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Cheap flights from St. Louis to Copenhagen from $328

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 10/14. 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 Copenhagen

Cheap round-trip flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
1:30 pm - 10:00 pm
STL
-
CPH
25h 30m
2 stops
Virgin Atlantic Logo
9:00 am - 11:39 pm
CPH
-
STL
21h 39m
2 stops
$419Virgin Atlantic
Thu, Oct 8 - Thu, Oct 15
Air Canada Logo
4:05 pm - 12:00 pm
STL
-
CPH
36h 55m
2 stops
Air Canada Logo
11:35 am - 12:06 pm
CPH
-
STL
31h 31m
2 stops
$781Air 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
Multiple Airlines Logo
7:04 pm - 11:05 pm
STL
-
CPH
21h 01m
2 stops
Multiple Airlines Logo
11:35 am - 12:06 pm
CPH
-
STL
31h 31m
2 stops
$809Multiple Airlines
Mon, Nov 9 - Wed, Nov 18
Lufthansa Logo
7:04 pm - 11:05 pm
STL
-
CPH
21h 01m
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
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
Multiple Airlines Logo
5:34 pm - 11:45 am
STL
-
CPH
11h 11m
1 stop
Multiple Airlines Logo
8:50 am - 8:26 pm
CPH
-
STL
18h 36m
2 stops
$835Multiple Airlines
Sun, Aug 16 - Sat, Aug 29
Multiple Airlines Logo
8:00 am - 8:55 am
STL
-
CPH
17h 55m
2 stops
Multiple Airlines Logo
8:50 am - 8:26 pm
CPH
-
STL
18h 36m
2 stops
$839Multiple 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
8:50 am - 7:07 pm
CPH
-
STL
17h 17m
2 stops
$854Multiple Airlines
Tue, Sep 8 - Tue, Sep 15

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Air Canada flights from St. Louis to Copenhagen

Our best Air Canada deals on St. Louis to Copenhagen flight tickets
Air Canada
Nov 1
STL4:05 pmLambert-St Louis
36h 55m
2 stops
CPH12:00 pmKastrup Copenhagen
Nov 4
CPH11:35 amKastrup Copenhagen
31h 31m
2 stops
STL12:06 pmLambert-St Louis
$781
Air Canada
Aug 31
STL6:54 pmLambert-St Louis
31h 01m
2 stops
CPH8:55 amKastrup Copenhagen
Sep 15
CPH12:45 pmKastrup Copenhagen
30h 12m
2 stops
STL11:57 amLambert-St Louis
$911
Air Canada
Sep 7
STL12:10 pmLambert-St Louis
15h 40m
2 stops
CPH10:50 amKastrup Copenhagen
Sep 16
CPH6:20 amKastrup Copenhagen
19h 21m
2 stops
STL6:41 pmLambert-St Louis
$925

United Airlines flights from St. Louis to Copenhagen

Our best United Airlines deals on St. Louis to Copenhagen flight tickets
United Airlines
Nov 1
STL4:15 pmLambert-St Louis
38h 15m
2 stops
CPH1:30 pmKastrup Copenhagen
Nov 4
CPH7:10 amKastrup Copenhagen
13h 35m
1 stop
STL1:45 pmLambert-St Louis
$793
United Airlines
Nov 9
STL3:15 pmLambert-St Louis
14h 10m
2 stops
CPH12:25 pmKastrup Copenhagen
Nov 18
CPH11:35 amKastrup Copenhagen
33h 55m
2 stops
STL2:30 pmLambert-St Louis
$815
United Airlines
Oct 29
STL4:15 pmLambert-St Louis
11h 05m
1 stop
CPH9:20 amKastrup Copenhagen
Nov 5
CPH11:35 amKastrup Copenhagen
31h 31m
2 stops
STL12:06 pmLambert-St Louis
$861

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 June 25, 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

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Thu 10/8

1:30 pm-10:00 pm

2 stops25h 30m

Kastrup Copenhagen

Thu 10/15

9:00 am-11:39 pm

2 stops21h 39m

$419

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 11/1

4:05 pm-12:00 pm

2 stops36h 55m

Kastrup Copenhagen

Wed 11/4

11:35 am-12:06 pm

2 stops31h 31m

$781

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

Mon 11/9

7:04 pm-11:05 pm

2 stops21h 01m

Kastrup Copenhagen

Wed 11/18

11:35 am-12:06 pm

2 stops31h 31m

$809

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/9

7:04 pm-11:05 pm

2 stops21h 01m

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

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
Quickest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 8/16

5:34 pm-11:45 am

1 stop11h 11m

Kastrup Copenhagen

Sat 8/29

8:50 am-8:26 pm

2 stops18h 36m

$835

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 8/16

8:00 am-8:55 am

2 stops17h 55m

Kastrup Copenhagen

Sat 8/29

8:50 am-8:26 pm

2 stops18h 36m

$839

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 9/8

12:10 pm-11:05 am

2 stops15h 55m

Kastrup Copenhagen

Tue 9/15

8:50 am-7:07 pm

2 stops17h 17m

$854

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

11h 11m

Direct flights

None
The fastest flight from St. Louis to Copenhagen takes 11h 11m
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 11h 11m.

  • 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
9,892 reviews
Search United Airlines flights
DeltaPriceFrom $643Free CancellationRating
7.8
8,442 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $655Free CancellationRating
7.4
1,854 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $684Free CancellationRating
7.1
11,761 reviews
Search American Airlines flights
LufthansaPriceFrom $690Free CancellationRating
6.8
8,094 reviews
Search Lufthansa flights
Air CanadaPriceFrom $734Free CancellationRating
7.1
11,259 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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