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Cheap flights from Copenhagen to St. Louis from $428

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 12/1. 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.
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
$645Air Canada
Fri, Aug 14 - Tue, Aug 18
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, Aug 14 - Thu, Aug 20
Air Canada Logo
12:15 pm - 6:42 pm
CPH
-
STL
13h 27m
1 stop
Air Canada Logo
8:55 am - 8:55 am
STL
-
CPH
17h 00m
2 stops
$653Air Canada
Fri, Aug 14 - Tue, Aug 18
Air Canada Logo
12:15 pm - 6:42 pm
CPH
-
STL
13h 27m
1 stop
Air Canada Logo
8:55 am - 8:55 am
STL
-
CPH
17h 00m
2 stops
$654Air Canada
Fri, Aug 14 - Thu, Aug 20
Lufthansa Logo
6:40 am - 1:25 pm
CPH
-
STL
13h 45m
1 stop
Lufthansa Logo
3:30 pm - 11:35 am
STL
-
CPH
13h 05m
1 stop
$666Lufthansa
Mon, Sep 14 - Mon, Sep 21
Lufthansa Logo
6:20 am - 1:25 pm
CPH
-
STL
14h 05m
1 stop
Lufthansa Logo
6:54 pm - 6:05 pm
STL
-
CPH
16h 11m
2 stops
$673Lufthansa
Sun, Aug 30 - Sun, Sep 6
Lufthansa Logo
6:40 am - 1:25 pm
CPH
-
STL
13h 45m
1 stop
Lufthansa Logo
6:53 pm - 11:25 pm
STL
-
CPH
21h 32m
2 stops
$673Lufthansa
Mon, Sep 14 - Mon, Sep 21
United Airlines Logo
10:05 am - 9:13 pm
CPH
-
STL
18h 08m
2 stops
United Airlines Logo
3:15 pm - 12:25 pm
STL
-
CPH
14h 10m
2 stops
$674United Airlines
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
2:40 pm - 10:59 pm
CPH
-
STL
15h 19m
2 stops
United Airlines Logo
6:53 pm - 10:50 am
STL
-
CPH
32h 57m
2 stops
$679United Airlines
Fri, Sep 11 - Fri, Sep 18
United Airlines Logo
10:05 am - 9:13 pm
CPH
-
STL
18h 08m
2 stops
United Airlines Logo
3:15 pm - 12:25 pm
STL
-
CPH
14h 10m
2 stops
$687United Airlines
Thu, Dec 3 - Mon, Dec 7

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Air Canada flights from Copenhagen to St. Louis

Our best Air Canada deals on Copenhagen to St. Louis flight tickets
Air Canada
Aug 14
CPH12:15 pmKastrup Copenhagen
13h 27m
1 stop
STL6:42 pmLambert-St Louis
Aug 18
STL12:10 pmLambert-St Louis
13h 45m
1 stop
CPH8:55 amKastrup Copenhagen
$645
Air Canada
Aug 14
CPH12:15 pmKastrup Copenhagen
13h 27m
1 stop
STL6:42 pmLambert-St Louis
Aug 20
STL12:10 pmLambert-St Louis
13h 45m
1 stop
CPH8:55 amKastrup Copenhagen
$646
Air Canada
Aug 14
CPH12:15 pmKastrup Copenhagen
13h 27m
1 stop
STL6:42 pmLambert-St Louis
Aug 18
STL8:55 amLambert-St Louis
17h 00m
2 stops
CPH8:55 amKastrup Copenhagen
$653

Lufthansa flights from Copenhagen to St. Louis

Our best Lufthansa deals on Copenhagen to St. Louis flight tickets
Lufthansa
Sep 14
CPH6:40 amKastrup Copenhagen
13h 45m
1 stop
STL1:25 pmLambert-St Louis
Sep 21
STL3:30 pmLambert-St Louis
13h 05m
1 stop
CPH11:35 amKastrup Copenhagen
$666
Lufthansa
Aug 30
CPH6:20 amKastrup Copenhagen
14h 05m
1 stop
STL1:25 pmLambert-St Louis
Sep 6
STL6:54 pmLambert-St Louis
16h 11m
2 stops
CPH6:05 pmKastrup Copenhagen
$673
Lufthansa
Aug 30
CPH6:20 amKastrup Copenhagen
19h 51m
2 stops
STL7:11 pmLambert-St Louis
Sep 6
STL6:54 pmLambert-St Louis
21h 46m
2 stops
CPH11:40 pmKastrup Copenhagen
$682

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 August 2, 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

Fri 8/14

12:15 pm-6:42 pm

1 stop13h 27m

Lambert-St Louis

Tue 8/18

12:10 pm-8:55 am

1 stop13h 45m

$645

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 8/14

12:15 pm-6:42 pm

1 stop13h 27m

Lambert-St Louis

Thu 8/20

12:10 pm-8:55 am

1 stop13h 45m

$646

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 8/14

12:15 pm-6:42 pm

1 stop13h 27m

Lambert-St Louis

Tue 8/18

8:55 am-8:55 am

2 stops17h 00m

$653

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 8/14

12:15 pm-6:42 pm

1 stop13h 27m

Lambert-St Louis

Thu 8/20

8:55 am-8:55 am

2 stops17h 00m

$654
Quickest round-trip

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 9/14

6:40 am-1:25 pm

1 stop13h 45m

Lambert-St Louis

Mon 9/21

3:30 pm-11:35 am

1 stop13h 05m

$666

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Sun 8/30

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 9/6

6:54 pm-6:05 pm

2 stops16h 11m

$673

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 9/14

6:40 am-1:25 pm

1 stop13h 45m

Lambert-St Louis

Mon 9/21

6:53 pm-11:25 pm

2 stops21h 32m

$673

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 12/3

10:05 am-9:13 pm

2 stops18h 08m

Lambert-St Louis

Mon 12/7

3:15 pm-12:25 pm

2 stops14h 10m

$674

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 9/11

2:40 pm-10:59 pm

2 stops15h 19m

Lambert-St Louis

Fri 9/18

6:53 pm-10:50 am

2 stops32h 57m

$679

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Thu 12/3

10:05 am-9:13 pm

2 stops18h 08m

Lambert-St Louis

Mon 12/7

3:15 pm-12:25 pm

2 stops14h 10m

$687

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?

Prices are currently low for flights on this route.

Typical prices usually range from $666 to $858.
The lowest price recently found on this route was $645.

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 $616. 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 $692 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 $619 on momondo.

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

You could potentially save up to 14% 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

13h 45m

Direct flights

None
The fastest flight from Copenhagen to St. Louis takes 13h 45m
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 45m 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
10,062 reviews
Search United Airlines flights
LufthansaPriceFrom $594Free CancellationRating
6.8
8,174 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
St. Peters
Maryland Heights
Florissant
Collinsville
Alton
O'Fallon
Clayton
Farmington
Fenton
Wentzville
Festus
Eureka
Edwardsville
Litchfield
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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