Brussels Airlines Flight 3721 Deals & Information (2026/2027)

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Brussels Airlines Flight 3721 Route Deals From $75

The cheapest prices found with in the last 7 days for return flights were $126 and $75 for one-way flights to Adolfo Suárez Madrid-Barajas for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 3 - Wed, Dec 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$126 Roundtrip, found 6 days ago
$126
Roundtrip
found 6 days ago
Select Brussels Airlines flight, departing Thu, Dec 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Dec 9, priced at $126 found 6 days ago
Tue, Mar 2 - Tue, Mar 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$131 Roundtrip, found 1 day ago
$131
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Tue, Mar 2 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Mar 9, priced at $131 found 1 day ago
Wed, Nov 25 - Wed, Dec 2
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$136 Roundtrip, found 4 days ago
$136
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Wed, Nov 25 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Dec 2, priced at $136 found 4 days ago
Wed, Nov 25 - Wed, Dec 2
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$137 Roundtrip, found 4 days ago
$137
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Wed, Nov 25 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Dec 2, priced at $137 found 4 days ago
Wed, Aug 25 - Wed, Sep 1
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$138 Roundtrip, found 14 hours ago
$138
Roundtrip
found 14 hours ago
Select Brussels Airlines flight, departing Wed, Aug 25 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Sep 1, priced at $138 found 14 hours ago
Tue, Mar 9 - Sat, Mar 13
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$140 Roundtrip, found 3 days ago
$140
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Tue, Mar 9 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sat, Mar 13, priced at $140 found 3 days ago
Tue, Feb 2 - Sat, Feb 6
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$142 Roundtrip, found 13 hours ago
$142
Roundtrip
found 13 hours ago
Select Brussels Airlines flight, departing Tue, Feb 2 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sat, Feb 6, priced at $142 found 13 hours ago
Fri, Dec 4 - Tue, Dec 15
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$145 Roundtrip, found 3 days ago
$145
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Fri, Dec 4 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Dec 15, priced at $145 found 3 days ago
Tue, Mar 2 - Sat, Mar 6
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$148 Roundtrip, found 2 hours ago
$148
Roundtrip
found 2 hours ago
Select Brussels Airlines flight, departing Tue, Mar 2 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sat, Mar 6, priced at $148 found 2 hours ago
Tue, Mar 2 - Tue, Mar 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$149 Roundtrip, found 1 day ago
$149
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Tue, Mar 2 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Mar 9, priced at $149 found 1 day ago