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?

United Airlines, Air Canada and Lufthansa are the top three most popular airlines that fly to Denmark 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 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 September 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.

$336 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 - 4:13 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

35h 38m2 stops Toronto Pearson Intl Newark

$738United Airlines

Wed, Feb 3 - Fri, Feb 5

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

19h 45m1 stop Frankfurt am Main

11:35 am - 9:47 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

41h 12m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$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

12:36 pm - 10:30 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

14h 54m1 stop Atlanta Hartsfield-Jackson

1:50 pm - 12:05 amCPH Kastrup Copenhagen-STL Lambert-St Louis

17h 15m1 stop Atlanta Hartsfield-Jackson

$839Scandinavian Airlines

Wed, Dec 2 - Wed, Dec 9

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

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

15h 05m2 stops Toronto Pearson Intl Zurich

10:05 am - 9:40 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

18h 35m3 stops Frankfurt am Main Toronto Pearson Intl Chicago O'Hare Intl

$1,199Air Canada

Mon, Nov 9 - Mon, Nov 16

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

$959Multiple Airlines

Wed, Sep 30 - Tue, Oct 6

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

13h 10m1 stop Toronto Pearson Intl

12:45 pm - 4:00 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

34h 15m2 stops Toronto Pearson Intl Newark

$965United Airlines

Wed, Sep 30 - Tue, Oct 6

10:05 am - 11:45 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 40m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

9:00 am - 11:54 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

21h 54m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

$981Delta

Wed, Sep 30 - Tue, Oct 6

12:10 pm - 10:35 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

27h 25m2 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National

7:20 pm - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

25h 05m1 stop Frankfurt am Main

$1,096Multiple Airlines

Fri, Oct 2 - Sun, Oct 4

12:10 pm - 10:35 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

27h 25m2 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National

12:45 pm - 6:41 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

36h 56m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,104Multiple Airlines

Fri, Oct 2 - Sun, Oct 4

7:36 pm - 10:10 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

31h 34m1 stop Seattle/Tacoma Intl

1:05 pm - 11:59 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

17h 54m1 stop Seattle/Tacoma Intl

$1,614Multiple Airlines

Fri, Oct 2 - Sun, Oct 4

12:10 pm - 9:25 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

14h 15m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

6:50 pm - 2:00 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

26h 10m3 stops Frankfurt am Main London Heathrow Toronto Pearson Intl

$2,002Multiple Airlines

Wed, Sep 30 - Tue, Oct 6

2:40 pm - 1:15 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 35m2 stops Toronto Pearson Intl Budapest Ferenc Liszt Intl

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

25h 00m3 stops Munich Franz Josef Strauss Istanbul Frankfurt am Main

$2,236Multiple Airlines

Fri, Oct 2 - Sun, Oct 4

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Scandinavian Airlines flights from St. Louis to Denmark

Our best Scandinavian Airlines deals on St. Louis to Denmark 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 2

STL12:36 pmLambert-St Louis

14h 54m

1 stop

CPH10:30 amKastrup Copenhagen

Dec 9

CPH1:50 pmKastrup Copenhagen

17h 15m

1 stop

STL12:05 amLambert-St Louis

$839

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

British Airways flights from St. Louis to Denmark

Our best British Airways deals on St. Louis to Denmark 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-4:13 pm

2 stops35h 38m

$738

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Wed 2/3

3:40 pm-6:25 pm

1 stop19h 45m

Kastrup Copenhagen

Fri 2/5

11:35 am-9:47 pm

2 stops41h 12m

$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

Wed 12/2

12:36 pm-10:30 am

1 stop14h 54m

Kastrup Copenhagen

Wed 12/9

1:50 pm-12:05 am

1 stop17h 15m

$839

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

Mon 11/9

4:05 pm-2:10 pm

2 stops15h 05m

Kastrup Copenhagen

Mon 11/16

10:05 am-9:40 pm

3 stops18h 35m

$1,199

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 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	$336
Fastest flight time	11h 15m
Direct flights	None

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

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 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 $406	Free Cancellation	Rating 7.8 8,610 reviews	Search Delta flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 10,259 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 11,705 reviews	Search Air Canada flights
Scandinavian Airlines	PriceFrom $769	Free Cancellation	Rating 7.4 2,001 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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Feeling lucky

Popular cities in Denmark

Flights to Copenhagenfrom $450

Flights to Billundfrom $502

Flights to Aalborgfrom $496

Flights to Aarhusfrom $491

Flights to Sønderborgfrom $841

Flights to Karupfrom $1,271

Cheap flights from St. Louis to Denmark 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 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.

Find the cheapest flights from St. Louis to Denmark

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Scandinavian Airlines flights from St. Louis to Denmark

Our best Scandinavian Airlines deals on St. Louis to Denmark flight tickets

British Airways flights from St. Louis to Denmark

Our best British Airways 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