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Cheap flights from St. Louis to Denmark from $391

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 5/15. 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
0 bags

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Find the cheapest flights from St. Louis to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
9:35 pm - 7:15 pm
STL
-
CPH
14h 40m
1 stop
British Airways Logo
3:20 pm - 11:23 pm
CPH
-
STL
15h 03m
1 stop
$773British Airways
Tue, Aug 18 - Wed, Sep 2
Multiple Airlines Logo
9:35 pm - 4:10 pm
STL
-
CPH
11h 35m
1 stop
Multiple Airlines Logo
7:25 pm - 7:30 pm
CPH
-
STL
31h 05m
2 stops
$781Multiple Airlines
Wed, Oct 7 - Thu, Oct 15
Multiple Airlines Logo
8:44 am - 4:35 pm
STL
-
CPH
24h 51m
2 stops
Multiple Airlines Logo
8:50 am - 8:26 pm
CPH
-
STL
18h 36m
2 stops
$788Multiple Airlines
Tue, Aug 18 - Wed, Sep 2
British Airways Logo
9:44 am - 3:35 pm
STL
-
CPH
22h 51m
2 stops
British Airways Logo
8:50 am - 8:26 pm
CPH
-
STL
18h 36m
2 stops
$792British Airways
Tue, Aug 18 - Wed, Sep 2
Finnair Logo
12:43 pm - 11:10 pm
STL
-
CPH
27h 27m
2 stops
Finnair Logo
5:00 pm - 7:30 pm
CPH
-
STL
33h 30m
2 stops
$799Finnair
Wed, Oct 7 - Thu, Oct 15
Air Canada Logo
7:05 am - 10:50 am
STL
-
CPH
20h 45m
1 stop
Air Canada Logo
12:45 pm - 8:09 pm
CPH
-
STL
14h 24m
1 stop
$823Air Canada
Mon, May 4 - Tue, May 19
United Airlines Logo
6:55 pm - 8:55 am
STL
-
CPH
31h 00m
2 stops
United Airlines Logo
12:45 pm - 12:13 pm
CPH
-
STL
30h 28m
2 stops
$831United Airlines
Mon, Aug 31 - Tue, Sep 15
Multiple Airlines Logo
12:10 pm - 8:55 am
STL
-
CPH
13h 45m
1 stop
Multiple Airlines Logo
7:50 am - 8:26 pm
CPH
-
STL
19h 36m
2 stops
$840Multiple Airlines
Fri, Aug 7 - Sat, Aug 22
Lufthansa Logo
6:55 pm - 4:35 pm
STL
-
CPH
14h 40m
2 stops
Lufthansa Logo
6:45 pm - 1:25 pm
CPH
-
STL
25h 40m
1 stop
$843Lufthansa
Mon, Aug 17 - Mon, Aug 24
Air Canada Logo
6:55 pm - 8:55 am
STL
-
CPH
31h 00m
2 stops
Air Canada Logo
12:45 pm - 8:00 pm
CPH
-
STL
14h 15m
1 stop
$844Air Canada
Mon, Aug 31 - Tue, Sep 15

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British Airways flights from St. Louis to Denmark

Our best British Airways deals on St. Louis to Denmark flight tickets
British Airways
Aug 18
STL9:35 pmLambert-St Louis
14h 40m
1 stop
CPH7:15 pmKastrup Copenhagen
Sep 2
CPH3:20 pmKastrup Copenhagen
15h 03m
1 stop
STL11:23 pmLambert-St Louis
$773
British Airways
Aug 18
STL9:44 amLambert-St Louis
22h 51m
2 stops
CPH3:35 pmKastrup Copenhagen
Sep 2
CPH8:50 amKastrup Copenhagen
18h 36m
2 stops
STL8:26 pmLambert-St Louis
$792
British Airways
Oct 7
STL9:35 pmLambert-St Louis
11h 35m
1 stop
CPH4:10 pmKastrup Copenhagen
Oct 15
CPH4:55 pmKastrup Copenhagen
33h 35m
1 stop
STL7:30 pmLambert-St Louis
$851

United Airlines flights from St. Louis to Denmark

Our best United Airlines deals on St. Louis to Denmark flight tickets
United Airlines
Aug 31
STL6:55 pmLambert-St Louis
31h 00m
2 stops
CPH8:55 amKastrup Copenhagen
Sep 15
CPH12:45 pmKastrup Copenhagen
30h 28m
2 stops
STL12:13 pmLambert-St Louis
$831
United Airlines
Aug 17
STL8:30 pmLambert-St Louis
29h 25m
2 stops
CPH8:55 amKastrup Copenhagen
Aug 24
CPH12:15 pmKastrup Copenhagen
31h 34m
2 stops
STL12:49 pmLambert-St Louis
$859
United Airlines
Aug 31
STL2:40 pmLambert-St Louis
13h 10m
1 stop
CPH10:50 amKastrup Copenhagen
Sep 15
CPH12:45 pmKastrup Copenhagen
14h 15m
1 stop
STL8:00 pmLambert-St Louis
$860

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 April 24, 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
Quickest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 8/18

9:35 pm-7:15 pm

1 stop14h 40m

Kastrup Copenhagen

Wed 9/2

3:20 pm-11:23 pm

1 stop15h 03m

$773

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 10/7

9:35 pm-4:10 pm

1 stop11h 35m

Kastrup Copenhagen

Thu 10/15

7:25 pm-7:30 pm

2 stops31h 05m

$781

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 8/18

8:44 am-4:35 pm

2 stops24h 51m

Kastrup Copenhagen

Wed 9/2

8:50 am-8:26 pm

2 stops18h 36m

$788

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 8/18

9:44 am-3:35 pm

2 stops22h 51m

Kastrup Copenhagen

Wed 9/2

8:50 am-8:26 pm

2 stops18h 36m

$792

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 10/7

12:43 pm-11:10 pm

2 stops27h 27m

Kastrup Copenhagen

Thu 10/15

5:00 pm-7:30 pm

2 stops33h 30m

$799

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 5/4

7:05 am-10:50 am

1 stop20h 45m

Kastrup Copenhagen

Tue 5/19

12:45 pm-8:09 pm

1 stop14h 24m

$823

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/31

6:55 pm-8:55 am

2 stops31h 00m

Kastrup Copenhagen

Tue 9/15

12:45 pm-12:13 pm

2 stops30h 28m

$831

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Fri 8/7

12:10 pm-8:55 am

1 stop13h 45m

Kastrup Copenhagen

Sat 8/22

7:50 am-8:26 pm

2 stops19h 36m

$840

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/17

6:55 pm-4:35 pm

2 stops14h 40m

Kastrup Copenhagen

Mon 8/24

6:45 pm-1:25 pm

1 stop25h 40m

$843

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/31

6:55 pm-8:55 am

2 stops31h 00m

Kastrup Copenhagen

Tue 9/15

12:45 pm-8:00 pm

1 stop14h 15m

$844

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

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

You could potentially save up to 35% 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.
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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
British AirwaysPriceFrom $523Free CancellationRating
6.7
7,912 reviews
Search British Airways flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,650 reviews
Search United Airlines flights
DeltaPriceFrom $643Free CancellationRating
7.9
8,458 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $661Free CancellationRating
7.4
1,761 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $666Free CancellationRating
7.1
10,966 reviews
Search Air Canada flights
American AirlinesPriceFrom $684Free CancellationRating
7.1
11,672 reviews
Search American Airlines flights
LufthansaPriceFrom $690Free CancellationRating
6.8
7,948 reviews
Search Lufthansa 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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