Cheap Flights To Brussels 2026

Brussels Flights as Low as $76

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
Delta
Sat, Oct 10 - Sat, Oct 17
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$117
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Oct 10 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Oct 17, priced at $117 found 2 days ago
Southwest Airlines
American Airlines
Frontier Airlines
Frontier Airlines
Wed, Oct 7 - Wed, Oct 14
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$168
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Wed, Oct 14, priced at $168 found 1 day ago
Frontier Airlines
Frontier Airlines
United
Tue, Nov 17 - Wed, Dec 2
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$217
Roundtrip
found 6 hours ago
Select United flight, departing Tue, Nov 17 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Wed, Dec 2, priced at $217 found 6 hours ago
Frontier Airlines
Delta
Sat, Oct 24 - Tue, Nov 10
GEG
Spokane Intl.
STL
Lambert-St. Louis Intl.
$313
Roundtrip
found 12 hours ago
Select Delta flight, departing Sat, Oct 24 from Spokane Intl. to Lambert-St. Louis Intl., returning Tue, Nov 10, priced at $313 found 12 hours ago
Delta
Wed, Dec 2 - Tue, Dec 8
SHV
Shreveport Regional
STL
Lambert-St. Louis Intl.
$319
Roundtrip
found 12 hours ago
Select Delta flight, departing Wed, Dec 2 from Shreveport Regional to Lambert-St. Louis Intl., returning Tue, Dec 8, priced at $319 found 12 hours ago
Delta
Fri, Oct 2 - Fri, Oct 16
PNS
Pensacola Intl.
STL
Lambert-St. Louis Intl.
$323
Roundtrip
found 7 hours ago
Select Delta flight, departing Fri, Oct 2 from Pensacola Intl. to Lambert-St. Louis Intl., returning Fri, Oct 16, priced at $323 found 7 hours ago
Alaska Airlines
Frontier Airlines

Cheap Brussels Flights

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