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

British Airways, Delta, and United Airlines are the most popular carriers operating from Lambert-St Louis to Denmark

What airlines fly to Denmark?

Air Canada, Lufthansa and Delta 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 26% of people opting to fly with this airline when traveling to Denmark. Keep in mind that there are 7 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 June 2026, there are 7 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.

$412 Cheap Flights from St. Louis to Denmark in 2026

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Find the cheapest flights from St. Louis to Denmark

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:55 am - 10:50 am

STL

CPH

18h 55m

1 stop

8:50 am - 8:44 pm

CPH

STL

18h 54m

2 stops

$759Multiple Airlines

Mon, Sep 14 - Fri, Sep 18

7:05 pm - 6:45 am

STL

CPH

52h 40m

2 stops

8:50 am - 8:44 pm

CPH

STL

18h 54m

2 stops

$778Multiple Airlines

Fri, Sep 11 - Sun, Sep 20

8:55 am - 11:55 am

STL

CPH

20h 00m

2 stops

3:20 pm - 11:34 pm

CPH

STL

15h 14m

1 stop

$781Multiple Airlines

Tue, Aug 18 - Sun, Aug 23

8:55 am - 11:55 am

STL

CPH

20h 00m

2 stops

8:50 am - 7:51 pm

CPH

STL

18h 01m

2 stops

$782Multiple Airlines

Tue, Aug 18 - Sun, Aug 23

4:15 pm - 11:05 pm

STL

CPH

23h 50m

2 stops

8:55 am - 10:29 pm

CPH

STL

20h 34m

2 stops

$810Multiple Airlines

Sun, Nov 1 - Mon, Nov 9

5:30 pm - 11:45 am

STL

CPH

11h 15m

1 stop

8:50 am - 8:44 pm

CPH

STL

18h 54m

2 stops

$816Multiple Airlines

Fri, Sep 11 - Sun, Sep 20

8:55 am - 10:50 am

STL

CPH

18h 55m

1 stop

12:45 pm - 2:00 pm

CPH

STL

32h 15m

1 stop

$820Multiple Airlines

Mon, Sep 14 - Fri, Sep 18

6:54 pm - 8:55 am

STL

CPH

31h 01m

2 stops

12:45 pm - 11:57 am

CPH

STL

30h 12m

2 stops

$829United Airlines

Mon, Aug 31 - Tue, Sep 15

12:10 pm - 8:55 am

STL

CPH

13h 45m

1 stop

3:20 pm - 11:34 pm

CPH

STL

15h 14m

1 stop

$833Multiple Airlines

Tue, Aug 18 - Sun, Aug 23

8:55 am - 11:05 am

STL

CPH

19h 10m

2 stops

12:45 pm - 2:11 pm

CPH

STL

32h 26m

2 stops

$838Air Canada

Sun, Oct 11 - Fri, Oct 23

Lufthansa flights from St. Louis to Denmark

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

Lufthansa

Nov 8

STL6:45 pmLambert-St Louis

21h 20m

2 stops

CPH11:05 pmKastrup Copenhagen

Nov 14

CPH10:05 amKastrup Copenhagen

20h 20m

2 stops

STL11:25 pmLambert-St Louis

$874

Lufthansa

Aug 17

STL6:54 pmLambert-St Louis

14h 41m

2 stops

CPH4:35 pmKastrup Copenhagen

Aug 24

CPH6:45 pmKastrup Copenhagen

25h 40m

1 stop

STL1:25 pmLambert-St Louis

$877

Lufthansa

Nov 8

STL3:40 pmLambert-St Louis

13h 20m

1 stop

CPH12:00 pmKastrup Copenhagen

Nov 14

CPH7:10 amKastrup Copenhagen

19h 30m

2 stops

STL7:40 pmLambert-St Louis

$881

United Airlines flights from St. Louis to Denmark

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

United Airlines

Aug 31

STL6:54 pmLambert-St Louis

31h 01m

2 stops

CPH8:55 amKastrup Copenhagen

Sep 15

CPH12:45 pmKastrup Copenhagen

30h 12m

2 stops

STL11:57 amLambert-St Louis

$829

United Airlines

Aug 31

STL6:54 pmLambert-St Louis

31h 01m

2 stops

CPH8:55 amKastrup Copenhagen

Sep 15

CPH12:45 pmKastrup Copenhagen

14h 15m

1 stop

STL8:00 pmLambert-St Louis

$843

United Airlines

Oct 12

STL8:55 amLambert-St Louis

18h 55m

1 stop

CPH10:50 amKastrup Copenhagen

Oct 27

CPH2:15 pmKastrup Copenhagen

16h 19m

2 stops

STL12:34 amLambert-St Louis

$875

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 9/14

8:55 am-10:50 am

1 stop18h 55m

Kastrup Copenhagen

Fri 9/18

8:50 am-8:44 pm

2 stops18h 54m

$759

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Fri 9/11

7:05 pm-6:45 am

2 stops52h 40m

Kastrup Copenhagen

Sun 9/20

8:50 am-8:44 pm

2 stops18h 54m

$778

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 8/18

8:55 am-11:55 am

2 stops20h 00m

Kastrup Copenhagen

Sun 8/23

3:20 pm-11:34 pm

1 stop15h 14m

$781

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 8/18

8:55 am-11:55 am

2 stops20h 00m

Kastrup Copenhagen

Sun 8/23

8:50 am-7:51 pm

2 stops18h 01m

$782

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 11/1

4:15 pm-11:05 pm

2 stops23h 50m

Kastrup Copenhagen

Mon 11/9

8:55 am-10:29 pm

2 stops20h 34m

$810

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Fri 9/11

5:30 pm-11:45 am

1 stop11h 15m

Kastrup Copenhagen

Sun 9/20

8:50 am-8:44 pm

2 stops18h 54m

$816

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 9/14

8:55 am-10:50 am

1 stop18h 55m

Kastrup Copenhagen

Fri 9/18

12:45 pm-2:00 pm

1 stop32h 15m

$820

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/31

6:54 pm-8:55 am

2 stops31h 01m

Kastrup Copenhagen

Tue 9/15

12:45 pm-11:57 am

2 stops30h 12m

$829

Quickest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 8/18

12:10 pm-8:55 am

1 stop13h 45m

Kastrup Copenhagen

Sun 8/23

3:20 pm-11:34 pm

1 stop15h 14m

$833

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 10/11

8:55 am-11:05 am

2 stops19h 10m

Kastrup Copenhagen

Fri 10/23

12:45 pm-2:11 pm

2 stops32h 26m

$838

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, September 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 $250. If you aren’t able to travel to Denmark during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $523.

How far in advance should I book a flight from St. Louis to Denmark?

You are more likely to see cheaper flights to Denmark from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Denmark for around $834 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denmark from St. Louis for as low as $711 on momondo.

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

You could potentially save up to 1% 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

Fastest flight time	12h 50m
Direct flights	None

The fastest flight from St. Louis to Denmark takes 12h 50m

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 June 2026, there are 7 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
British Airways	PriceFrom $523	Free Cancellation	Rating 6.7 8,015 reviews	Search British Airways flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 9,772 reviews	Search United Airlines flights
Delta	PriceFrom $643	Free Cancellation	Rating 7.9 8,401 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $655	Free Cancellation	Rating 7.4 1,803 reviews	Search Scandinavian Airlines flights
American Airlines	PriceFrom $684	Free Cancellation	Rating 7.1 11,643 reviews	Search American Airlines flights
Lufthansa	PriceFrom $690	Free Cancellation	Rating 6.8 8,031 reviews	Search Lufthansa flights
Air Canada	PriceFrom $761	Free Cancellation	Rating 7.1 11,109 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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Feeling lucky

Popular cities in Denmark

Flights to Copenhagenfrom $375

Flights to Billundfrom $511

Flights to Aalborgfrom $551

Flights to Aarhusfrom $580

Flights to Sønderborgfrom $1,038

Flights to Karupfrom $1,271

Flights to Esbjergfrom $1,557

Cheap flights from St. Louis to Denmark from $412

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 6/19. 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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Lufthansa flights from St. Louis to Denmark

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United Airlines flights from St. Louis to Denmark

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

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

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

What is the cheapest month to fly to Denmark?

How far in advance should I book a flight from St. Louis 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

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

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