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

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Brussels Airlines Flight 3721 Route Deals From $66

The cheapest prices found with in the last 7 days for return flights were $122 and $66 for one-way flights to Adolfo Suárez Madrid-Barajas for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 5 - Tue, May 19
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$122 Roundtrip, found 19 hours ago
$122
Roundtrip
found 19 hours ago
Select Brussels Airlines flight, departing Tue, May 5 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, May 19, priced at $122 found 19 hours ago
Tue, May 5 - Tue, May 19
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$133 Roundtrip, found 19 hours ago
$133
Roundtrip
found 19 hours ago
Select Brussels Airlines flight, departing Tue, May 5 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, May 19, priced at $133 found 19 hours ago
Tue, May 5 - Thu, May 7
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$138 Roundtrip, found 5 days ago
$138
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Tue, May 5 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Thu, May 7, priced at $138 found 5 days ago
Tue, May 5 - Tue, May 19
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$140 Roundtrip, found 19 hours ago
$140
Roundtrip
found 19 hours ago
Select Brussels Airlines flight, departing Tue, May 5 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, May 19, priced at $140 found 19 hours ago
Tue, May 19 - Sat, May 23
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$141 Roundtrip, found 3 days ago
$141
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Tue, May 19 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sat, May 23, priced at $141 found 3 days ago
Tue, May 19 - Sat, May 23
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$144 Roundtrip, found 3 days ago
$144
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Tue, May 19 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sat, May 23, priced at $144 found 3 days ago
Wed, May 27 - Tue, Jun 2
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$150 Roundtrip, found 4 days ago
$150
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Wed, May 27 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Jun 2, priced at $150 found 4 days ago
Tue, May 5 - Tue, May 19
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$152 Roundtrip, found 19 hours ago
$152
Roundtrip
found 19 hours ago
Select Brussels Airlines flight, departing Tue, May 5 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, May 19, priced at $152 found 19 hours ago
Tue, May 19 - Sat, May 23
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$153 Roundtrip, found 3 days ago
$153
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Tue, May 19 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sat, May 23, priced at $153 found 3 days ago
Wed, Sep 23 - Sun, Sep 27
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$155 Roundtrip, found 2 days ago
$155
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Wed, Sep 23 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sun, Sep 27, priced at $155 found 2 days ago
Fri, Nov 13 - Sun, Nov 15
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$157 Roundtrip, found 3 days ago
$157
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Fri, Nov 13 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sun, Nov 15, priced at $157 found 3 days ago
Tue, May 19 - Sat, May 23
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$158 Roundtrip, found 3 days ago
$158
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Tue, May 19 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sat, May 23, priced at $158 found 3 days ago
Thu, Apr 16 - Tue, Apr 21
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$160 Roundtrip, found 5 days ago
$160
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Thu, Apr 16 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Apr 21, priced at $160 found 5 days ago
Tue, May 5 - Thu, May 7
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$162 Roundtrip, found 5 days ago
$162
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Tue, May 5 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Thu, May 7, priced at $162 found 5 days ago