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Cheap flights from Belgium to St. Louis from $362

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belgium to St. Louis departing on 6/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Belgium to St. Louis

Recent round-trip flight deals from Belgium to St. Louis

Enter your travel dates to find the best prices.
Lufthansa Logo
12:00 pm - 7:22 pm
BRU
-
STL
14h 22m
1 stop
Lufthansa Logo
12:15 pm - 7:15 am
STL
-
BRU
12h 00m
1 stop
$667Lufthansa
Fri, Apr 17 - Tue, Apr 21
Lufthansa Logo
8:30 am - 3:48 pm
BRU
-
STL
14h 18m
2 stops
Lufthansa Logo
11:37 am - 7:45 am
STL
-
BRU
13h 08m
1 stop
$670Lufthansa
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
7:00 am - 3:24 pm
BRU
-
STL
15h 24m
2 stops
Multiple Airlines Logo
1:10 pm - 9:00 am
STL
-
BRU
12h 50m
1 stop
$672Multiple Airlines
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
8:30 am - 3:48 pm
BRU
-
STL
14h 18m
2 stops
Multiple Airlines Logo
9:10 am - 7:10 am
STL
-
BRU
15h 00m
2 stops
$678Multiple Airlines
Fri, Apr 17 - Tue, Apr 21
Lufthansa Logo
12:00 pm - 7:22 pm
BRU
-
STL
14h 22m
1 stop
Lufthansa Logo
12:15 pm - 7:15 am
STL
-
BRU
12h 00m
1 stop
$679Lufthansa
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
10:10 am - 6:00 pm
BRU
-
STL
13h 50m
1 stop
Multiple Airlines Logo
4:05 pm - 1:15 pm
STL
-
BRU
15h 10m
2 stops
$685Multiple Airlines
Thu, Mar 12 - Mon, Mar 16
United Airlines Logo
8:30 am - 1:25 pm
BRU
-
STL
11h 55m
1 stop
United Airlines Logo
3:15 pm - 9:00 am
STL
-
BRU
10h 45m
1 stop
$688United Airlines
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
8:30 am - 1:25 pm
BRU
-
STL
11h 55m
1 stop
United Airlines Logo
12:15 pm - 7:15 am
STL
-
BRU
12h 00m
1 stop
$689United Airlines
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
7:00 am - 1:25 pm
BRU
-
STL
13h 25m
1 stop
United Airlines Logo
8:30 am - 7:10 am
STL
-
BRU
15h 40m
2 stops
$691United Airlines
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
8:30 am - 1:25 pm
BRU
-
STL
11h 55m
1 stop
United Airlines Logo
10:00 am - 7:10 am
STL
-
BRU
14h 10m
2 stops
$692United Airlines
Fri, Apr 17 - Tue, Apr 21

Lufthansa flights from Belgium to St. Louis

Our best Lufthansa deals on Belgium to St. Louis flight tickets
Lufthansa
Apr 17
BRU12:00 pmBrussels Bruxelles-National
14h 22m
1 stop
STL7:22 pmLambert-St Louis
Apr 21
STL12:15 pmLambert-St Louis
12h 00m
1 stop
BRU7:15 amBrussels Bruxelles-National
$667
Lufthansa
Apr 17
BRU8:30 amBrussels Bruxelles-National
14h 18m
2 stops
STL3:48 pmLambert-St Louis
Apr 21
STL11:37 amLambert-St Louis
13h 08m
1 stop
BRU7:45 amBrussels Bruxelles-National
$670
Lufthansa
Apr 8
BRU12:00 pmBrussels Bruxelles-National
14h 22m
1 stop
STL7:22 pmLambert-St Louis
Apr 15
STL12:15 pmLambert-St Louis
12h 00m
1 stop
BRU7:15 amBrussels Bruxelles-National
$679

United Airlines flights from Belgium to St. Louis

Our best United Airlines deals on Belgium to St. Louis flight tickets
United Airlines
Apr 17
BRU8:30 amBrussels Bruxelles-National
11h 55m
1 stop
STL1:25 pmLambert-St Louis
Apr 21
STL3:15 pmLambert-St Louis
10h 45m
1 stop
BRU9:00 amBrussels Bruxelles-National
$688
United Airlines
Apr 17
BRU8:30 amBrussels Bruxelles-National
11h 55m
1 stop
STL1:25 pmLambert-St Louis
Apr 21
STL12:15 pmLambert-St Louis
12h 00m
1 stop
BRU7:15 amBrussels Bruxelles-National
$689
United Airlines
Apr 17
BRU7:00 amBrussels Bruxelles-National
13h 25m
1 stop
STL1:25 pmLambert-St Louis
Apr 21
STL8:30 amLambert-St Louis
15h 40m
2 stops
BRU7:10 amBrussels Bruxelles-National
$691

momondo Fare Finder

 
Customize your flight search to find flights from Belgium to St. Louis 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 February 23, 2026.
Use the filters below to find and compare flights from Belgium to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

12:00 pm-7:22 pm

1 stop14h 22m

Lambert-St Louis

Tue 4/21

12:15 pm-7:15 am

1 stop12h 00m

$667

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

8:30 am-3:48 pm

2 stops14h 18m

Lambert-St Louis

Tue 4/21

11:37 am-7:45 am

1 stop13h 08m

$670

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

7:00 am-3:24 pm

2 stops15h 24m

Lambert-St Louis

Tue 4/21

1:10 pm-9:00 am

1 stop12h 50m

$672

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

8:30 am-3:48 pm

2 stops14h 18m

Lambert-St Louis

Tue 4/21

9:10 am-7:10 am

2 stops15h 00m

$678

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 4/8

12:00 pm-7:22 pm

1 stop14h 22m

Lambert-St Louis

Wed 4/15

12:15 pm-7:15 am

1 stop12h 00m

$679

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 3/12

10:10 am-6:00 pm

1 stop13h 50m

Lambert-St Louis

Mon 3/16

4:05 pm-1:15 pm

2 stops15h 10m

$685

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

8:30 am-1:25 pm

1 stop11h 55m

Lambert-St Louis

Tue 4/21

3:15 pm-9:00 am

1 stop10h 45m

$688

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

8:30 am-1:25 pm

1 stop11h 55m

Lambert-St Louis

Tue 4/21

12:15 pm-7:15 am

1 stop12h 00m

$689

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

7:00 am-1:25 pm

1 stop13h 25m

Lambert-St Louis

Tue 4/21

8:30 am-7:10 am

2 stops15h 40m

$691

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

8:30 am-1:25 pm

1 stop11h 55m

Lambert-St Louis

Tue 4/21

10:00 am-7:10 am

2 stops14h 10m

$692

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Belgium to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Belgium to St. Louis flights?

You could potentially save up to 79% on your flight if you consider stops on a Belgium to St. Louis flight.

Cheap Belgium to St. Louis flight deals and tips

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

Fastest flight time

19h 41m

Direct flights

None
The fastest flight from Belgium to St. Louis takes 19h 41m
There are no direct flights from Belgium to St. Louis. There are no popular flight routes from Belgium to St. Louis.
Search flight deals

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

    Prices for flights from Belgium to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Belgium to Lambert-St Louis Airport?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belgium to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Belgium to St. Louis

Compare and see reviews for airlines that fly from Belgium to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $652Free CancellationRating
7.4
9,342 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
St. Peters
Wentzville
Collinsville
Fenton
Alton
Farmington
Clayton
Edwardsville
Festus
Eureka
Litchfield
Glencoe
Grafton

Why use momondo?

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

It is quick and easy to find Belgium to St. Louis 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 St. Louis that suits you.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Belgium with this policy.

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

momondo helps you find the best flight between Belgium and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to St. Louis from Belgium are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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