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Cheap flights from St. Louis to Denmark from $392

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 11/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Delta Logo
10:45 am - 11:50 amSTL-CPH
18h 05m2 stops
Delta Logo
6:00 am - 5:56 pmCPH-STL
18h 56m2 stops
$555Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
5:28 pm - 6:20 pmSTL-CPH
17h 52m2 stops
Delta Logo
8:10 am - 8:47 pmCPH-STL
19h 37m2 stops
$604Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Multiple Airlines Logo
8:00 am - 12:25 pmSTL-CPH
21h 25m2 stops
Multiple Airlines Logo
2:20 pm - 1:55 pmCPH-STL
30h 35m1 stop
$606Multiple Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
United Airlines Logo
3:14 pm - 5:35 pmSTL-CPH
19h 21m2 stops
United Airlines Logo
10:05 am - 10:45 pmCPH-STL
19h 40m2 stops
$648United Airlines
Find Deal
Sat, Nov 29 - Sat, Dec 6
Lufthansa Logo
5:18 pm - 6:45 pmSTL-CPH
18h 27m2 stops
Lufthansa Logo
6:30 am - 1:30 pmCPH-STL
14h 00m1 stop
$673Lufthansa
Find Deal
Fri, Apr 17 - Fri, May 1
United Airlines Logo
3:50 pm - 6:05 pmSTL-CPH
19h 15m1 stop
United Airlines Logo
2:30 pm - 5:03 pmCPH-STL
33h 33m2 stops
$676United Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
Lufthansa Logo
3:30 pm - 1:55 pmSTL-CPH
15h 25m1 stop
Lufthansa Logo
6:30 am - 1:30 pmCPH-STL
14h 00m1 stop
$681Lufthansa
Find Deal
Fri, Apr 17 - Fri, May 1
Air Canada Logo
5:18 pm - 10:50 amSTL-CPH
34h 32m2 stops
Air Canada Logo
6:30 am - 6:25 pmCPH-STL
18h 55m2 stops
$684Air Canada
Find Deal
Fri, Apr 17 - Fri, May 1
Air Canada Logo
4:05 pm - 9:20 amSTL-CPH
34h 15m2 stops
Air Canada Logo
1:10 pm - 3:29 pmCPH-STL
56h 19m2 stops
$723Air Canada
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Sat, Mar 7 - Sun, Mar 15
Scandinavian Airlines Logo
3:15 pm - 10:40 amSTL-CPH
12h 25m1 stop
Scandinavian Airlines Logo
1:15 pm - 9:02 pmCPH-STL
14h 47m1 stop
$895Scandinavian Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4

Delta flights from St. Louis to Denmark

Our best Delta deals on St. Louis to Denmark flight tickets
Delta
Dec 3
STL10:45 amLambert-St Louis
18h 05m
2 stops
CPH11:50 amKastrup Copenhagen
Dec 7
CPH6:00 amKastrup Copenhagen
18h 56m
2 stops
STL5:56 pmLambert-St Louis
$555
Find similar
Delta
Dec 3
STL5:28 pmLambert-St Louis
17h 52m
2 stops
CPH6:20 pmKastrup Copenhagen
Dec 7
CPH8:10 amKastrup Copenhagen
19h 37m
2 stops
STL8:47 pmLambert-St Louis
$604
Find similar
Delta
Nov 19
STL9:35 amLambert-St Louis
14h 35m
1 stop
CPH7:10 amKastrup Copenhagen
Nov 20
CPH2:15 pmKastrup Copenhagen
33h 54m
2 stops
STL5:09 pmLambert-St Louis
$1,124
Find similar

United Airlines flights from St. Louis to Denmark

Our best United Airlines deals on St. Louis to Denmark flight tickets
United Airlines
Nov 29
STL3:14 pmLambert-St Louis
19h 21m
2 stops
CPH5:35 pmKastrup Copenhagen
Dec 6
CPH10:05 amKastrup Copenhagen
19h 40m
2 stops
STL10:45 pmLambert-St Louis
$648
Find similar
United Airlines
Dec 3
STL3:50 pmLambert-St Louis
19h 15m
1 stop
CPH6:05 pmKastrup Copenhagen
Dec 7
CPH2:30 pmKastrup Copenhagen
33h 33m
2 stops
STL5:03 pmLambert-St Louis
$676
Find similar
United Airlines
Apr 17
STL5:18 pmLambert-St Louis
18h 22m
2 stops
CPH6:40 pmKastrup Copenhagen
Apr 24
CPH12:25 pmKastrup Copenhagen
32h 53m
2 stops
STL2:18 pmLambert-St Louis
$678
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 October 30, 2025.
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

Wed 12/3

10:45 am-11:50 am

2 stops18h 05m

Kastrup Copenhagen

Sun 12/7

6:00 am-5:56 pm

2 stops18h 56m

$555

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 12/3

5:28 pm-6:20 pm

2 stops17h 52m

Kastrup Copenhagen

Sun 12/7

8:10 am-8:47 pm

2 stops19h 37m

$604

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Thu 11/27

8:00 am-12:25 pm

2 stops21h 25m

Kastrup Copenhagen

Thu 12/4

2:20 pm-1:55 pm

1 stop30h 35m

$606

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sat 11/29

3:14 pm-5:35 pm

2 stops19h 21m

Kastrup Copenhagen

Sat 12/6

10:05 am-10:45 pm

2 stops19h 40m

$648

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Fri 4/17

5:18 pm-6:45 pm

2 stops18h 27m

Kastrup Copenhagen

Fri 5/1

6:30 am-1:30 pm

1 stop14h 00m

$673

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 12/3

3:50 pm-6:05 pm

1 stop19h 15m

Kastrup Copenhagen

Sun 12/7

2:30 pm-5:03 pm

2 stops33h 33m

$676

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Fri 4/17

3:30 pm-1:55 pm

1 stop15h 25m

Kastrup Copenhagen

Fri 5/1

6:30 am-1:30 pm

1 stop14h 00m

$681

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Fri 4/17

5:18 pm-10:50 am

2 stops34h 32m

Kastrup Copenhagen

Fri 5/1

6:30 am-6:25 pm

2 stops18h 55m

$684

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sat 3/7

4:05 pm-9:20 am

2 stops34h 15m

Kastrup Copenhagen

Sun 3/15

1:10 pm-3:29 pm

2 stops56h 19m

$723

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Thu 11/27

3:15 pm-10:40 am

1 stop12h 25m

Kastrup Copenhagen

Thu 12/4

1:15 pm-9:02 pm

1 stop14h 47m

$895

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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, January 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 $683. If you aren’t able to travel to Denmark during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $715.

What is the cheapest day to depart on your flight to Denmark?

The cheapest day to depart from St. Louis to Denmark is on a Tuesday. Travelers who choose to depart for Denmark on a Tuesday will often find tickets for as low as $727. On the other hand, Thursday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,340.

What is the cheapest time of day to depart on your flight to Denmark?

Flying to Denmark from St. Louis in the morning is the least expensive time of day to depart. momondo users have found prices as low as $839 when looking at flights departing in the morning. At noon is when there is more demand to fly to Denmark, so prices are often more expensive at around $1,047 per ticket.

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 $848 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 $749 on momondo.

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

You could potentially save up to 8% 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

Direct flights

None
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
DeltaPriceFrom $593Free CancellationRating
7.9
7,998 reviews
Search Delta flights
United AirlinesPriceFrom $598Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
KLMPriceFrom $625Free CancellationRating
7.7
1,406 reviews
Search KLM flights
Scandinavian AirlinesPriceFrom $655Free CancellationRating
7.4
1,548 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $659Free CancellationRating
7.1
10,381 reviews
Search Air Canada flights
British AirwaysPriceFrom $663Free CancellationRating
6.7
7,487 reviews
Search British Airways flights
LufthansaPriceFrom $690Free CancellationRating
6.8
7,541 reviews
Search Lufthansa flights
American AirlinesPriceFrom $733Free CancellationRating
7.2
11,035 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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