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Denmark

$366+ Cheap flights from St. Louis (STL) to Denmark

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from St. Louis to Denmark

Keep the following information in mind while searching for St. Louis to Denmark flight deals. Data was last updated septiembre 11, 2025.

Round-trip from

$588
(United Airlines)

One-way from

$366
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$779
From Lambert-St Louis to Denmark
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One-way flight from Lambert-St Louis to Denmark
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Highest demand for flights based on searches. 7% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Denmark

Cheapest flights from St. Louis to Denmark
Explore the most affordable flight options available from St. Louis to Denmark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/154:05 pmSTL - CPH
1 stop11h 45mUnited Airlines
jue. 12/117:05 amCPH - STL
2 stops39h 24mUnited Airlines
Deal found 9/11$588
This United deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/156:00 amSTL - CPH
2 stops21h 50mMultiple Airlines
jue. 12/117:05 amCPH - STL
2 stops39h 24mMultiple Airlines
Deal found 9/11$592
This Lufthansa deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/263:50 pmSTL - CPH
1 stop14h 45mLufthansa
vie. 12/56:50 amCPH - STL
1 stop14h 05mLufthansa
Deal found 9/10$601
This Lufthansa deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/266:43 pmSTL - CPH
2 stops15h 52mLufthansa
mié. 12/36:50 amCPH - STL
1 stop14h 05mLufthansa
Deal found 9/10$602
This KAYAK deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/2512:31 pmSTL - CPH
2 stops22h 04mLufthansa
mié. 12/36:50 amCPH - STL
1 stop14h 05mLufthansa
Deal found 9/10$607
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/254:05 pmSTL - CPH
2 stops33h 55mAir Canada
jue. 12/42:20 pmCPH - STL
2 stops32h 09mAir Canada
Deal found 9/10$608
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/2612:31 pmSTL - CPH
2 stops18h 34mUnited Airlines
vie. 12/510:10 amCPH - STL
2 stops16h 38mUnited Airlines
Deal found 9/10$609
This Lufthansa deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/263:50 pmSTL - CPH
1 stop14h 45mLufthansa
jue. 12/47:05 amCPH - STL
2 stops16h 58mLufthansa
Deal found 9/10$611
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/294:05 pmSTL - CPH
2 stops38h 30mAir Canada
mar. 12/92:20 pmCPH - STL
2 stops32h 09mAir Canada
Deal found 9/10$614
This SmartFares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/273:15 pmSTL - CPH
1 stop12h 25mScandinavian Airlines
jue. 12/41:15 pmCPH - STL
1 stop14h 48mScandinavian Airlines
Deal found 9/10$619
This KAYAK deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/256:43 pmSTL - CPH
2 stops21h 22mLufthansa
mar. 12/27:00 pmCPH - STL
1 stop25h 55mLufthansa
Deal found 9/10$626

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from St. Louis to Denmark that are best for you.

Fly from

St. Louis

Fly to

Denmark

Route

Depart

Return

Price

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mié. 10/15

4:05 pm-10:50 am

1 stop11h 45m

Kastrup Copenhagen

jue. 12/11

7:05 am-3:29 pm

2 stops39h 24m

$588

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mié. 10/15

6:00 am-10:50 am

2 stops21h 50m

Kastrup Copenhagen

jue. 12/11

7:05 am-3:29 pm

2 stops39h 24m

$592

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mié. 11/26

3:50 pm-6:05 pm

1 stop19h 15m

Kastrup Copenhagen

mié. 12/3

6:50 am-1:55 pm

1 stop14h 05m

$601

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mar. 11/25

4:05 pm-9:00 am

2 stops33h 55m

Kastrup Copenhagen

jue. 12/4

2:20 pm-3:29 pm

2 stops32h 09m

$608

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mié. 12/3

4:05 pm-9:00 am

2 stops33h 55m

Kastrup Copenhagen

mar. 12/9

6:50 am-3:29 pm

2 stops39h 39m

$608

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

dom. 11/30

11:05 am-2:00 pm

2 stops19h 55m

Kastrup Copenhagen

mar. 12/9

6:50 am-9:40 pm

2 stops21h 50m

$609

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

mié. 11/26

11:05 am-2:05 pm

2 stops20h 00m

Kastrup Copenhagen

mié. 12/3

10:05 am-7:48 pm

2 stops16h 43m

$609

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 11/28

3:14 pm-5:35 pm

2 stops19h 21m

Kastrup Copenhagen

vie. 12/5

6:55 am-1:55 pm

1 stop14h 00m

$652

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

vie. 11/28

8:40 am-11:20 am

2 stops19h 40m

Kastrup Copenhagen

jue. 12/4

1:00 pm-7:29 pm

2 stops37h 29m

$660

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

dom. 10/26

4:50 pm-11:45 am

1 stop12h 55m

Kastrup Copenhagen

dom. 11/2

10:05 am-7:39 pm

2 stops16h 34m

$661

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 results
1
2

Best time to book a flight from St. Louis to Denmark

Have a flexible travel schedule? Discover the best time to fly to Denmark from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Denmark

What is the cheapest month to book a flight from St. Louis to Denmark?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Denmark (average of $523). Flying from St. Louis to Denmark in June is currently the most expensive (average of $910). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to DK?

Find hourly flight availability from St. Louis to Denmark. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

When flying from St. Louis to Denmark, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Denmark

Get insights into the airlines that provide service to Denmark. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denmark. Reviews last updated septiembre 11, 2025.
Peruse reviews from past customers who have flown with Delta, Scandinavian Airlines, and United Airlines from St. Louis to Denmark to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.4
Good
1,484 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Denmark. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Denmark?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Denmark.

  • How long is the flight from St. Louis to Denmark?

    For as low as $588, United Airlines can have you in Denmark from St. Louis in 11h 45m. The distance from St. Louis to Denmark is about 4511 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from St. Louis to Denmark that include hotel bookings?

    Yes. In addition to deals on St. Louis to Denmark flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Denmark?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Denmark.

  • Can I find deals for business class flights from St. Louis to Denmark?

    Yes. Cheapflights offers flight deals from St. Louis to Denmark by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Denmark?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Denmark (average of $523). Flying from St. Louis to Denmark in June is currently the most expensive (average of $910). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Denmark

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Top 8 airlines flying from St. Louis to Denmark

Discover the top 8 airlines that operate flights from St. Louis to Denmark. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$593Average$811FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$625Average$960FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$626Average$798FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$654Average$896FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$655Average$957FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$659Average$950FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$663Average$1,073FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$821Average$1,067FlexibilityNo cancel feeOn-time71%

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