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Cheap flights from St. Louis to Brussels from $330

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.
United Airlines Logo
10:50 am - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
19h 25m2 stops Chicago O'Hare Intl London Heathrow
United Airlines Logo
10:00 am - 4:19 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
37h 19m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$727United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
9:37 am - 8:55 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
16h 18m1 stop Chicago O'Hare Intl
United Airlines Logo
10:00 am - 4:19 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
37h 19m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$731United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
1:19 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
16h 56m2 stops Washington, D.C. Dulles 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
$744United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
10:50 am - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
19h 25m2 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
$744United Airlines
Mon, Dec 7 - Fri, Dec 11
Multiple Airlines Logo
4:05 pm - 7:50 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
56h 45m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
10:50 am - 11:56 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
20h 06m2 stops London Heathrow Dallas/Fort Worth
$842Multiple Airlines
Fri, Feb 5 - Mon, Jul 5
Multiple Airlines Logo
12:10 pm - 7:10 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
12h 00m1 stop Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
7:30 pm - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
24h 55m1 stop Frankfurt am Main
$855Multiple Airlines
Wed, Sep 30 - Mon, Oct 5
Multiple Airlines Logo
12:10 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
18h 05m2 stops Montreal Pierre Elliott Trudeau Intl London Heathrow
Multiple Airlines Logo
7:30 pm - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
24h 55m1 stop Frankfurt am Main
$857Multiple Airlines
Wed, Sep 30 - Mon, Oct 5
Lufthansa Logo
1:19 pm - 7:15 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
10h 56m1 stop Washington, D.C. Dulles Intl
Lufthansa Logo
10:10 am - 9:22 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
18h 12m1 stop Chicago O'Hare Intl
$2,196Lufthansa
Sun, Dec 13 - Sun, Dec 27
Lufthansa Logo
1:15 pm - 4:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
20h 00m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
11:55 am - 7:35 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
14h 40m1 stop Washington, D.C. Dulles Intl
$2,217Lufthansa
Sun, Dec 13 - Sun, Dec 27
Lufthansa Logo
1:19 pm - 7:15 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
10h 56m1 stop Washington, D.C. Dulles Intl
Lufthansa Logo
10:10 am - 9:22 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
18h 12m1 stop Chicago O'Hare Intl
$2,217Lufthansa
Sun, Dec 13 - Sun, Dec 27

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Air Canada flights from St. Louis to Brussels

Our best Air Canada deals on St. Louis to Brussels flight tickets
Air Canada
Oct 11
STL12:10 pmLambert-St Louis
37h 45m
2 stops
BRU8:55 amBrussels Bruxelles-National
Oct 18
BRU9:10 amBrussels Bruxelles-National
35h 50m
2 stops
STL2:00 pmLambert-St Louis
$865
Air Canada
Sep 30
STL12:10 pmLambert-St Louis
18h 05m
2 stops
BRU1:15 pmBrussels Bruxelles-National
Oct 5
BRU9:10 amBrussels Bruxelles-National
34h 03m
2 stops
STL12:13 pmLambert-St Louis
$873
Air Canada
Oct 13
STL12:10 pmLambert-St Louis
24h 50m
2 stops
BRU8:00 pmBrussels Bruxelles-National
Oct 20
BRU9:10 amBrussels Bruxelles-National
34h 03m
2 stops
STL12:13 pmLambert-St Louis
$883

Lufthansa flights from St. Louis to Brussels

Our best Lufthansa deals on St. Louis to Brussels flight tickets
Lufthansa
Sep 12
STL12:28 pmLambert-St Louis
12h 17m
1 stop
BRU7:45 amBrussels Bruxelles-National
Sep 19
BRU10:15 amBrussels Bruxelles-National
18h 18m
1 stop
STL9:33 pmLambert-St Louis
$7,526
Lufthansa
Sep 12
STL12:35 pmLambert-St Louis
17h 35m
2 stops
BRU1:10 pmBrussels Bruxelles-National
Sep 19
BRU10:15 amBrussels Bruxelles-National
12h 23m
1 stop
STL3:38 pmLambert-St Louis
$7,547

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

Mon 12/7

10:50 am-1:15 pm

2 stops19h 25m

Brussels Bruxelles-National

Fri 12/11

10:00 am-4:19 pm

2 stops37h 19m

$727

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Mon 12/7

9:37 am-8:55 am

1 stop16h 18m

Brussels Bruxelles-National

Fri 12/11

10:00 am-4:19 pm

2 stops37h 19m

$731

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Mon 12/7

1:19 pm-1:15 pm

2 stops16h 56m

Brussels Bruxelles-National

Fri 12/11

7:00 am-1:45 pm

1 stop13h 45m

$744

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Mon 12/7

10:50 am-1:15 pm

2 stops19h 25m

Brussels Bruxelles-National

Fri 12/11

7:00 am-1:45 pm

1 stop13h 45m

$744

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Fri 2/5

4:05 pm-7:50 am

2 stops56h 45m

Brussels Bruxelles-National

Mon 7/5

10:50 am-11:56 pm

2 stops20h 06m

$842

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Wed 9/30

12:10 pm-7:10 am

1 stop12h 00m

Brussels Bruxelles-National

Mon 10/5

7:30 pm-1:25 pm

1 stop24h 55m

$855

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Wed 9/30

12:10 pm-1:15 pm

2 stops18h 05m

Brussels Bruxelles-National

Mon 10/5

7:30 pm-1:25 pm

1 stop24h 55m

$857
Quickest round-trip

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 12/13

1:19 pm-7:15 am

1 stop10h 56m

Brussels Bruxelles-National

Sun 12/27

10:10 am-9:22 pm

1 stop18h 12m

$2,196

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 12/13

1:15 pm-4:15 pm

2 stops20h 00m

Brussels Bruxelles-National

Sun 12/27

11:55 am-7:35 pm

1 stop14h 40m

$2,217

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 12/13

1:19 pm-7:15 am

1 stop10h 56m

Brussels Bruxelles-National

Sun 12/27

10:10 am-9:22 pm

1 stop18h 12m

$2,217

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, February 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 $494. If you are unable to visit Brussels during the month of February, then departing from St. Louis during the month January is also very affordable. Most momondo users find prices during this month for around $657.

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

$330

Fastest flight time

12h 00m

Direct flights

None
The best one-way flight to Brussels from St. Louis in the past 72 hours is $330. The best round-trip flight deal from St. Louis to Brussels found on momondo in the last 72 hours is $727.
The fastest flight from St. Louis to Brussels takes 12h 00m
There are no direct flights from St. Louis to Brussels. There are no popular flight routes from St. Louis to Brussels.
Search flight deals

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 12h 00m.

  • 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
LufthansaPriceFrom $441Free CancellationRating
6.8
8,226 reviews
Search Lufthansa flights
United AirlinesPriceFrom $507Free CancellationRating
7.4
10,148 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