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St. Louis

$458+ Cheap flights from Denmark to St. Louis (STL)

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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — STL
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Denmark to St. Louis

Keep the following information in mind while searching for Denmark to St. Louis flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$458
(Flysmarter)

Popular in

December

Cheapest in

October

Average price

$524
Provider with most accurate pricing for Kastrup Copenhagen-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Kastrup Copenhagen-Lambert-St Louis flights.
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From Denmark to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Denmark to St. Louis

Cheapest flights from Denmark to St. Louis
Explore the most affordable flight options available from Denmark to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This Flysmarter deal was found by Cheapflights users on 3/30. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/171:15 pmCPH - STL
2 stops17h 18mBritish Airways
Sun 4/276:00 pmSTL - CPH
2 stops21h 50mBritish Airways
Deal found 3/30$458
This United Airlines deal was found by Cheapflights users on 3/30. 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 5/812:45 pmCPH - STL
1 stop13h 58mUnited Airlines
Tue 5/136:30 amSTL - CPH
2 stops27h 50mUnited Airlines
Deal found 3/30$511
This American Airlines deal was found by Cheapflights users on 3/31. 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 4/231:15 pmCPH - STL
2 stops15h 57mAmerican Airlines
Sat 5/312:55 pmSTL - CPH
2 stops16h 40mAmerican Airlines
Deal found 3/31$521
This Booking.com deal was found by Cheapflights users on 3/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/81:00 pmCPH - STL
1 stop30h 36mMultiple Airlines
Tue 5/137:30 amSTL - CPH
1 stop16h 35mMultiple Airlines
Deal found 3/30$814

Cheapflights Fare Finder

Customize your flight search to find flights from Denmark to St. Louis 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 March 31, 2025.
Use the filters below to find and compare flights from Denmark to St. Louis that are best for you.

Fly from

Denmark

Fly to

St. Louis

Route

Depart

Return

Price

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 4/17

1:15 pm-11:33 pm

2 stops17h 18m

Lambert-St Louis

Sun 4/27

6:00 pm-10:50 pm

2 stops21h 50m

$458

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 5/8

12:45 pm-7:43 pm

1 stop13h 58m

Lambert-St Louis

Tue 5/13

6:30 am-5:20 pm

2 stops27h 50m

$511

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Wed 4/23

1:15 pm-10:12 pm

2 stops15h 57m

Lambert-St Louis

Sat 5/3

12:55 pm-12:35 pm

2 stops16h 40m

$521

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 5/8

1:00 pm-12:36 pm

1 stop30h 36m

Lambert-St Louis

Tue 5/13

7:30 am-7:05 am

1 stop16h 35m

$814

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Denmark 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 Denmark to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Denmark to St. Louis (average of $311). Flying from Denmark to St. Louis in March is currently the most expensive (average of $356). 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 DK to STL?

Find hourly flight availability from Denmark to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denmark to St. Louis as you normally would.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated March 31, 2025.
United Airlines
7.4
Good
8,614 reviews

Entertainment

7.0

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!
United Airlines
7.4
Good
8,614 reviews
United Airlines
7.4
Good
8,614 reviews

Entertainment

7.0

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,614 reviews

Entertainment

7.0

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!
British Airways
6.6
Okay
6,713 reviews
United Airlines
7.4
Good
8,614 reviews

Entertainment

7.0

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Patti,Feb 2025

FCO - EWR

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

Related info for your journey

Find useful and relevant information for your journey from Denmark to St. Louis. 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 into for flights to St. Louis from Denmark?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Denmark.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denmark to St. Louis 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 Denmark to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Denmark to St. Louis (average of $311). Flying from Denmark to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Denmark?

Book flights to Denmark if you plan to visit one of these locations
Fenton
Maryland Heights
Fairview Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Glencoe
Alton
Farmington
Chesterfield

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Denmark to St. Louis

Discover the top 4 airlines that operate flights from Denmark to St. Louis. 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$431Average$588FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$431Average$618FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$481Average$628FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$522Average$601FlexibilityNo cancel feeOn-time71%
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