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Cheap flights from Copenhagen to St. Louis from $501

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Copenhagen to St. Louis departing on 11/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Copenhagen to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:50 am - 1:55 pmCPH-STL
14h 05m1 stop
Lufthansa Logo
6:43 pm - 5:35 pmSTL-CPH
15h 52m2 stops
$501Lufthansa
Find Deal
Sun, Nov 23 - Fri, Nov 28
Lufthansa Logo
6:50 am - 5:39 pmCPH-STL
17h 49m2 stops
Lufthansa Logo
6:43 pm - 5:35 pmSTL-CPH
15h 52m2 stops
$504Lufthansa
Find Deal
Sun, Nov 23 - Fri, Nov 28
United Airlines Logo
6:50 am - 6:00 pmCPH-STL
18h 10m2 stops
United Airlines Logo
10:00 am - 12:25 pmSTL-CPH
19h 25m2 stops
$541United Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
United Airlines Logo
6:50 am - 10:45 pmCPH-STL
22h 55m2 stops
United Airlines Logo
3:14 pm - 12:25 pmSTL-CPH
14h 11m2 stops
$584United Airlines
Find Deal
Sun, Nov 16 - Tue, Nov 25
British Airways Logo
6:55 am - 5:54 pmCPH-STL
17h 59m2 stops
British Airways Logo
2:17 pm - 1:15 pmSTL-CPH
15h 58m2 stops
$617British Airways
Find Deal
Sun, Nov 16 - Tue, Nov 25
British Airways Logo
6:45 am - 5:54 pmCPH-STL
18h 09m2 stops
British Airways Logo
2:52 pm - 12:15 pmSTL-CPH
14h 23m2 stops
$628British Airways
Find Deal
Thu, Nov 13 - Wed, Nov 19
Air France Logo
1:15 pm - 5:57 pmCPH-STL
35h 42m1 stop
Air France Logo
11:39 am - 9:20 amSTL-CPH
14h 41m2 stops
$839Air France
Find Deal
Sun, Nov 16 - Tue, Nov 25
Multiple Airlines Logo
6:20 am - 3:29 pmCPH-STL
40h 09m3 stops
Multiple Airlines Logo
4:05 pm - 1:35 pmSTL-CPH
14h 30m2 stops
$903Multiple Airlines
Find Deal
Thu, Nov 13 - Wed, Nov 19
Multiple Airlines Logo
6:20 am - 3:29 pmCPH-STL
40h 09m3 stops
Multiple Airlines Logo
4:05 pm - 7:05 pmSTL-CPH
20h 00m2 stops
$950Multiple Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 23
Air France Logo
1:15 pm - 5:57 pmCPH-STL
35h 42m1 stop
Air France Logo
11:39 am - 9:20 amSTL-CPH
14h 41m2 stops
$962Air France
Find Deal
Sun, Nov 16 - Tue, Nov 25

Lufthansa flights from Copenhagen to St. Louis

Our best Lufthansa deals on Copenhagen to St. Louis flight tickets
Lufthansa
Nov 23
CPH6:50 amKastrup Copenhagen
14h 05m
1 stop
STL1:55 pmLambert-St Louis
Nov 28
STL6:43 pmLambert-St Louis
15h 52m
2 stops
CPH5:35 pmKastrup Copenhagen
$501
Find similar
Lufthansa
Nov 23
CPH6:50 amKastrup Copenhagen
17h 49m
2 stops
STL5:39 pmLambert-St Louis
Nov 28
STL6:43 pmLambert-St Louis
15h 52m
2 stops
CPH5:35 pmKastrup Copenhagen
$504
Find similar
Lufthansa
Nov 23
CPH6:50 amKastrup Copenhagen
14h 05m
1 stop
STL1:55 pmLambert-St Louis
Nov 28
STL3:50 pmLambert-St Louis
14h 55m
1 stop
CPH1:45 pmKastrup Copenhagen
$505
Find similar

United Airlines flights from Copenhagen to St. Louis

Our best United Airlines deals on Copenhagen to St. Louis flight tickets
United Airlines
Dec 3
CPH6:50 amKastrup Copenhagen
18h 10m
2 stops
STL6:00 pmLambert-St Louis
Dec 7
STL10:00 amLambert-St Louis
19h 25m
2 stops
CPH12:25 pmKastrup Copenhagen
$541
Find similar
United Airlines
Nov 16
CPH6:50 amKastrup Copenhagen
22h 55m
2 stops
STL10:45 pmLambert-St Louis
Nov 25
STL3:14 pmLambert-St Louis
14h 11m
2 stops
CPH12:25 pmKastrup Copenhagen
$584
Find similar
United Airlines
Nov 12
CPH6:50 amKastrup Copenhagen
14h 05m
1 stop
STL1:55 pmLambert-St Louis
Nov 17
STL3:14 pmLambert-St Louis
15h 46m
2 stops
CPH2:00 pmKastrup Copenhagen
$626
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 2, 2025.
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

Sun 11/23

6:50 am-1:55 pm

1 stop14h 05m

Lambert-St Louis

Fri 11/28

6:43 pm-5:35 pm

2 stops15h 52m

$501

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Sun 11/23

6:50 am-5:39 pm

2 stops17h 49m

Lambert-St Louis

Fri 11/28

6:43 pm-5:35 pm

2 stops15h 52m

$504

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Wed 12/3

6:50 am-6:00 pm

2 stops18h 10m

Lambert-St Louis

Sun 12/7

10:00 am-12:25 pm

2 stops19h 25m

$541

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Sun 11/16

6:50 am-10:45 pm

2 stops22h 55m

Lambert-St Louis

Tue 11/25

3:14 pm-12:25 pm

2 stops14h 11m

$584

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Sun 11/16

6:55 am-5:54 pm

2 stops17h 59m

Lambert-St Louis

Tue 11/25

2:17 pm-1:15 pm

2 stops15h 58m

$617

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 11/13

6:45 am-5:54 pm

2 stops18h 09m

Lambert-St Louis

Wed 11/19

2:52 pm-12:15 pm

2 stops14h 23m

$628

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Sun 11/16

1:15 pm-5:57 pm

1 stop35h 42m

Lambert-St Louis

Tue 11/25

11:39 am-9:20 am

2 stops14h 41m

$839

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 11/13

6:20 am-3:29 pm

3 stops40h 09m

Lambert-St Louis

Wed 11/19

4:05 pm-1:35 pm

2 stops14h 30m

$903

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 11/13

6:20 am-3:29 pm

3 stops40h 09m

Lambert-St Louis

Sun 11/23

4:05 pm-7:05 pm

2 stops20h 00m

$950

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Sun 11/16

1:15 pm-5:57 pm

1 stop35h 42m

Lambert-St Louis

Tue 11/25

11:39 am-9:20 am

2 stops14h 41m

$962

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Copenhagen to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

In general, April is the cheapest month to fly from Copenhagen to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $481. The month of February is another great option to travel to St. Louis, with average flight prices from Copenhagen averaging around $493.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Sunday when prices can be found for as low as $431. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $740. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Copenhagen in the morning is the least expensive time of day to depart. momondo users have found prices as low as $577 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $601 per ticket.

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Copenhagen when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $565 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Copenhagen for as low as $455 on momondo.

Can stopping save me money on Copenhagen to St. Louis flights?

You could potentially save up to 55% on your flight if you consider stops on a Copenhagen to St. Louis flight.

How have Copenhagen to St. Louis flight prices changed over time?

When to book flights from Copenhagen to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Copenhagen to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Copenhagen to St. Louis (CPH to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Copenhagen to St. Louis

Direct flights

None
There are no direct flights from Copenhagen to St. Louis. There are no popular flight routes from Copenhagen to St. Louis.
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  • How far is Kastrup Copenhagen to Lambert-St Louis by plane?

    There are 4507.7 mi between Kastrup Copenhagen and Lambert-St Louis. Typically, this will take 14h 05m by plane in normal conditions.

  • When did momondo last update prices for flights from Kastrup Copenhagen Airport to Lambert-St Louis Airport?

    Prices for flights from Kastrup Copenhagen Airport to Lambert-St Louis Airport refresh daily.

  • How many operators does momondo search for flights from Kastrup Copenhagen Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Kastrup Copenhagen Airport to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kastrup Copenhagen Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Copenhagen to St. Louis?

Best airlines flying from Copenhagen to St. Louis

Compare and see reviews for airlines that fly from Copenhagen to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $485Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
Air CanadaPriceFrom $567Free CancellationRating
7.1
10,392 reviews
Search Air Canada flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Copenhagen to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Copenhagen to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Copenhagen to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from Copenhagen on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Copenhagen to St. Louis?

Once all potential Copenhagen to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Copenhagen to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Copenhagen to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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