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Cheap flights from Copenhagen to St. Louis from $359

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Copenhagen to St. Louis departing on 6/10. 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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0 bags

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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 pm
CPH
-
STL
14h 05m1 stop
Lufthansa Logo
6:40 pm - 5:35 pm
STL
-
CPH
15h 55m2 stops
$537Lufthansa
Fri, Jan 23 - Wed, Jan 28
Lufthansa Logo
6:50 am - 1:55 pm
CPH
-
STL
14h 05m1 stop
Lufthansa Logo
3:50 pm - 1:35 pm
STL
-
CPH
14h 45m1 stop
$554Lufthansa
Fri, Jan 23 - Wed, Jan 28
United Airlines Logo
6:50 am - 1:55 pm
CPH
-
STL
14h 05m1 stop
United Airlines Logo
6:30 am - 12:25 pm
STL
-
CPH
22h 55m2 stops
$572United Airlines
Fri, Jan 30 - Fri, Feb 6
United Airlines Logo
10:10 am - 2:30 pm
CPH
-
STL
35h 20m2 stops
United Airlines Logo
9:57 am - 2:05 pm
STL
-
CPH
21h 08m2 stops
$574United Airlines
Mon, Jan 12 - Fri, Jan 16
United Airlines Logo
7:05 am - 10:58 pm
CPH
-
STL
22h 53m2 stops
United Airlines Logo
1:15 pm - 2:00 pm
STL
-
CPH
17h 45m2 stops
$575United Airlines
Thu, Jan 22 - Mon, Jan 26
American Airlines Logo
10:30 am - 10:51 am
CPH
-
STL
31h 21m2 stops
American Airlines Logo
3:37 pm - 7:10 pm
STL
-
CPH
20h 33m2 stops
$577American Airlines
Thu, Jan 8 - Fri, Jan 16
United Airlines Logo
10:10 am - 10:58 pm
CPH
-
STL
19h 48m2 stops
United Airlines Logo
4:49 pm - 5:35 pm
STL
-
CPH
17h 46m2 stops
$578United Airlines
Mon, Jan 12 - Sat, Jan 17
United Airlines Logo
10:10 am - 10:58 pm
CPH
-
STL
19h 48m2 stops
United Airlines Logo
3:50 pm - 11:45 am
STL
-
CPH
12h 55m1 stop
$579United Airlines
Mon, Jan 12 - Sun, Jan 18
United Airlines Logo
12:40 pm - 10:00 pm
CPH
-
STL
40h 20m2 stops
United Airlines Logo
8:05 am - 2:05 pm
STL
-
CPH
23h 00m2 stops
$595United Airlines
Sat, Jan 10 - Fri, Jan 16
United Airlines Logo
12:40 pm - 10:00 pm
CPH
-
STL
40h 20m2 stops
United Airlines Logo
3:50 pm - 6:15 pm
STL
-
CPH
19h 25m1 stop
$600United Airlines
Sat, Jan 10 - Fri, Jan 16

Lufthansa flights from Copenhagen to St. Louis

Our best Lufthansa deals on Copenhagen to St. Louis flight tickets
Lufthansa
Jan 23
CPH6:50 amKastrup Copenhagen
14h 05m
1 stop
STL1:55 pmLambert-St Louis
Jan 28
STL6:40 pmLambert-St Louis
15h 55m
2 stops
CPH5:35 pmKastrup Copenhagen
$537
Find similar
Lufthansa
Jan 23
CPH6:50 amKastrup Copenhagen
14h 05m
1 stop
STL1:55 pmLambert-St Louis
Jan 28
STL3:50 pmLambert-St Louis
14h 45m
1 stop
CPH1:35 pmKastrup Copenhagen
$554
Find similar
Lufthansa
Jan 9
CPH6:50 amKastrup Copenhagen
14h 05m
1 stop
STL1:55 pmLambert-St Louis
Jan 15
STL12:44 pmLambert-St Louis
16h 41m
2 stops
CPH12:25 pmKastrup Copenhagen
$923
Find similar

United Airlines flights from Copenhagen to St. Louis

Our best United Airlines deals on Copenhagen to St. Louis flight tickets
United Airlines
Jan 30
CPH6:50 amKastrup Copenhagen
14h 05m
1 stop
STL1:55 pmLambert-St Louis
Feb 6
STL6:30 amLambert-St Louis
22h 55m
2 stops
CPH12:25 pmKastrup Copenhagen
$572
Find similar
United Airlines
Jan 12
CPH10:10 amKastrup Copenhagen
33h 19m
2 stops
STL12:29 pmLambert-St Louis
Jan 19
STL3:11 pmLambert-St Louis
15h 49m
2 stops
CPH2:00 pmKastrup Copenhagen
$574
Find similar
United Airlines
Jan 22
CPH7:05 amKastrup Copenhagen
22h 53m
2 stops
STL10:58 pmLambert-St Louis
Jan 26
STL1:15 pmLambert-St Louis
17h 45m
2 stops
CPH2:00 pmKastrup Copenhagen
$575
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 December 18, 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

Fri 1/23

6:50 am-1:55 pm

1 stop14h 05m

Lambert-St Louis

Wed 1/28

6:40 pm-5:35 pm

2 stops15h 55m

$537

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

3:50 pm-1:35 pm

1 stop14h 45m

$554

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

Mon 1/12

10:10 am-2:30 pm

2 stops35h 20m

Lambert-St Louis

Fri 1/16

9:57 am-2:05 pm

2 stops21h 08m

$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

1:15 pm-2:00 pm

2 stops17h 45m

$575

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 1/8

10:30 am-10:51 am

2 stops31h 21m

Lambert-St Louis

Fri 1/16

3:37 pm-7:10 pm

2 stops20h 33m

$577

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

Mon 1/12

10:10 am-10:58 pm

2 stops19h 48m

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

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

3:50 pm-6:15 pm

1 stop19h 25m

$600

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 typical price of a round-trip flight between Copenhagen and St. Louis?

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

In general, February 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 $493. The month of April is another great option to travel to St. Louis, with average flight prices from Copenhagen averaging around $502.

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 $594 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 $467 on momondo.

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

You could potentially save up to 47% on your flight if you consider stops on a Copenhagen to St. Louis flight.

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

Fastest flight time

14h 05m

Direct flights

None
The fastest flight from Copenhagen to St. Louis takes 14h 05m
There are no direct flights from Copenhagen to St. Louis. There are no popular flight routes from Copenhagen to St. Louis.
Search flight deals

  • 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 $528Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
Air CanadaPriceFrom $567Free CancellationRating
7.1
10,534 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
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Clayton
Festus
Glencoe
Farmington
Eureka
Edwardsville
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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