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Cheap flights from Copenhagen to St. Louis from $489

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 8/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Copenhagen to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
3:20 pm - 11:34 pm
CPH
-
STL
15h 14m
1 stop
British Airways Logo
4:54 pm - 11:15 pm
STL
-
CPH
23h 21m
2 stops
$576British Airways
Thu, Aug 13 - Mon, Aug 17
British Airways Logo
3:20 pm - 11:34 pm
CPH
-
STL
15h 14m
1 stop
British Airways Logo
5:42 pm - 11:35 am
STL
-
CPH
10h 53m
1 stop
$595British Airways
Thu, Aug 13 - Mon, Aug 17
Delta Logo
9:00 am - 11:58 pm
CPH
-
STL
21h 58m
2 stops
Delta Logo
2:10 pm - 1:20 pm
STL
-
CPH
16h 10m
2 stops
$604Delta
Thu, Aug 13 - Mon, Aug 17
Multiple Airlines Logo
3:20 pm - 11:34 pm
CPH
-
STL
15h 14m
1 stop
Multiple Airlines Logo
2:55 pm - 3:40 pm
STL
-
CPH
17h 45m
2 stops
$606Multiple Airlines
Thu, Aug 13 - Mon, Aug 17
American Airlines Logo
10:30 am - 8:21 pm
CPH
-
STL
16h 51m
2 stops
American Airlines Logo
3:22 pm - 7:30 pm
STL
-
CPH
21h 08m
2 stops
$614American Airlines
Thu, Dec 3 - Sun, Dec 6
American Airlines Logo
12:15 pm - 11:59 pm
CPH
-
STL
18h 44m
2 stops
American Airlines Logo
2:54 pm - 5:25 pm
STL
-
CPH
19h 31m
2 stops
$615American Airlines
Thu, Dec 3 - Mon, Dec 7
British Airways Logo
6:45 am - 6:03 pm
CPH
-
STL
18h 18m
2 stops
British Airways Logo
3:22 pm - 2:50 pm
STL
-
CPH
16h 28m
2 stops
$618British Airways
Thu, Dec 3 - Mon, Dec 7
British Airways Logo
6:45 am - 6:03 pm
CPH
-
STL
18h 18m
2 stops
British Airways Logo
3:22 pm - 2:50 pm
STL
-
CPH
16h 28m
2 stops
$620British Airways
Thu, Dec 3 - Mon, Dec 7
Air Canada Logo
12:15 pm - 6:42 pm
CPH
-
STL
13h 27m
1 stop
Air Canada Logo
12:10 pm - 8:55 am
STL
-
CPH
13h 45m
1 stop
$638Air Canada
Fri, Jul 31 - Fri, Aug 7
Air Canada Logo
12:15 pm - 6:42 pm
CPH
-
STL
13h 27m
1 stop
Air Canada Logo
12:10 pm - 8:55 am
STL
-
CPH
13h 45m
1 stop
$646Air Canada
Fri, Jul 10 - Tue, Jul 14

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United Airlines flights from Copenhagen to St. Louis

Our best United Airlines deals on Copenhagen to St. Louis flight tickets
United Airlines
Jul 8
CPH6:20 amKastrup Copenhagen
24h 09m
2 stops
STL11:29 pmLambert-St Louis
Jul 14
STL12:10 pmLambert-St Louis
13h 45m
1 stop
CPH8:55 amKastrup Copenhagen
$677
United Airlines
Jul 10
CPH6:30 amKastrup Copenhagen
18h 43m
2 stops
STL6:13 pmLambert-St Louis
Jul 14
STL6:01 amLambert-St Louis
19h 54m
2 stops
CPH8:55 amKastrup Copenhagen
$678
United Airlines
Dec 3
CPH10:05 amKastrup Copenhagen
16h 20m
2 stops
STL7:25 pmLambert-St Louis
Dec 6
STL3:40 pmLambert-St Louis
14h 50m
1 stop
CPH1:30 pmKastrup Copenhagen
$679

American Airlines flights from Copenhagen to St. Louis

Our best American Airlines deals on Copenhagen to St. Louis flight tickets
American Airlines
Dec 3
CPH12:15 pmKastrup Copenhagen
17h 10m
2 stops
STL10:25 pmLambert-St Louis
Dec 7
STL4:49 pmLambert-St Louis
17h 36m
2 stops
CPH5:25 pmKastrup Copenhagen
$609
American Airlines
Dec 3
CPH10:30 amKastrup Copenhagen
16h 51m
2 stops
STL8:21 pmLambert-St Louis
Dec 6
STL3:22 pmLambert-St Louis
21h 08m
2 stops
CPH7:30 pmKastrup Copenhagen
$614
American Airlines
Dec 3
CPH12:15 pmKastrup Copenhagen
18h 44m
2 stops
STL11:59 pmLambert-St Louis
Dec 7
STL2:54 pmLambert-St Louis
19h 31m
2 stops
CPH5:25 pmKastrup Copenhagen
$615

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 June 19, 2026.
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 - STL

CPHSTL

Kastrup Copenhagen

Thu 8/13

3:20 pm-11:34 pm

1 stop15h 14m

Lambert-St Louis

Mon 8/17

4:54 pm-11:15 pm

2 stops23h 21m

$576
Quickest round-trip

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 8/13

3:20 pm-11:34 pm

1 stop15h 14m

Lambert-St Louis

Mon 8/17

5:42 pm-11:35 am

1 stop10h 53m

$595

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 8/13

9:00 am-11:58 pm

2 stops21h 58m

Lambert-St Louis

Mon 8/17

2:10 pm-1:20 pm

2 stops16h 10m

$604

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 8/13

3:20 pm-11:34 pm

1 stop15h 14m

Lambert-St Louis

Mon 8/17

2:55 pm-3:40 pm

2 stops17h 45m

$606

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 12/3

10:30 am-8:21 pm

2 stops16h 51m

Lambert-St Louis

Sun 12/6

3:22 pm-7:30 pm

2 stops21h 08m

$614

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 12/3

12:15 pm-11:59 pm

2 stops18h 44m

Lambert-St Louis

Mon 12/7

2:54 pm-5:25 pm

2 stops19h 31m

$615

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 12/3

6:45 am-6:03 pm

2 stops18h 18m

Lambert-St Louis

Mon 12/7

3:22 pm-2:50 pm

2 stops16h 28m

$618

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 12/3

6:45 am-6:03 pm

2 stops18h 18m

Lambert-St Louis

Mon 12/7

3:22 pm-2:50 pm

2 stops16h 28m

$620

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 7/31

12:15 pm-6:42 pm

1 stop13h 27m

Lambert-St Louis

Fri 8/7

12:10 pm-8:55 am

1 stop13h 45m

$638

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 7/10

12:15 pm-6:42 pm

1 stop13h 27m

Lambert-St Louis

Tue 7/14

12:10 pm-8:55 am

1 stop13h 45m

$646

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 $587. The month of December is another great option to travel to St. Louis, with average flight prices from Copenhagen averaging around $623.

How far in advance should I book a flight from Copenhagen 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 $686 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 $464 on momondo.

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

You could potentially save up to 11% 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

Fastest flight time

13h 27m

Direct flights

None
The fastest flight from Copenhagen to St. Louis takes 13h 27m
There are no direct flights from Copenhagen to St. Louis. There are no popular flight routes from Copenhagen to St. Louis.
Search flight deals

Frequently asked questions about flying from Copenhagen to St. Louis

  • 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 13h 27m 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 $542Free CancellationRating
7.4
9,862 reviews
Search United Airlines flights
LufthansaPriceFrom $594Free CancellationRating
6.8
8,078 reviews
Search Lufthansa 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
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Wentzville
Clayton
Fenton
Farmington
Festus
Eureka
Litchfield
Edwardsville
Grafton
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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