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St. Louis

$423+ Cheap flights from Denmark to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — STL
feb. 25 — mar. 41
mié. 2/25
mié. 3/4
1 adult, Economy
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Cheap flight deals from Denmark to St. Louis

Cheapest flights from Denmark to St. Louis
Explore the most affordable flight options available from Denmark to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 26, 2026.

This American Airlines deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/18:40 am
CPH
-
STL
2 stops17h 49m
American Airlines
dom. 3/83:49 pm
STL
-
CPH
2 stops16h 31m
American Airlines
Deal found 1/24$514
This American Airlines deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/268:50 am
CPH
-
STL
2 stops17h 40m
American Airlines
dom. 5/39:40 pm
STL
-
CPH
1 stop16h 10m
American Airlines
Deal found 1/24$515
This American Airlines deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/108:40 am
CPH
-
STL
2 stops16h 49m
American Airlines
mar. 3/172:00 pm
STL
-
CPH
2 stops17h 15m
American Airlines
Deal found 1/23$519
This ResecentrumGruppen deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/16:50 am
CPH
-
STL
1 stop14h 05m
Lufthansa
dom. 3/84:50 pm
STL
-
CPH
1 stop12h 55m
Lufthansa
Deal found 1/24$524
This Finnair deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/267:30 pm
CPH
-
STL
2 stops31h 00m
Finnair
dom. 5/312:27 pm
STL
-
CPH
2 stops20h 48m
Finnair
Deal found 1/26$528
This American Airlines deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/910:50 am
CPH
-
STL
2 stops19h 58m
American Airlines
lun. 4/132:29 pm
STL
-
CPH
2 stops18h 11m
American Airlines
Deal found 1/24$530
This Gurufare deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/267:00 am
CPH
-
STL
1 stop19h 30m
British Airways
dom. 5/36:54 pm
STL
-
CPH
2 stops15h 26m
British Airways
Deal found 1/26$533
This Finnair deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/267:00 am
CPH
-
STL
1 stop19h 30m
Multiple Airlines
dom. 5/39:40 pm
STL
-
CPH
1 stop18h 00m
Multiple Airlines
Deal found 1/26$560
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/286:45 am
BLL
-
STL
2 stops21h 20m
United Airlines
mié. 3/411:25 am
STL
-
BLL
2 stops15h 35m
United Airlines
Deal found 1/25$571
This United Airlines deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/92:40 pm
CPH
-
STL
2 stops15h 16m
United Airlines
lun. 4/134:05 pm
STL
-
CPH
1 stop11h 45m
United Airlines
Deal found 1/23$584

Find flight deals from Denmark to St. Louis

Keep the following information in mind while searching for Denmark to St. Louis flight deals. Data was last updated enero 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$514
(American Airlines)

One-way from

$423
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$690
Provider with most accurate pricing for Kastrup Copenhagen-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kastrup Copenhagen-Lambert-St Louis flights.
Search Deals
From Denmark to Lambert-St Louis
Search Deals
One-way flight from Denmark to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denmark 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, Cheapflights users made 2,558,603 searches. Data last updated enero 26, 2026.
Use the filters below to find and compare flights from Denmark to St. Louis that are best for you.

Fly from

Denmark

Fly to

St. Louis

Route

Depart

Return

Price

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

dom. 3/1

8:40 am-7:29 pm

2 stops17h 49m

Lambert-St Louis

dom. 3/8

3:49 pm-2:20 pm

2 stops16h 31m

$514

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

dom. 4/26

8:50 am-7:30 pm

2 stops17h 40m

Lambert-St Louis

dom. 5/3

9:40 pm-5:20 pm

1 stop12h 40m

$515

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

mar. 3/10

8:40 am-7:29 pm

2 stops16h 49m

Lambert-St Louis

mar. 3/17

2:00 pm-1:15 pm

2 stops17h 15m

$519

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

dom. 3/1

6:50 am-1:55 pm

1 stop14h 05m

Lambert-St Louis

dom. 3/8

7:00 pm-6:05 pm

2 stops17h 05m

$527

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

jue. 4/9

10:50 am-10:14 pm

2 stops18h 24m

Lambert-St Louis

lun. 4/13

6:11 pm-4:55 pm

2 stops15h 44m

$527

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

dom. 4/26

7:30 pm-7:30 pm

2 stops31h 00m

Lambert-St Louis

dom. 5/3

12:27 pm-4:15 pm

2 stops20h 48m

$528

BillundSt. Louis

BLL - STL

BLLSTL

Billund

sáb. 2/28

6:45 am-7:14 pm

2 stops19h 29m

Lambert-St Louis

mié. 3/4

6:25 am-1:25 pm

2 stops24h 00m

$571

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

sáb. 3/7

4:25 pm-12:19 pm

3 stops50h 54m

$423

CopenhagenSt. Louis

CPH - STL

CPHSTL

Kastrup Copenhagen

sáb. 3/7

1:15 pm-4:53 pm

1 stop34h 38m

$1,476

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Best time to book a flight from Denmark to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Denmark with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denmark to St. Louis

What is the cheapest month to book a flight from Denmark to St. Louis?

Currently, March is the cheapest month in which you can book a flight from Denmark to St. Louis (average of $361). Flying from Denmark to St. Louis in July is currently the most expensive (average of $515). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated enero 26, 2026.
Read through reviews of airlines operating flights from Denmark to St. Louis, such as United Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,200 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,200 reviews
United Airlines
7.4
Good
9,200 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Air Canada
7.1
Good
10,656 reviews
United Airlines
7.4
Good
9,200 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Denmark to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Denmark?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Denmark.

  • How long is the flight from Denmark to St. Louis?

    A quick flight from Denmark to St. Louis can take about 17h 49m. American Airlines provides one of the quickest options available for as low as $514. Airlines will cover a distance of 4511 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Denmark to St. Louis that include hotel bookings?

    Yes. In addition to deals on Denmark to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denmark to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denmark to St. Louis.

  • Can I find deals for business class flights from Denmark to St. Louis?

    Yes. Cheapflights offers flight deals from Denmark to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denmark to St. Louis?

    Currently, March is the cheapest month in which you can book a flight from Denmark to St. Louis (average of $361). Flying from Denmark to St. Louis in July is currently the most expensive (average of $515). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Denmark to St. Louis

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Top 2 airlines flying from Denmark to St. Louis

Discover the top 2 airlines that operate flights from Denmark to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$528Average$575FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$567Average$588FlexibilityNo cancel feeOn-time67%

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