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

British Airways and United Airlines are the most popular carriers 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 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.

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.

$320 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.

9:04 am - 10:50 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 46m2 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

$603Air Canada

Mon, Oct 19 - Wed, Nov 4

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

13h 10m1 stop 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

$603Air Canada

Mon, Oct 19 - Wed, Nov 4

5:29 pm - 5:25 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

16h 56m2 stops Chicago O'Hare Intl London Heathrow

8:55 am - 8:20 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

18h 25m2 stops Helsinki-Vantaa Dallas/Fort Worth

$681American Airlines

Mon, Nov 9 - Wed, Nov 18

2:40 pm - 10:45 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

25h 05m2 stops Toronto Pearson Intl Dublin

5:35 pm - 3:26 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

28h 51m3 stops Amsterdam Schiphol Dublin Toronto Pearson Intl

$702Multiple Airlines

Mon, Oct 19 - Wed, Nov 4

6:00 am - 2:10 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

26h 10m2 stops Chicago O'Hare Intl Zurich

11:35 am - 10:26 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

41h 51m2 stops Toronto Pearson Intl Houston George Bush Intcntl

$728United Airlines

Sun, Oct 25 - Sun, Nov 1

2:40 pm - 11:20 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

25h 40m3 stops Toronto Pearson Intl Dublin Oslo Gardermoen

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

32h 11m3 stops Amsterdam Schiphol Dublin Toronto Pearson Intl

$733Multiple 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

12:40 pm - 1:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

32h 05m1 stop Frankfurt am Main

$755Lufthansa

Sun, Nov 8 - Sat, Nov 14

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

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

7:10 pm - 1:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

25h 35m1 stop Frankfurt am Main

$756Lufthansa

Sun, Nov 8 - Sat, Nov 14

4:40 pm - 1:30 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

14h 50m1 stop Frankfurt am Main

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

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

$772United Airlines

Sun, Oct 25 - Sun, Nov 1

10:00 am - 6:45 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

13h 45m1 stop New York LaGuardia

9:00 am - 8:29 amCPH Kastrup Copenhagen-STL Lambert-St Louis

30h 29m1 stop New York John F Kennedy Intl

$782Delta

Thu, Oct 8 - Thu, Oct 22

Cheap last minute flights

Enter your travel dates to find the best prices.

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

18h 55m1 stop Toronto Pearson Intl

12:45 pm - 8:20 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

14h 35m1 stop Toronto Pearson Intl

$921Multiple Airlines

Mon, Sep 14 - Fri, Sep 18

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

18h 55m1 stop 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

$929Air Canada

Mon, Sep 14 - Fri, Sep 18

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

15h 40m2 stops Montreal Pierre Elliott Trudeau Intl 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

$932Air Canada

Mon, Sep 14 - Fri, Sep 18

12:59 pm - 11:55 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 56m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:45 pm - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

25h 40m1 stop Frankfurt am Main

$957Lufthansa

Mon, Sep 14 - Mon, Sep 21

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

13h 10m1 stop Toronto Pearson Intl

7:55 pm - 8:20 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

31h 25m2 stops Zurich Toronto Pearson Intl

$961Multiple Airlines

Mon, Sep 14 - Mon, Sep 21

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

13h 10m1 stop Toronto Pearson Intl

12:35 pm - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

31h 50m1 stop Frankfurt am Main

$962United Airlines

Mon, Sep 14 - Mon, Sep 21

10:53 am - 5:20 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

23h 27m2 stops Chicago O'Hare Intl Brussels Bruxelles-National

12:35 pm - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

31h 50m1 stop Frankfurt am Main

$966United Airlines

Sun, Sep 13 - Mon, Sep 21

3:30 pm - 6:05 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

19h 35m1 stop Frankfurt am Main

7:25 pm - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

25h 00m2 stops Munich Franz Josef Strauss Frankfurt am Main

$967Lufthansa

Sun, Sep 13 - Mon, Sep 21

10:40 am - 11:45 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 05m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

1:55 pm - 11:42 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

16h 47m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$1,005Delta

Sun, Sep 13 - Mon, Sep 21

10:40 am - 11:45 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 05m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

9:00 am - 11:42 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

21h 42m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

$1,005Delta

Sun, Sep 13 - Mon, Sep 21

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Air Canada flights from St. Louis to Denmark

Our best Air Canada deals on St. Louis to Denmark flight tickets

Air Canada

Oct 19

STL9:04 amLambert-St Louis

18h 46m

2 stops

CPH10:50 amKastrup Copenhagen

Nov 4

CPH11:35 amKastrup Copenhagen

18h 49m

2 stops

STL11:24 pmLambert-St Louis

$603

Air Canada

Oct 19

STL2:40 pmLambert-St Louis

13h 10m

1 stop

CPH10:50 amKastrup Copenhagen

Nov 4

CPH11:35 amKastrup Copenhagen

34h 51m

1 stop

STL3:26 pmLambert-St Louis

$625

Air Canada

Nov 9

STL6:50 pmLambert-St Louis

32h 30m

2 stops

CPH10:20 amKastrup Copenhagen

Nov 18

CPH11:35 amKastrup Copenhagen

35h 08m

2 stops

STL3:43 pmLambert-St Louis

$666

Lufthansa flights from St. Louis to Denmark

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

Lufthansa

Nov 8

STL6:50 pmLambert-St Louis

15h 45m

2 stops

CPH5:35 pmKastrup Copenhagen

Nov 14

CPH12:40 pmKastrup Copenhagen

32h 05m

1 stop

STL1:45 pmLambert-St Louis

$755

Lufthansa

Nov 8

STL6:50 pmLambert-St Louis

15h 45m

2 stops

CPH5:35 pmKastrup Copenhagen

Nov 14

CPH6:20 pmKastrup Copenhagen

26h 25m

2 stops

STL1:45 pmLambert-St Louis

$763

Lufthansa

Nov 8

STL3:40 pmLambert-St Louis

19h 45m

1 stop

CPH6:25 pmKastrup Copenhagen

Nov 14

CPH2:15 pmKastrup Copenhagen

30h 30m

1 stop

STL1:45 pmLambert-St Louis

$778

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 10/19

9:04 am-10:50 am

2 stops18h 46m

Kastrup Copenhagen

Wed 11/4

11:35 am-11:24 pm

2 stops18h 49m

$603

Quickest round-trip

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 10/19

2:40 pm-10:50 am

1 stop13h 10m

Kastrup Copenhagen

Wed 11/4

11:35 am-11:24 pm

2 stops18h 49m

$603

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 11/9

5:29 pm-5:25 pm

2 stops16h 56m

Kastrup Copenhagen

Wed 11/18

8:55 am-8:20 pm

2 stops18h 25m

$681

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 10/19

2:40 pm-10:45 pm

2 stops25h 05m

Kastrup Copenhagen

Wed 11/4

5:35 pm-3:26 pm

3 stops28h 51m

$702

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sun 10/25

6:00 am-2:10 pm

2 stops26h 10m

Kastrup Copenhagen

Sun 11/1

11:35 am-10:26 pm

2 stops41h 51m

$728

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 10/19

2:40 pm-11:20 pm

3 stops25h 40m

Kastrup Copenhagen

Wed 11/4

2:15 pm-3:26 pm

3 stops32h 11m

$733

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sun 11/8

6:50 pm-5:35 pm

2 stops15h 45m

Kastrup Copenhagen

Sat 11/14

12:40 pm-1:45 pm

1 stop32h 05m

$755

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sun 11/8

6:50 pm-5:35 pm

2 stops15h 45m

Kastrup Copenhagen

Sat 11/14

7:10 pm-1:45 pm

1 stop25h 35m

$756

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sun 10/25

4:40 pm-1:30 pm

1 stop14h 50m

Kastrup Copenhagen

Sun 11/1

11:35 am-11:24 pm

2 stops18h 49m

$772

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Thu 10/8

10:00 am-6:45 am

1 stop13h 45m

Kastrup Copenhagen

Thu 10/22

9:00 am-8:29 am

1 stop30h 29m

$782

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, 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 32% 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	$320
Fastest flight time	13h 10m
Direct flights	None

The best one-way flight to Denmark from St. Louis in the past 72 hours is $320. The best round-trip flight deal from St. Louis to Denmark found on momondo in the last 72 hours is $603.

The fastest flight from St. Louis to Denmark takes 13h 10m

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 8,564 reviews	Search Delta flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 10,212 reviews	Search United Airlines flights
Lufthansa	PriceFrom $690	Free Cancellation	Rating 6.8 8,222 reviews	Search Lufthansa flights
American Airlines	PriceFrom $693	Free Cancellation	Rating 7.1 12,050 reviews	Search American Airlines flights
Air Canada	PriceFrom $761	Free Cancellation	Rating 7.1 11,620 reviews	Search Air Canada flights
Scandinavian Airlines	PriceFrom $769	Free Cancellation	Rating 7.4 1,986 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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Find better results for your trip to Denmark

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Complete your trip

Feeling lucky

Popular cities in Denmark

Flights to Copenhagenfrom $409

Flights to Billundfrom $535

Flights to Aalborgfrom $604

Flights to Aarhusfrom $579

Flights to Sønderborgfrom $1,257

Flights to Karupfrom $1,271

Cheap flights from St. Louis to Denmark from $320

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 9/30. 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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Filter for what you want

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Air Canada flights from St. Louis to Denmark

Our best Air Canada deals on St. Louis to Denmark flight tickets

Lufthansa flights from St. Louis to Denmark

Our best Lufthansa 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