Cheap Flights To Brussels 2025

Brussels Flights as Low as $189

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.

Spirit Airlines
Sat, Aug 2 - Fri, Aug 8
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$189 Roundtrip, found 22 hours ago
$189
Roundtrip
found 22 hours ago
Select Spirit Airlines flight, departing Sat, Aug 2 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Fri, Aug 8, priced at $189 found 22 hours ago
Spirit Airlines
Thu, Aug 28 - Thu, Sep 4
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$198 Roundtrip, found 4 days ago
$198
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Thu, Aug 28 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Sep 4, priced at $198 found 4 days ago
Spirit Airlines
Sat, Aug 2 - Thu, Aug 7
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$199 Roundtrip, found 22 hours ago
$199
Roundtrip
found 22 hours ago
Select Spirit Airlines flight, departing Sat, Aug 2 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Aug 7, priced at $199 found 22 hours ago
Frontier Airlines
Sat, Jul 12 - Thu, Jul 17
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$201 Roundtrip, found 1 day ago
$201
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Thu, Jul 17, priced at $201 found 1 day ago
Frontier Airlines
Tue, Jul 8 - Sat, Jul 12
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$201 Roundtrip, found 1 day ago
$201
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jul 8 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Sat, Jul 12, priced at $201 found 1 day ago
Frontier Airlines
Tue, Jul 22 - Mon, Jul 28
OMA
Eppley Field
STL
Lambert-St. Louis Intl.
$205 Roundtrip, found 1 day ago
$205
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jul 22 from Eppley Field to Lambert-St. Louis Intl., returning Mon, Jul 28, priced at $205 found 1 day ago
Delta
Tue, Jul 8 - Sat, Jul 12
CAE
Columbia Metropolitan
STL
Lambert-St. Louis Intl.
$217 Roundtrip, found 1 day ago
$217
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jul 8 from Columbia Metropolitan to Lambert-St. Louis Intl., returning Sat, Jul 12, priced at $217 found 1 day ago
Delta
Fri, Jul 4 - Sat, Jul 5
DCA
Ronald Reagan Washington National
STL
Lambert-St. Louis Intl.
$217 Roundtrip, found 4 days ago
$217
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Jul 4 from Ronald Reagan Washington National to Lambert-St. Louis Intl., returning Sat, Jul 5, priced at $217 found 4 days ago
Frontier Airlines
Sun, Jul 27 - Wed, Jul 30
ORF
Norfolk Intl.
STL
Lambert-St. Louis Intl.
$223 Roundtrip, found 1 day ago
$223
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Jul 27 from Norfolk Intl. to Lambert-St. Louis Intl., returning Wed, Jul 30, priced at $223 found 1 day ago
Frontier Airlines
Sun, Aug 24 - Sun, Aug 24
SFO
San Francisco Intl.
STL
Lambert-St. Louis Intl.
$225 Roundtrip, found 19 hours ago
$225
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Sun, Aug 24 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Aug 24, priced at $225 found 19 hours ago
American Airlines
Sun, Aug 10 - Fri, Aug 15
DCA
Ronald Reagan Washington National
STL
Lambert-St. Louis Intl.
$229 Roundtrip, found 1 day ago
$229
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Aug 10 from Ronald Reagan Washington National to Lambert-St. Louis Intl., returning Fri, Aug 15, priced at $229 found 1 day ago
United
Sun, Aug 10 - Fri, Aug 15
DCA
Ronald Reagan Washington National
STL
Lambert-St. Louis Intl.
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 10 from Ronald Reagan Washington National to Lambert-St. Louis Intl., returning Fri, Aug 15, priced at $249 found 1 day ago
Delta
Fri, May 30 - Sun, Jun 8
JAX
Jacksonville Intl.
STL
Lambert-St. Louis Intl.
$267 Roundtrip, found 20 hours ago
$267
Roundtrip
found 20 hours ago
Select Delta flight, departing Fri, May 30 from Jacksonville Intl. to Lambert-St. Louis Intl., returning Sun, Jun 8, priced at $267 found 20 hours ago
Delta
Fri, Jul 4 - Fri, Jul 11
AGS
Augusta Regional
STL
Lambert-St. Louis Intl.
$311 Roundtrip, found 1 day ago
$311
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Jul 4 from Augusta Regional to Lambert-St. Louis Intl., returning Fri, Jul 11, priced at $311 found 1 day ago
Alaska Airlines
Wed, Aug 27 - Thu, Aug 28
SFO
San Francisco Intl.
STL
Lambert-St. Louis Intl.
$356 Roundtrip, found 19 hours ago
$356
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Wed, Aug 27 from San Francisco Intl. to Lambert-St. Louis Intl., returning Thu, Aug 28, priced at $356 found 19 hours ago
American Airlines
Sun, Aug 10 - Sun, Aug 17
BOI
Boise
STL
Lambert-St. Louis Intl.
$363 Roundtrip, found 20 hours ago
$363
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sun, Aug 10 from Boise to Lambert-St. Louis Intl., returning Sun, Aug 17, priced at $363 found 20 hours ago

Cheap Brussels Flights

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