

14h 05m1 stop Frankfurt am Main

$5,575Lufthansa

Fri, Sep 4 - Sun, Sep 6

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Lufthansa flights from St. Louis to Denmark

Our best Lufthansa deals on St. Louis to Denmark flight tickets

Lufthansa

Nov 9

STL6:50 pmLambert-St Louis

15h 45m

2 stops

CPH5:35 pmKastrup Copenhagen

Nov 18

CPH7:15 amKastrup Copenhagen

13h 30m

1 stop

STL1:45 pmLambert-St Louis

$849

Lufthansa

Oct 13

STL3:30 pmLambert-St Louis

20h 05m

1 stop

CPH6:35 pmKastrup Copenhagen

Oct 20

CPH6:20 amKastrup Copenhagen

14h 05m

1 stop

STL1:25 pmLambert-St Louis

$914

Lufthansa

Nov 8

STL6:50 pmLambert-St Louis

15h 45m

2 stops

CPH5:35 pmKastrup Copenhagen

Nov 14

CPH10:05 amKastrup Copenhagen

34h 40m

1 stop

STL1:45 pmLambert-St Louis

$923

Delta flights from St. Louis to Denmark

Our best Delta deals on St. Louis to Denmark flight tickets

Delta

Oct 19

STL7:00 amLambert-St Louis

16h 45m

1 stop

CPH6:45 amKastrup Copenhagen

Nov 4

CPH9:55 amKastrup Copenhagen

19h 04m

2 stops

STL9:59 pmLambert-St Louis

$859

Delta

Nov 10

STL12:28 pmLambert-St Louis

17h 42m

2 stops

CPH1:10 pmKastrup Copenhagen

Nov 17

CPH2:15 pmKastrup Copenhagen

16h 41m

2 stops

STL11:56 pmLambert-St Louis

$863

Delta

Dec 14

STL12:36 pmLambert-St Louis

17h 34m

2 stops

CPH1:10 pmKastrup Copenhagen

Dec 22

CPH9:55 amKastrup Copenhagen

20h 41m

2 stops

STL11:36 pmLambert-St Louis

$896

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-4:13 pm

2 stops35h 38m

$780

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-12:13 pm

2 stops31h 38m

$780

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-2:28 pm

2 stops33h 53m

$791

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 10/19

1:29 pm-10:50 am

2 stops14h 21m

Kastrup Copenhagen

Wed 11/4

11:35 am-11:24 pm

2 stops18h 49m

$815

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 10/19

8:55 am-10:50 am

1 stop18h 55m

Kastrup Copenhagen

Wed 11/4

7:15 am-1:45 pm

1 stop13h 30m

$831

Quickest round-trip

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 10/19

12:10 pm-10:50 am

2 stops15h 40m

Kastrup Copenhagen

Wed 11/4

7:15 am-1:45 pm

1 stop13h 30m

$844

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

$849

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 10/19

5:27 pm-4:50 pm

2 stops16h 23m

Kastrup Copenhagen

Wed 11/4

8:55 am-8:19 pm

2 stops18h 24m

$858

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 10/19

7:00 am-6:45 am

1 stop16h 45m

Kastrup Copenhagen

Wed 11/4

9:55 am-9:59 pm

2 stops19h 04m

$859

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Tue 10/13

3:30 pm-6:35 pm

1 stop20h 05m

Kastrup Copenhagen

Tue 10/20

6:20 am-1:25 pm

1 stop14h 05m

$914

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

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

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

What is the cheapest month to fly to Denmark?

In general, February is the cheapest month to fly from St. Louis to Denmark. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $523. If you aren’t able to travel to Denmark 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 Denmark flights?

You could potentially save up to 24% on your flight if you consider stops on a St. Louis to Denmark flight.

Cheap St. Louis to Denmark flight deals and tips

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

Best Price Found	$450
Fastest flight time	11h 15m
Direct flights	None

The best one-way flight to Denmark from St. Louis in the past 72 hours is $450. The best round-trip flight deal from St. Louis to Denmark found on momondo in the last 72 hours is $780.

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

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

Search flight deals

Frequently asked questions about flying from St. Louis to Denmark

When did momondo last update prices for flights from Lambert-St Louis Airport to Denmark?
Prices for flights from Lambert-St Louis Airport to Denmark were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Denmark?
As of September 2026, there are 6 operators available to choose from for flights from Lambert-St Louis Airport to Denmark.
How old do you have to be to fly from Lambert-St Louis Airport to Denmark?
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 Denmark.
What documentation or ID do you need to fly to Denmark?
The necessary travel and health documents for your Denmark trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Denmark

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $406	Free Cancellation	Rating 7.8 8,543 reviews	Search Delta flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 10,156 reviews	Search United Airlines flights
Lufthansa	PriceFrom $690	Free Cancellation	Rating 6.8 8,232 reviews	Search Lufthansa flights
American Airlines	PriceFrom $693	Free Cancellation	Rating 7.1 12,021 reviews	Search American Airlines flights
Air Canada	PriceFrom $734	Free Cancellation	Rating 7.1 11,571 reviews	Search Air Canada flights
Scandinavian Airlines	PriceFrom $769	Free Cancellation	Rating 7.4 1,971 reviews	Search Scandinavian Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Denmark for you.

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

Yes. momondo allows you to filter the results for St. Louis to Denmark flights to just show those with flexible booking policies.

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

Once you have performed a search for St. Louis to Denmark flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Denmark from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Denmark trip

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Popular cities

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Other flights to Denmark

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Cabin classes

Complete your trip

Feeling lucky

Popular cities in Denmark

Flights to Copenhagenfrom $432

Flights to Billundfrom $512

Flights to Aalborgfrom $524

Flights to Aarhusfrom $539

Flights to Sønderborgfrom $1,090

Flights to Karupfrom $1,271

Cheap flights from St. Louis to Denmark from $450

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 Denmark departing on 9/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from St. Louis to Denmark

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Cheap one-way flights

Cheap last minute flights

Big names and deals

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Trusted and free

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Lufthansa flights from St. Louis to Denmark

Our best Lufthansa deals on St. Louis to Denmark flight tickets

Delta flights from St. Louis to Denmark

Our best Delta deals on St. Louis to Denmark flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Denmark that are best for you.

See travel insights to Denmark from

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

What is the cheapest month to fly to Denmark?

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

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

What airlines fly to Denmark?

Cheap St. Louis to Denmark flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Denmark

Best airlines flying from St. Louis to Denmark

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

Why use momondo?

An easier way to manage your Denmark trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Denmark

Popular cities in Denmark

Popular flights according to clicks in the last 7 days on momondo

St. Louis flight routes

According to popular flight searches on momondo this year

Denmark flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Denmark

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Denmark

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

Complete your trip to Denmark

Explore popular destinations other users love

According to popular flight searches on momondo this year