Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Denmark from $490

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Denmark departing on 1/14. 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.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
3:50 pm - 11:45 am
STL
-
CPH
12h 55m1 stop
Lufthansa Logo
8:55 am - 10:58 pm
CPH
-
STL
21h 03m2 stops
$490Lufthansa
mié., ene. 14 - mié., ene. 21
Lufthansa Logo
3:50 pm - 6:05 pm
STL
-
CPH
19h 15m1 stop
Lufthansa Logo
6:50 am - 1:55 pm
CPH
-
STL
14h 05m1 stop
$506Lufthansa
mié., ene. 14 - mié., ene. 21
British Airways Logo
1:40 pm - 11:45 am
STL
-
CPH
15h 05m2 stops
British Airways Logo
6:15 am - 6:13 pm
CPH
-
STL
18h 58m2 stops
$538British Airways
sáb., ene. 17 - sáb., ene. 24
United Airlines Logo
3:11 pm - 5:35 pm
STL
-
CPH
19h 24m2 stops
United Airlines Logo
9:50 am - 10:58 pm
CPH
-
STL
20h 08m2 stops
$540United Airlines
vie., ene. 30 - mar., feb. 3
United Airlines Logo
6:40 pm - 5:35 pm
STL
-
CPH
15h 55m2 stops
United Airlines Logo
6:00 am - 9:13 pm
CPH
-
STL
22h 13m2 stops
$545United Airlines
vie., ene. 30 - mar., feb. 3
United Airlines Logo
3:50 pm - 12:00 pm
STL
-
CPH
13h 10m1 stop
United Airlines Logo
9:50 am - 10:58 pm
CPH
-
STL
20h 08m2 stops
$547United Airlines
vie., ene. 30 - mar., feb. 3
United Airlines Logo
6:40 pm - 5:35 pm
STL
-
CPH
15h 55m2 stops
United Airlines Logo
6:55 am - 5:43 pm
CPH
-
STL
17h 48m2 stops
$548United Airlines
vie., ene. 30 - mar., feb. 3
United Airlines Logo
3:50 pm - 12:00 pm
STL
-
CPH
13h 10m1 stop
United Airlines Logo
6:00 am - 5:43 pm
CPH
-
STL
18h 43m2 stops
$552United Airlines
vie., ene. 30 - mar., feb. 3
United Airlines Logo
3:50 pm - 1:45 pm
STL
-
CPH
14h 55m1 stop
United Airlines Logo
6:55 am - 7:27 pm
CPH
-
STL
19h 32m2 stops
$554United Airlines
vie., ene. 30 - mar., feb. 3
Lufthansa Logo
1:15 pm - 1:45 pm
STL
-
CPH
17h 30m2 stops
Lufthansa Logo
12:40 pm - 1:55 pm
CPH
-
STL
32h 15m1 stop
$573Lufthansa
sáb., ene. 17 - sáb., ene. 24

Delta flights from St. Louis to Denmark

Our best Delta deals on St. Louis to Denmark flight tickets
Delta
May 26
STL5:45 pmLambert-St Louis
16h 20m
2 stops
CPH5:05 pmKastrup Copenhagen
Jun 11
CPH9:00 amKastrup Copenhagen
18h 31m
2 stops
STL8:31 pmLambert-St Louis
$798
Find similar
Delta
May 24
STL12:10 pmLambert-St Louis
16h 35m
1 stop
CPH11:45 amKastrup Copenhagen
Jun 8
CPH9:00 amKastrup Copenhagen
14h 40m
1 stop
STL4:40 pmLambert-St Louis
$805
Find similar
Delta
May 24
STL3:50 pmLambert-St Louis
12h 55m
1 stop
CPH11:45 amKastrup Copenhagen
Jun 8
CPH9:00 amKastrup Copenhagen
18h 49m
2 stops
STL8:49 pmLambert-St Louis
$809
Find similar

United Airlines flights from St. Louis to Denmark

Our best United Airlines deals on St. Louis to Denmark flight tickets
United Airlines
Jan 30
STL3:11 pmLambert-St Louis
19h 24m
2 stops
CPH5:35 pmKastrup Copenhagen
Feb 3
CPH9:50 amKastrup Copenhagen
20h 08m
2 stops
STL10:58 pmLambert-St Louis
$540
Find similar
United Airlines
Jan 30
STL6:40 pmLambert-St Louis
15h 55m
2 stops
CPH5:35 pmKastrup Copenhagen
Feb 3
CPH6:00 amKastrup Copenhagen
22h 13m
2 stops
STL9:13 pmLambert-St Louis
$545
Find similar
United Airlines
Jan 30
STL3:50 pmLambert-St Louis
13h 10m
1 stop
CPH12:00 pmKastrup Copenhagen
Feb 3
CPH9:50 amKastrup Copenhagen
20h 08m
2 stops
STL10:58 pmLambert-St Louis
$547
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 diciembre 4, 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

mié. 1/14

3:50 pm-11:45 am

1 stop12h 55m

Kastrup Copenhagen

mié. 1/21

8:55 am-10:58 pm

2 stops21h 03m

$490

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mié. 1/14

3:50 pm-6:05 pm

1 stop19h 15m

Kastrup Copenhagen

mié. 1/21

6:50 am-1:55 pm

1 stop14h 05m

$506

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

sáb. 1/17

1:40 pm-11:45 am

2 stops15h 05m

Kastrup Copenhagen

sáb. 1/24

6:15 am-6:13 pm

2 stops18h 58m

$538

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 1/30

3:11 pm-5:35 pm

2 stops19h 24m

Kastrup Copenhagen

mar. 2/3

9:50 am-10:58 pm

2 stops20h 08m

$540

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 1/30

6:40 pm-5:35 pm

2 stops15h 55m

Kastrup Copenhagen

mar. 2/3

6:00 am-9:13 pm

2 stops22h 13m

$545

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 1/30

3:50 pm-12:00 pm

1 stop13h 10m

Kastrup Copenhagen

mar. 2/3

9:50 am-10:58 pm

2 stops20h 08m

$547

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 1/30

6:40 pm-5:35 pm

2 stops15h 55m

Kastrup Copenhagen

mar. 2/3

6:55 am-5:43 pm

2 stops17h 48m

$548

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 1/30

3:50 pm-12:00 pm

1 stop13h 10m

Kastrup Copenhagen

mar. 2/3

6:00 am-5:43 pm

2 stops18h 43m

$552

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 1/30

3:50 pm-1:45 pm

1 stop14h 55m

Kastrup Copenhagen

mar. 2/3

6:55 am-7:27 pm

2 stops19h 32m

$554

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

sáb. 1/17

1:15 pm-1:45 pm

2 stops17h 30m

Kastrup Copenhagen

sáb. 1/24

12:40 pm-1:55 pm

1 stop32h 15m

$573

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 $654.

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 $819 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 29% 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

11h 09m

Direct flights

None
The fastest flight from St. Louis to Denmark takes 11h 09m
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
9,063 reviews
Search United Airlines flights
KLMPriceFrom $625Free CancellationRating
7.7
1,428 reviews
Search KLM flights
DeltaPriceFrom $643Free CancellationRating
7.9
8,011 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $655Free CancellationRating
7.4
1,591 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $655Free CancellationRating
6.7
7,559 reviews
Search British Airways flights
Air CanadaPriceFrom $659Free CancellationRating
7.1
10,500 reviews
Search Air Canada flights
LufthansaPriceFrom $690Free CancellationRating
6.8
7,612 reviews
Search Lufthansa flights
American AirlinesPriceFrom $733Free CancellationRating
7.2
11,043 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
sáb. 1/3
sáb. 1/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Denmark

Popular cities in Denmark

Popular flights according to clicks in the last 7 days on momondo
Flights to Copenhagenfrom $316
Flights to Billundfrom $407
Flights to Aalborgfrom $400
Flights to Aarhusfrom $373
Flights to Sønderborgfrom $964
Flights to Karupfrom $760
Flights to Esbjergfrom $1,311