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$355+ Cheap flights from St. Louis (STL) to Copenhagen (CPH)

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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
May 20 — May 271
Tue 5/20
Tue 5/27
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Kastrup Copenhagen are usually found in February or January, booked 87 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 May 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$628
(Ovago)

One-way from

$355
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$861
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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One-way flight from Lambert-St Louis to Kastrup Copenhagen
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Highest demand for flights based on searches. 9% potential increase in price ($88 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 15, 2025.

This Ovago deal was found by Cheapflights users on 5/15. 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.
Mon 8/41:16 pmSTL - CPH
1 stop14h 59mBritish Airways
Mon 8/189:45 pmCPH - STL
2 stops30h 20mBritish Airways
Deal found 5/15$628
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Sun 9/281:30 pmSTL - CPH
1 stop10h 40mUnited Airlines
Tue 10/2112:45 pmCPH - STL
2 stops32h 34mUnited Airlines
Deal found 5/15$694
This Air Canada deal was found by Cheapflights users on 5/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/281:30 pmSTL - CPH
1 stop10h 40mAir Canada
Tue 10/2112:45 pmCPH - STL
1 stop33h 33mAir Canada
Deal found 5/15$707
This Gotogate deal was found by Cheapflights users on 5/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:15 amSTL - CPH
1 stop18h 35mMultiple Airlines
Sat 9/276:50 amCPH - STL
2 stops20h 07mMultiple Airlines
Deal found 5/15$753
This American Airlines deal was found by Cheapflights users on 5/15. 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.
Wed 9/176:25 amSTL - CPH
1 stop21h 50mAmerican Airlines
Sat 9/272:00 pmCPH - STL
1 stop13h 21mAmerican Airlines
Deal found 5/15$801
This Delta deal was found by Cheapflights users on 5/15. 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.
Wed 7/166:40 amSTL - CPH
2 stops16h 50mDelta
Wed 7/309:55 amCPH - STL
2 stops20h 25mDelta
Deal found 5/15$831
This Gurufare deal was found by Cheapflights users on 5/15. 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.
Mon 5/1911:49 amSTL - CPH
2 stops21h 36mLufthansa
Fri 5/306:05 amCPH - STL
2 stops20h 17mLufthansa
Deal found 5/15$1,107
This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/911:30 amSTL - CPH
2 stops24h 40mAustrian Airlines
Mon 6/307:00 amCPH - STL
2 stops21h 05mAustrian Airlines
Deal found 5/15$1,988

Cheapflights Fare Finder

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 May 15, 2025.
Use the filters below to find and compare flights from St. Louis to Copenhagen that are best for you.

Fly from

St. Louis

Fly to

Copenhagen

Route

Depart

Return

Price

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 8/4

1:16 pm-11:15 am

1 stop14h 59m

Kastrup Copenhagen

Mon 8/18

9:45 pm-9:05 pm

2 stops30h 20m

$628

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 9/28

1:30 pm-7:10 am

1 stop10h 40m

Kastrup Copenhagen

Tue 10/21

12:45 pm-2:19 pm

2 stops32h 34m

$694

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 9/28

1:30 pm-7:10 am

1 stop10h 40m

Kastrup Copenhagen

Tue 10/21

12:45 pm-3:18 pm

1 stop33h 33m

$707

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 9/17

9:15 am-10:50 am

1 stop18h 35m

Kastrup Copenhagen

Sat 9/27

6:50 am-7:57 pm

2 stops20h 07m

$753

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 9/17

6:25 am-11:15 am

1 stop21h 50m

Kastrup Copenhagen

Sat 9/27

2:00 pm-8:21 pm

1 stop13h 21m

$801

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 7/16

6:40 am-6:30 am

2 stops16h 50m

Kastrup Copenhagen

Wed 7/30

9:55 am-11:20 pm

2 stops20h 25m

$831

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 6/9

11:30 am-7:10 pm

2 stops24h 40m

Kastrup Copenhagen

Mon 6/30

7:00 am-9:05 pm

2 stops21h 05m

$1,988

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 7/15

1:04 pm-12:00 pm

2 stops15h 56m

Kastrup Copenhagen

Sat 7/26

6:05 am-10:45 pm

2 stops23h 40m

$3,191

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 6/24

5:47 pm-10:55 pm

2 stops46h 08m

$355

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sun 6/22

1:30 pm-7:10 am

1 stop10h 40m

$560

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/15

Showing 1-10 of 12 results
1
2

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice 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.

Cheapflights Insights

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

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 May 9, 2025.

The best time to book flights from St. Louis to Copenhagen is 87 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 $891). 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 May 15, 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 May 15, 2025.
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
790 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,731 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.0
Good
9,339 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 British Airways. Our recent data shows that you can find tickets from as low as $628 on this airline. Additional options worth looking into are United Airlines and Air Canada, starting at $694 and $707 round-trip. These flights start at 25% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Copenhagen one-way?

    $560 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Air Canada and Delta, with prices starting from $567 and $743, respectively.

  • 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 $891). 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 7 airlines flying from St. Louis to Copenhagen

Discover the top 7 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 May 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$469Average$737FlexibilityNo cancel feeOn-time70%
DeltaCheapest$590Average$811FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$591Average$898FlexibilityNo cancel feeOn-time67%
KLMCheapest$625Average$960FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$657Average$1,018FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$666Average$877FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$683Average$980FlexibilityNo cancel feeOn-time77%

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