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

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Brussels Airlines Flight 3721 Route Deals From $66

The cheapest prices found with in the last 7 days for return flights were $112 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.

Thu, Sep 3 - Wed, Sep 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$112 Roundtrip, found 4 days ago
$112
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Thu, Sep 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Sep 9, priced at $112 found 4 days ago
Thu, Sep 3 - Wed, Sep 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$124 Roundtrip, found 4 days ago
$124
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Thu, Sep 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Sep 9, priced at $124 found 4 days ago
Thu, Sep 3 - Wed, Sep 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$131 Roundtrip, found 4 days ago
$131
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Thu, Sep 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Sep 9, priced at $131 found 4 days ago
Wed, May 27 - Wed, Jun 10
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 Wed, May 27 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Jun 10, priced at $133 found 19 hours ago
Thu, Sep 3 - Wed, Sep 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$138 Roundtrip, found 4 days ago
$138
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Thu, Sep 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Sep 9, priced at $138 found 4 days ago
Thu, Sep 3 - Wed, Sep 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$145 Roundtrip, found 4 days ago
$145
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Thu, Sep 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Sep 9, priced at $145 found 4 days ago
Wed, May 27 - Wed, Jun 10
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$150 Roundtrip, found 19 hours ago
$150
Roundtrip
found 19 hours ago
Select Brussels Airlines flight, departing Wed, May 27 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Jun 10, priced at $150 found 19 hours ago
Thu, Sep 3 - Wed, Sep 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$152 Roundtrip, found 4 days ago
$152
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Thu, Sep 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Sep 9, priced at $152 found 4 days ago
Thu, Sep 3 - Wed, Sep 9
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$155 Roundtrip, found 4 days ago
$155
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Thu, Sep 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Sep 9, priced at $155 found 4 days ago
Wed, May 27 - Wed, Jun 10
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$164 Roundtrip, found 19 hours ago
$164
Roundtrip
found 19 hours ago
Select Brussels Airlines flight, departing Wed, May 27 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Jun 10, priced at $164 found 19 hours ago
Wed, May 27 - Wed, Jun 10
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$168 Roundtrip, found 19 hours ago
$168
Roundtrip
found 19 hours ago
Select Brussels Airlines flight, departing Wed, May 27 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Jun 10, priced at $168 found 19 hours ago