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Cheap flights from St. Louis to Brussels from $774

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Brussels departing on 11/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Logo
3:50 pm - 10:25 pmSTL-CRL
23h 35m2 stops
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5:35 pm - 1:55 pmCRL-STL
27h 20m2 stops
$774
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Fri, Nov 14 - Thu, Nov 20
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9:15 am - 2:25 pmSTL-CRL
22h 10m3 stops
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7:40 pm - 7:57 pmCRL-STL
31h 17m3 stops
$903
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Sun, Sep 14 - Sun, Sep 21
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4:05 pm - 10:05 pmSTL-CRL
23h 00m3 stops
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9:10 pm - 1:55 pmCRL-STL
23h 45m2 stops
$1,058
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Sat, Nov 22 - Sat, Nov 29
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8:00 am - 12:45 pmSTL-CRL
21h 45m3 stops
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4:30 pm - 1:55 pmCRL-STL
28h 25m2 stops
$1,220
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Sun, Nov 9 - Sat, Nov 22
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4:05 pm - 8:45 pmSTL-CRL
21h 40m3 stops
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12:30 pm - 2:25 pmCRL-STL
32h 55m3 stops
$1,313
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Sat, Nov 22 - Fri, Nov 28
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3:30 pm - 8:55 pmSTL-CRL
22h 25m2 stops
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9:35 pm - 7:38 pmCRL-STL
29h 03m3 stops
$1,347
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Wed, Oct 1 - Wed, Oct 8
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10:35 am - 6:55 pmSTL-CRL
25h 20m3 stops
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2:55 pm - 1:55 pmCRL-STL
30h 00m2 stops
$1,363
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Tue, Nov 4 - Tue, Nov 11
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5:00 am - 12:00 pmSTL-CRL
24h 00m3 stops
Logo
9:35 pm - 7:38 pmCRL-STL
29h 03m3 stops
$1,364
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Wed, Oct 1 - Wed, Oct 8
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4:00 pm - 10:55 pmSTL-CRL
23h 55m2 stops
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9:00 am - 1:30 pmCRL-STL
35h 30m2 stops
$1,398
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Sun, Aug 10 - Tue, Aug 19
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4:00 pm - 10:55 pmSTL-CRL
23h 55m2 stops
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9:00 am - 1:30 pmCRL-STL
35h 30m3 stops
$1,421
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Sun, Aug 10 - Tue, Aug 19

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Charleroi Brussels Airport 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from St. Louis to Charleroi Brussels Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Fri 11/14

3:50 pm-10:25 pm

2 stops23h 35m

Charleroi Brussels

Thu 11/20

5:35 pm-1:55 pm

2 stops27h 20m

$774

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

Sat 11/22

4:05 pm-10:05 pm

3 stops23h 00m

Charleroi Brussels

Sat 11/29

9:10 pm-1:55 pm

2 stops23h 45m

$1,058

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Sun 11/9

8:00 am-12:45 pm

3 stops21h 45m

Charleroi Brussels

Sat 11/22

4:30 pm-1:55 pm

2 stops28h 25m

$1,220

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Sat 11/22

4:05 pm-8:45 pm

3 stops21h 40m

Charleroi Brussels

Fri 11/28

12:30 pm-2:25 pm

3 stops32h 55m

$1,313

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Wed 10/1

3:30 pm-8:55 pm

2 stops22h 25m

Charleroi Brussels

Wed 10/8

9:35 pm-7:38 pm

3 stops29h 03m

$1,347

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Tue 11/4

10:35 am-6:55 pm

3 stops25h 20m

Charleroi Brussels

Tue 11/11

2:55 pm-1:55 pm

2 stops30h 00m

$1,363

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Wed 10/1

5:00 am-12:00 pm

3 stops24h 00m

Charleroi Brussels

Wed 10/8

9:35 pm-7:38 pm

3 stops29h 03m

$1,364

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Sun 8/10

4:00 pm-10:55 pm

2 stops23h 55m

Charleroi Brussels

Tue 8/19

9:00 am-1:30 pm

2 stops35h 30m

$1,398

St. LouisBrussels

STL - CRL

STLCRL

Lambert-St Louis

Sun 8/10

4:00 pm-10:55 pm

2 stops23h 55m

Charleroi Brussels

Tue 8/19

9:00 am-1:30 pm

3 stops35h 30m

$1,421

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from St. Louis to Charleroi Brussels Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Charleroi Brussels Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Charleroi Brussels Airport (STL to CRL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Charleroi Brussels Airport

Best Price Found

$774

Fastest flight time

15h 55m

Direct flights

None
The best flight deal from St. Louis to Charleroi Brussels Airport found on momondo in the last 72 hours is $774
The fastest flight from St. Louis to Charleroi Brussels Airport takes 15h 55m
There are no direct flights from St. Louis to Charleroi Brussels Airport. Popular non-direct route for this connection is Lambert-St Louis Airport - Charleroi Brussels Airport.
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  • How far is Lambert-St Louis to Charleroi Brussels by plane?

    There are 4407.0 mi between Lambert-St Louis and Charleroi Brussels. A reasonable flight in good conditions will take 15h 55m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Charleroi Brussels Airport?

    Prices for flights from Lambert-St Louis Airport to Charleroi Brussels Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Lambert-St Louis Airport to Charleroi Brussels Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Charleroi Brussels Airport.

  • What documentation or ID do you need to fly to Charleroi Brussels Airport?

    The travel and health documents required for your trip to Charleroi Brussels Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Charleroi Brussels Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from St. Louis to Charleroi Brussels Airport?

    Confirm your travel details to search for the latest offers for flights from St. Louis to Charleroi Brussels Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from St. Louis to Charleroi Brussels Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Brussels?

It is quick and easy to find St. Louis to Brussels flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Brussels that suits you.

Can I find flights from St. Louis to Brussels with flexible booking policies on momondo?

All flight searches from St. Louis to Brussels on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Brussels?

Once you have performed a search for St. Louis to Brussels flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Brussels right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Brussels flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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