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Cheap flights from St. Louis to Denmark from $251

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 4/4. 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
11:59 am - 1:15 pm
STL
-
CPH
18h 16m2 stops
British Airways Logo
1:00 pm - 7:29 pm
CPH
-
STL
37h 29m2 stops
$528British Airways
tir., feb. 17 - tir., feb. 24
Lufthansa Logo
1:15 pm - 5:35 pm
STL
-
CPH
21h 20m2 stops
Lufthansa Logo
6:00 am - 11:59 pm
CPH
-
STL
24h 59m2 stops
$533Lufthansa
man., feb. 2 - man., feb. 9
United Airlines Logo
11:39 am - 12:25 pm
STL
-
CPH
17h 46m2 stops
United Airlines Logo
2:20 pm - 3:29 pm
CPH
-
STL
32h 09m2 stops
$553United Airlines
ons., feb. 18 - ons., feb. 25
Multiple Airlines Logo
4:05 pm - 2:00 pm
STL
-
CPH
14h 55m2 stops
Multiple Airlines Logo
10:05 am - 3:29 pm
CPH
-
STL
35h 24m2 stops
$558Multiple Airlines
lør., mar. 7 - søn., mar. 15
United Airlines Logo
7:41 am - 9:20 am
STL
-
CPH
18h 39m2 stops
United Airlines Logo
10:10 am - 3:29 pm
CPH
-
STL
59h 19m2 stops
$586United Airlines
lør., mar. 7 - fre., mar. 13
Multiple Airlines Logo
4:05 pm - 2:00 pm
STL
-
CPH
14h 55m2 stops
Multiple Airlines Logo
6:50 am - 2:55 pm
CPH
-
STL
14h 05m1 stop
$649Multiple Airlines
lør., mar. 7 - søn., mar. 15
Multiple Airlines Logo
4:05 pm - 7:50 pm
STL
-
CPH
20h 45m2 stops
Multiple Airlines Logo
10:10 am - 3:29 pm
CPH
-
STL
35h 19m2 stops
$651Multiple Airlines
fre., mar. 6 - tor., mar. 12
Multiple Airlines Logo
7:30 am - 4:50 pm
STL
-
CPH
26h 20m2 stops
Multiple Airlines Logo
5:40 pm - 12:21 pm
CPH
-
STL
49h 41m2 stops
$655Multiple Airlines
man., juni 15 - man., juni 22
Multiple Airlines Logo
7:30 am - 4:50 pm
STL
-
CPH
26h 20m2 stops
Multiple Airlines Logo
6:00 am - 12:21 pm
CPH
-
STL
37h 21m2 stops
$674Multiple Airlines
ons., juni 3 - ons., juni 17
Multiple Airlines Logo
4:05 pm - 4:15 pm
STL
-
CPH
17h 10m2 stops
Multiple Airlines Logo
10:10 am - 2:55 pm
CPH
-
STL
34h 45m1 stop
$676Multiple Airlines
fre., mar. 6 - tor., mar. 12

United Airlines flights from St. Louis to Denmark

Our best United Airlines deals on St. Louis to Denmark flight tickets
United Airlines
Feb 18
STL11:39 amLambert-St Louis
17h 46m
2 stops
CPH12:25 pmKastrup Copenhagen
Feb 25
CPH2:20 pmKastrup Copenhagen
32h 09m
2 stops
STL3:29 pmLambert-St Louis
$553
Find similar
United Airlines
Mar 7
STL7:41 amLambert-St Louis
18h 39m
2 stops
CPH9:20 amKastrup Copenhagen
Mar 13
CPH10:10 amKastrup Copenhagen
59h 19m
2 stops
STL3:29 pmLambert-St Louis
$586
Find similar
United Airlines
May 20
STL7:30 amLambert-St Louis
20h 20m
1 stop
CPH10:50 amKastrup Copenhagen
May 27
CPH6:20 amKastrup Copenhagen
14h 05m
1 stop
STL1:25 pmLambert-St Louis
$695
Find similar

British Airways flights from St. Louis to Denmark

Our best British Airways deals on St. Louis to Denmark flight tickets
British Airways
Feb 17
STL11:59 amLambert-St Louis
18h 16m
2 stops
CPH1:15 pmKastrup Copenhagen
Feb 24
CPH1:00 pmKastrup Copenhagen
37h 29m
2 stops
STL7:29 pmLambert-St Louis
$528
Find similar
British Airways
May 21
STL11:20 amLambert-St Louis
17h 15m
1 stop
CPH11:35 amKastrup Copenhagen
Jun 4
CPH3:20 pmKastrup Copenhagen
13h 08m
1 stop
STL9:28 pmLambert-St Louis
$737
Find similar
British Airways
May 27
STL11:20 amLambert-St Louis
21h 30m
2 stops
CPH3:50 pmKastrup Copenhagen
Jun 3
CPH3:20 pmKastrup Copenhagen
13h 08m
1 stop
STL9:28 pmLambert-St Louis
$768
Find similar

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 januar 4, 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

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

tir. 2/17

11:59 am-1:15 pm

2 stops18h 16m

Kastrup Copenhagen

tir. 2/24

1:00 pm-7:29 pm

2 stops37h 29m

$528

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

man. 2/2

1:15 pm-5:35 pm

2 stops21h 20m

Kastrup Copenhagen

man. 2/9

6:00 am-11:59 pm

2 stops24h 59m

$533

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

ons. 2/18

11:39 am-12:25 pm

2 stops17h 46m

Kastrup Copenhagen

ons. 2/25

2:20 pm-3:29 pm

2 stops32h 09m

$553

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

lør. 3/7

4:05 pm-2:00 pm

2 stops14h 55m

Kastrup Copenhagen

søn. 3/15

10:05 am-3:29 pm

2 stops35h 24m

$558

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

lør. 3/7

7:41 am-9:20 am

2 stops18h 39m

Kastrup Copenhagen

fre. 3/13

10:10 am-3:29 pm

2 stops59h 19m

$586

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

lør. 3/7

4:05 pm-2:00 pm

2 stops14h 55m

Kastrup Copenhagen

søn. 3/15

6:50 am-2:55 pm

1 stop14h 05m

$649

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

fre. 3/6

4:05 pm-7:50 pm

2 stops20h 45m

Kastrup Copenhagen

tor. 3/12

10:10 am-3:29 pm

2 stops35h 19m

$651

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

man. 6/15

7:30 am-4:50 pm

2 stops26h 20m

Kastrup Copenhagen

man. 6/22

5:40 pm-12:21 pm

2 stops49h 41m

$655

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

ons. 6/3

7:30 am-4:50 pm

2 stops26h 20m

Kastrup Copenhagen

ons. 6/17

6:00 am-12:21 pm

2 stops37h 21m

$674

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

fre. 3/6

4:05 pm-4:15 pm

2 stops17h 10m

Kastrup Copenhagen

tor. 3/12

10:10 am-2:55 pm

1 stop34h 45m

$676

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

What is the cheapest month to fly to Denmark?

In general, February 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 $651. If you aren’t able to travel to Denmark 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 $667.

How far in advance should I book a flight to Denmark?

You are more likely to see cheaper flights to Denmark from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Denmark for around $810 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denmark from St. Louis for as low as $733 on momondo.

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

You could potentially save up to 22% 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 10m

Direct flights

None
The fastest flight from St. Louis to Denmark takes 13h 10m
There are no direct flights from St. Louis to Denmark. There are no popular flight routes from St. Louis to Denmark.
Search flight deals

  • 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
7,646 reviews
Search British Airways flights
DeltaPriceFrom $593Free CancellationRating
7.9
8,017 reviews
Search Delta flights
United AirlinesPriceFrom $598Free CancellationRating
7.4
9,138 reviews
Search United Airlines flights
KLMPriceFrom $625Free CancellationRating
7.7
1,434 reviews
Search KLM flights
Air CanadaPriceFrom $659Free CancellationRating
7.1
10,592 reviews
Search Air Canada flights
Scandinavian AirlinesPriceFrom $661Free CancellationRating
7.4
1,629 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $690Free CancellationRating
6.8
7,681 reviews
Search Lufthansa flights
American AirlinesPriceFrom $733Free CancellationRating
7.2
11,079 reviews
Search American Airlines 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

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tir. 2/3
tir. 2/10
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