Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Denmark from $343

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 9/14. 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
4:15 pm - 6:25 pm
STL
-
CPH
43h 10m
2 stops
Air Canada Logo
11:35 am - 3:41 pm
CPH
-
STL
35h 06m
2 stops
$781Air Canada
Sun, Nov 1 - Wed, Nov 4
Air Canada Logo
4:15 pm - 6:25 pm
STL
-
CPH
43h 10m
2 stops
Air Canada Logo
11:35 am - 3:41 pm
CPH
-
STL
35h 06m
2 stops
$782Air Canada
Sun, Nov 1 - Wed, Nov 4
United Airlines Logo
4:15 pm - 1:30 pm
STL
-
CPH
38h 15m
2 stops
United Airlines Logo
7:10 am - 1:45 pm
CPH
-
STL
13h 35m
1 stop
$793United Airlines
Sun, Nov 1 - Wed, Nov 4
United Airlines Logo
4:15 pm - 1:30 pm
STL
-
CPH
38h 15m
2 stops
United Airlines Logo
7:10 am - 1:45 pm
CPH
-
STL
13h 35m
1 stop
$794United Airlines
Sun, Nov 1 - Wed, Nov 4
United Airlines Logo
4:15 pm - 9:15 am
STL
-
CPH
34h 00m
2 stops
United Airlines Logo
6:55 am - 3:38 pm
CPH
-
STL
15h 43m
2 stops
$805United Airlines
Sun, Nov 1 - Wed, Nov 4
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
$814Lufthansa
Mon, Nov 9 - Wed, Nov 18
United Airlines Logo
3:15 pm - 12:25 pm
STL
-
CPH
14h 10m
2 stops
United Airlines Logo
11:35 am - 2:30 pm
CPH
-
STL
33h 55m
2 stops
$815United Airlines
Mon, Nov 9 - Wed, Nov 18
United Airlines Logo
3:15 pm - 12:25 pm
STL
-
CPH
14h 10m
2 stops
United Airlines Logo
11:35 am - 2:30 pm
CPH
-
STL
33h 55m
2 stops
$816United Airlines
Mon, Nov 9 - Wed, Nov 18
United Airlines Logo
1:27 pm - 12:25 pm
STL
-
CPH
15h 58m
2 stops
United Airlines Logo
7:10 am - 1:45 pm
CPH
-
STL
13h 35m
1 stop
$828United Airlines
Mon, Nov 9 - Wed, Nov 18
Multiple Airlines Logo
4:15 pm - 12:25 pm
STL
-
CPH
14h 10m
2 stops
Multiple Airlines Logo
8:55 am - 7:30 pm
CPH
-
STL
17h 35m
2 stops
$831Multiple Airlines
Fri, Oct 30 - Fri, Nov 6

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
$814
Lufthansa
Nov 8
STL7:04 pmLambert-St Louis
21h 01m
2 stops
CPH11:05 pmKastrup Copenhagen
Nov 14
CPH7:10 amKastrup Copenhagen
22h 59m
2 stops
STL11:09 pmLambert-St Louis
$872
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
$875

Delta flights from St. Louis to Denmark

Our best Delta deals on St. Louis to Denmark flight tickets
Delta
Oct 29
STL7:05 pmLambert-St Louis
15h 55m
2 stops
CPH5:00 pmKastrup Copenhagen
Nov 6
CPH6:00 amKastrup Copenhagen
17h 54m
2 stops
STL4:54 pmLambert-St Louis
$885
Delta
Jun 29
STL10:20 amLambert-St Louis
18h 05m
2 stops
CPH11:25 amKastrup Copenhagen
Jul 2
CPH1:55 pmKastrup Copenhagen
16h 28m
1 stop
STL11:23 pmLambert-St Louis
$1,180

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 June 23, 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

Sun 11/1

4:15 pm-6:25 pm

2 stops43h 10m

Kastrup Copenhagen

Wed 11/4

11:35 am-3:41 pm

2 stops35h 06m

$781

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 11/1

4:15 pm-6:25 pm

2 stops43h 10m

Kastrup Copenhagen

Wed 11/4

11:35 am-3:41 pm

2 stops35h 06m

$782

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 11/1

4:15 pm-1:30 pm

2 stops38h 15m

Kastrup Copenhagen

Wed 11/4

7:10 am-1:45 pm

1 stop13h 35m

$793

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 11/1

4:15 pm-1:30 pm

2 stops38h 15m

Kastrup Copenhagen

Wed 11/4

7:10 am-1:45 pm

1 stop13h 35m

$794

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 11/1

4:15 pm-9:15 am

2 stops34h 00m

Kastrup Copenhagen

Wed 11/4

6:55 am-3:38 pm

2 stops15h 43m

$805
Quickest 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

$814

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/9

3:15 pm-12:25 pm

2 stops14h 10m

Kastrup Copenhagen

Wed 11/18

11:35 am-2:30 pm

2 stops33h 55m

$815

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/9

3:15 pm-12:25 pm

2 stops14h 10m

Kastrup Copenhagen

Wed 11/18

11:35 am-2:30 pm

2 stops33h 55m

$816

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/9

1:27 pm-12:25 pm

2 stops15h 58m

Kastrup Copenhagen

Wed 11/18

7:10 am-1:45 pm

1 stop13h 35m

$828

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Fri 10/30

4:15 pm-12:25 pm

2 stops14h 10m

Kastrup Copenhagen

Fri 11/6

8:55 am-7:30 pm

2 stops17h 35m

$831

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 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.
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
9,878 reviews
Search United Airlines flights
DeltaPriceFrom $643Free CancellationRating
7.8
8,426 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $655Free CancellationRating
7.4
1,848 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $684Free CancellationRating
7.1
11,746 reviews
Search American Airlines flights
LufthansaPriceFrom $690Free CancellationRating
6.8
8,090 reviews
Search Lufthansa flights
Air CanadaPriceFrom $734Free CancellationRating
7.1
11,244 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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 7/23
Thu 7/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Denmark

Popular cities in Denmark

Popular flights according to clicks in the last 7 days on momondo
Flights to Copenhagenfrom $441
Flights to Billundfrom $528
Flights to Aalborgfrom $563
Flights to Aarhusfrom $559
Flights to Sønderborgfrom $1,038
Flights to Karupfrom $1,271
Flights to Esbjergfrom $1,557