$1,480+ Cheap flights from St. Louis (STL) to Charleroi Brussels (CRL)
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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CRL
Feb 27 — Mar 61
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Charleroi Brussels
Cheapest flights from St. Louis to Charleroi BrusselsExplore 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 January 28, 2026.
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 January 28, 2026.
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Sat 3/74:05 pm
STL
- CRL
3 stops22h 35m
Multiple Airlines
Sat 3/149:40 pm
CRL
- STL
2 stops23h 15m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$1,480
Find 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 January 28, 2026.
Most accurate provider | AranGrant 2 stars |
|---|---|
Most trusted provider | AranGrant 2 stars |
Round-trip from | $1,480 (Mytrip) |
Popular in | December |
Cheapest in | February |
Average price | $659 |
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 January 28, 2026.
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
Sat 3/7
4:05 pm-9:40 pm
3 stops22h 35m
Charleroi Brussels
Sat 3/14
9:40 pm-2:55 pm
2 stops23h 15m
$1,480
- Most accurate provider: When it comes to deals on St. Louis-Charleroi Brussels Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Charleroi Brussels Airport flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from St. Louis-Charleroi Brussels Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Charleroi Brussels Airport 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-Charleroi Brussels Airport 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 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.