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Cheap flights from Brussels Bruxelles-National Airport to St. Louis from $435

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Brussels Bruxelles-National Airport to St. Louis departing on 1/9. 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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Find the cheapest flights from Brussels Bruxelles-National Airport to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
7:00 am - 5:03 pmBRU-STL
17h 03m2 stops
Lufthansa Logo
1:00 pm - 10:10 amSTL-BRU
14h 10m2 stops
$656Lufthansa
Find Deal
qui, dez 4 - seg, dez 8
United Airlines Logo
10:30 am - 7:27 pmBRU-STL
15h 57m2 stops
United Airlines Logo
11:20 am - 8:05 amSTL-BRU
13h 45m2 stops
$658United Airlines
Find Deal
qua, fev 4 - dom, fev 8
United Airlines Logo
10:30 am - 7:27 pmBRU-STL
15h 57m2 stops
United Airlines Logo
9:57 am - 8:05 amSTL-BRU
15h 08m2 stops
$659United Airlines
Find Deal
qua, fev 4 - dom, fev 8
United Airlines Logo
7:00 am - 5:03 pmBRU-STL
17h 03m2 stops
United Airlines Logo
7:00 am - 8:05 amSTL-BRU
18h 05m1 stop
$660United Airlines
Find Deal
qui, dez 4 - seg, dez 8
American Airlines Logo
2:50 pm - 4:13 pmBRU-STL
32h 23m2 stops
American Airlines Logo
6:29 pm - 7:35 pmSTL-BRU
18h 06m2 stops
$664American Airlines
Find Deal
qui, abr 23 - seg, abr 27
Lufthansa Logo
10:30 am - 9:40 pmBRU-STL
18h 10m2 stops
Lufthansa Logo
1:00 pm - 10:10 amSTL-BRU
14h 10m2 stops
$665Lufthansa
Find Deal
qui, dez 4 - seg, dez 8
Lufthansa Logo
10:10 am - 4:03 pmBRU-STL
12h 53m1 stop
Lufthansa Logo
11:22 am - 8:05 amSTL-BRU
13h 43m1 stop
$667Lufthansa
Find Deal
qua, fev 4 - dom, fev 8
United Airlines Logo
11:15 am - 5:18 pmBRU-STL
13h 03m1 stop
United Airlines Logo
8:30 am - 7:50 amSTL-BRU
16h 20m2 stops
$668United Airlines
Find Deal
qui, jan 8 - seg, jan 12
Lufthansa Logo
11:15 am - 7:48 pmBRU-STL
15h 33m1 stop
Lufthansa Logo
11:45 am - 7:45 amSTL-BRU
13h 00m1 stop
$669Lufthansa
Find Deal
qui, abr 23 - seg, abr 27
Lufthansa Logo
10:10 am - 9:40 pmBRU-STL
18h 30m1 stop
Lufthansa Logo
12:55 pm - 10:10 amSTL-BRU
14h 15m2 stops
$673Lufthansa
Find Deal
qui, dez 4 - seg, dez 8

Lufthansa flights from Brussels Bruxelles-National Airport to St. Louis

Our best Lufthansa deals on Brussels Bruxelles-National Airport to St. Louis flight tickets
Lufthansa
Dec 4
BRU7:00 amBrussels Bruxelles-National
17h 03m
2 stops
STL5:03 pmLambert-St Louis
Dec 8
STL1:00 pmLambert-St Louis
14h 10m
2 stops
BRU10:10 amBrussels Bruxelles-National
$656
Find similar
Lufthansa
Feb 4
BRU9:00 amBrussels Bruxelles-National
21h 59m
2 stops
STL11:59 pmLambert-St Louis
Feb 8
STL12:44 pmLambert-St Louis
11h 31m
1 stop
BRU7:15 amBrussels Bruxelles-National
$658
Find similar
Lufthansa
Feb 4
BRU9:00 amBrussels Bruxelles-National
20h 58m
2 stops
STL10:58 pmLambert-St Louis
Feb 8
STL12:44 pmLambert-St Louis
11h 31m
1 stop
BRU7:15 amBrussels Bruxelles-National
$659
Find similar

United Airlines flights from Brussels Bruxelles-National Airport to St. Louis

Our best United Airlines deals on Brussels Bruxelles-National Airport to St. Louis flight tickets
United Airlines
Dec 4
BRU7:00 amBrussels Bruxelles-National
17h 03m
2 stops
STL5:03 pmLambert-St Louis
Dec 8
STL7:00 amLambert-St Louis
18h 05m
1 stop
BRU8:05 amBrussels Bruxelles-National
$660
Find similar
United Airlines
Jan 8
BRU11:15 amBrussels Bruxelles-National
13h 03m
1 stop
STL5:18 pmLambert-St Louis
Jan 12
STL8:30 amLambert-St Louis
16h 20m
2 stops
BRU7:50 amBrussels Bruxelles-National
$668
Find similar
United Airlines
Dec 4
BRU10:10 amBrussels Bruxelles-National
12h 30m
1 stop
STL3:40 pmLambert-St Louis
Dec 8
STL7:00 amLambert-St Louis
18h 05m
1 stop
BRU8:05 amBrussels Bruxelles-National
$669
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Brussels Bruxelles-National Airport 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 novembro 20, 2025.
Use the filters below to find and compare flights from Brussels Bruxelles-National Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qui 12/4

7:00 am-5:03 pm

2 stops17h 03m

Lambert-St Louis

seg 12/8

1:00 pm-10:10 am

2 stops14h 10m

$656

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qua 2/4

10:30 am-7:27 pm

2 stops15h 57m

Lambert-St Louis

dom 2/8

11:20 am-8:05 am

2 stops13h 45m

$658

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qua 2/4

10:30 am-7:27 pm

2 stops15h 57m

Lambert-St Louis

dom 2/8

9:57 am-8:05 am

2 stops15h 08m

$659

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qui 12/4

7:00 am-5:03 pm

2 stops17h 03m

Lambert-St Louis

seg 12/8

7:00 am-8:05 am

1 stop18h 05m

$660

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qui 4/23

2:50 pm-4:13 pm

2 stops32h 23m

Lambert-St Louis

seg 4/27

6:29 pm-7:35 pm

2 stops18h 06m

$664

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qui 12/4

10:30 am-9:40 pm

2 stops18h 10m

Lambert-St Louis

seg 12/8

1:00 pm-10:10 am

2 stops14h 10m

$665

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qua 2/4

10:10 am-4:03 pm

1 stop12h 53m

Lambert-St Louis

dom 2/8

11:22 am-8:05 am

1 stop13h 43m

$667

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qui 1/8

11:15 am-5:18 pm

1 stop13h 03m

Lambert-St Louis

seg 1/12

8:30 am-7:50 am

2 stops16h 20m

$668

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qui 4/23

11:15 am-7:48 pm

1 stop15h 33m

Lambert-St Louis

seg 4/27

11:45 am-7:45 am

1 stop13h 00m

$669

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

qui 12/4

10:10 am-9:40 pm

1 stop18h 30m

Lambert-St Louis

seg 12/8

12:55 pm-10:10 am

2 stops14h 15m

$673

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Brussels Bruxelles-National Airport 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 typical price of a round-trip flight between Brussels Bruxelles-National Airport and St. Louis?

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $710. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $738. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

When to book flights from Brussels Bruxelles-National Airport to St. Louis

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

Cheap Brussels Bruxelles-National Airport to St. Louis (BRU to STL) flight deals and tips

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

Direct flights

None
There are no direct flights from Brussels Bruxelles-National Airport to St. Louis. There are no popular flight routes from Brussels Bruxelles-National Airport to St. Louis.
Search flight deals

  • How far is Brussels Bruxelles-National to Lambert-St Louis by plane?

    Brussels Bruxelles-National and Lambert-St Louis are 4393.0 mi apart from one another. Flights usually cover this in 12h 53m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Brussels Bruxelles-National Airport to Lambert-St Louis Airport refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Brussels Bruxelles-National Airport 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.

  • What is the most popular airline from Brussels Bruxelles-National Airport to St. Louis?

Best airlines flying from Brussels Bruxelles-National Airport to St. Louis

Compare and see reviews for airlines that fly from Brussels Bruxelles-National Airport to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $652Free CancellationRating
7.4
9,029 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
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
Litchfield
Shrewsbury

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

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