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Cheap flights from St. Louis to Copenhagen from $339

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 Copenhagen departing on 8/30. 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 Copenhagen

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
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
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
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
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
United Airlines Logo
4:50 pm - 8:55 am
STL
-
CPH
57h 05m
2 stops
United Airlines Logo
12:45 pm - 12:02 pm
CPH
-
STL
30h 17m
2 stops
$850United Airlines
Fri, Aug 14 - Tue, Aug 25
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
8:55 am - 10:35 am
STL
-
CPH
18h 40m
1 stop
Multiple Airlines Logo
12:35 pm - 1:25 pm
CPH
-
STL
31h 50m
1 stop
$854Multiple Airlines
Sun, Aug 9 - Mon, Aug 24
Multiple Airlines Logo
8:55 am - 10:35 am
STL
-
CPH
18h 40m
1 stop
Multiple Airlines Logo
12:35 pm - 1:25 pm
CPH
-
STL
31h 50m
1 stop
$855Multiple Airlines
Sun, Aug 9 - Mon, Aug 24

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Lufthansa flights from St. Louis to Copenhagen

Our best Lufthansa deals on St. Louis to Copenhagen 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

Scandinavian Airlines flights from St. Louis to Copenhagen

Our best Scandinavian Airlines deals on St. Louis to Copenhagen 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

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Copenhagen 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 9, 2026.
Use the filters below to find and compare flights from St. Louis to Copenhagen 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

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

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

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

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

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Fri 8/14

4:50 pm-8:55 am

2 stops57h 05m

Kastrup Copenhagen

Tue 8/25

12:45 pm-12:02 pm

2 stops30h 17m

$850

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 8/9

8:55 am-10:35 am

1 stop18h 40m

Kastrup Copenhagen

Mon 8/24

12:35 pm-1:25 pm

1 stop31h 50m

$854

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 8/9

8:55 am-10:35 am

1 stop18h 40m

Kastrup Copenhagen

Mon 8/24

12:35 pm-1:25 pm

1 stop31h 50m

$855

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to Copenhagen from

How to get the cheapest flight ticket from St. Louis to Copenhagen

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 typical price of a round-trip flight between St. Louis and Copenhagen?

What is the cheapest month to fly to Copenhagen?

The cheapest month to fly to Copenhagen from St. Louis is in February. Flight prices, which tend to average around $523, are often lower during this time because this is during the off-season. If you aren’t able to travel to Copenhagen 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 Copenhagen flights?

You could potentially save up to 27% on your flight if you consider stops on a St. Louis to Copenhagen flight.

When to book flights from St. Louis to Copenhagen

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Copenhagen according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Copenhagen (STL to CPH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Copenhagen

Fastest flight time

12h 45m

Direct flights

None
The fastest flight from St. Louis to Copenhagen takes 12h 45m
There are no direct flights from St. Louis to Copenhagen. There are no popular flight routes from St. Louis to Copenhagen.
Search flight deals

Frequently asked questions about flying from St. Louis to Copenhagen

  • How far is Lambert-St Louis to Kastrup Copenhagen by plane?

    The straight-line distance from Lambert-St Louis to Kastrup Copenhagen is 4507.7 mi. In terms of flight time, this usually takes a little over 12h 45m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport?

    Prices for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Kastrup Copenhagen Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Kastrup Copenhagen Airport?

    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 Kastrup Copenhagen Airport.

  • What documentation or ID do you need to fly to Kastrup Copenhagen Airport?

    The travel and health documents required for your trip to Kastrup Copenhagen Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kastrup Copenhagen Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Copenhagen?

Best airlines flying from St. Louis to Copenhagen

Compare and see reviews for airlines that fly from St. Louis to Copenhagen with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,964 reviews
Search United Airlines flights
DeltaPriceFrom $643Free CancellationRating
7.8
8,453 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $655Free CancellationRating
7.4
1,873 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $684Free CancellationRating
7.1
11,796 reviews
Search American Airlines flights
LufthansaPriceFrom $690Free CancellationRating
6.8
8,128 reviews
Search Lufthansa flights
Air CanadaPriceFrom $734Free CancellationRating
7.1
11,323 reviews
Search Air Canada flights

Traveling to a place near Copenhagen?

Book flights to Copenhagen if you plan to visit one of these locations
Kastrup
Roskilde

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Copenhagen?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Copenhagen. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Copenhagen with flexible booking policies on momondo?

Flights from St. Louis to Copenhagen with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Copenhagen?

Once all potential St. Louis to Copenhagen flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Copenhagen right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Copenhagen flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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