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Charleroi Brussels

$450+ Cheap flights from St. Louis (STL) to Charleroi Brussels (CRL)

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CRL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from St. Louis to Charleroi Brussels

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Charleroi Brussels (CRL). 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 July 29, 2025.

Round-trip from

$903
(Mytrip)

One-way from

$450
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$1,127
From Lambert-St Louis to Charleroi Brussels
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One-way flight from Lambert-St Louis to Charleroi Brussels
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Highest demand for flights based on searches. 19% potential increase in price ($220 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from St. Louis to Charleroi Brussels

Cheapest flights from St. Louis to Charleroi Brussels
Explore the most affordable flight options available from St. Louis to Charleroi Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/149:15 amSTL - CRL
3 stops22h 10mMultiple Airlines
Sun 9/217:40 pmCRL - STL
3 stops31h 17mMultiple Airlines
Deal found 7/29$903

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Charleroi Brussels 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 July 29, 2025.
Use the filters below to find and compare flights from St. Louis to Charleroi Brussels Airport that are best for you.

Fly from

St. Louis

Fly to

Charleroi Brussels

Route

Depart

Return

Price

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Sun 9/14

9:15 am-2:25 pm

3 stops22h 10m

Charleroi Brussels

Sun 9/21

7:40 pm-7:57 pm

3 stops31h 17m

$903

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Sun 8/10

1:30 pm-4:30 pm

2 stops20h 00m

$450

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from St. Louis to Charleroi Brussels

Have a flexible travel schedule? Discover the best time to fly to Charleroi Brussels 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.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Charleroi Brussels. 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 from for flights from St. Louis to Charleroi Brussels?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Charleroi Brussels. On average, Lambert-St Louis has 0 outbound flights to Charleroi Brussels per day from 0 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

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

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

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

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

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

See more FAQs

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