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Cheap flights from Belgium to St. Louis from $455

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 6/11. 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

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
7:00 am - 1:25 pm
BRU
-
STL
13h 25m
1 stop
Lufthansa Logo
12:15 pm - 7:15 am
STL
-
BRU
12h 00m
1 stop
$741Lufthansa
Fri, May 1 - Tue, May 5
Lufthansa Logo
7:00 am - 1:25 pm
BRU
-
STL
13h 25m
1 stop
Lufthansa Logo
7:09 pm - 5:30 pm
STL
-
BRU
15h 21m
2 stops
$764Lufthansa
Fri, May 1 - Tue, May 5
Lufthansa Logo
7:00 am - 1:25 pm
BRU
-
STL
13h 25m
1 stop
Lufthansa Logo
12:15 pm - 7:15 am
STL
-
BRU
12h 00m
1 stop
$775Lufthansa
Fri, May 1 - Tue, May 5
Lufthansa Logo
2:25 pm - 10:50 pm
BRU
-
STL
15h 25m
2 stops
Lufthansa Logo
7:09 pm - 5:30 pm
STL
-
BRU
15h 21m
2 stops
$786Lufthansa
Fri, May 1 - Tue, May 5
Multiple Airlines Logo
7:00 am - 1:25 pm
BRU
-
STL
13h 25m
1 stop
Multiple Airlines Logo
1:05 pm - 1:15 pm
STL
-
BRU
17h 10m
2 stops
$789Multiple Airlines
Fri, May 1 - Tue, May 5
Lufthansa Logo
7:00 am - 1:25 pm
BRU
-
STL
13h 25m
1 stop
Lufthansa Logo
12:15 pm - 7:15 am
STL
-
BRU
12h 00m
1 stop
$790Lufthansa
Fri, May 1 - Tue, May 5
Air Canada Logo
8:30 am - 8:25 pm
BRU
-
STL
18h 55m
2 stops
Air Canada Logo
1:05 pm - 7:10 am
STL
-
BRU
11h 05m
1 stop
$792Air Canada
Mon, Jun 8 - Sun, Jun 14
Lufthansa Logo
10:15 am - 3:46 pm
BRU
-
STL
12h 31m
1 stop
Lufthansa Logo
8:35 am - 7:15 am
STL
-
BRU
15h 40m
1 stop
$793Lufthansa
Sun, May 31 - Sun, Jun 7
Air Canada Logo
9:40 am - 8:09 pm
BRU
-
STL
17h 29m
2 stops
Air Canada Logo
1:05 pm - 1:15 pm
STL
-
BRU
17h 10m
2 stops
$796Air Canada
Fri, May 1 - Tue, May 5
Air Canada Logo
9:40 am - 8:25 pm
BRU
-
STL
17h 45m
2 stops
Air Canada Logo
1:05 pm - 8:00 pm
STL
-
BRU
23h 55m
2 stops
$797Air Canada
Fri, May 1 - Tue, May 5

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Air Canada flights from Belgium to St. Louis

Our best Air Canada deals on Belgium to St. Louis flight tickets
Air Canada
Jun 8
BRU8:30 amBrussels Bruxelles-National
18h 55m
2 stops
STL8:25 pmLambert-St Louis
Jun 14
STL1:05 pmLambert-St Louis
11h 05m
1 stop
BRU7:10 amBrussels Bruxelles-National
$792
Air Canada
May 1
BRU9:40 amBrussels Bruxelles-National
17h 29m
2 stops
STL8:09 pmLambert-St Louis
May 5
STL1:05 pmLambert-St Louis
17h 10m
2 stops
BRU1:15 pmBrussels Bruxelles-National
$796
Air Canada
May 1
BRU9:40 amBrussels Bruxelles-National
17h 45m
2 stops
STL8:25 pmLambert-St Louis
May 5
STL1:05 pmLambert-St Louis
23h 55m
2 stops
BRU8:00 pmBrussels Bruxelles-National
$797

Lufthansa flights from Belgium to St. Louis

Our best Lufthansa deals on Belgium to St. Louis flight tickets
Lufthansa
May 1
BRU7:00 amBrussels Bruxelles-National
13h 25m
1 stop
STL1:25 pmLambert-St Louis
May 5
STL12:15 pmLambert-St Louis
12h 00m
1 stop
BRU7:15 amBrussels Bruxelles-National
$741
Lufthansa
May 1
BRU7:00 amBrussels Bruxelles-National
13h 25m
1 stop
STL1:25 pmLambert-St Louis
May 5
STL7:09 pmLambert-St Louis
15h 21m
2 stops
BRU5:30 pmBrussels Bruxelles-National
$764
Lufthansa
May 1
BRU7:00 amBrussels Bruxelles-National
13h 25m
1 stop
STL1:25 pmLambert-St Louis
May 5
STL12:15 pmLambert-St Louis
12h 00m
1 stop
BRU7:15 amBrussels Bruxelles-National
$775

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 April 18, 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

Cheapest round-trip
Quickest round-trip

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 5/1

7:00 am-1:25 pm

1 stop13h 25m

Lambert-St Louis

Tue 5/5

12:15 pm-7:15 am

1 stop12h 00m

$741

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 5/1

7:00 am-1:25 pm

1 stop13h 25m

Lambert-St Louis

Tue 5/5

7:09 pm-5:30 pm

2 stops15h 21m

$764

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 5/1

7:00 am-1:25 pm

1 stop13h 25m

Lambert-St Louis

Tue 5/5

12:15 pm-7:15 am

1 stop12h 00m

$775

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 5/1

2:25 pm-10:50 pm

2 stops15h 25m

Lambert-St Louis

Tue 5/5

7:09 pm-5:30 pm

2 stops15h 21m

$786

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 5/1

7:00 am-1:25 pm

1 stop13h 25m

Lambert-St Louis

Tue 5/5

1:05 pm-1:15 pm

2 stops17h 10m

$789

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 5/1

7:00 am-1:25 pm

1 stop13h 25m

Lambert-St Louis

Tue 5/5

12:15 pm-7:15 am

1 stop12h 00m

$790

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/8

8:30 am-8:25 pm

2 stops18h 55m

Lambert-St Louis

Sun 6/14

1:05 pm-7:10 am

1 stop11h 05m

$792

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 5/31

10:15 am-3:46 pm

1 stop12h 31m

Lambert-St Louis

Sun 6/7

8:35 am-7:15 am

1 stop15h 40m

$793

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 5/1

9:40 am-8:09 pm

2 stops17h 29m

Lambert-St Louis

Tue 5/5

1:05 pm-1:15 pm

2 stops17h 10m

$796

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 5/1

9:40 am-8:25 pm

2 stops17h 45m

Lambert-St Louis

Tue 5/5

1:05 pm-8:00 pm

2 stops23h 55m

$797

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 48% 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

12h 31m

Direct flights

None
The fastest flight from Belgium to St. Louis takes 12h 31m
There are no direct flights from Belgium to St. Louis. There are no popular flight routes from Belgium to St. Louis.
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Frequently asked questions about flying from Belgium to St. Louis

  • 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 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.

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
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
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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