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Cheap flights from St. Louis to Denmark from $321

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 9/12. 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.
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
10:05 am - 11:09 pm
CPH
-
STL
20h 04m
2 stops
$807Lufthansa
Mon, Nov 9 - Wed, Nov 18
Multiple Airlines Logo
2:40 pm - 10:50 am
STL
-
CPH
13h 10m
1 stop
Multiple Airlines Logo
8:45 am - 7:48 pm
CPH
-
STL
18h 03m
2 stops
$818Multiple Airlines
Thu, Oct 15 - Tue, Oct 20
American Airlines Logo
6:13 pm - 5:40 pm
STL
-
CPH
16h 27m
2 stops
American Airlines Logo
8:55 am - 7:22 pm
CPH
-
STL
17h 27m
2 stops
$822American Airlines
Sun, Dec 6 - Tue, Dec 22
British Airways Logo
6:13 pm - 5:40 pm
STL
-
CPH
16h 27m
2 stops
British Airways Logo
10:30 am - 10:56 pm
CPH
-
STL
19h 26m
2 stops
$823British Airways
Sun, Dec 6 - Tue, Dec 22
Multiple Airlines Logo
3:40 pm - 1:30 pm
STL
-
CPH
14h 50m
1 stop
Multiple Airlines Logo
10:05 am - 3:26 pm
CPH
-
STL
36h 21m
2 stops
$836Multiple Airlines
Sun, Dec 6 - Tue, Dec 22
Multiple Airlines Logo
2:40 pm - 11:45 am
STL
-
CPH
38h 05m
2 stops
Multiple Airlines Logo
3:20 pm - 11:34 pm
CPH
-
STL
15h 14m
1 stop
$839Multiple Airlines
Wed, Aug 12 - Sat, Aug 29
Multiple Airlines Logo
3:50 pm - 11:45 am
STL
-
CPH
12h 55m
1 stop
Multiple Airlines Logo
3:20 pm - 11:58 pm
CPH
-
STL
15h 38m
2 stops
$842Multiple Airlines
Sun, Aug 16 - Sat, Aug 29
Multiple Airlines Logo
12:10 pm - 11:05 am
STL
-
CPH
15h 55m
2 stops
Multiple Airlines Logo
10:30 am - 1:25 pm
CPH
-
STL
33h 55m
1 stop
$851Multiple Airlines
Sun, Aug 9 - Mon, Aug 24
Multiple Airlines Logo
12:59 pm - 11:55 am
STL
-
CPH
15h 56m
2 stops
Multiple Airlines Logo
8:50 am - 7:07 pm
CPH
-
STL
17h 17m
2 stops
$853Multiple Airlines
Sun, Sep 6 - Sat, Sep 12

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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 9
STL4:40 pmLambert-St Louis
11h 00m
1 stop
CPH10:40 amKastrup Copenhagen
Nov 18
CPH1:50 pmKastrup Copenhagen
16h 49m
1 stop
STL11:39 pmLambert-St Louis
$861
Scandinavian Airlines
Nov 9
STL4:40 pmLambert-St Louis
11h 00m
1 stop
CPH10:40 amKastrup Copenhagen
Nov 18
CPH1:50 pmKastrup Copenhagen
16h 49m
1 stop
STL11:39 pmLambert-St Louis
$863
Scandinavian Airlines
Sep 14
STL2:30 pmLambert-St Louis
12h 45m
1 stop
CPH10:15 amKastrup Copenhagen
Sep 21
CPH1:35 pmKastrup Copenhagen
17h 07m
1 stop
STL11:42 pmLambert-St Louis
$898

Air Canada flights from St. Louis to Denmark

Our best Air Canada deals on St. Louis to Denmark flight tickets
Air Canada
Aug 9
STL2:40 pmLambert-St Louis
12h 55m
1 stop
CPH10:35 amKastrup Copenhagen
Aug 24
CPH12:15 pmKastrup Copenhagen
13h 27m
1 stop
STL6:42 pmLambert-St Louis
$869
Air Canada
Aug 9
STL1:13 pmLambert-St Louis
14h 22m
2 stops
CPH10:35 amKastrup Copenhagen
Aug 24
CPH12:15 pmKastrup Copenhagen
15h 09m
2 stops
STL8:24 pmLambert-St Louis
$888
Air Canada
Oct 15
STL2:40 pmLambert-St Louis
13h 10m
1 stop
CPH10:50 amKastrup Copenhagen
Oct 20
CPH12:45 pmKastrup Copenhagen
14h 15m
1 stop
STL8:00 pmLambert-St Louis
$903

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 6, 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 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

10:05 am-11:09 pm

2 stops20h 04m

$807

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Thu 10/15

2:40 pm-10:50 am

1 stop13h 10m

Kastrup Copenhagen

Tue 10/20

8:45 am-7:48 pm

2 stops18h 03m

$818

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 12/6

6:13 pm-5:40 pm

2 stops16h 27m

Kastrup Copenhagen

Tue 12/22

8:55 am-7:22 pm

2 stops17h 27m

$822

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 12/6

6:13 pm-5:40 pm

2 stops16h 27m

Kastrup Copenhagen

Tue 12/22

10:30 am-10:56 pm

2 stops19h 26m

$823

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 12/6

3:40 pm-1:30 pm

1 stop14h 50m

Kastrup Copenhagen

Tue 12/22

10:05 am-3:26 pm

2 stops36h 21m

$836

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 8/12

2:40 pm-11:45 am

2 stops38h 05m

Kastrup Copenhagen

Sat 8/29

3:20 pm-11:34 pm

1 stop15h 14m

$839
Quickest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 8/16

3:50 pm-11:45 am

1 stop12h 55m

Kastrup Copenhagen

Sat 8/29

3:20 pm-11:58 pm

2 stops15h 38m

$842

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 8/9

12:10 pm-11:05 am

2 stops15h 55m

Kastrup Copenhagen

Mon 8/24

10:30 am-1:25 pm

1 stop33h 55m

$851

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 9/6

12:59 pm-11:55 am

2 stops15h 56m

Kastrup Copenhagen

Sat 9/12

8:50 am-7:07 pm

2 stops17h 17m

$853

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 45m

Direct flights

None
The fastest flight from St. Louis to Denmark takes 13h 45m
There are no direct flights from St. Louis to Denmark. There are no popular flight routes from St. Louis to Denmark.
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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
9,940 reviews
Search United Airlines flights
DeltaPriceFrom $643Free CancellationRating
7.8
8,452 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $655Free CancellationRating
7.4
1,868 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $684Free CancellationRating
7.1
11,782 reviews
Search American Airlines flights
LufthansaPriceFrom $690Free CancellationRating
6.8
8,119 reviews
Search Lufthansa flights
Air CanadaPriceFrom $734Free CancellationRating
7.1
11,308 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.

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