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

British Airways is the most popular carrier operating from Lambert-St Louis to Denmark

What airlines fly to Denmark?

Air Canada, United Airlines and Lufthansa are the top three most popular airlines that fly to Denmark from St. Louis according to our data. Air Canada is the first choice among our users, with 29% of people opting to fly with this airline when traveling to Denmark. Keep in mind that there are 5 different airlines that fly to Denmark on a routine basis, so you have a few additional options to choose from.

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 November 2026, there are 5 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.

$341 Cheap Flights from St. Louis to Denmark in 2026/27

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 - 4:19 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

35h 44m2 stops Toronto Pearson Intl Newark

$747United 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 - 10:35 amCPH Kastrup Copenhagen-STL Lambert-St Louis

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

$753Air Canada

Wed, Feb 3 - Fri, Feb 5

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

16h 05m2 stops Toronto Pearson Intl Zurich

10:35 am - 5:09 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

36h 34m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$753Air Canada

Wed, Mar 17 - Fri, Mar 19

10:30 am - 2:10 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

21h 40m2 stops Chicago O'Hare Intl Zurich

7:15 am - 2:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

13h 30m1 stop Frankfurt am Main

$761United Airlines

Mon, Mar 15 - Wed, Mar 17

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

15h 05m2 stops Toronto Pearson Intl Zurich

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

13h 30m1 stop Frankfurt am Main

$780Multiple Airlines

Wed, Feb 10 - Wed, Feb 17

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

$784Lufthansa

Wed, Feb 10 - Wed, Feb 17

4:05 pm - 7:05 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

20h 00m2 stops Toronto Pearson Intl Zurich

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

32h 11m2 stops Frankfurt am Main Toronto Pearson Intl

$787Multiple Airlines

Wed, Feb 10 - Wed, Feb 17

12:00 pm - 1:05 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 05m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

9:55 am - 11:39 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

20h 44m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$809Delta

Tue, Feb 9 - Tue, Feb 16

4:56 pm - 5:00 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

17h 04m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

6:00 am - 8:37 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

21h 37m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$809Delta

Mon, Feb 8 - Wed, Feb 17

5:05 pm - 6:25 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

42h 20m2 stops Chicago O'Hare Intl Frankfurt am Main

10:05 am - 1:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

34h 40m1 stop Frankfurt am Main

$812Lufthansa

Sat, Feb 13 - Tue, Feb 16

Cheap last minute flights

Enter your travel dates to find the best prices.

10:20 am - 5:10 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

23h 50m2 stops Detroit Metropolitan Wayne County Istanbul

6:05 pm - 9:40 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

34h 35m2 stops Istanbul Chicago O'Hare Intl

$1,052Multiple Airlines

Sun, Nov 8 - Sat, Nov 14

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

14h 50m1 stop Frankfurt am Main

6:20 pm - 1:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

26h 25m2 stops Munich Franz Josef Strauss Frankfurt am Main

$1,070Lufthansa

Sun, Nov 8 - Sat, Nov 14

3:40 pm - 6:25 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

19h 45m1 stop Frankfurt am Main

1:10 pm - 1:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

31h 35m2 stops Munich Franz Josef Strauss Frankfurt am Main

$1,090Lufthansa

Sun, Nov 8 - Sat, Nov 14

3:40 pm - 6:25 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

19h 45m1 stop Frankfurt am Main

1:10 pm - 1:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

31h 35m2 stops Munich Franz Josef Strauss Frankfurt am Main

$1,091Lufthansa

Sun, Nov 8 - Sat, Nov 14

3:40 pm - 12:25 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

13h 45m2 stops Frankfurt am Main Munich Franz Josef Strauss

6:20 pm - 1:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

26h 25m2 stops Munich Franz Josef Strauss Frankfurt am Main

$1,091Lufthansa

Sun, Nov 8 - Sat, Nov 14

7:30 am - 5:35 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

27h 05m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

1:10 pm - 9:40 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

39h 30m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$1,095United Airlines

Sun, Nov 8 - Sat, Nov 14

7:30 am - 5:35 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

27h 05m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

1:10 pm - 9:40 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

39h 30m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$1,096United Airlines

Sun, Nov 8 - Sat, Nov 14

6:20 pm - 9:40 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

44h 20m3 stops Boston Logan Intl Hong Kong Intl London Heathrow

6:10 am - 6:17 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

43h 07m3 stops London Heathrow Hong Kong Intl Chicago O'Hare Intl

$13,418Multiple Airlines

Sun, Nov 8 - Sat, Nov 14

6:20 pm - 9:40 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

44h 20m3 stops Boston Logan Intl Hong Kong Intl London Heathrow

6:10 am - 6:17 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

43h 07m3 stops London Heathrow Hong Kong Intl Chicago O'Hare Intl

$13,421Multiple Airlines

Sun, Nov 8 - Sat, Nov 14

6:20 pm - 9:40 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

44h 20m3 stops Boston Logan Intl Hong Kong Intl London Heathrow

6:10 am - 6:17 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

43h 07m3 stops London Heathrow Hong Kong Intl Chicago O'Hare Intl

$13,422Multiple Airlines

Sun, Nov 8 - Sat, Nov 14

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Lufthansa flights from St. Louis to Denmark

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

Lufthansa

Mar 16

STL7:04 pmLambert-St Louis

22h 06m

2 stops

CPH11:10 pmKastrup Copenhagen

Mar 22

CPH6:20 pmKastrup Copenhagen

34h 59m

2 stops

STL11:19 pmLambert-St Louis

$827

Lufthansa

Mar 14

STL4:40 pmLambert-St Louis

19h 45m

1 stop

CPH6:25 pmKastrup Copenhagen

Mar 22

CPH6:20 pmKastrup Copenhagen

34h 59m

2 stops

STL11:19 pmLambert-St Louis

$834

Lufthansa

Mar 14

STL4:40 pmLambert-St Louis

19h 45m

1 stop

CPH6:25 pmKastrup Copenhagen

Mar 16

CPH7:10 pmKastrup Copenhagen

25h 35m

1 stop

STL2:45 pmLambert-St Louis

$845

Delta flights from St. Louis to Denmark

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

Delta

Mar 11

STL10:00 amLambert-St Louis

16h 10m

2 stops

CPH9:10 amKastrup Copenhagen

Mar 16

CPH6:00 amKastrup Copenhagen

20h 37m

2 stops

STL8:37 pmLambert-St Louis

$858

Delta

Mar 11

STL10:00 amLambert-St Louis

16h 10m

2 stops

CPH9:10 amKastrup Copenhagen

Mar 18

CPH9:55 amKastrup Copenhagen

16h 42m

2 stops

STL8:37 pmLambert-St Louis

$889

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-4:19 pm

2 stops35h 44m

$747

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-10:35 am

2 stops30h 00m

$753

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 3/17

4:05 pm-2:10 pm

2 stops16h 05m

Kastrup Copenhagen

Fri 3/19

10:35 am-5:09 pm

2 stops36h 34m

$753

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 3/15

10:30 am-2:10 pm

2 stops21h 40m

Kastrup Copenhagen

Wed 3/17

7:15 am-2:45 pm

1 stop13h 30m

$761

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 2/10

4:05 pm-2:10 pm

2 stops15h 05m

Kastrup Copenhagen

Wed 2/17

7:15 am-1:45 pm

1 stop13h 30m

$780

Quickest round-trip

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 2/10

3:40 pm-12:00 pm

1 stop13h 20m

Kastrup Copenhagen

Wed 2/17

7:15 am-1:45 pm

1 stop13h 30m

$784

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 2/10

4:05 pm-7:05 pm

2 stops20h 00m

Kastrup Copenhagen

Wed 2/17

2:15 pm-3:26 pm

2 stops32h 11m

$787

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Tue 2/9

12:00 pm-1:05 pm

2 stops18h 05m

Kastrup Copenhagen

Tue 2/16

9:55 am-11:39 pm

2 stops20h 44m

$809

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 2/8

4:56 pm-5:00 pm

2 stops17h 04m

Kastrup Copenhagen

Wed 2/17

6:00 am-8:37 pm

2 stops21h 37m

$809

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sat 2/13

5:05 pm-6:25 pm

2 stops42h 20m

Kastrup Copenhagen

Tue 2/16

10:05 am-1:45 pm

1 stop34h 40m

$812

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 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, October 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 $512. If you aren’t able to travel to Denmark 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 $680.

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

You could potentially save up to 3% 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	$341
Fastest flight time	13h 45m
Direct flights	None

The best one-way flight to Denmark from St. Louis in the past 72 hours is $341. The best round-trip flight deal from St. Louis to Denmark found on momondo in the last 72 hours is $747.

The fastest flight from St. Louis to Denmark takes 13h 45m

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 November 2026, there are 5 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 $250	Free Cancellation	Rating 7.8 8,697 reviews	Search Delta flights
United Airlines	PriceFrom $654	Free Cancellation	Rating 7.3 10,463 reviews	Search United Airlines flights
Lufthansa	PriceFrom $715	Free Cancellation	Rating 6.8 8,299 reviews	Search Lufthansa flights
Scandinavian Airlines	PriceFrom $756	Free Cancellation	Rating 7.4 2,030 reviews	Search Scandinavian Airlines flights
Air Canada	PriceFrom $761	Free Cancellation	Rating 7.1 11,846 reviews	Search Air Canada 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 in Denmark

Flights to Copenhagenfrom $438

Flights to Billundfrom $557

Flights to Aalborgfrom $587

Flights to Aarhusfrom $618

Flights to Sønderborgfrom $835

Flights to Karupfrom $1,271

Cheap flights from St. Louis to Denmark from $341

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 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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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