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Cheap flights from Denmark to St. Louis from $417

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denmark to St. Louis departing on 8/25. 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 Denmark to St. Louis

Recent round-trip flight deals from Denmark to St. Louis

Enter your travel dates to find the best prices.
Air Canada Logo
6:40 am - 8:09 pm
CPH
-
STL
20h 29m
2 stops
Air Canada Logo
1:05 pm - 8:55 am
STL
-
CPH
12h 50m
1 stop
$656Air Canada
Mon, Jun 1 - Sun, Jun 7
Multiple Airlines Logo
1:55 pm - 11:21 pm
CPH
-
STL
16h 26m
1 stop
Multiple Airlines Logo
11:13 am - 11:45 am
STL
-
CPH
17h 32m
1 stop
$663Multiple Airlines
Mon, Jun 1 - Sun, Jun 7
Air Canada Logo
12:45 pm - 12:21 pm
CPH
-
STL
30h 36m
1 stop
Air Canada Logo
1:20 pm - 8:55 am
STL
-
CPH
12h 35m
1 stop
$664Air Canada
Fri, Jun 19 - Fri, Jun 26
Air Canada Logo
12:15 pm - 12:21 pm
CPH
-
STL
31h 06m
2 stops
Air Canada Logo
1:20 pm - 8:55 am
STL
-
CPH
12h 35m
1 stop
$667Air Canada
Fri, Jun 19 - Fri, Jun 26
Air France Logo
6:00 am - 3:57 pm
BLL
-
STL
16h 57m
2 stops
Air France Logo
3:42 pm - 1:40 pm
STL
-
BLL
14h 58m
2 stops
$668Air France
Fri, Sep 4 - Fri, Sep 25
Air Canada Logo
6:40 am - 8:09 pm
CPH
-
STL
20h 29m
2 stops
Air Canada Logo
2:15 pm - 11:05 am
STL
-
CPH
13h 50m
2 stops
$669Air Canada
Mon, Jun 1 - Sun, Jun 7
United Airlines Logo
10:20 am - 9:09 pm
BLL
-
STL
17h 49m
2 stops
United Airlines Logo
11:45 am - 9:40 am
STL
-
BLL
14h 55m
2 stops
$671United Airlines
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
6:30 am - 6:38 pm
BLL
-
STL
19h 08m
2 stops
United Airlines Logo
11:45 am - 9:40 am
STL
-
BLL
14h 55m
2 stops
$675United Airlines
Thu, Nov 5 - Mon, Nov 9
Lufthansa Logo
6:00 am - 1:25 pm
BLL
-
STL
14h 25m
1 stop
Lufthansa Logo
3:30 pm - 6:10 pm
STL
-
BLL
19h 40m
1 stop
$714Lufthansa
Fri, Sep 4 - Fri, Sep 25
Lufthansa Logo
6:00 am - 1:25 pm
BLL
-
STL
14h 25m
1 stop
Lufthansa Logo
3:30 pm - 2:10 pm
STL
-
BLL
15h 40m
1 stop
$889Lufthansa
Wed, Jun 3 - Wed, Jun 10

Lufthansa flights from Denmark to St. Louis

Our best Lufthansa deals on Denmark to St. Louis flight tickets
Lufthansa
Sep 4
BLL6:00 amBillund
14h 25m
1 stop
STL1:25 pmLambert-St Louis
Sep 25
STL3:30 pmLambert-St Louis
19h 40m
1 stop
BLL6:10 pmBillund
$714
Lufthansa
Jun 3
BLL6:00 amBillund
14h 25m
1 stop
STL1:25 pmLambert-St Louis
Jun 10
STL3:30 pmLambert-St Louis
15h 40m
1 stop
BLL2:10 pmBillund
$889

Air Canada flights from Denmark to St. Louis

Our best Air Canada deals on Denmark to St. Louis flight tickets
Air Canada
Jun 1
CPH6:40 amKastrup Copenhagen
20h 29m
2 stops
STL8:09 pmLambert-St Louis
Jun 7
STL1:05 pmLambert-St Louis
12h 50m
1 stop
CPH8:55 amKastrup Copenhagen
$656
Air Canada
Jun 1
CPH6:40 amKastrup Copenhagen
20h 29m
2 stops
STL8:09 pmLambert-St Louis
Jun 7
STL1:05 pmLambert-St Louis
12h 50m
1 stop
CPH8:55 amKastrup Copenhagen
$664
Air Canada
Jun 1
CPH6:40 amKastrup Copenhagen
20h 29m
2 stops
STL8:09 pmLambert-St Louis
Jun 7
STL2:15 pmLambert-St Louis
13h 50m
2 stops
CPH11:05 amKastrup Copenhagen
$669

momondo Fare Finder

 
Customize your flight search to find flights from Denmark to St. Louis 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 May 10, 2026.
Use the filters below to find and compare flights from Denmark to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

6:40 am-8:09 pm

2 stops20h 29m

Lambert-St Louis

Sun 6/7

1:05 pm-8:55 am

1 stop12h 50m

$656

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

1:55 pm-11:21 pm

1 stop16h 26m

Lambert-St Louis

Sun 6/7

11:13 am-11:45 am

1 stop17h 32m

$663

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 6/19

12:45 pm-12:21 pm

1 stop30h 36m

Lambert-St Louis

Fri 6/26

1:20 pm-8:55 am

1 stop12h 35m

$664

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 6/19

12:15 pm-12:21 pm

2 stops31h 06m

Lambert-St Louis

Fri 6/26

1:20 pm-8:55 am

1 stop12h 35m

$667

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Fri 9/4

6:00 am-3:57 pm

2 stops16h 57m

Lambert-St Louis

Fri 9/25

3:42 pm-1:40 pm

2 stops14h 58m

$668

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

6:40 am-8:09 pm

2 stops20h 29m

Lambert-St Louis

Sun 6/7

2:15 pm-11:05 am

2 stops13h 50m

$669

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Thu 11/5

10:20 am-9:09 pm

2 stops17h 49m

Lambert-St Louis

Mon 11/9

11:45 am-9:40 am

2 stops14h 55m

$671

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Thu 11/5

6:30 am-6:38 pm

2 stops19h 08m

Lambert-St Louis

Mon 11/9

11:45 am-9:40 am

2 stops14h 55m

$675

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Fri 9/4

6:00 am-1:25 pm

1 stop14h 25m

Lambert-St Louis

Fri 9/25

3:30 pm-6:10 pm

1 stop19h 40m

$714
Quickest round-trip

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Wed 6/3

6:00 am-1:25 pm

1 stop14h 25m

Lambert-St Louis

Wed 6/10

3:30 pm-2:10 pm

1 stop15h 40m

$889

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 St. Louis from

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

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 St. Louis?

In general, October is the cheapest month to fly from Denmark to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $271. The month of September is another great option to travel to St. Louis, with average flight prices from Denmark averaging around $414.

How far in advance should I book a flight from Denmark to St. Louis?

You are more likely to see cheaper flights to St. Louis from Denmark when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $663 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Denmark for as low as $464 on momondo.

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

You could potentially save up to 3% on your flight if you consider stops on a Denmark to St. Louis flight.

Cheap Denmark to St. Louis flight deals and tips

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

Fastest flight time

15h 05m

Direct flights

None
The fastest flight from Denmark to St. Louis takes 15h 05m
There are no direct flights from Denmark to St. Louis. There are no popular flight routes from Denmark to St. Louis.
Search flight deals

Frequently asked questions about flying from Denmark to St. Louis

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denmark to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis 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 Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Denmark to St. Louis

Compare and see reviews for airlines that fly from Denmark to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $528Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
LufthansaPriceFrom $594Free CancellationRating
6.8
7,985 reviews
Search Lufthansa flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

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

Finding the right flight to St. Louis from Denmark is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Denmark to St. Louis flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Denmark and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to St. Louis from Denmark are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your St. Louis trip

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