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St. Louis

$663+ Cheap flights from Copenhagen (CPH) to St. Louis (STL)

CPH — STL
Dec 5 — Dec 121
Sat 12/5
Sat 12/12
1 adult, Economy
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Cheap flight deals from Copenhagen to St. Louis

Cheapest flights from Copenhagen to St. Louis

Fri 11/207:15 am -
1 stop13h 30m
Wed 11/256:50 pm -
2 stops15h 45m
Deal found 11/3$663
Wed 12/97:15 am -
1 stop13h 30m
Wed 12/307:18 am -
2 stops19h 07m
Deal found 11/1$725
Wed 12/97:15 am -
1 stop13h 30m
Tue 1/57:29 am -
2 stops23h 01m
Deal found 11/1$726
Fri 11/207:15 am -
1 stop13h 30m
Wed 11/251:00 pm -
2 stops17h 30m
Deal found 11/4$727
Wed 12/97:15 am -
1 stop13h 30m
Thu 12/311:13 pm -
2 stops21h 17m
Deal found 11/1$728

Find flight deals from Copenhagen to St. Louis

Most accurate provider

eDreams
2 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$663
(Ticket)

Popular in

June

Cheapest in

February

Average price

$715
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
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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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

Cheapest round-trip

CopenhagenSt. Louis

CPH Kastrup Copenhagen - STL Lambert-St Louis

CPHSTL

Kastrup Copenhagen

Wed 12/9

7:15 am-1:45 pm

1 stop13h 30m

Lambert-St Louis

Wed 12/30

7:18 am-9:25 am

2 stops19h 07m

$725
Quickest round-trip

CopenhagenSt. Louis

CPH Kastrup Copenhagen - STL Lambert-St Louis

CPHSTL

Kastrup Copenhagen

Fri 11/20

7:15 am-1:45 pm

1 stop13h 30m

Lambert-St Louis

Wed 11/25

1:00 pm-1:30 pm

2 stops17h 30m

$727

CopenhagenSt. Louis

CPH Kastrup Copenhagen - STL Lambert-St Louis

CPHSTL

Kastrup Copenhagen

Wed 12/9

2:15 pm-10:59 pm

2 stops15h 44m

Lambert-St Louis

Mon 1/4

7:18 am-12:00 pm

2 stops21h 42m

$732

CopenhagenSt. Louis

CPH Kastrup Copenhagen - STL Lambert-St Louis

CPHSTL

Kastrup Copenhagen

Sat 1/30

7:15 am-7:28 pm

2 stops19h 13m

Lambert-St Louis

Wed 2/3

3:40 pm-6:25 pm

1 stop19h 45m

$733

CopenhagenSt. Louis

CPH Kastrup Copenhagen - STL Lambert-St Louis

CPHSTL

Kastrup Copenhagen

Fri 12/18

6:45 am-5:20 pm

2 stops17h 35m

Lambert-St Louis

Fri 12/25

6:20 am-9:00 am

2 stops19h 40m

$746

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Sorted by cheapest first

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 November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy2 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 90-95% 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

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 45 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 $616). Flying from Copenhagen to St. Louis in June is currently the most expensive (average of $844). 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?

Airfare is typical for this route at the moment.

Copenhagen to St. Louis flights typically cost between $640 and $785 in November.
The cheapest round-trip price found within the last 5 days was $663 on Lufthansa (Nov 20-Nov 25).

Reviews of airlines servicing St. Louis

See what other customers who have flown with United Airlines and Lufthansa 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
7.3
Good
10,462 reviews

Comfort

7.3

Food

6.7

Boarding

7.7

Crew

8.1

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
United Airlines
7.3
Good
10,462 reviews
United Airlines
7.3
Good
10,462 reviews

Comfort

7.3

Food

6.7

Boarding

7.7

Crew

8.1

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
Lufthansa
6.8
Okay
8,299 reviews
United Airlines
7.3
Good
10,462 reviews

Comfort

7.3

Food

6.7

Boarding

7.7

Crew

8.1

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

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

    Departing from Copenhagen to St. Louis will take you 13h 30m. 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 $575, was found to be the cheapest airline from Copenhagen to St. Louis. An alternate airline flying to your destination would be Lufthansa. Users have found that United Airlines is 19% 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 American Airlines ($358), British Airways ($518), and WestJet ($550).

  • 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 $616). Flying from Copenhagen to St. Louis in June is currently the most expensive (average of $844). 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
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Edwardsville
Glencoe

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Copenhagen to St. Louis

Copenhagen to Kansas City flights

Top 2 airlines flying from Copenhagen to St. Louis

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$575Average$631FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$594Average$599FlexibilityNo cancel feeOn-time76%

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