Denmark

$320+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
Jul 16 — Jul 231
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Cheap 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 June 16, 2026.

This Expedia deal was found by Cheapflights users on 6/13. 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.
Wed 11/114:15 pm
STL
-
CPH
1 stop11h 05m
Multiple Airlines
Tue 11/178:55 am
CPH
-
STL
2 stops20h 34m
Multiple Airlines
Deal found 6/13$756
This Expedia deal was found by Cheapflights users on 6/13. 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 11/92:50 pm
STL
-
CPH
2 stops17h 00m
British Airways
Wed 11/188:55 am
CPH
-
STL
2 stops17h 35m
British Airways
Deal found 6/13$769
This Expedia deal was found by Cheapflights users on 6/15. 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.
Wed 8/192:40 pm
STL
-
CPH
2 stops38h 05m
Multiple Airlines
Tue 8/253:20 pm
CPH
-
STL
1 stop15h 14m
Multiple Airlines
Deal found 6/15$778
This Air Canada deal was found by Cheapflights users on 6/15. 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.
Sun 11/14:15 pm
STL
-
CPH
2 stops38h 15m
Air Canada
Wed 11/411:35 am
CPH
-
STL
2 stops33h 43m
Air Canada
Deal found 6/15$782
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sun 11/14:15 pm
STL
-
CPH
2 stops38h 15m
United Airlines
Wed 11/47:10 am
CPH
-
STL
1 stop13h 35m
United Airlines
Deal found 6/11$793
This Gotogate deal was found by Cheapflights users on 6/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:15 pm
STL
-
CPH
2 stops14h 55m
Multiple Airlines
Wed 11/1811:35 am
CPH
-
STL
1 stop34h 55m
Multiple Airlines
Deal found 6/13$805
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Mon 11/910:23 am
STL
-
CPH
2 stops18h 02m
United Airlines
Wed 11/1811:35 am
CPH
-
STL
2 stops31h 45m
United Airlines
Deal found 6/15$816
This FlightHub deal was found by Cheapflights users on 6/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:00 pm
STL
-
CPH
2 stops20h 35m
Lufthansa
Wed 11/187:10 am
CPH
-
STL
1 stop13h 35m
Lufthansa
Deal found 6/14$821
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 12/84:15 pm
STL
-
CPH
1 stop11h 05m
United Airlines
Fri 12/117:10 am
CPH
-
STL
1 stop13h 35m
United Airlines
Deal found 6/11$824
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:45 pm
STL
-
CPH
2 stops15h 35m
American Airlines
Tue 11/178:55 am
CPH
-
STL
2 stops17h 35m
American Airlines
Deal found 6/13$830

Find 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 June 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$756
(Expedia)

One-way from

$320
(Kiwi.com)

Popular in

April

Cheapest in

February

Average price

$998
Provider with most accurate pricing for Lambert-St Louis-Kastrup Copenhagen flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Kastrup Copenhagen flights.
From Lambert-St Louis to Denmark
One-way flight from Lambert-St Louis to Denmark
Highest demand for flights based on searches. 8% potential increase in price ($75 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 June 16, 2026.
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

Cheapest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 11/1

4:15 pm-1:30 pm

2 stops38h 15m

Kastrup Copenhagen

Wed 11/4

7:10 am-1:45 pm

1 stop13h 35m

$793

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 11/9

10:23 am-11:25 am

2 stops18h 02m

Kastrup Copenhagen

Wed 11/18

11:35 am-12:20 pm

2 stops31h 45m

$816

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 9/14

2:40 pm-10:50 am

1 stop13h 10m

Kastrup Copenhagen

Mon 9/21

9:40 am-3:38 pm

2 stops36h 58m

$903

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/31

6:00 am-6:45 am

2 stops17h 45m

Kastrup Copenhagen

Tue 9/15

9:00 am-8:35 pm

2 stops18h 35m

$905

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/31

11:22 am-11:35 am

1 stop17h 13m

Kastrup Copenhagen

Tue 9/15

8:50 am-7:07 pm

2 stops17h 17m

$911

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 9/13

5:30 pm-10:50 am

2 stops34h 20m

Kastrup Copenhagen

Mon 9/21

10:30 am-1:25 pm

1 stop33h 55m

$912

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Thu 9/10

6:45 am-6:45 am

2 stops17h 00m

Kastrup Copenhagen

Wed 9/30

9:00 am-11:36 pm

2 stops21h 36m

$917
Quickest round-trip

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 9/13

3:50 pm-11:45 am

1 stop12h 55m

Kastrup Copenhagen

Sat 9/19

1:55 pm-10:28 pm

1 stop15h 33m

$923
Cheapest one-way

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 7/12

6:34 pm-1:05 pm

3 stops35h 31m

$320

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sat 7/18

4:09 pm-10:00 pm

2 stops46h 51m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 13 resultsSorted by cheapest first
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, September is the cheapest month in which you can book a flight from St. Louis to Denmark (average of $250). Flying from St. Louis to Denmark in April is currently the most expensive (average of $860). 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.

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 June 16, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican 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.

Comfort

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 $911, United Airlines can have you in Denmark from St. Louis in 17h 13m. 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, September is the cheapest month in which you can book a flight from St. Louis to Denmark (average of $250). Flying from St. Louis to Denmark in April is currently the most expensive (average of $860). 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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Top 6 airlines flying from St. Louis to Denmark

Discover the top 6 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 June 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$592Average$900FlexibilityNo cancel feeOn-time69%
DeltaCheapest$643Average$811FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$655Average$949FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$684Average$924FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$690Average$983FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$761Average$950FlexibilityNo cancel feeOn-time67%

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