
Flights from Boston to Brussels
Cheapest flights from Boston
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.

Sat, Aug 2 - Sun, Aug 3
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$202 Roundtrip, found 2 days ago
$202
Roundtrip
found 2 days ago

Sat, Aug 2 - Tue, Aug 5
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$208 Roundtrip, found 14 hours ago
$208
Roundtrip
found 14 hours ago

Wed, Jul 30 - Sat, Aug 2
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$215 Roundtrip, found 2 days ago
$215
Roundtrip
found 2 days ago

Tue, Aug 5 - Tue, Aug 5
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$217 Roundtrip, found 2 days ago
$217
Roundtrip
found 2 days ago

Fri, Aug 1 - Sun, Aug 3
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$217 Roundtrip, found 2 days ago
$217
Roundtrip
found 2 days ago

Sat, Aug 2 - Thu, Aug 7
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$223 Roundtrip, found 4 days ago
$223
Roundtrip
found 4 days ago

Sun, Aug 3 - Thu, Aug 7
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$224 Roundtrip, found 2 days ago
$224
Roundtrip
found 2 days ago

Fri, Aug 1 - Tue, Aug 5
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$230 Roundtrip, found 2 days ago
$230
Roundtrip
found 2 days ago

Sun, Aug 3 - Tue, Aug 5
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$237 Roundtrip, found 2 days ago
$237
Roundtrip
found 2 days ago

Fri, Aug 1 - Sat, Aug 2
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$238 Roundtrip, found 2 days ago
$238
Roundtrip
found 2 days ago

Fri, Aug 1 - Thu, Aug 7
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$243 Roundtrip, found 4 days ago
$243
Roundtrip
found 4 days ago

Sat, Aug 2 - Sat, Aug 9
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$244 Roundtrip, found 4 days ago
$244
Roundtrip
found 4 days ago

Thu, Jul 31 - Sun, Aug 3
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$249 Roundtrip, found 2 days ago
$249
Roundtrip
found 2 days ago

Thu, Jul 31 - Tue, Aug 5
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$253 Roundtrip, found 4 days ago
$253
Roundtrip
found 4 days ago

Sat, Aug 2 - Wed, Aug 6
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$258 Roundtrip, found 2 days ago
$258
Roundtrip
found 2 days ago

Thu, Jul 31 - Thu, Aug 7
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$260 Roundtrip, found 2 hours ago
$260
Roundtrip
found 2 hours ago

Fri, Aug 1 - Fri, Aug 8
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$306 Roundtrip, found 2 days ago
$306
Roundtrip
found 2 days ago

Sat, Aug 2 - Tue, Aug 5
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$315 Roundtrip, found 14 hours ago
$315
Roundtrip
found 14 hours ago

Sat, Aug 2 - Tue, Aug 5
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$374 Roundtrip, found 14 hours ago
$374
Roundtrip
found 14 hours ago

Sat, Aug 2 - Tue, Aug 5
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$387 Roundtrip, found 14 hours ago
$387
Roundtrip
found 14 hours ago