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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 8/21. 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.
Air Canada Logo
6:40 am - 8:09 pm
CPH
-
STL
20h 29m
2 stops
Air Canada Logo
1:05 pm - 8:55 am
STL
-
CPH
12h 50m
1 stop
$652Air Canada
Mon, Jun 1 - Sun, Jun 7
Air Canada Logo
10:30 am - 12:06 pm
CPH
-
STL
32h 36m
2 stops
Air Canada Logo
1:05 pm - 8:55 am
STL
-
CPH
12h 50m
1 stop
$656Air Canada
Mon, Jun 1 - Sun, Jun 7
Virgin Atlantic Logo
1:55 pm - 11:21 pm
CPH
-
STL
16h 26m
1 stop
Virgin Atlantic Logo
5:36 pm - 11:45 am
STL
-
CPH
11h 09m
1 stop
$660Virgin Atlantic
Mon, Jun 1 - Sun, Jun 7
Multiple Airlines Logo
1:55 pm - 11:21 pm
CPH
-
STL
16h 26m
1 stop
Multiple Airlines Logo
5:36 pm - 11:45 am
STL
-
CPH
11h 09m
1 stop
$661Multiple Airlines
Mon, Jun 1 - Sun, Jun 7
Virgin Atlantic Logo
9:00 am - 9:09 pm
CPH
-
STL
19h 09m
2 stops
Virgin Atlantic Logo
5:36 pm - 11:45 am
STL
-
CPH
11h 09m
1 stop
$662Virgin Atlantic
Mon, Jun 1 - Sun, Jun 7
Multiple Airlines Logo
6:40 am - 1:25 pm
CPH
-
STL
13h 45m
1 stop
Multiple Airlines Logo
1:05 pm - 8:55 am
STL
-
CPH
12h 50m
1 stop
$664Multiple Airlines
Mon, Jun 1 - Sun, Jun 7
Air Canada Logo
6:40 am - 8:09 pm
CPH
-
STL
20h 29m
2 stops
Air Canada Logo
2:15 pm - 11:05 am
STL
-
CPH
13h 50m
2 stops
$672Air Canada
Mon, Jun 1 - Sun, Jun 7
Multiple Airlines Logo
6:40 am - 1:25 pm
CPH
-
STL
13h 45m
1 stop
Multiple Airlines Logo
1:05 pm - 8:55 am
STL
-
CPH
12h 50m
1 stop
$677Multiple Airlines
Mon, Jun 1 - Sun, Jun 7
Multiple Airlines Logo
6:40 am - 1:25 pm
CPH
-
STL
13h 45m
1 stop
Multiple Airlines Logo
2:15 pm - 11:35 am
STL
-
CPH
14h 20m
2 stops
$680Multiple Airlines
Mon, Jun 1 - Sun, Jun 7
United Airlines Logo
6:30 am - 1:25 pm
CPH
-
STL
13h 55m
1 stop
United Airlines Logo
8:43 am - 6:25 pm
STL
-
CPH
26h 42m
2 stops
$682United Airlines
Fri, May 22 - Thu, May 28

Lufthansa flights from Copenhagen to St. Louis

Our best Lufthansa deals on Copenhagen to St. Louis flight tickets
Lufthansa
Jun 14
CPH6:20 amKastrup Copenhagen
22h 01m
2 stops
STL9:21 pmLambert-St Louis
Jun 29
STL8:43 amLambert-St Louis
31h 42m
2 stops
CPH11:25 pmKastrup Copenhagen
$681
Lufthansa
May 7
CPH10:10 amKastrup Copenhagen
19h 35m
2 stops
STL10:45 pmLambert-St Louis
May 16
STL12:15 pmLambert-St Louis
16h 40m
2 stops
CPH11:55 amKastrup Copenhagen
$1,195
Lufthansa
May 7
CPH2:40 pmKastrup Copenhagen
15h 05m
2 stops
STL10:45 pmLambert-St Louis
May 16
STL12:15 pmLambert-St Louis
16h 40m
2 stops
CPH11:55 amKastrup Copenhagen
$1,291

Air Canada flights from Copenhagen to St. Louis

Our best Air Canada deals on Copenhagen to St. Louis flight tickets
Air Canada
Jun 1
CPH6:40 amKastrup Copenhagen
20h 29m
2 stops
STL8:09 pmLambert-St Louis
Jun 7
STL1:05 pmLambert-St Louis
12h 50m
1 stop
CPH8:55 amKastrup Copenhagen
$652
Air Canada
Jun 1
CPH10:30 amKastrup Copenhagen
32h 36m
2 stops
STL12:06 pmLambert-St Louis
Jun 7
STL1:05 pmLambert-St Louis
12h 50m
1 stop
CPH8:55 amKastrup Copenhagen
$656
Air Canada
Jun 1
CPH6:40 amKastrup Copenhagen
20h 29m
2 stops
STL8:09 pmLambert-St Louis
Jun 7
STL2:15 pmLambert-St Louis
13h 50m
2 stops
CPH11:05 amKastrup Copenhagen
$672

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 May 4, 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

Mon 6/1

6:40 am-8:09 pm

2 stops20h 29m

Lambert-St Louis

Sun 6/7

1:05 pm-8:55 am

1 stop12h 50m

$652

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

10:30 am-12:06 pm

2 stops32h 36m

Lambert-St Louis

Sun 6/7

1:05 pm-8:55 am

1 stop12h 50m

$656

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

1:55 pm-11:21 pm

1 stop16h 26m

Lambert-St Louis

Sun 6/7

5:36 pm-11:45 am

1 stop11h 09m

$660

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

1:55 pm-11:21 pm

1 stop16h 26m

Lambert-St Louis

Sun 6/7

5:36 pm-11:45 am

1 stop11h 09m

$661

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

9:00 am-9:09 pm

2 stops19h 09m

Lambert-St Louis

Sun 6/7

5:36 pm-11:45 am

1 stop11h 09m

$662
Quickest round-trip

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

6:40 am-1:25 pm

1 stop13h 45m

Lambert-St Louis

Sun 6/7

1:05 pm-8:55 am

1 stop12h 50m

$664

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

6:40 am-8:09 pm

2 stops20h 29m

Lambert-St Louis

Sun 6/7

2:15 pm-11:05 am

2 stops13h 50m

$672

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

6:40 am-1:25 pm

1 stop13h 45m

Lambert-St Louis

Sun 6/7

1:05 pm-8:55 am

1 stop12h 50m

$677

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Mon 6/1

6:40 am-1:25 pm

1 stop13h 45m

Lambert-St Louis

Sun 6/7

2:15 pm-11:35 am

2 stops14h 20m

$680

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

Fri 5/22

6:30 am-1:25 pm

1 stop13h 55m

Lambert-St Louis

Thu 5/28

8:43 am-6:25 pm

2 stops26h 42m

$682

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, 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 $532. The month of November is another great option to travel to St. Louis, with average flight prices from Copenhagen averaging around $540.

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 $632 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.

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 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 $528Free CancellationRating
7.4
9,680 reviews
Search United Airlines flights
LufthansaPriceFrom $594Free CancellationRating
6.8
7,972 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
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

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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