Cheap Flights To Brussels 2026

Brussels Flights as Low as $188

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
American Airlines
Frontier Airlines
United
Fri, Nov 13 - Wed, Dec 2
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$217
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Nov 13 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Wed, Dec 2, priced at $217 found 10 hours ago
American Airlines
Delta
Fri, Nov 13 - Wed, Dec 2
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$237
Roundtrip
found 10 hours ago
Select Delta flight, departing Fri, Nov 13 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Wed, Dec 2, priced at $237 found 10 hours ago
Frontier Airlines
Frontier Airlines
Southwest Airlines
Southwest Airlines
American Airlines
Delta
Sat, Nov 21 - Fri, Nov 27
TVC
Cherry Capital
STL
Lambert-St. Louis Intl.
$354
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov 21 from Cherry Capital to Lambert-St. Louis Intl., returning Fri, Nov 27, priced at $354 found 1 day ago
Frontier Airlines
Delta
Delta
Wed, Oct 21 - Tue, Oct 27
AGS
Augusta Regional
STL
Lambert-St. Louis Intl.
$485
Roundtrip
found 17 hours ago
Select Delta flight, departing Wed, Oct 21 from Augusta Regional to Lambert-St. Louis Intl., returning Tue, Oct 27, priced at $485 found 17 hours ago

Cheap Brussels Flights

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