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Cheap flights from St. Louis to Denmark from $499

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 12/22. 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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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.
Delta Logo
6:55 pm - 7:50 pmSTL-CPH
17h 55m2 stops
Delta Logo
1:55 pm - 11:01 pmCPH-STL
16h 06m1 stop
$604Delta
Find Deal
vie., ene. 16 - jue., may. 14
United Airlines Logo
11:20 am - 11:25 amSTL-CPH
17h 05m2 stops
United Airlines Logo
6:40 am - 6:25 pmCPH-STL
18h 45m2 stops
$611United Airlines
Find Deal
vie., ene. 16 - jue., may. 14
United Airlines Logo
3:50 pm - 6:15 pmSTL-CPH
19h 25m1 stop
United Airlines Logo
12:25 pm - 3:16 pmCPH-STL
33h 51m1 stop
$619United Airlines
Find Deal
vie., ene. 16 - jue., may. 14
Lufthansa Logo
6:40 pm - 5:35 pmSTL-CPH
15h 55m2 stops
Lufthansa Logo
10:10 am - 11:59 pmCPH-STL
20h 49m2 stops
$673Lufthansa
Find Deal
dom., ene. 11 - jue., ene. 15
Lufthansa Logo
3:50 pm - 11:45 amSTL-CPH
12h 55m1 stop
Lufthansa Logo
10:10 am - 11:59 pmCPH-STL
20h 49m2 stops
$681Lufthansa
Find Deal
dom., ene. 11 - jue., ene. 15
Finnair Logo
11:55 am - 4:15 pmSTL-CPH
21h 20m2 stops
Finnair Logo
7:20 pm - 7:29 pmCPH-STL
31h 09m2 stops
$694Finnair
Find Deal
dom., ene. 18 - mié., ene. 21
Delta Logo
2:07 pm - 2:40 pmSTL-CPH
17h 33m2 stops
Delta Logo
2:15 pm - 5:56 pmCPH-STL
34h 41m2 stops
$716Delta
Find Deal
mié., dic. 3 - dom., dic. 7
Delta Logo
11:40 am - 2:40 pmSTL-CPH
20h 00m2 stops
Delta Logo
2:15 pm - 5:56 pmCPH-STL
34h 41m2 stops
$717Delta
Find Deal
mié., dic. 3 - dom., dic. 7
Delta Logo
4:32 pm - 2:40 pmSTL-CPH
15h 08m2 stops
Delta Logo
9:55 am - 9:02 pmCPH-STL
18h 07m2 stops
$718Delta
Find Deal
jue., dic. 4 - jue., dic. 11
Delta Logo
2:07 pm - 2:40 pmSTL-CPH
17h 33m2 stops
Delta Logo
8:10 am - 8:47 pmCPH-STL
19h 37m2 stops
$719Delta
Find Deal
mié., dic. 3 - dom., dic. 7

Lufthansa flights from St. Louis to Denmark

Our best Lufthansa deals on St. Louis to Denmark flight tickets
Lufthansa
Jan 11
STL6:40 pmLambert-St Louis
15h 55m
2 stops
CPH5:35 pmKastrup Copenhagen
Jan 15
CPH10:10 amKastrup Copenhagen
20h 49m
2 stops
STL11:59 pmLambert-St Louis
$673
Find similar
Lufthansa
Jan 11
STL3:50 pmLambert-St Louis
12h 55m
1 stop
CPH11:45 amKastrup Copenhagen
Jan 15
CPH10:10 amKastrup Copenhagen
20h 49m
2 stops
STL11:59 pmLambert-St Louis
$681
Find similar
Lufthansa
Mar 7
STL6:30 pmLambert-St Louis
34h 15m
2 stops
CPH11:45 amKastrup Copenhagen
Mar 15
CPH7:10 pmKastrup Copenhagen
33h 39m
2 stops
STL10:49 pmLambert-St Louis
$743
Find similar

Finnair flights from St. Louis to Denmark

Our best Finnair deals on St. Louis to Denmark flight tickets
Finnair
Jan 18
STL11:55 amLambert-St Louis
21h 20m
2 stops
CPH4:15 pmKastrup Copenhagen
Jan 21
CPH7:20 pmKastrup Copenhagen
31h 09m
2 stops
STL7:29 pmLambert-St Louis
$694
Find similar
Finnair
Dec 26
STL11:41 amLambert-St Louis
23h 54m
2 stops
CPH6:35 pmKastrup Copenhagen
Jan 2
CPH6:55 amKastrup Copenhagen
19h 27m
2 stops
STL7:22 pmLambert-St Louis
$1,699
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 noviembre 13, 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

vie. 1/16

6:55 pm-7:50 pm

2 stops17h 55m

Kastrup Copenhagen

jue. 5/14

1:55 pm-11:01 pm

1 stop16h 06m

$604

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 1/16

11:20 am-11:25 am

2 stops17h 05m

Kastrup Copenhagen

jue. 5/14

6:40 am-6:25 pm

2 stops18h 45m

$611

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 1/16

3:50 pm-6:15 pm

1 stop19h 25m

Kastrup Copenhagen

jue. 5/14

12:25 pm-3:16 pm

1 stop33h 51m

$619

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

dom. 1/11

6:40 pm-5:35 pm

2 stops15h 55m

Kastrup Copenhagen

jue. 1/15

10:10 am-11:59 pm

2 stops20h 49m

$673

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

dom. 1/11

3:50 pm-11:45 am

1 stop12h 55m

Kastrup Copenhagen

jue. 1/15

10:10 am-11:59 pm

2 stops20h 49m

$681

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

dom. 1/18

11:55 am-4:15 pm

2 stops21h 20m

Kastrup Copenhagen

mié. 1/21

7:20 pm-7:29 pm

2 stops31h 09m

$694

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mié. 12/3

2:07 pm-2:40 pm

2 stops17h 33m

Kastrup Copenhagen

dom. 12/7

2:15 pm-5:56 pm

2 stops34h 41m

$716

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mié. 12/3

11:40 am-2:40 pm

2 stops20h 00m

Kastrup Copenhagen

dom. 12/7

2:15 pm-5:56 pm

2 stops34h 41m

$717

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

jue. 12/4

4:32 pm-2:40 pm

2 stops15h 08m

Kastrup Copenhagen

jue. 12/11

9:55 am-9:02 pm

2 stops18h 07m

$718

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mié. 12/3

2:07 pm-2:40 pm

2 stops17h 33m

Kastrup Copenhagen

dom. 12/7

8:10 am-8:47 pm

2 stops19h 37m

$719

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 $668. If you aren’t able to travel to Denmark during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $704.

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 $831 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 $743 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
United AirlinesPriceFrom $598Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
KLMPriceFrom $625Free CancellationRating
7.7
1,411 reviews
Search KLM flights
DeltaPriceFrom $643Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $655Free CancellationRating
7.4
1,575 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $655Free CancellationRating
6.7
7,521 reviews
Search British Airways flights
Air CanadaPriceFrom $659Free CancellationRating
7.1
10,449 reviews
Search Air Canada flights
LufthansaPriceFrom $690Free CancellationRating
6.8
7,572 reviews
Search Lufthansa flights
American AirlinesPriceFrom $733Free CancellationRating
7.2
11,051 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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