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St. Louis

$285+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — STL
dic. 18 — dic. 251
jue. 12/18
jue. 12/25
1 adult, Economy
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Cheapflights Tip: The best prices from Kastrup Copenhagen to Lambert-St Louis are usually found in April or February, booked 82 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 noviembre 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$520
(Ticket)

One-way from

$285
(Ticket)

Popular in

July

Cheapest in

April

Average price

$542
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. 11% potential increase in price ($72 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 November 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 noviembre 18, 2025.

This Lufthansa deal was found by Cheapflights users on 11/17. 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.
jue. 12/47:05 amCPH - STL
2 stops16h 58mLufthansa
lun. 12/81:00 pmSTL - CPH
2 stops21h 35mLufthansa
Deal found 11/17$544
This United Airlines deal was found by Cheapflights users on 11/16. 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.
jue. 11/2010:10 amCPH - STL
2 stops31h 41mUnited Airlines
jue. 12/1111:25 amSTL - CPH
2 stops19h 35mUnited Airlines
Deal found 11/16$730
This United Airlines deal was found by Cheapflights users on 11/17. 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. 12/1710:05 amCPH - STL
2 stops35h 21mUnited Airlines
jue. 1/18:05 amSTL - CPH
2 stops26h 30mUnited Airlines
Deal found 11/17$893
This Lufthansa deal was found by Cheapflights users on 11/16. 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.
jue. 11/202:20 pmCPH - STL
1 stop30h 35mLufthansa
jue. 12/111:00 pmSTL - CPH
2 stops13h 20mLufthansa
Deal found 11/16$1,084
This Scandinavian Airlines deal was found by Cheapflights users on 11/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/41:15 pmCPH - STL
1 stop14h 47mScandinavian Airlines
lun. 12/81:57 pmSTL - CPH
1 stop13h 43mScandinavian Airlines
Deal found 11/17$1,105
This lastminute.com deal was found by Cheapflights users on 11/16. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/201:15 pmCPH - STL
1 stop15h 03mScandinavian Airlines
jue. 12/1111:40 amSTL - CPH
1 stop16h 00mScandinavian Airlines
Deal found 11/16$1,220

Cheapflights Fare Finder

 
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 noviembre 18, 2025.
Use the filters below to find and compare flights from Copenhagen to St. Louis that are best for you.

Fly from

Copenhagen

Fly to

St. Louis

Route

Depart

Return

Price

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

mar. 5/5

6:45 am-6:17 pm

2 stops18h 32m

Lambert-St Louis

dom. 5/10

10:00 pm-10:50 pm

1 stop17h 50m

$520

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

mar. 5/5

10:55 am-7:30 pm

1 stop15h 35m

Lambert-St Louis

dom. 5/10

10:00 pm-10:00 am

1 stop29h 00m

$520

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

jue. 12/4

7:05 am-5:03 pm

2 stops16h 58m

Lambert-St Louis

lun. 12/8

1:00 pm-5:35 pm

2 stops21h 35m

$544

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

vie. 5/8

8:50 am-9:48 pm

2 stops19h 58m

Lambert-St Louis

sáb. 5/16

4:39 pm-4:15 pm

2 stops16h 36m

$557

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

vie. 5/8

6:30 am-6:25 pm

2 stops18h 55m

Lambert-St Louis

sáb. 5/16

4:05 pm-10:50 am

1 stop11h 45m

$638

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

vie. 5/8

6:30 am-1:30 pm

1 stop14h 00m

Lambert-St Louis

sáb. 5/16

4:05 pm-10:50 am

1 stop11h 45m

$639

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

mié. 12/17

10:05 am-2:26 pm

2 stops35h 21m

Lambert-St Louis

jue. 1/1

8:05 am-5:35 pm

2 stops26h 30m

$893

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

jue. 12/4

1:15 pm-9:02 pm

1 stop14h 47m

Lambert-St Louis

lun. 12/8

1:57 pm-10:40 am

1 stop13h 43m

$1,105

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

mar. 5/5

7:45 am-6:17 pm

2 stops17h 32m

$285

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

mar. 5/5

3:40 pm-1:30 pm

3 stops28h 50m

$1,055

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Compare providers for flights from Copenhagen to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Copenhagen to St. Louis in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.

Cheapflights Insights

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

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 November 14, 2025.

Booking 82 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, May is the cheapest month in which you can book a flight from Copenhagen to St. Louis (average of $387). Flying from Copenhagen to St. Louis in July is currently the most expensive (average of $514). 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 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 noviembre 18, 2025.
See what other customers who have flown with United Airlines and Air Canada from Copenhagen to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,019 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,019 reviews
United Airlines
7.4
Good
9,019 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,462 reviews
United Airlines
7.4
Good
9,019 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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.

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

    Departing from Copenhagen to St. Louis will take you 15h 35m. The distance from Copenhagen to St. Louis is about 4511 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Copenhagen to St. Louis round-trip?

    United Airlines, at $485, was found to be the cheapest airline from Copenhagen to St. Louis. An alternate airline flying to your destination would be Air Canada. Users have found that United Airlines is 15% cheaper than the other options available to this destination.

  • 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, May is the cheapest month in which you can book a flight from Copenhagen to St. Louis (average of $387). Flying from Copenhagen to St. Louis in July is currently the most expensive (average of $514). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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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 2 airlines flying from Copenhagen to St. Louis

Discover the top 2 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 noviembre 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$485Average$594FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$567Average$588FlexibilityNo cancel feeOn-time67%

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