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Denmark

$598+ Cheap flights from St. Louis (STL) to Denmark

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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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 October 29, 2025.

This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:32 pmSTL - CPH
2 stops15h 08mDelta
Sun 12/76:00 amCPH - STL
2 stops18h 10mDelta
Deal found 10/26$598
This Expedia deal was found by Cheapflights users on 10/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:43 pmSTL - CPH
2 stops15h 52mLufthansa
Tue 12/27:00 pmCPH - STL
1 stop25h 55mLufthansa
Deal found 10/27$606
This United deal was found by Cheapflights users on 10/27. 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.
Mon 11/245:24 pmSTL - CPH
2 stops17h 11mMultiple Airlines
Tue 12/22:20 pmCPH - STL
2 stops40h 22mMultiple Airlines
Deal found 10/27$616
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/271:10 pmSTL - CPH
2 stops15h 15mUnited Airlines
Thu 12/41:10 pmCPH - STL
2 stops17h 32mUnited Airlines
Deal found 10/28$697
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Wed 12/33:50 pmSTL - CPH
1 stop14h 45mUnited Airlines
Sun 12/710:05 amCPH - STL
2 stops31h 02mUnited Airlines
Deal found 10/26$707
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sun 11/98:00 amSTL - CPH
2 stops26h 35mUnited Airlines
Sun 11/166:50 amCPH - STL
2 stops22h 32mUnited Airlines
Deal found 10/27$737
This KAYAK deal was found by Cheapflights users on 10/28. 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.
Thu 11/2710:00 amSTL - CPH
2 stops16h 20mLufthansa
Thu 12/412:30 pmCPH - STL
1 stop32h 25mLufthansa
Deal found 10/28$760
This SmartFares deal was found by Cheapflights users on 10/28. 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.
Thu 11/273:15 pmSTL - CPH
1 stop12h 25mScandinavian Airlines
Thu 12/41:15 pmCPH - STL
1 stop14h 47mScandinavian Airlines
Deal found 10/28$895

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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$598
(Delta)

Popular in

June

Cheapest in

January

Average price

$715
Provider with most accurate pricing for Lambert-St Louis-Kastrup Copenhagen flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Kastrup Copenhagen flights.
Search Deals
From Lambert-St Louis to Denmark
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($127 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 29, 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

Wed 12/3

4:32 pm-2:40 pm

2 stops15h 08m

Kastrup Copenhagen

Sun 12/7

6:00 am-5:10 pm

2 stops18h 10m

$598

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/24

6:43 pm-5:35 pm

2 stops15h 52m

Kastrup Copenhagen

Tue 12/2

7:00 pm-1:55 pm

1 stop25h 55m

$606

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

Thu 11/27

1:10 pm-11:25 am

2 stops15h 15m

Kastrup Copenhagen

Thu 12/4

1:10 pm-11:42 pm

2 stops17h 32m

$697

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 12/3

3:50 pm-1:35 pm

1 stop14h 45m

Kastrup Copenhagen

Sun 12/7

10:05 am-10:07 am

2 stops31h 02m

$707

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 11/9

8:00 am-5:35 pm

2 stops26h 35m

Kastrup Copenhagen

Sun 11/16

6:50 am-10:22 pm

2 stops22h 32m

$737

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/24

6:43 pm-9:55 pm

3 stops20h 12m

Kastrup Copenhagen

Tue 12/2

11:00 am-1:55 pm

2 stops33h 55m

$811

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

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, January is the cheapest month in which you can book a flight from St. Louis to Denmark (average of $550). Flying from St. Louis to Denmark in June is currently the most expensive (average of $856). 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 October 29, 2025.

It’s typically best to fly out from St. Louis to Denmark at noon. Doing so could potentially save you 30% on the flight price compared to flying in the evening, which is usually more expensive.

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 October 29, 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
7.9
Good
7,993 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,993 reviews
Delta
7.9
Good
7,993 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Scandinavian Airlines
7.4
Good
1,545 reviews
Delta
7.9
Good
7,993 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,993 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,030 reviews
Delta
7.9
Good
7,993 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air Canada
7.1
Good
10,376 reviews
Delta
7.9
Good
7,993 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 $598, Delta can have you in Denmark from St. Louis in 15h 08m. 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, January is the cheapest month in which you can book a flight from St. Louis to Denmark (average of $550). Flying from St. Louis to Denmark in June is currently the most expensive (average of $856). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$593Average$811FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$598Average$808FlexibilityNo cancel feeOn-time69%
KLMCheapest$625Average$755FlexibilityNo cancel feeOn-time75%
Scandinavian AirlinesCheapest$655Average$957FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$659Average$950FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$663Average$1,076FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$690Average$800FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$733Average$1,056FlexibilityNo cancel feeOn-time71%

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