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

Departing from Copenhagen to St. Louis will take you 14h 05m. The distance from Copenhagen to St. Louis is about 4511 mi.

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

United Airlines, at $528, 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 11% cheaper than the other options available to this destination.

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 Lufthansa ($455), British Airways ($519), and Delta ($650).

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.

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).

What is the cheapest time of day to fly from CPH to STL?

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

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.

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.

$345+ Flights from Copenhagen to St. Louis

Q: How much does it cost to fly round-trip from Copenhagen to St. Louis?

Airfare is below average for this route at the moment. Copenhagen to St. Louis flights typically cost between $541 and $702 in January. The cheapest round-trip price found within the last 3 days was $537 on Lufthansa (Jan 23-Jan 28).

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1. Tell us where you want to go

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2. Select your favorite providers

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Cheapflights Tip: The best prices from Kastrup Copenhagen to Lambert-St Louis are usually found in February or April, booked 82 days in advance, depart on a Saturday or Thursday and return on a Tuesday

Cheap 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 December 16, 2025.

Wed 12/176:55 amCPH - STL

2 stops22h 50mUnited Airlines

Thu 1/19:55 amSTL - CPH

2 stops18h 30mUnited Airlines

Deal found 12/15

$792

Wed 12/176:55 amCPH - STL

2 stops36h 32mUnited Airlines

Sat 1/36:35 pmSTL - CPH

2 stops33h 50mUnited Airlines

Deal found 12/16

$876

Wed 12/176:50 amCPH - STL

1 stop14h 05mLufthansa

Thu 1/16:35 pmSTL - CPH

2 stops16h 00mLufthansa

Deal found 12/15

$1,419

Wed 12/179:55 amCPH - STL

2 stops30h 15mDelta

Sat 1/35:55 amSTL - CPH

1 stop21h 45mDelta

Deal found 12/14

$1,440

Best flights from Copenhagen to St. Louis
Discover carefully curated flight deals from Copenhagen to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

Fri 1/236:50 amCPH - STL

1 stop14h 05mLufthansa

Wed 1/2812:44 pmSTL - CPH

2 stops21h 51mLufthansa

Deal found 12/15

$537

Fri 1/306:50 amCPH - STL

1 stop14h 05mUnited Airlines

Fri 2/66:30 amSTL - CPH

2 stops22h 55mUnited Airlines

Deal found 12/16

$572

Tue 1/1310:10 amCPH - STL

2 stops19h 48mUnited Airlines

Fri 1/169:57 amSTL - CPH

2 stops21h 08mUnited Airlines

Deal found 12/16

$574

Mon 1/1210:10 amCPH - STL

2 stops18h 50mUnited Airlines

Sun 1/181:15 pmSTL - CPH

2 stops17h 45mUnited Airlines

Deal found 12/16

$574

Thu 1/227:05 amCPH - STL

2 stops22h 53mUnited Airlines

Mon 1/263:11 pmSTL - CPH

2 stops15h 49mUnited Airlines

Deal found 12/14

$574

Mon 1/1210:10 amCPH - STL

2 stops19h 48mUnited Airlines

Sat 1/174:49 pmSTL - CPH

2 stops17h 46mUnited Airlines

Deal found 12/16

$578

Tue 1/1310:10 amCPH - STL

2 stops18h 03mUnited Airlines

Sat 1/1711:20 amSTL - CPH

2 stops23h 15mUnited Airlines

Deal found 12/16

$578

Mon 1/1210:10 amCPH - STL

2 stops19h 48mUnited Airlines

Fri 1/163:50 pmSTL - CPH

1 stop19h 25mUnited Airlines

Deal found 12/16

$579

Tue 1/1310:10 amCPH - STL

2 stops18h 03mUnited Airlines

Sun 1/183:50 pmSTL - CPH

1 stop12h 55mUnited Airlines

Deal found 12/16

$579

Sat 1/1012:40 pmCPH - STL

2 stops40h 20mUnited Airlines

Fri 1/168:05 amSTL - CPH

2 stops23h 00mUnited Airlines

Deal found 12/16

$595

Last-minute flights from Copenhagen to St. Louis
Discover last-minute flight deals from Copenhagen to St. Louis. Data last updated December 16, 2025 and is based on user searches.

Wed 1/710:30 amCPH - STL

2 stops31h 21mAmerican Airlines

Fri 1/165:04 pmSTL - CPH

2 stops19h 06mAmerican Airlines

Deal found 12/16

$668

Thu 1/810:30 amCPH - STL

2 stops31h 21mAmerican Airlines

Fri 1/163:37 pmSTL - CPH

2 stops20h 33mAmerican Airlines

Deal found 12/16

$577

Thu 1/810:30 amCPH - STL

2 stops31h 21mAmerican Airlines

Sun 1/189:33 amSTL - CPH

2 stops21h 47mAmerican Airlines

Deal found 12/16

$617

Sat 1/1012:40 pmCPH - STL

2 stops40h 20mUnited Airlines

Fri 1/168:05 amSTL - CPH

2 stops23h 00mUnited Airlines

Deal found 12/16

$595

Sun 1/118:05 amCPH - STL

2 stops22h 20mDelta

Mon 1/196:25 amSTL - CPH

2 stops19h 55mDelta

Deal found 12/16

$638

Mon 1/1210:10 amCPH - STL

2 stops19h 48mUnited Airlines

Thu 1/1512:44 pmSTL - CPH

2 stops18h 16mUnited Airlines

Deal found 12/16

$574

Mon 1/1210:10 amCPH - STL

2 stops19h 48mUnited Airlines

Sat 1/174:49 pmSTL - CPH

2 stops17h 46mUnited Airlines

Deal found 12/16

$578

Mon 1/1210:10 amCPH - STL

2 stops19h 48mUnited Airlines

Fri 1/163:50 pmSTL - CPH

1 stop19h 25mUnited Airlines

Deal found 12/16

$579

Fri 1/236:50 amCPH - STL

1 stop14h 05mLufthansa

Wed 1/2812:44 pmSTL - CPH

2 stops21h 51mLufthansa

Deal found 12/15

$537

Fri 1/306:50 amCPH - STL

1 stop14h 05mUnited Airlines

Fri 2/66:30 amSTL - CPH

2 stops22h 55mUnited Airlines

Deal found 12/16

$572

One-way flights from Copenhagen to St. Louis
Search for one-way flight options from Copenhagen to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 16, 2025.

Fri 5/298:50 amCPH - STL

2 stops16h 30mFinnair

Deal found 12/14

$345

Fri 5/292:00 pmCPH - STL

1 stop13h 12mMultiple Airlines

Deal found 12/14

$346

Mon 2/96:45 amCPH - STL

2 stops18h 49mBritish Airways

Deal found 12/14

$1,812

Mon 2/912:55 pmCPH - STL

2 stops16h 45mMultiple Airlines

Deal found 12/14

$1,864

Mon 2/91:15 pmCPH - STL

1 stop33h 52mAir France

Deal found 12/14

$4,619

Find flight deals from Copenhagen to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$537 (Ticket)
One-way from	$345 (Finnair)
Popular in	July
Cheapest in	February
Average price	$623

Provider with most accurate pricing for Kastrup Copenhagen-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Kastrup Copenhagen-Lambert-St Louis flights.

Search Deals

From Kastrup Copenhagen to Lambert-St Louis

Search Deals

One-way flight from Kastrup Copenhagen to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($52 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 1/23

6:50 am-1:55 pm

1 stop14h 05m

Lambert-St Louis

Wed 1/28

12:44 pm-5:35 pm

2 stops21h 51m

$537

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 1/30

6:50 am-1:55 pm

1 stop14h 05m

Lambert-St Louis

Fri 2/6

6:30 am-12:25 pm

2 stops22h 55m

$572

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Tue 1/13

10:10 am-10:58 pm

2 stops19h 48m

Lambert-St Louis

Fri 1/16

9:57 am-2:05 pm

2 stops21h 08m

$574

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 1/12

10:10 am-10:00 pm

2 stops18h 50m

Lambert-St Louis

Sun 1/18

1:15 pm-2:00 pm

2 stops17h 45m

$574

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 1/22

7:05 am-10:58 pm

2 stops22h 53m

Lambert-St Louis

Mon 1/26

3:11 pm-2:00 pm

2 stops15h 49m

$574

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 1/12

10:10 am-10:58 pm

2 stops19h 48m

Lambert-St Louis

Sat 1/17

4:49 pm-5:35 pm

2 stops17h 46m

$578

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Tue 1/13

10:10 am-9:13 pm

2 stops18h 03m

Lambert-St Louis

Sat 1/17

11:20 am-5:35 pm

2 stops23h 15m

$578

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 1/12

10:10 am-10:58 pm

2 stops19h 48m

Lambert-St Louis

Fri 1/16

3:50 pm-6:15 pm

1 stop19h 25m

$579

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Tue 1/13

10:10 am-9:13 pm

2 stops18h 03m

Lambert-St Louis

Sun 1/18

3:50 pm-11:45 am

1 stop12h 55m

$579

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Sat 1/10

12:40 pm-10:00 pm

2 stops40h 20m

Lambert-St Louis

Fri 1/16

8:05 am-2:05 pm

2 stops23h 00m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 15 results

Compare providers for flights from Copenhagen to St. Louis

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 December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust 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?

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, February is the cheapest month in which you can book a flight from Copenhagen to St. Louis (average of $417). Flying from Copenhagen to St. Louis in July is currently the most expensive (average of $515). 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.

How much does it cost to fly round-trip from Copenhagen to St. Louis?

Reviews of airlines servicing St. Louis

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

9,094 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

United Airlines

7.4

Good

9,094 reviews

United Airlines

7.4

Good

9,094 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

Air Canada

7.1

Good

10,527 reviews

United Airlines

7.4

Good

9,094 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

Related info for your journey

How long is the flight from Copenhagen to St. Louis?
Departing from Copenhagen to St. Louis will take you 14h 05m. The distance from Copenhagen to St. Louis is about 4511 mi.
What are the cheapest airlines flying from Copenhagen to St. Louis round-trip?
United Airlines, at $528, 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 11% cheaper than the other options available to this destination.
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 Lufthansa ($455), British Airways ($519), and Delta ($650).
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, February is the cheapest month in which you can book a flight from Copenhagen to St. Louis (average of $417). Flying from Copenhagen to St. Louis in July is currently the most expensive (average of $515). 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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Other flights to St. Louis

Top 2 airlines flying from Copenhagen to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$528	Average$554	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$567	Average$588	FlexibilityNo cancel fee	On-time67%

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$345+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Copenhagen to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Kastrup Copenhagen to Lambert-St Louis are usually found in February or April, booked 82 days in advance, depart on a Saturday or Thursday and return on a Tuesday

Cheap flight deals from Copenhagen to St. Louis

Cheapest flights from Copenhagen to St. LouisExplore 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 December 16, 2025.

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 December 16, 2025.

Find flight deals from Copenhagen to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

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?

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

How much does it cost to fly round-trip from Copenhagen to St. Louis?

Reviews of airlines servicing St. Louis

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.

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?

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

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

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

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

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

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

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Copenhagen to St. Louis

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Top 2 airlines flying from Copenhagen to St. Louis

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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 December 16, 2025.