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Cheap flights from Belgium to St. Louis from $481

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 10/6. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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.
Multiple Airlines Logo
6:20 am - 1:25 pm
BRU
-
STL
14h 05m
1 stop
Multiple Airlines Logo
1:00 pm - 7:15 am
STL
-
BRU
11h 15m
1 stop
$760Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
6:20 am - 1:25 pm
BRU
-
STL
14h 05m
1 stop
Multiple Airlines Logo
12:10 pm - 7:10 am
STL
-
BRU
12h 00m
1 stop
$761Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Lufthansa Logo
6:20 am - 3:38 pm
BRU
-
STL
16h 18m
2 stops
Lufthansa Logo
12:59 pm - 9:30 am
STL
-
BRU
13h 31m
2 stops
$762Lufthansa
Mon, Aug 24 - Sun, Aug 30
Lufthansa Logo
6:20 am - 1:25 pm
BRU
-
STL
14h 05m
1 stop
Lufthansa Logo
12:27 pm - 7:45 am
STL
-
BRU
12h 18m
1 stop
$764Lufthansa
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
6:20 am - 1:25 pm
BRU
-
STL
14h 05m
1 stop
Multiple Airlines Logo
12:59 pm - 9:30 am
STL
-
BRU
13h 31m
2 stops
$765Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
6:20 am - 1:25 pm
BRU
-
STL
14h 05m
1 stop
Multiple Airlines Logo
1:00 pm - 7:15 am
STL
-
BRU
11h 15m
1 stop
$766Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
6:20 am - 1:25 pm
BRU
-
STL
14h 05m
1 stop
Multiple Airlines Logo
12:59 pm - 9:30 am
STL
-
BRU
13h 31m
2 stops
$767Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Lufthansa Logo
8:35 am - 7:11 pm
BRU
-
STL
17h 36m
2 stops
Lufthansa Logo
12:59 pm - 9:00 am
STL
-
BRU
13h 01m
1 stop
$768Lufthansa
Fri, Aug 28 - Sun, Sep 6
Multiple Airlines Logo
6:20 am - 3:38 pm
BRU
-
STL
16h 18m
2 stops
Multiple Airlines Logo
12:59 pm - 9:30 am
STL
-
BRU
13h 31m
2 stops
$769Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
6:20 am - 1:25 pm
BRU
-
STL
14h 05m
1 stop
Multiple Airlines Logo
12:10 pm - 7:10 am
STL
-
BRU
12h 00m
1 stop
$772Multiple Airlines
Mon, Aug 24 - Sun, Aug 30

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Lufthansa flights from Belgium to St. Louis

Our best Lufthansa deals on Belgium to St. Louis flight tickets
Lufthansa
Aug 24
BRU6:20 amBrussels Bruxelles-National
16h 18m
2 stops
STL3:38 pmLambert-St Louis
Aug 30
STL12:59 pmLambert-St Louis
13h 31m
2 stops
BRU9:30 amBrussels Bruxelles-National
$762
Lufthansa
Aug 24
BRU6:20 amBrussels Bruxelles-National
14h 05m
1 stop
STL1:25 pmLambert-St Louis
Aug 30
STL12:27 pmLambert-St Louis
12h 18m
1 stop
BRU7:45 amBrussels Bruxelles-National
$764
Lufthansa
Aug 28
BRU8:35 amBrussels Bruxelles-National
17h 36m
2 stops
STL7:11 pmLambert-St Louis
Sep 6
STL12:59 pmLambert-St Louis
13h 01m
1 stop
BRU9:00 amBrussels Bruxelles-National
$768

Air Canada flights from Belgium to St. Louis

Our best Air Canada deals on Belgium to St. Louis flight tickets
Air Canada
Aug 24
BRU9:30 amBrussels Bruxelles-National
17h 54m
2 stops
STL8:24 pmLambert-St Louis
Aug 30
STL8:55 amLambert-St Louis
15h 15m
2 stops
BRU7:10 amBrussels Bruxelles-National
$786
Air Canada
Aug 24
BRU9:30 amBrussels Bruxelles-National
16h 12m
1 stop
STL6:42 pmLambert-St Louis
Aug 30
STL12:10 pmLambert-St Louis
18h 05m
2 stops
BRU1:15 pmBrussels Bruxelles-National
$787
Air Canada
Aug 24
BRU9:55 amBrussels Bruxelles-National
15h 47m
2 stops
STL6:42 pmLambert-St Louis
Aug 30
STL12:10 pmLambert-St Louis
18h 05m
2 stops
BRU1:15 pmBrussels Bruxelles-National
$790

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 July 26, 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

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

1:00 pm-7:15 am

1 stop11h 15m

$760

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

12:10 pm-7:10 am

1 stop12h 00m

$761

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-3:38 pm

2 stops16h 18m

Lambert-St Louis

Sun 8/30

12:59 pm-9:30 am

2 stops13h 31m

$762

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

12:27 pm-7:45 am

1 stop12h 18m

$764

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

12:59 pm-9:30 am

2 stops13h 31m

$765

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

1:00 pm-7:15 am

1 stop11h 15m

$766

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

12:59 pm-9:30 am

2 stops13h 31m

$767

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 8/28

8:35 am-7:11 pm

2 stops17h 36m

Lambert-St Louis

Sun 9/6

12:59 pm-9:00 am

1 stop13h 01m

$768

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-3:38 pm

2 stops16h 18m

Lambert-St Louis

Sun 8/30

12:59 pm-9:30 am

2 stops13h 31m

$769

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

12:10 pm-7:10 am

1 stop12h 00m

$772

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

What is the cheapest month to fly to St. Louis?

In general, February is the cheapest month to fly from Belgium to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of March is another great option to travel to St. Louis, with average flight prices from Belgium averaging around $662.

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

You could potentially save up to 52% 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

14h 05m

Direct flights

None
The fastest flight from Belgium to St. Louis takes 14h 05m
There are no direct flights from Belgium to St. Louis. There are no popular flight routes from Belgium to St. Louis.
Search flight deals

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 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
10,038 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
Fairview Heights
Hermann
Collinsville
St. Peters
Florissant
Maryland Heights
O'Fallon
Alton
Farmington
Clayton
Wentzville
Fenton
Festus
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

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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