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Cheap flights from St. Louis to Brussels from $429

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 - 7:50 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
32h 45m1 stop Toronto Pearson Intl
Multiple Airlines Logo
7:00 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 25m1 stop Frankfurt am Main
$723Multiple Airlines
Sun, Apr 25 - Fri, Apr 30
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
7:00 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 25m1 stop Frankfurt am Main
$725Multiple Airlines
Sun, Apr 25 - Fri, Apr 30
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
7:00 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 25m1 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 - 8:00 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
20h 55m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
7:00 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 25m1 stop Frankfurt am Main
$729Multiple Airlines
Sun, Apr 25 - Fri, Apr 30
Air Canada Logo
4:05 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
14h 10m2 stops Toronto Pearson Intl London Heathrow
Air Canada Logo
10:00 am - 12:06 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
33h 06m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$730Air Canada
Sun, Feb 14 - Thu, Feb 18
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
7:00 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 25m1 stop Frankfurt am Main
$730Multiple Airlines
Sun, Apr 25 - Fri, Apr 30
Air Canada Logo
6:15 am - 7:50 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
18h 35m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
10:00 am - 12:06 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
33h 06m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$731Air Canada
Sun, Feb 14 - Thu, Feb 18
Air Canada Logo
8:00 am - 7:50 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
16h 50m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
10:00 am - 12:06 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
33h 06m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$731Air Canada
Sun, Feb 14 - Thu, Feb 18
United Airlines Logo
9:52 am - 8:05 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
15h 13m1 stop Newark
United Airlines Logo
10:10 am - 7:24 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
16h 14m1 stop Chicago O'Hare Intl
$748United Airlines
Sun, Feb 14 - Thu, Feb 18

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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
STL9:52 amLambert-St Louis
15h 13m
1 stop
BRU8:05 amBrussels Bruxelles-National
Feb 18
BRU10:10 amBrussels Bruxelles-National
16h 14m
1 stop
STL7:24 pmLambert-St Louis
$748
United Airlines
Mar 3
STL4:39 pmLambert-St Louis
13h 36m
2 stops
BRU1:15 pmBrussels Bruxelles-National
Mar 9
BRU10:00 amBrussels Bruxelles-National
32h 28m
2 stops
STL11:28 amLambert-St Louis
$800

Air Canada flights from St. Louis to Brussels

Our best Air Canada deals on St. Louis to Brussels flight tickets
Air Canada
Feb 14
STL4:05 pmLambert-St Louis
14h 10m
2 stops
BRU1:15 pmBrussels Bruxelles-National
Feb 18
BRU10:00 amBrussels Bruxelles-National
33h 06m
2 stops
STL12:06 pmLambert-St Louis
$730
Air Canada
Feb 14
STL8:00 amLambert-St Louis
16h 50m
2 stops
BRU7:50 amBrussels Bruxelles-National
Feb 18
BRU10:00 amBrussels Bruxelles-National
33h 06m
2 stops
STL12:06 pmLambert-St Louis
$731
Air Canada
Apr 25
STL4:05 pmLambert-St Louis
20h 55m
2 stops
BRU8:00 pmBrussels Bruxelles-National
Apr 30
BRU9:30 amBrussels Bruxelles-National
34h 39m
2 stops
STL1:09 pmLambert-St Louis
$752

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

Return

Price

Cheapest round-trip

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

7:00 am-1:25 pm

1 stop13h 25m

$723

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

7:00 am-1:25 pm

1 stop13h 25m

$725

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

7:00 am-1:25 pm

1 stop13h 25m

$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

Sun 4/25

4:05 pm-8:00 pm

2 stops20h 55m

Brussels Bruxelles-National

Fri 4/30

7:00 am-1:25 pm

1 stop13h 25m

$729

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 2/14

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Thu 2/18

10:00 am-12:06 pm

2 stops33h 06m

$730

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

7:00 am-1:25 pm

1 stop13h 25m

$730

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 2/14

6:15 am-7:50 am

2 stops18h 35m

Brussels Bruxelles-National

Thu 2/18

10:00 am-12:06 pm

2 stops33h 06m

$731

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 2/14

8:00 am-7:50 am

2 stops16h 50m

Brussels Bruxelles-National

Thu 2/18

10:00 am-12:06 pm

2 stops33h 06m

$731
Quickest round-trip

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 2/14

9:52 am-8:05 am

1 stop15h 13m

Brussels Bruxelles-National

Thu 2/18

10:10 am-7:24 pm

1 stop16h 14m

$748

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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

$429

Fastest flight time

10h 25m

Direct flights

None
The best one-way flight to Brussels from St. Louis in the past 72 hours is $429. 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 10h 25m
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 10h 25m.

  • 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
10,471 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