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Cheap flights from Brussels Bruxelles-National Airport to St. Louis from $605

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 8/3. 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

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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.
British Airways Logo
8:50 pm - 11:59 pm
BRU
-
STL
34h 09m
2 stops
British Airways Logo
9:35 pm - 9:55 am
STL
-
BRU
29h 20m
1 stop
$744British Airways
Mon, Jun 15 - Wed, Jun 24
Air Canada Logo
6:20 am - 8:25 pm
BRU
-
STL
21h 05m
2 stops
Air Canada Logo
1:20 pm - 8:55 am
STL
-
BRU
36h 35m
2 stops
$765Air Canada
Mon, Jun 22 - Sun, Jun 28
Air Canada Logo
6:20 am - 8:25 pm
BRU
-
STL
21h 05m
2 stops
Air Canada Logo
1:20 pm - 7:10 am
STL
-
BRU
10h 50m
1 stop
$766Air Canada
Mon, Jun 22 - Sun, Jun 28
Air Canada Logo
6:20 am - 8:25 pm
BRU
-
STL
21h 05m
2 stops
Air Canada Logo
8:40 am - 7:10 am
STL
-
BRU
15h 30m
2 stops
$767Air Canada
Mon, Jun 22 - Sun, Jun 28
Air Canada Logo
6:20 am - 8:25 pm
BRU
-
STL
21h 05m
2 stops
Air Canada Logo
1:20 pm - 7:10 am
STL
-
BRU
10h 50m
1 stop
$769Air Canada
Mon, Jun 22 - Sun, Jun 28
Air Canada Logo
9:40 am - 8:25 pm
BRU
-
STL
17h 45m
1 stop
Air Canada Logo
2:15 pm - 7:50 am
STL
-
BRU
10h 35m
1 stop
$770Air Canada
Mon, Jun 22 - Sun, Jun 28
Air Canada Logo
9:40 am - 8:25 pm
BRU
-
STL
17h 45m
1 stop
Air Canada Logo
2:15 pm - 7:50 am
STL
-
BRU
10h 35m
1 stop
$773Air Canada
Mon, Jun 22 - Sun, Jun 28
Air Canada Logo
9:40 am - 8:25 pm
BRU
-
STL
17h 45m
1 stop
Air Canada Logo
2:15 pm - 7:50 am
STL
-
BRU
10h 35m
1 stop
$777Air Canada
Mon, Jun 22 - Sun, Jun 28
Lufthansa Logo
6:20 am - 3:46 pm
BRU
-
STL
16h 26m
2 stops
Lufthansa Logo
1:13 pm - 9:00 am
STL
-
BRU
12h 47m
1 stop
$785Lufthansa
Mon, Jun 22 - Sun, Jun 28
United Airlines Logo
6:20 am - 1:25 pm
BRU
-
STL
14h 05m
1 stop
United Airlines Logo
1:13 pm - 9:00 am
STL
-
BRU
12h 47m
1 stop
$788United Airlines
Mon, Jun 22 - Sun, Jun 28

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
Jun 22
BRU6:20 amBrussels Bruxelles-National
21h 05m
2 stops
STL8:25 pmLambert-St Louis
Jun 28
STL1:20 pmLambert-St Louis
36h 35m
2 stops
BRU8:55 amBrussels Bruxelles-National
$765
Air Canada
Jun 22
BRU6:20 amBrussels Bruxelles-National
21h 05m
2 stops
STL8:25 pmLambert-St Louis
Jun 28
STL1:20 pmLambert-St Louis
10h 50m
1 stop
BRU7:10 amBrussels Bruxelles-National
$766
Air Canada
Jun 22
BRU6:20 amBrussels Bruxelles-National
21h 05m
2 stops
STL8:25 pmLambert-St Louis
Jun 28
STL8:40 amLambert-St Louis
15h 30m
2 stops
BRU7:10 amBrussels Bruxelles-National
$767

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
Jun 22
BRU6:20 amBrussels Bruxelles-National
14h 05m
1 stop
STL1:25 pmLambert-St Louis
Jun 28
STL1:13 pmLambert-St Louis
12h 47m
1 stop
BRU9:00 amBrussels Bruxelles-National
$788
United Airlines
Jun 10
BRU6:20 amBrussels Bruxelles-National
14h 05m
1 stop
STL1:25 pmLambert-St Louis
Jun 23
STL12:55 pmLambert-St Louis
11h 20m
1 stop
BRU7:15 amBrussels Bruxelles-National
$881
United Airlines
Jun 10
BRU6:20 amBrussels Bruxelles-National
14h 05m
1 stop
STL1:25 pmLambert-St Louis
Jun 23
STL7:22 amLambert-St Louis
16h 48m
2 stops
BRU7:10 amBrussels Bruxelles-National
$884

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 June 4, 2026.
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

Cheapest round-trip

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/15

8:50 pm-11:59 pm

2 stops34h 09m

Lambert-St Louis

Wed 6/24

9:35 pm-9:55 am

1 stop29h 20m

$744

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/22

6:20 am-8:25 pm

2 stops21h 05m

Lambert-St Louis

Sun 6/28

1:20 pm-8:55 am

2 stops36h 35m

$765

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/22

6:20 am-8:25 pm

2 stops21h 05m

Lambert-St Louis

Sun 6/28

1:20 pm-7:10 am

1 stop10h 50m

$766

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/22

6:20 am-8:25 pm

2 stops21h 05m

Lambert-St Louis

Sun 6/28

8:40 am-7:10 am

2 stops15h 30m

$767

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/22

6:20 am-8:25 pm

2 stops21h 05m

Lambert-St Louis

Sun 6/28

1:20 pm-7:10 am

1 stop10h 50m

$769

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/22

9:40 am-8:25 pm

1 stop17h 45m

Lambert-St Louis

Sun 6/28

2:15 pm-7:50 am

1 stop10h 35m

$770

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/22

9:40 am-8:25 pm

1 stop17h 45m

Lambert-St Louis

Sun 6/28

2:15 pm-7:50 am

1 stop10h 35m

$773

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/22

9:40 am-8:25 pm

1 stop17h 45m

Lambert-St Louis

Sun 6/28

2:15 pm-7:50 am

1 stop10h 35m

$777

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/22

6:20 am-3:46 pm

2 stops16h 26m

Lambert-St Louis

Sun 6/28

1:13 pm-9:00 am

1 stop12h 47m

$785
Quickest round-trip

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/22

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 6/28

1:13 pm-9:00 am

1 stop12h 47m

$788

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 month to fly to St. Louis?

In general, September 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 $0. The month of February is another great option to travel to St. Louis, with average flight prices from Brussels Bruxelles-National Airport averaging around $0.

Can stopping save me money on Brussels Bruxelles-National Airport to St. Louis flights?

You could potentially save up to 48% on your flight if you consider stops on a Brussels Bruxelles-National Airport to St. Louis flight.

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

Fastest flight time

14h 16m

Direct flights

None
The fastest flight from Brussels Bruxelles-National Airport to St. Louis takes 14h 16m
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

Frequently asked questions about flying from Brussels Bruxelles-National Airport to St. Louis

  • 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 14h 16m, 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 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.

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

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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