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$634+ Cheap flights from St. Louis (STL) to Copenhagen (CPH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Lambert-St Louis to Kastrup Copenhagen are usually found in January or October, booked 80 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap flight deals from St. Louis to Copenhagen

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Copenhagen (CPH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$635
(Flightnetwork)

Popular in

December

Cheapest in

January

Average price

$609
Provider with most accurate pricing for Lambert-St Louis-Kastrup Copenhagen flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Kastrup Copenhagen flights.
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From Lambert-St Louis to Kastrup Copenhagen
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Highest demand for flights based on searches. 5% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from St. Louis to Copenhagen

Cheapest flights from St. Louis to Copenhagen
Explore the most affordable flight options available from St. Louis to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 1/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/263:45 pmSTL - CPH
1 stop13h 40mLufthansa
Tue 2/1110:00 amCPH - STL
2 stops20h 30mLufthansa
Deal found 1/19$634
This Flightnetwork deal was found by Cheapflights users on 1/20. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/23:50 pmSTL - CPH
2 stops34h 25mAir Canada
Tue 2/1810:00 amCPH - STL
2 stops36h 06mAir Canada
Deal found 1/20$635
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 3/43:50 pmSTL - CPH
1 stop11h 15mUnited Airlines
Tue 3/116:55 amCPH - STL
2 stops38h 11mUnited Airlines
Deal found 1/20$641
This Flightnetwork deal was found by Cheapflights users on 1/20. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/23:45 pmSTL - CPH
1 stop14h 45mMultiple Airlines
Tue 2/182:05 pmCPH - STL
2 stops32h 01mMultiple Airlines
Deal found 1/20$659
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/3011:38 amSTL - CPH
2 stops16h 37mBritish Airways
Thu 2/1312:20 pmCPH - STL
2 stops16h 43mBritish Airways
Deal found 1/20$709
This Ovago deal was found by Cheapflights users on 1/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1512:52 pmSTL - CPH
1 stop14h 13mScandinavian Airlines
Sat 2/221:00 pmCPH - STL
1 stop17h 36mScandinavian Airlines
Deal found 1/20$928
This Finnair deal was found by Cheapflights users on 1/19. 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.
Sat 4/196:00 pmSTL - CPH
2 stops15h 15mFinnair
Sat 4/2612:25 pmCPH - STL
2 stops16h 45mFinnair
Deal found 1/19$1,013
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Fri 4/184:15 pmSTL - CPH
2 stops20h 00mAmerican Airlines
Sat 4/268:50 amCPH - STL
2 stops17h 39mAmerican Airlines
Deal found 1/19$1,032
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/169:00 amSTL - CPH
1 stop14h 55mDelta
Wed 7/29:00 amCPH - STL
1 stop15h 55mDelta
Deal found 1/20$1,124
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/245:30 pmSTL - CPH
2 stops36h 45mTurkish Airlines
Sun 1/266:10 pmCPH - STL
2 stops28h 28mTurkish Airlines
Deal found 1/20$1,580

Find flights from St. Louis to Copenhagen within your budget

Customize your flight search to find flights from St. Louis to Copenhagen 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 2/2

3:50 pm-9:15 am

2 stops34h 25m

Kastrup Copenhagen

Tue 2/18

10:00 am-3:06 pm

2 stops36h 06m

$635

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 3/4

3:50 pm-10:05 am

1 stop11h 15m

Kastrup Copenhagen

Tue 3/11

6:55 am-3:06 pm

2 stops38h 11m

$641

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 2/2

1:02 pm-12:25 pm

2 stops16h 23m

Kastrup Copenhagen

Tue 2/18

2:05 pm-1:55 pm

1 stop30h 50m

$650

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 2/2

3:45 pm-1:30 pm

1 stop14h 45m

Kastrup Copenhagen

Tue 2/18

2:05 pm-3:06 pm

2 stops32h 01m

$659

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sat 3/22

5:37 pm-2:20 pm

2 stops38h 43m

Kastrup Copenhagen

Sat 3/29

6:20 pm-4:41 pm

2 stops28h 21m

$716

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sat 2/15

12:52 pm-10:05 am

1 stop14h 13m

Kastrup Copenhagen

Sat 2/22

1:00 pm-11:36 pm

1 stop17h 36m

$928

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sat 4/19

6:00 pm-4:15 pm

2 stops15h 15m

Kastrup Copenhagen

Sat 4/26

12:25 pm-10:10 pm

2 stops16h 45m

$1,013

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Fri 4/18

4:15 pm-7:15 pm

2 stops20h 00m

Kastrup Copenhagen

Sat 4/26

8:50 am-7:29 pm

2 stops17h 39m

$1,032

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 6/16

9:00 am-6:55 am

1 stop14h 55m

Kastrup Copenhagen

Wed 7/2

9:00 am-5:55 pm

1 stop15h 55m

$1,124

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sat 3/22

5:33 pm-1:15 pm

2 stops37h 42m

Kastrup Copenhagen

Wed 3/26

6:10 pm-2:36 pm

2 stops26h 26m

$1,244

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Compare providers for flights from St. Louis to Copenhagen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Copenhagen in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Copenhagen flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Copenhagen flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Copenhagen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Copenhagen flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Copenhagen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Copenhagen from St. Louis 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.

Travel insights for flights from St. Louis to Copenhagen

Get recent, data-driven insights about flights from St. Louis to Copenhagen including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Copenhagen?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Copenhagen. Price data was last updated on January 17, 2025.

The best time to book flights from St. Louis to Copenhagen is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Copenhagen (average of $523). Flying from St. Louis to Copenhagen in June is currently the most expensive (average of $1,003). 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.

What is the cheapest time of day to fly from STL to CPH?

Find hourly flight availability from St. Louis to Copenhagen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

It’s optimal to fly from St. Louis to Copenhagen in the morning. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight at noon.

Rainfall in Copenhagen by month

Plan your trip to Copenhagen by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Copenhagen ranges from 0.8 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Copenhagen when rainfall is around 0.8 in.

Temperature in Copenhagen by month

Plan your trip to Copenhagen by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Copenhagen, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Copenhagen

Get insights into the airlines that provide service to Copenhagen. 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 Copenhagen. Reviews last updated January 21, 2025.
To help decide which airline to fly from St. Louis to Copenhagen, see what other customers have to say about Air Canada, Lufthansa and British Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Turkish Airlines
7.3
Good
3,931 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines
7.3
Good
1,320 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What are the cheapest airlines flying from St. Louis to Copenhagen round-trip?

    Our cheapest airline available from St. Louis to Copenhagen is Air Canada. Our recent data shows that you can find tickets from as low as $635 on this airline. Additional options worth looking into are United Airlines and Lufthansa, starting at $641 and $650 round-trip. These flights start at 30% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Copenhagen 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 St. Louis to Copenhagen?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Copenhagen (average of $523). Flying from St. Louis to Copenhagen in June is currently the most expensive (average of $1,003). 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
Kastrup

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Alternative routes for St. Louis to Copenhagen

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Copenhagen flights

Top 6 airlines flying from St. Louis to Copenhagen

Discover the top 6 airlines that operate flights from St. Louis to Copenhagen. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$488Average$737FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$532Average$876FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$564Average$984FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$597Average$1,032FlexibilityNo cancel feeOn-time67%
KLMCheapest$638Average$960FlexibilityNo cancel feeOn-time75%
Scandinavian AirlinesCheapest$683Average$1,299FlexibilityNo cancel feeOn-time77%
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