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St. Louis

$497+ Cheap flights from Copenhagen (CPH) to St. Louis (STL)

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — STL
feb. 4 — feb. 111
mar. 2/4
mar. 2/11
1 adult, Economy
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The best prices from Kastrup Copenhagen to Lambert-St Louis are usually found in October or April, booked 49 days in advance, depart on a Saturday or Thursday and return on a Tuesday

Cheap flight deals from Copenhagen to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Copenhagen (CPH) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$790
(SmartFares)

One-way from

$497
(Thrive Travel)

Popular in

December

Cheapest in

October

Average price

$486
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 Kastrup Copenhagen to Lambert-St Louis
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One-way flight from Kastrup Copenhagen to Lambert-St Louis
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Highest demand for flights based on searches. 5% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Copenhagen to St. Louis

Cheapest flights from Copenhagen to St. Louis
Explore the most affordable flight options available from Copenhagen to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 30, 2025.

This SmartFares deal was found by Cheapflights users on 1/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/76:45 amCPH - STL
2 stops22h 09mFinnair
vie. 5/94:49 pmSTL - CPH
2 stops40h 26mFinnair
Deal found 1/30$790
This KAYAK deal was found by Cheapflights users on 1/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/71:25 pmCPH - STL
1 stop17h 13mScandinavian Airlines
vie. 5/94:00 pmSTL - CPH
1 stop11h 35mScandinavian Airlines
Deal found 1/30$1,174
This Priceline deal was found by Cheapflights users on 1/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/71:15 pmCPH - STL
2 stops15h 39mMultiple Airlines
vie. 5/92:30 pmSTL - CPH
1 stop13h 20mMultiple Airlines
Deal found 1/30$1,181

Find flights from Copenhagen to St. Louis within your budget

Customize your flight search to find flights from Copenhagen 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 enero 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

mié. 5/7

6:45 am-9:54 pm

2 stops22h 09m

Lambert-St Louis

vie. 5/9

4:49 pm-4:15 pm

2 stops40h 26m

$790

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

mié. 5/7

1:25 pm-11:38 pm

1 stop17h 13m

Lambert-St Louis

vie. 5/9

4:00 pm-10:35 am

1 stop11h 35m

$1,174

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

mié. 5/7

1:15 pm-9:54 pm

2 stops15h 39m

Lambert-St Louis

vie. 5/9

2:30 pm-10:50 am

1 stop13h 20m

$1,181

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

sáb. 5/3

7:50 am-9:28 pm

2 stops20h 38m

$497

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

sáb. 5/3

8:05 am-6:22 pm

3 stops41h 17m

$541

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

sáb. 5/3

12:25 pm-12:36 pm

1 stop31h 11m

$1,217

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

sáb. 5/3

12:25 pm-7:43 pm

1 stop14h 18m

$1,228

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

  • Most accurate provider: When it comes to deals on Copenhagen-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Copenhagen-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Copenhagen-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Copenhagen-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Copenhagen-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Travel insights for flights from Copenhagen to St. Louis

Get recent, data-driven insights about flights from Copenhagen to St. Louis including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Copenhagen to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Copenhagen to St. Louis. Price data was last updated on January 24, 2025.

Booking 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from Copenhagen to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Copenhagen to St. Louis (average of $311). Flying from Copenhagen 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 CPH to STL?

Find hourly flight availability from Copenhagen 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 enero 30, 2025.

It’s optimal to fly from Copenhagen to St. Louis in the morning. By choosing this option you can save up to 4% on the cost of your flight, compared to a flight at noon.

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 enero 30, 2025.
Finnair
7.6
Good
1,285 reviews

Food

6.7

Entertainment

6.9

Overall

7.6

Boarding

7.7

Crew

8.1

Comfort

7.5

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Finnair
7.6
Good
1,285 reviews
Finnair
7.6
Good
1,285 reviews

Food

6.7

Entertainment

6.9

Overall

7.6

Boarding

7.7

Crew

8.1

Comfort

7.5

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

United Airlines
7.4
Good
8,913 reviews
Finnair
7.6
Good
1,285 reviews

Food

6.7

Entertainment

6.9

Overall

7.6

Boarding

7.7

Crew

8.1

Comfort

7.5

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Scandinavian Airlines
7.3
Good
1,315 reviews
Finnair
7.6
Good
1,285 reviews

Food

6.7

Entertainment

6.9

Overall

7.6

Boarding

7.7

Crew

8.1

Comfort

7.5

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Air Canada
7.0
Good
8,640 reviews
Finnair
7.6
Good
1,285 reviews

Food

6.7

Entertainment

6.9

Overall

7.6

Boarding

7.7

Crew

8.1

Comfort

7.5

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

British Airways
6.6
Okay
6,795 reviews
Finnair
7.6
Good
1,285 reviews

Food

6.7

Entertainment

6.9

Overall

7.6

Boarding

7.7

Crew

8.1

Comfort

7.5

Reviews

1 / 20

4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Related info for your journey

Find useful and relevant information for your journey from Copenhagen 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 are the cheapest airlines flying from Copenhagen to St. Louis round-trip?

    Finnair, at $790, was found to be the cheapest airline from Copenhagen to St. Louis. An alternate airline flying to your destination would be Scandinavian Airlines.

  • What are the cheapest airlines to fly from Copenhagen to St. Louis one-way?

    The cheapest airlines for a one-way flight from Copenhagen to St. Louis are British Airways ($497), United Airlines ($1,217), and Air Canada ($1,228).

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Copenhagen to St. Louis (average of $311). Flying from Copenhagen 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 Copenhagen?

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

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Alternative routes for Copenhagen to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Copenhagen to St. Louis

Discover the top 3 airlines that operate flights from Copenhagen 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 enero 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$407Average$655FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$431Average$571FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$473Average$619FlexibilityNo cancel feeOn-time71%
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