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

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

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 29% 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 August 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.

$388 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 - 12:40 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

32h 05m2 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 - 6:06 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

37h 31m2 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 - 10:41 amCPH Kastrup Copenhagen-STL Lambert-St Louis

30h 06m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$790Air Canada

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 - 2:30 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

33h 55m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$791Air Canada

Wed, Feb 3 - Fri, Feb 5

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

$839Lufthansa

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

10:05 am - 9:52 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

18h 47m2 stops Frankfurt am Main Newark

$846Lufthansa

Mon, Nov 9 - Wed, Nov 18

6:02 am - 10:10 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

21h 08m1 stop Seattle/Tacoma Intl

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

17h 54m1 stop Seattle/Tacoma Intl

$869Multiple Airlines

Sat, Oct 3 - Sat, Oct 10

2:54 pm - 5:50 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

19h 56m2 stops Dallas/Fort Worth London Heathrow

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

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

$874British Airways

Sun, Nov 8 - Sat, Nov 14

5:47 pm - 11:45 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

10h 58m1 stop Minneapolis St Paul

9:00 am - 8:06 amCPH Kastrup Copenhagen-STL Lambert-St Louis

30h 06m1 stop New York John F Kennedy Intl

$985Delta

Fri, Sep 11 - Thu, Sep 24

5:59 pm - 5:05 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

16h 06m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

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

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

$986Delta

Mon, Sep 14 - Mon, Sep 21

Cheap last minute flights

Enter your travel dates to find the best prices.

12:27 pm - 6:40 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

23h 13m2 stops Newark Munich Franz Josef Strauss

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

14h 05m1 stop Frankfurt am Main

$928Lufthansa

Tue, Aug 25 - Tue, Sep 1

3:30 pm - 1:55 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 25m1 stop Frankfurt am Main

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

14h 05m1 stop Frankfurt am Main

$934Lufthansa

Tue, Aug 25 - Tue, Sep 1

3:30 pm - 1:55 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 25m1 stop Frankfurt am Main

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

14h 05m1 stop Frankfurt am Main

$935Lufthansa

Tue, Aug 25 - Tue, Sep 1

8:40 am - 6:40 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

27h 00m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:20 am - 7:11 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

19h 51m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$937Lufthansa

Tue, Aug 25 - Tue, Sep 1

12:27 pm - 1:55 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 28m2 stops Newark Frankfurt am Main

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

14h 05m1 stop Frankfurt am Main

$938Lufthansa

Tue, Aug 25 - Tue, Sep 1

12:45 pm - 11:35 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 50m2 stops Dallas/Fort Worth Philadelphia

3:20 pm - 12:14 amCPH Kastrup Copenhagen-STL Lambert-St Louis

15h 54m2 stops Philadelphia Chicago O'Hare Intl

$944American Airlines

Tue, Aug 25 - Tue, Sep 1

2:50 pm - 3:55 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 05m3 stops Kansas City Denver Intl Reykjavik Keflavik Intl

10:35 pm - 6:45 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

27h 10m2 stops Reykjavik Keflavik Intl Denver Intl

$1,203Multiple Airlines

Tue, Aug 25 - Tue, Sep 1

2:50 pm - 3:55 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

18h 05m3 stops Kansas City Denver Intl Reykjavik Keflavik Intl

10:35 pm - 9:10 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

29h 35m2 stops Reykjavik Keflavik Intl Denver Intl

$1,265Multiple Airlines

Tue, Aug 25 - Tue, Sep 1

4:15 pm - 12:55 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

13h 40m2 stops Baltimore/Washington Reykjavik Keflavik Intl

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

31h 35m2 stops Reykjavik Keflavik Intl Denver Intl

$3,902Multiple Airlines

Mon, Aug 24 - Wed, Aug 26

4:15 pm - 12:55 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

13h 40m2 stops Baltimore/Washington Reykjavik Keflavik Intl

10:35 pm - 10:05 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

30h 30m3 stops Reykjavik Keflavik Intl Denver Intl Chicago Midway

$3,902Multiple Airlines

Mon, Aug 24 - Wed, Aug 26

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United Airlines flights from St. Louis to Denmark

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

United Airlines

Feb 3

STL3:40 pmLambert-St Louis

14h 50m

1 stop

CPH1:30 pmKastrup Copenhagen

Feb 5

CPH11:35 amKastrup Copenhagen

37h 31m

2 stops

STL6:06 pmLambert-St Louis

$780

United Airlines

Feb 3

STL6:30 amLambert-St Louis

24h 00m

3 stops

CPH1:30 pmKastrup Copenhagen

Feb 5

CPH11:35 amKastrup Copenhagen

39h 05m

2 stops

STL7:40 pmLambert-St Louis

$783

United Airlines

Feb 3

STL4:05 pmLambert-St Louis

19h 20m

2 stops

CPH6:25 pmKastrup Copenhagen

Feb 5

CPH11:35 amKastrup Copenhagen

39h 05m

2 stops

STL7:40 pmLambert-St Louis

$788

Air Canada flights from St. Louis to Denmark

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

Air Canada

Feb 3

STL4:05 pmLambert-St Louis

15h 05m

2 stops

CPH2:10 pmKastrup Copenhagen

Feb 5

CPH11:35 amKastrup Copenhagen

30h 06m

2 stops

STL10:41 amLambert-St Louis

$790

Air Canada

Feb 3

STL4:05 pmLambert-St Louis

15h 05m

2 stops

CPH2:10 pmKastrup Copenhagen

Feb 5

CPH11:35 amKastrup Copenhagen

33h 55m

2 stops

STL2:30 pmLambert-St Louis

$791

Air Canada

Sep 9

STL12:10 pmLambert-St Louis

15h 40m

2 stops

CPH10:50 amKastrup Copenhagen

Sep 15

CPH12:45 pmKastrup Copenhagen

30h 12m

2 stops

STL11:57 amLambert-St Louis

$931

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-12:40 pm

2 stops32h 05m

$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-6:06 pm

2 stops37h 31m

$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-10:41 am

2 stops30h 06m

$790

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-2:30 pm

2 stops33h 55m

$791

Quickest round-trip

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

$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

10:05 am-9:52 pm

2 stops18h 47m

$846

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sat 10/3

6:02 am-10:10 am

1 stop21h 08m

Kastrup Copenhagen

Sat 10/10

1:05 pm-11:59 pm

1 stop17h 54m

$869

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Sun 11/8

2:54 pm-5:50 pm

2 stops19h 56m

Kastrup Copenhagen

Sat 11/14

8:55 am-8:19 pm

2 stops18h 24m

$874

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Fri 9/11

5:47 pm-11:45 am

1 stop10h 58m

Kastrup Copenhagen

Thu 9/24

9:00 am-8:06 am

1 stop30h 06m

$985

St. LouisCopenhagen

STL Lambert-St Louis - CPH Kastrup Copenhagen

STLCPH

Lambert-St Louis

Mon 9/14

5:59 pm-5:05 pm

2 stops16h 06m

Kastrup Copenhagen

Mon 9/21

1:55 pm-11:42 pm

2 stops16h 47m

$986

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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	$388
Fastest flight time	13h 10m
Direct flights	None

The best one-way flight to Denmark from St. Louis in the past 72 hours is $388. 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 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 August 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 8,513 reviews	Search Delta flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 10,114 reviews	Search United Airlines flights
Lufthansa	PriceFrom $690	Free Cancellation	Rating 6.8 8,209 reviews	Search Lufthansa flights
American Airlines	PriceFrom $693	Free Cancellation	Rating 7.1 11,985 reviews	Search American Airlines flights
Air Canada	PriceFrom $734	Free Cancellation	Rating 7.1 11,519 reviews	Search Air Canada flights
Scandinavian Airlines	PriceFrom $769	Free Cancellation	Rating 7.4 1,962 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.

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Popular cities

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Complete your trip

Feeling lucky

Popular cities in Denmark

Flights to Copenhagenfrom $438

Flights to Billundfrom $475

Flights to Aalborgfrom $528

Flights to Aarhusfrom $512

Flights to Sønderborgfrom $1,090

Flights to Karupfrom $1,271

Cheap flights from St. Louis to Denmark from $388

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 9/19. 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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United Airlines flights from St. Louis to Denmark

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

Air Canada flights from St. Louis to Denmark

Our best Air Canada 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