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Cheap flights from Brussels Bruxelles-National Airport to St. Louis from $584

This is the cheapest round-trip 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 10/31. 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.
American Airlines Logo
11:45 am - 8:53 amBRU-STL
27h 08m2 stops
American Airlines Logo
2:51 pm - 10:50 amSTL-BRU
12h 59m2 stops
$584American Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4
British Airways Logo
11:50 am - 11:56 pmBRU-STL
19h 06m2 stops
British Airways Logo
2:17 pm - 10:50 amSTL-BRU
13h 33m2 stops
$585British Airways
Find Deal
Mon, Nov 24 - Tue, Dec 2
British Airways Logo
9:20 pm - 7:29 pmBRU-STL
29h 09m2 stops
British Airways Logo
1:59 pm - 10:50 amSTL-BRU
13h 51m2 stops
$586British Airways
Find Deal
Fri, Nov 21 - Fri, Dec 5
Multiple Airlines Logo
9:30 am - 3:29 pmBRU-STL
36h 59m2 stops
Multiple Airlines Logo
4:05 pm - 1:15 pmSTL-BRU
14h 10m2 stops
$634Multiple Airlines
Find Deal
Sun, Nov 23 - Tue, Dec 2
Lufthansa Logo
10:30 am - 10:45 pmBRU-STL
18h 15m2 stops
Lufthansa Logo
12:31 pm - 8:55 amSTL-BRU
13h 24m1 stop
$635Lufthansa
Find Deal
Fri, Oct 31 - Wed, Nov 5
Lufthansa Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
Lufthansa Logo
6:42 pm - 4:15 pmSTL-BRU
14h 33m2 stops
$637Lufthansa
Find Deal
Sun, Nov 23 - Tue, Dec 2
United Airlines Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
United Airlines Logo
11:50 am - 8:05 amSTL-BRU
13h 15m1 stop
$639United Airlines
Find Deal
Fri, Nov 21 - Wed, Dec 3
United Airlines Logo
7:00 am - 7:39 pmBRU-STL
19h 39m2 stops
United Airlines Logo
11:50 am - 8:05 amSTL-BRU
13h 15m1 stop
$645United Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
Delta Logo
3:05 pm - 11:41 pmBRU-STL
15h 36m2 stops
Delta Logo
10:45 am - 2:15 pmSTL-BRU
21h 30m2 stops
$679Delta
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Fri, Oct 17 - Sun, Oct 26
Delta Logo
11:00 am - 12:40 pmBRU-STL
32h 40m1 stop
Delta Logo
9:35 am - 9:00 amSTL-BRU
16h 25m1 stop
$699Delta
Find Deal
Thu, Nov 27 - Mon, Dec 1

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

Our best American Airlines deals on Brussels Bruxelles-National Airport to St. Louis flight tickets
American Airlines
Oct 31
BRU11:45 amBrussels Bruxelles-National
27h 08m
2 stops
STL8:53 amLambert-St Louis
Nov 4
STL2:51 pmLambert-St Louis
12h 59m
2 stops
BRU10:50 amBrussels Bruxelles-National
$584
Find similar
American Airlines
Dec 3
BRU11:50 amBrussels Bruxelles-National
15h 34m
2 stops
STL8:24 pmLambert-St Louis
Dec 7
STL11:50 amLambert-St Louis
16h 00m
2 stops
BRU10:50 amBrussels Bruxelles-National
$649
Find similar

British Airways flights from Brussels Bruxelles-National Airport to St. Louis

Our best British Airways deals on Brussels Bruxelles-National Airport to St. Louis flight tickets
British Airways
Nov 24
BRU11:50 amBrussels Bruxelles-National
19h 06m
2 stops
STL11:56 pmLambert-St Louis
Dec 2
STL2:17 pmLambert-St Louis
13h 33m
2 stops
BRU10:50 amBrussels Bruxelles-National
$585
Find similar
British Airways
Nov 21
BRU9:20 pmBrussels Bruxelles-National
29h 09m
2 stops
STL7:29 pmLambert-St Louis
Dec 5
STL1:59 pmLambert-St Louis
13h 51m
2 stops
BRU10:50 amBrussels Bruxelles-National
$586
Find similar
British Airways
Nov 27
BRU10:15 amBrussels Bruxelles-National
34h 28m
2 stops
STL1:43 pmLambert-St Louis
Dec 3
STL5:40 pmLambert-St Louis
15h 40m
2 stops
BRU4:20 pmBrussels Bruxelles-National
$610
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 October 2, 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

Fri 10/31

11:45 am-8:53 am

2 stops27h 08m

Lambert-St Louis

Tue 11/4

2:51 pm-10:50 am

2 stops12h 59m

$584

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 11/24

11:50 am-11:56 pm

2 stops19h 06m

Lambert-St Louis

Tue 12/2

2:17 pm-10:50 am

2 stops13h 33m

$585

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 11/21

9:20 pm-7:29 pm

2 stops29h 09m

Lambert-St Louis

Fri 12/5

1:59 pm-10:50 am

2 stops13h 51m

$586

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 11/23

9:30 am-3:29 pm

2 stops36h 59m

Lambert-St Louis

Tue 12/2

4:05 pm-1:15 pm

2 stops14h 10m

$634

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 10/31

10:30 am-10:45 pm

2 stops18h 15m

Lambert-St Louis

Wed 11/5

12:31 pm-8:55 am

1 stop13h 24m

$635

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 11/23

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Tue 12/2

6:42 pm-4:15 pm

2 stops14h 33m

$637

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 11/21

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Wed 12/3

11:50 am-8:05 am

1 stop13h 15m

$639

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sat 11/22

7:00 am-7:39 pm

2 stops19h 39m

Lambert-St Louis

Wed 12/3

11:50 am-8:05 am

1 stop13h 15m

$645

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 10/17

3:05 pm-11:41 pm

2 stops15h 36m

Lambert-St Louis

Sun 10/26

10:45 am-2:15 pm

2 stops21h 30m

$679

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 11/27

11:00 am-12:40 pm

1 stop32h 40m

Lambert-St Louis

Mon 12/1

9:35 am-9:00 am

1 stop16h 25m

$699

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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.
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  • 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 36m, 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
British AirwaysPriceFrom $536Free CancellationRating
6.7
7,415 reviews
Search British Airways flights
United AirlinesPriceFrom $652Free CancellationRating
7.4
8,933 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
Collinsville
Fenton
Wentzville
St. Peters
Alton
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

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

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

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

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Once all potential Brussels to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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Of course. momondo tracks the price of Brussels to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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