Cheap Flights To Brussels 2025

Brussels Flights as Low as $103

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
Sat, Aug 23 - Thu, Sep 4
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$103 Roundtrip, found 4 hours ago
$103
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Aug 23 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Thu, Sep 4, priced at $103 found 4 hours ago
Spirit Airlines
Sat, Aug 2 - Fri, Aug 8
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$127 Roundtrip, found 6 days ago
$127
Roundtrip
found 6 days 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 $127 found 6 days ago
Delta
Tue, Aug 26 - Mon, Sep 1
BOI
Boise
STL
Lambert-St. Louis Intl.
$165 Roundtrip, found 8 hours ago
$165
Roundtrip
found 8 hours ago
Select Delta flight, departing Tue, Aug 26 from Boise to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $165 found 8 hours ago
American Airlines
Mon, Aug 25 - Sun, Aug 31
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$178 Roundtrip, found 4 hours ago
$178
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Mon, Aug 25 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sun, Aug 31, priced at $178 found 4 hours ago
American Airlines
Tue, Oct 21 - Sat, Oct 25
ONT
Los Angeles - Ontario Intl.
STL
Lambert-St. Louis Intl.
$185 Roundtrip, found 20 hours ago
$185
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $185 found 20 hours ago
Hawaiian Airlines
Thu, Sep 11 - Tue, Sep 16
PSP
Palm Springs Intl.
STL
Lambert-St. Louis Intl.
$203 Roundtrip, found 11 hours ago
$203
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Thu, Sep 11 from Palm Springs Intl. to Lambert-St. Louis Intl., returning Tue, Sep 16, priced at $203 found 11 hours ago
Hawaiian Airlines
Mon, Sep 15 - Tue, Sep 16
ONT
Los Angeles - Ontario Intl.
STL
Lambert-St. Louis Intl.
$203 Roundtrip, found 11 hours ago
$203
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Mon, Sep 15 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Tue, Sep 16, priced at $203 found 11 hours ago
United
Tue, Aug 26 - Tue, Aug 26
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$208 Roundtrip, found 4 hours ago
$208
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Aug 26 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Aug 26, priced at $208 found 4 hours ago
Frontier Airlines
Thu, Jul 24 - Sun, Jul 27
LAS
Harry Reid Intl.
STL
Lambert-St. Louis Intl.
$224 Roundtrip, found 8 hours ago
$224
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Thu, Jul 24 from Harry Reid Intl. to Lambert-St. Louis Intl., returning Sun, Jul 27, priced at $224 found 8 hours ago
Spirit Airlines
Wed, Jul 23 - Tue, Aug 5
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$233 Roundtrip, found 1 day ago
$233
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Wed, Jul 23 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Tue, Aug 5, priced at $233 found 1 day ago
Alaska Airlines
Fri, Sep 12 - Mon, Sep 15
PSP
Palm Springs Intl.
STL
Lambert-St. Louis Intl.
$248 Roundtrip, found 11 hours ago
$248
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Sep 12 from Palm Springs Intl. to Lambert-St. Louis Intl., returning Mon, Sep 15, priced at $248 found 11 hours ago
Delta
Sat, Nov 8 - Wed, Nov 12
RAP
Rapid City Regional
STL
Lambert-St. Louis Intl.
$249 Roundtrip, found 6 hours ago
$249
Roundtrip
found 6 hours ago
Select Delta flight, departing Sat, Nov 8 from Rapid City Regional to Lambert-St. Louis Intl., returning Wed, Nov 12, priced at $249 found 6 hours ago
Delta
Wed, Jul 16 - Thu, Jul 24
DAL
Love Field
STL
Lambert-St. Louis Intl.
$477 Roundtrip, found 18 hours ago
$477
Roundtrip
found 18 hours ago
Select Delta flight, departing Wed, Jul 16 from Love Field to Lambert-St. Louis Intl., returning Thu, Jul 24, priced at $477 found 18 hours ago
British Airways
Fri, Aug 29 - Mon, Sep 1
CDG
Roissy-Charles de Gaulle
STL
Lambert-St. Louis Intl.
$714 Roundtrip, found 5 hours ago
$714
Roundtrip
found 5 hours ago
Select British Airways flight, departing Fri, Aug 29 from Roissy-Charles de Gaulle to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $714 found 5 hours ago
Air Canada
Fri, Aug 29 - Mon, Sep 1
CDG
Roissy-Charles de Gaulle
STL
Lambert-St. Louis Intl.
$779 Roundtrip, found 5 hours ago
$779
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Fri, Aug 29 from Roissy-Charles de Gaulle to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $779 found 5 hours ago
Brussels Airlines
Fri, Aug 29 - Mon, Sep 1
CDG
Roissy-Charles de Gaulle
STL
Lambert-St. Louis Intl.
$811 Roundtrip, found 5 hours ago
$811
Roundtrip
found 5 hours ago
Select Brussels Airlines flight, departing Fri, Aug 29 from Roissy-Charles de Gaulle to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $811 found 5 hours ago

Cheap Brussels Flights

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