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Cheap flights from St. Louis to Brussels from $434

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:05 pm - 8:00 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
20h 55m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
8:35 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
11h 50m1 stop Frankfurt am Main
$723Multiple Airlines
Sun, Apr 25 - Fri, Apr 30
Multiple Airlines Logo
4:05 pm - 8:10 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
21h 05m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
7:00 am - 1:45 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 45m1 stop Frankfurt am Main
$724Multiple Airlines
Wed, Feb 3 - Wed, Feb 10
Multiple Airlines Logo
4:05 pm - 8:10 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
21h 05m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
7:00 am - 1:45 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 45m1 stop Frankfurt am Main
$724Multiple Airlines
Wed, Feb 24 - Wed, Mar 3
Multiple Airlines Logo
4:05 pm - 8:10 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
21h 05m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
8:25 am - 1:45 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
12h 20m1 stop Frankfurt am Main
$724Multiple Airlines
Wed, Feb 17 - Wed, Feb 24
Multiple Airlines Logo
4:05 pm - 7:50 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
32h 45m1 stop Toronto Pearson Intl
Multiple Airlines Logo
8:35 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
11h 50m1 stop Frankfurt am Main
$726Multiple Airlines
Sun, Apr 25 - Fri, Apr 30
United Airlines Logo
3:30 pm - 8:55 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
10h 25m1 stop Chicago O'Hare Intl
United Airlines Logo
10:00 am - 3:58 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
36h 58m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$728United Airlines
Sun, Feb 14 - Thu, Feb 18
Multiple Airlines Logo
4:05 pm - 8:10 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
21h 05m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
10:00 am - 3:26 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
36h 26m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$729Multiple Airlines
Wed, Feb 17 - Wed, Feb 24
Multiple Airlines Logo
4:05 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
14h 10m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
10:00 am - 3:26 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
36h 26m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$729Multiple Airlines
Wed, Feb 24 - Wed, Mar 3
Multiple Airlines Logo
4:05 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
14h 10m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
10:00 am - 3:26 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
36h 26m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$729Multiple Airlines
Wed, Feb 3 - Wed, Feb 10
United Airlines Logo
1:08 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
17h 07m2 stops Chicago O'Hare Intl London Heathrow
United Airlines Logo
7:00 am - 1:45 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 45m1 stop Frankfurt am Main
$743United Airlines
Mon, Feb 15 - Fri, Feb 26

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United Airlines flights from St. Louis to Brussels

Our best United Airlines deals on St. Louis to Brussels flight tickets
United Airlines
Feb 14
STL3:30 pmLambert-St Louis
10h 25m
1 stop
BRU8:55 amBrussels Bruxelles-National
Feb 18
BRU10:00 amBrussels Bruxelles-National
36h 58m
2 stops
STL3:58 pmLambert-St Louis
$728
United Airlines
Feb 14
STL1:08 pmLambert-St Louis
17h 07m
2 stops
BRU1:15 pmBrussels Bruxelles-National
Feb 26
BRU7:00 amBrussels Bruxelles-National
13h 45m
1 stop
STL1:45 pmLambert-St Louis
$743
United Airlines
Jan 31
STL7:29 amLambert-St Louis
18h 26m
1 stop
BRU8:55 amBrussels Bruxelles-National
Feb 12
BRU7:00 amBrussels Bruxelles-National
13h 45m
1 stop
STL1:45 pmLambert-St Louis
$744

Air Canada flights from St. Louis to Brussels

Our best Air Canada deals on St. Louis to Brussels flight tickets
Air Canada
Jan 31
STL4:05 pmLambert-St Louis
33h 45m
2 stops
BRU8:50 amBrussels Bruxelles-National
Feb 9
BRU10:00 amBrussels Bruxelles-National
38h 13m
2 stops
STL5:13 pmLambert-St Louis
$730
Air Canada
Feb 20
STL1:08 pmLambert-St Louis
35h 42m
2 stops
BRU7:50 amBrussels Bruxelles-National
Feb 23
BRU10:00 amBrussels Bruxelles-National
38h 34m
2 stops
STL5:34 pmLambert-St Louis
$731
Air Canada
Feb 5
STL4:05 pmLambert-St Louis
56h 45m
2 stops
BRU7:50 amBrussels Bruxelles-National
Feb 11
BRU10:00 amBrussels Bruxelles-National
39h 19m
2 stops
STL6:19 pmLambert-St Louis
$734

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Brussels that are best for you.

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Route

Depart

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Price

Cheapest round-trip

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 4/25

4:05 pm-8:00 pm

2 stops20h 55m

Brussels Bruxelles-National

Fri 4/30

8:35 am-1:25 pm

1 stop11h 50m

$723

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Wed 2/3

4:05 pm-8:10 pm

2 stops21h 05m

Brussels Bruxelles-National

Wed 2/10

7:00 am-1:45 pm

1 stop13h 45m

$724

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Wed 2/24

4:05 pm-8:10 pm

2 stops21h 05m

Brussels Bruxelles-National

Wed 3/3

7:00 am-1:45 pm

1 stop13h 45m

$724

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Wed 2/17

4:05 pm-8:10 pm

2 stops21h 05m

Brussels Bruxelles-National

Wed 2/24

8:25 am-1:45 pm

1 stop12h 20m

$724

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 4/25

4:05 pm-7:50 am

1 stop32h 45m

Brussels Bruxelles-National

Fri 4/30

8:35 am-1:25 pm

1 stop11h 50m

$726

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 2/14

3:30 pm-8:55 am

1 stop10h 25m

Brussels Bruxelles-National

Thu 2/18

10:00 am-3:58 pm

2 stops36h 58m

$728

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Wed 2/17

4:05 pm-8:10 pm

2 stops21h 05m

Brussels Bruxelles-National

Wed 2/24

10:00 am-3:26 pm

2 stops36h 26m

$729

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Wed 2/24

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Wed 3/3

10:00 am-3:26 pm

2 stops36h 26m

$729

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Wed 2/3

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Wed 2/10

10:00 am-3:26 pm

2 stops36h 26m

$729
Quickest round-trip

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Mon 2/15

1:08 pm-1:15 pm

2 stops17h 07m

Brussels Bruxelles-National

Fri 2/26

7:00 am-1:45 pm

1 stop13h 45m

$743

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 Brussels from

How to get the cheapest flight ticket from St. Louis to Brussels

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 Brussels?

In general, January is the cheapest month to fly from St. Louis to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Brussels during the month of January, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $494.

Cheap St. Louis to Brussels flight deals and tips

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

Best Price Found

$434

Fastest flight time

13h 36m

Direct flights

None
The best one-way flight to Brussels from St. Louis in the past 72 hours is $434. The best round-trip flight deal from St. Louis to Brussels found on momondo in the last 72 hours is $723.
The fastest flight from St. Louis to Brussels takes 13h 36m
There are no direct flights from St. Louis to Brussels. There are no popular flight routes from St. Louis to Brussels.
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Frequently asked questions about flying from St. Louis to Brussels

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

    There are 4389.6 mi between Lambert-St Louis and Brussels. By plane, this route typically takes 13h 36m.

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

    Prices for flights from Lambert-St Louis Airport to Brussels are refreshed on a daily basis.

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

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

    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 Lambert-St Louis Airport to Brussels.

  • What documentation or ID do you need to fly to Brussels?

    The travel and health documents required for your trip to Brussels can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Brussels. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from St. Louis to Brussels

Compare and see reviews for airlines that fly from St. Louis to Brussels with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $507Free CancellationRating
7.3
10,461 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to Brussels from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Brussels quick and easy, saving you time and money.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Brussels.

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

If you are simply researching potential flights to Brussels, momondo offers a useful price alert feature which will track prices for flights to Brussels from St. Louis and alert you when they change.

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Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Brussels Bruxelles-National Airport
Charleroi Brussels Airport