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Cheap flights from St. Louis to Brussels from $412

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
8:05 am - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
22h 10m2 stops Chicago O'Hare Intl London Heathrow
United Airlines Logo
10:00 am - 10:10 amBRU  Brussels Bruxelles-National-STL Lambert-St Louis
31h 10m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$727United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
3:30 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
14h 45m2 stops Chicago O'Hare Intl London Heathrow
United Airlines Logo
10:00 am - 12:10 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
33h 10m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$727United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
8:30 am - 7:15 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
15h 45m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
10:00 am - 10:10 amBRU  Brussels Bruxelles-National-STL Lambert-St Louis
31h 10m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$730United Airlines
Mon, Dec 7 - Fri, Dec 11
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 - 10:10 amBRU  Brussels Bruxelles-National-STL Lambert-St Louis
31h 10m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$731Air Canada
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
6:33 am - 8:55 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
19h 22m1 stop Chicago O'Hare Intl
United Airlines Logo
10:00 am - 12:10 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
33h 10m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$731United Airlines
Mon, Dec 7 - Fri, Dec 11
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
9:10 pm - 3:26 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
49h 16m2 stops London Heathrow Toronto Pearson Intl
$743Multiple Airlines
Sun, Nov 1 - Mon, Dec 7
Air Canada Logo
8:00 am - 7:10 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
40h 10m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
10:00 am - 4:59 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
37h 59m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$761Air Canada
Sat, Oct 3 - Tue, Nov 3
Lufthansa Logo
4:05 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
38h 10m2 stops Toronto Pearson Intl London Heathrow
Lufthansa Logo
11:15 am - 10:59 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
18h 44m1 stop Newark
$1,067Lufthansa
Sun, Dec 20 - Mon, Dec 28
Lufthansa Logo
4:05 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
38h 10m2 stops Toronto Pearson Intl London Heathrow
Lufthansa Logo
11:55 am - 7:35 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
14h 40m1 stop Washington, D.C. Dulles Intl
$1,067Lufthansa
Sun, Dec 20 - Mon, Dec 28
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

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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 3
STL8:00 amLambert-St Louis
40h 10m
2 stops
BRU7:10 amBrussels Bruxelles-National
Nov 3
BRU10:00 amBrussels Bruxelles-National
37h 59m
2 stops
STL4:59 pmLambert-St Louis
$761
Air Canada
Sep 23
STL12:10 pmLambert-St Louis
12h 00m
1 stop
BRU7:10 amBrussels Bruxelles-National
Oct 11
BRU9:10 amBrussels Bruxelles-National
16h 31m
1 stop
STL6:41 pmLambert-St Louis
$844
Air Canada
Sep 23
STL12:10 pmLambert-St Louis
18h 05m
2 stops
BRU1:15 pmBrussels Bruxelles-National
Oct 11
BRU9:10 amBrussels Bruxelles-National
42h 10m
2 stops
STL8:20 pmLambert-St Louis
$865

United Airlines flights from St. Louis to Brussels

Our best United Airlines deals on St. Louis to Brussels flight tickets
United Airlines
Nov 1
STL1:08 pmLambert-St Louis
12h 47m
1 stop
BRU8:55 amBrussels Bruxelles-National
Dec 7
BRU11:15 amBrussels Bruxelles-National
18h 00m
1 stop
STL10:15 pmLambert-St Louis
$798
United Airlines
Oct 19
STL12:10 pmLambert-St Louis
18h 05m
2 stops
BRU1:15 pmBrussels Bruxelles-National
Oct 26
BRU1:45 pmBrussels Bruxelles-National
35h 45m
2 stops
STL7:30 pmLambert-St Louis
$822
United Airlines
Oct 9
STL12:10 pmLambert-St Louis
18h 05m
2 stops
BRU1:15 pmBrussels Bruxelles-National
Oct 16
BRU9:10 amBrussels Bruxelles-National
37h 33m
2 stops
STL3:43 pmLambert-St Louis
$843

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Mon 12/7

8:05 am-1:15 pm

2 stops22h 10m

Brussels Bruxelles-National

Fri 12/11

10:00 am-10:10 am

2 stops31h 10m

$727

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Mon 12/7

3:30 pm-1:15 pm

2 stops14h 45m

Brussels Bruxelles-National

Fri 12/11

10:00 am-12:10 pm

2 stops33h 10m

$727

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Mon 12/7

8:30 am-7:15 am

1 stop15h 45m

Brussels Bruxelles-National

Fri 12/11

10:00 am-10:10 am

2 stops31h 10m

$730

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Mon 12/7

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Fri 12/11

10:00 am-10:10 am

2 stops31h 10m

$731

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Mon 12/7

6:33 am-8:55 am

1 stop19h 22m

Brussels Bruxelles-National

Fri 12/11

10:00 am-12:10 pm

2 stops33h 10m

$731

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 11/1

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Mon 12/7

9:10 pm-3:26 pm

2 stops49h 16m

$743

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sat 10/3

8:00 am-7:10 am

2 stops40h 10m

Brussels Bruxelles-National

Tue 11/3

10:00 am-4:59 pm

2 stops37h 59m

$761

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 12/20

4:05 pm-1:15 pm

2 stops38h 10m

Brussels Bruxelles-National

Mon 12/28

11:15 am-10:59 pm

1 stop18h 44m

$1,067

St. LouisBrussels

STL Lambert-St Louis - BRU Brussels Bruxelles-National

STLBRU

Lambert-St Louis

Sun 12/20

4:05 pm-1:15 pm

2 stops38h 10m

Brussels Bruxelles-National

Mon 12/28

11:55 am-7:35 pm

1 stop14h 40m

$1,067
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

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

$412

Fastest flight time

10h 10m

Direct flights

None
The best one-way flight to Brussels from St. Louis in the past 72 hours is $412. 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 10h 10m
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 10m.

  • 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
8,217 reviews
Search Lufthansa flights
United AirlinesPriceFrom $507Free CancellationRating
7.4
10,121 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