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Cheap flights from Brussels Bruxelles-National Airport to St. Louis from $508

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 10/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Brussels Bruxelles-National Airport to St. Louis

Cheap round-trip flights

American Airlines Logo
10:45 am - 9:06 pmBRU-STL
17h 21m2 stops
American Airlines Logo
7:59 pm - 9:15 pmSTL-BRU
18h 16m2 stops
$511American Airlines
Find Deal
Fri, Sep 19 - Fri, Sep 26
American Airlines Logo
11:50 am - 9:47 pmBRU-STL
16h 57m2 stops
American Airlines Logo
1:55 pm - 1:50 pmSTL-BRU
16h 55m2 stops
$513American Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
British Airways Logo
10:45 am - 9:06 pmBRU-STL
17h 21m2 stops
British Airways Logo
3:59 pm - 7:10 pmSTL-BRU
20h 11m2 stops
$514British Airways
Find Deal
Fri, Sep 19 - Fri, Sep 26
Air Canada Logo
10:00 am - 7:57 pmBRU-STL
16h 57m1 stop
Air Canada Logo
1:30 pm - 8:05 amSTL-BRU
11h 35m1 stop
$598Air Canada
Find Deal
Fri, Sep 19 - Fri, Sep 26
Air Canada Logo
10:00 am - 8:00 pmBRU-STL
17h 00m1 stop
Air Canada Logo
9:15 am - 8:05 amSTL-BRU
15h 50m2 stops
$600Air Canada
Find Deal
Fri, Aug 29 - Tue, Sep 2
Air Canada Logo
10:00 am - 7:27 pmBRU-STL
16h 27m2 stops
Air Canada Logo
9:15 am - 8:05 amSTL-BRU
15h 50m2 stops
$602Air Canada
Find Deal
Fri, Aug 29 - Tue, Sep 2
United Airlines Logo
11:15 am - 11:44 pmBRU-STL
19h 29m1 stop
United Airlines Logo
8:10 am - 7:15 amSTL-BRU
16h 05m2 stops
$622United Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
United Airlines Logo
10:15 am - 5:52 pmBRU-STL
14h 37m1 stop
United Airlines Logo
5:22 pm - 7:00 amSTL-BRU
30h 38m1 stop
$625United Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
Lufthansa Logo
7:00 am - 1:30 pmBRU-STL
13h 30m1 stop
Lufthansa Logo
11:27 am - 7:00 amSTL-BRU
12h 33m1 stop
$629Lufthansa
Find Deal
Fri, Aug 29 - Tue, Sep 2
Lufthansa Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
Lufthansa Logo
11:50 am - 8:05 amSTL-BRU
13h 15m1 stop
$634Lufthansa
Find Deal
Wed, Dec 3 - Sun, Dec 7

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
Sep 19
BRU10:45 amBrussels Bruxelles-National
17h 21m
2 stops
STL9:06 pmLambert-St Louis
Sep 26
STL7:59 pmLambert-St Louis
18h 16m
2 stops
BRU9:15 pmBrussels Bruxelles-National
$511
Find similar
American Airlines
Dec 3
BRU11:50 amBrussels Bruxelles-National
16h 57m
2 stops
STL9:47 pmLambert-St Louis
Dec 7
STL1:55 pmLambert-St Louis
16h 55m
2 stops
BRU1:50 pmBrussels Bruxelles-National
$513
Find similar
American Airlines
Aug 29
BRU10:20 amBrussels Bruxelles-National
17h 42m
3 stops
STL9:02 pmLambert-St Louis
Sep 2
STL8:01 pmLambert-St Louis
17h 39m
2 stops
BRU8:40 pmBrussels Bruxelles-National
$5,411
Find similar

Air Canada flights from Brussels Bruxelles-National Airport to St. Louis

Our best Air Canada deals on Brussels Bruxelles-National Airport to St. Louis flight tickets
Air Canada
Sep 19
BRU10:00 amBrussels Bruxelles-National
16h 57m
1 stop
STL7:57 pmLambert-St Louis
Sep 26
STL1:30 pmLambert-St Louis
11h 35m
1 stop
BRU8:05 amBrussels Bruxelles-National
$598
Find similar
Air Canada
Aug 29
BRU10:00 amBrussels Bruxelles-National
17h 00m
1 stop
STL8:00 pmLambert-St Louis
Sep 2
STL9:15 amLambert-St Louis
15h 50m
2 stops
BRU8:05 amBrussels Bruxelles-National
$600
Find similar
Air Canada
Aug 29
BRU10:00 amBrussels Bruxelles-National
16h 27m
2 stops
STL7:27 pmLambert-St Louis
Sep 2
STL9:15 amLambert-St Louis
15h 50m
2 stops
BRU8:05 amBrussels Bruxelles-National
$602
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 August 7, 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 9/19

10:45 am-9:06 pm

2 stops17h 21m

Lambert-St Louis

Fri 9/26

7:59 pm-9:15 pm

2 stops18h 16m

$511

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 12/3

11:50 am-9:47 pm

2 stops16h 57m

Lambert-St Louis

Sun 12/7

1:55 pm-1:50 pm

2 stops16h 55m

$513

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 9/19

10:45 am-9:06 pm

2 stops17h 21m

Lambert-St Louis

Fri 9/26

3:59 pm-7:10 pm

2 stops20h 11m

$514

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 9/19

10:00 am-7:57 pm

1 stop16h 57m

Lambert-St Louis

Fri 9/26

1:30 pm-8:05 am

1 stop11h 35m

$598

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 8/29

10:00 am-8:00 pm

1 stop17h 00m

Lambert-St Louis

Tue 9/2

9:15 am-8:05 am

2 stops15h 50m

$600

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 8/29

10:00 am-7:27 pm

2 stops16h 27m

Lambert-St Louis

Tue 9/2

9:15 am-8:05 am

2 stops15h 50m

$602

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 8/29

11:15 am-11:44 pm

1 stop19h 29m

Lambert-St Louis

Tue 9/2

8:10 am-7:15 am

2 stops16h 05m

$622

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 8/29

10:15 am-5:52 pm

1 stop14h 37m

Lambert-St Louis

Tue 9/2

5:22 pm-7:00 am

1 stop30h 38m

$625

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 8/29

7:00 am-1:30 pm

1 stop13h 30m

Lambert-St Louis

Tue 9/2

11:27 am-7:00 am

1 stop12h 33m

$629

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 12/3

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Sun 12/7

11:50 am-8:05 am

1 stop13h 15m

$634

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 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 cheapest month to fly to St. Louis?

In general, May is the cheapest month to fly from Brussels Bruxelles-National Airport to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $435. The month of February is another great option to travel to St. Louis, with average flight prices from Brussels Bruxelles-National Airport averaging around $545.

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

Best Price Found

$508

Fastest flight time

12h 58m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Brussels Bruxelles-National Airport in the past 72 hours is $508. The best round-trip flight deal from Brussels Bruxelles-National Airport to St. Louis found on momondo in the last 72 hours is $511.
The fastest flight from Brussels Bruxelles-National Airport to St. Louis takes 12h 58m
There are no direct flights from Brussels Bruxelles-National Airport to St. Louis. Popular non-direct route for this connection is Brussels Bruxelles-National Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
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 13h 30m, 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
6.6
7,251 reviews
Search British Airways 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
Maryland Heights
Florissant
Fenton
O'Fallon
Collinsville
Alton
Wentzville
St. Peters
Farmington
Festus
Glencoe
Eureka
Edwardsville
Clayton
Litchfield
Shrewsbury

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Brussels to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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.

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

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.

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

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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