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Cheap flights from St. Louis to Denmark from $252

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 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 2:10 pm
STL
-
CPH
15h 05m
2 stops
Air Canada Logo
11:35 am - 12:06 pm
CPH
-
STL
31h 31m
2 stops
$785Air Canada
Mon, Dec 7 - Wed, Dec 9
Air Canada Logo
4:05 pm - 2:10 pm
STL
-
CPH
15h 05m
2 stops
Air Canada Logo
11:35 am - 3:26 pm
CPH
-
STL
34h 51m
1 stop
$798Air Canada
Mon, Dec 7 - Wed, Dec 9
Lufthansa Logo
7:04 pm - 5:35 pm
STL
-
CPH
15h 31m
2 stops
Lufthansa Logo
7:10 am - 1:45 pm
CPH
-
STL
13h 35m
1 stop
$800Lufthansa
Mon, Nov 9 - Wed, Nov 18
Lufthansa Logo
7:04 pm - 5:35 pm
STL
-
CPH
15h 31m
2 stops
Lufthansa Logo
7:10 am - 1:45 pm
CPH
-
STL
13h 35m
1 stop
$802Lufthansa
Mon, Nov 9 - Wed, Nov 18
Lufthansa Logo
7:04 pm - 5:35 pm
STL
-
CPH
15h 31m
2 stops
Lufthansa Logo
10:05 am - 11:09 pm
CPH
-
STL
20h 04m
2 stops
$807Lufthansa
Mon, Nov 9 - Wed, Nov 18
Multiple Airlines Logo
5:34 pm - 11:45 am
STL
-
CPH
11h 11m
1 stop
Multiple Airlines Logo
8:50 am - 7:51 pm
CPH
-
STL
18h 01m
2 stops
$808Multiple Airlines
Sun, Aug 23 - Sun, Sep 6
Lufthansa Logo
7:04 pm - 5:35 pm
STL
-
CPH
15h 31m
2 stops
Lufthansa Logo
10:05 am - 11:09 pm
CPH
-
STL
20h 04m
2 stops
$809Lufthansa
Mon, Nov 9 - Wed, Nov 18
Multiple Airlines Logo
8:55 am - 10:50 am
STL
-
CPH
18h 55m
1 stop
Multiple Airlines Logo
3:20 pm - 11:34 pm
CPH
-
STL
15h 14m
1 stop
$828Multiple Airlines
Wed, Sep 2 - Sun, Sep 6
Multiple Airlines Logo
8:55 am - 10:50 am
STL
-
CPH
18h 55m
1 stop
Multiple Airlines Logo
8:50 am - 7:51 pm
CPH
-
STL
18h 01m
2 stops
$830Multiple Airlines
Wed, Sep 2 - Sun, Sep 6
Multiple Airlines Logo
5:34 pm - 11:45 am
STL
-
CPH
11h 11m
1 stop
Multiple Airlines Logo
3:20 pm - 11:34 pm
CPH
-
STL
15h 14m
1 stop
$839Multiple Airlines
Sun, Aug 23 - Sun, Sep 6

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Lufthansa flights from St. Louis to Denmark

Our best Lufthansa deals on St. Louis to Denmark flight tickets
Lufthansa
Nov 9
STL7:04 pmLambert-St Louis
15h 31m
2 stops
CPH5:35 pmKastrup Copenhagen
Nov 18
CPH7:10 amKastrup Copenhagen
13h 35m
1 stop
STL1:45 pmLambert-St Louis
$800
Lufthansa
Nov 9
STL7:04 pmLambert-St Louis
15h 31m
2 stops
CPH5:35 pmKastrup Copenhagen
Nov 18
CPH7:10 amKastrup Copenhagen
13h 35m
1 stop
STL1:45 pmLambert-St Louis
$802
Lufthansa
Nov 9
STL7:04 pmLambert-St Louis
15h 31m
2 stops
CPH5:35 pmKastrup Copenhagen
Nov 18
CPH10:05 amKastrup Copenhagen
20h 04m
2 stops
STL11:09 pmLambert-St Louis
$807

Air Canada flights from St. Louis to Denmark

Our best Air Canada deals on St. Louis to Denmark flight tickets
Air Canada
Dec 7
STL4:05 pmLambert-St Louis
15h 05m
2 stops
CPH2:10 pmKastrup Copenhagen
Dec 9
CPH11:35 amKastrup Copenhagen
31h 31m
2 stops
STL12:06 pmLambert-St Louis
$785
Air Canada
Dec 7
STL4:05 pmLambert-St Louis
15h 05m
2 stops
CPH2:10 pmKastrup Copenhagen
Dec 9
CPH11:35 amKastrup Copenhagen
34h 51m
1 stop
STL3:26 pmLambert-St Louis
$798
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
$908

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Denmark that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 17, 2026.
Use the filters below to find and compare flights from St. Louis to Denmark that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 12/7

4:05 pm-2:10 pm

2 stops15h 05m

Kastrup Copenhagen

Wed 12/9

11:35 am-12:06 pm

2 stops31h 31m

$785

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 12/7

4:05 pm-2:10 pm

2 stops15h 05m

Kastrup Copenhagen

Wed 12/9

11:35 am-3:26 pm

1 stop34h 51m

$798

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/9

7:04 pm-5:35 pm

2 stops15h 31m

Kastrup Copenhagen

Wed 11/18

7:10 am-1:45 pm

1 stop13h 35m

$800

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/9

7:04 pm-5:35 pm

2 stops15h 31m

Kastrup Copenhagen

Wed 11/18

7:10 am-1:45 pm

1 stop13h 35m

$802

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/9

7:04 pm-5:35 pm

2 stops15h 31m

Kastrup Copenhagen

Wed 11/18

10:05 am-11:09 pm

2 stops20h 04m

$807

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 8/23

5:34 pm-11:45 am

1 stop11h 11m

Kastrup Copenhagen

Sun 9/6

8:50 am-7:51 pm

2 stops18h 01m

$808

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/9

7:04 pm-5:35 pm

2 stops15h 31m

Kastrup Copenhagen

Wed 11/18

10:05 am-11:09 pm

2 stops20h 04m

$809

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 9/2

8:55 am-10:50 am

1 stop18h 55m

Kastrup Copenhagen

Sun 9/6

3:20 pm-11:34 pm

1 stop15h 14m

$828

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 9/2

8:55 am-10:50 am

1 stop18h 55m

Kastrup Copenhagen

Sun 9/6

8:50 am-7:51 pm

2 stops18h 01m

$830
Quickest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 8/23

5:34 pm-11:45 am

1 stop11h 11m

Kastrup Copenhagen

Sun 9/6

3:20 pm-11:34 pm

1 stop15h 14m

$839

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Denmark from

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

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.

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

You could potentially save up to 27% 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

13h 10m

Direct flights

None
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?

  • 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
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,998 reviews
Search United Airlines flights
DeltaPriceFrom $643Free CancellationRating
7.8
8,473 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $655Free CancellationRating
7.4
1,885 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $690Free CancellationRating
6.8
8,140 reviews
Search Lufthansa flights
American AirlinesPriceFrom $693Free CancellationRating
7.1
11,816 reviews
Search American Airlines flights
Air CanadaPriceFrom $734Free CancellationRating
7.1
11,347 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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