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Cheap flights from St. Louis to Copenhagen 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 Copenhagen 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

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.
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
Delta Logo
2:18 pm - 1:20 pm
STL
-
CPH
16h 02m
2 stops
Delta Logo
1:55 pm - 11:01 pm
CPH
-
STL
16h 06m
1 stop
$829Delta
Mon, Aug 17 - Mon, Aug 24
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
Delta Logo
2:18 pm - 1:20 pm
STL
-
CPH
16h 02m
2 stops
Delta Logo
9:00 am - 6:02 pm
CPH
-
STL
16h 02m
2 stops
$834Delta
Mon, Aug 17 - Mon, Aug 24
British Airways Logo
4:29 pm - 11:25 pm
STL
-
CPH
23h 56m
2 stops
British Airways Logo
8:50 am - 7:46 pm
CPH
-
STL
17h 56m
2 stops
$842British Airways
Sat, Sep 12 - Sat, Sep 19
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
$844Lufthansa
Mon, Aug 17 - Mon, Aug 24

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KLM flights from St. Louis to Copenhagen

Our best KLM deals on St. Louis to Copenhagen flight tickets
KLM
Sep 14
STL4:13 pmLambert-St Louis
31h 32m
1 stop
CPH6:45 amKastrup Copenhagen
Sep 21
CPH1:55 pmKastrup Copenhagen
16h 06m
1 stop
STL11:01 pmLambert-St Louis
$865
KLM
Sep 12
STL4:13 pmLambert-St Louis
31h 32m
1 stop
CPH6:45 amKastrup Copenhagen
Sep 19
CPH9:00 amKastrup Copenhagen
14h 55m
1 stop
STL4:55 pmLambert-St Louis
$897

Delta flights from St. Louis to Copenhagen

Our best Delta deals on St. Louis to Copenhagen flight tickets
Delta
Aug 17
STL2:18 pmLambert-St Louis
16h 02m
2 stops
CPH1:20 pmKastrup Copenhagen
Aug 24
CPH1:55 pmKastrup Copenhagen
16h 06m
1 stop
STL11:01 pmLambert-St Louis
$829
Delta
Aug 17
STL2:18 pmLambert-St Louis
16h 02m
2 stops
CPH1:20 pmKastrup Copenhagen
Aug 24
CPH9:00 amKastrup Copenhagen
16h 02m
2 stops
STL6:02 pmLambert-St Louis
$834
Delta
Sep 14
STL1:30 pmLambert-St Louis
15h 20m
2 stops
CPH11:50 amKastrup Copenhagen
Sep 21
CPH1:55 pmKastrup Copenhagen
16h 06m
1 stop
STL11:01 pmLambert-St Louis
$849

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 April 21, 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

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 8/17

2:18 pm-1:20 pm

2 stops16h 02m

Kastrup Copenhagen

Mon 8/24

1:55 pm-11:01 pm

1 stop16h 06m

$829

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

Mon 8/17

2:18 pm-1:20 pm

2 stops16h 02m

Kastrup Copenhagen

Mon 8/24

9:00 am-6:02 pm

2 stops16h 02m

$834

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sat 9/12

4:29 pm-11:25 pm

2 stops23h 56m

Kastrup Copenhagen

Sat 9/19

8:50 am-7:46 pm

2 stops17h 56m

$842

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

$844

Flights are sorted by cheapest round-trip flights first.

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

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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

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

You could potentially save up to 35% 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 09m

Direct flights

None
The fastest flight from St. Louis to Copenhagen takes 11h 09m
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 09m.

  • 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
British AirwaysPriceFrom $523Free CancellationRating
6.7
7,898 reviews
Search British Airways flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,611 reviews
Search United Airlines flights
DeltaPriceFrom $643Free CancellationRating
7.9
8,432 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $661Free CancellationRating
7.3
1,750 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $666Free CancellationRating
7.1
10,945 reviews
Search Air Canada flights
American AirlinesPriceFrom $684Free CancellationRating
7.1
11,646 reviews
Search American Airlines flights
LufthansaPriceFrom $690Free CancellationRating
6.8
7,935 reviews
Search Lufthansa flights

Traveling to a place near Copenhagen?

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

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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.

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