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 $123 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, Aug 25 - Tue, Sep 1
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$123 Roundtrip, found 5 hours ago
$123
Roundtrip
found 5 hours ago
Select Brussels Airlines flight, departing Tue, Aug 25 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Sep 1, priced at $123 found 5 hours ago
Thu, Nov 12 - Wed, Nov 18
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$132 Roundtrip, found 3 days ago
$132
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Thu, Nov 12 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Nov 18, priced at $132 found 3 days ago
Tue, Aug 25 - Tue, Sep 1
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$135 Roundtrip, found 5 hours ago
$135
Roundtrip
found 5 hours ago
Select Brussels Airlines flight, departing Tue, Aug 25 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Sep 1, priced at $135 found 5 hours ago
Mon, Aug 31 - Tue, Sep 8
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$140 Roundtrip, found 1 day ago
$140
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Mon, Aug 31 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Sep 8, priced at $140 found 1 day ago
Tue, Aug 25 - Tue, Sep 1
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$141 Roundtrip, found 5 hours ago
$141
Roundtrip
found 5 hours ago
Select Brussels Airlines flight, departing Tue, Aug 25 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Sep 1, priced at $141 found 5 hours ago
Thu, Nov 12 - Wed, Nov 18
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$149 Roundtrip, found 3 days ago
$149
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Thu, Nov 12 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Nov 18, priced at $149 found 3 days ago
Thu, Nov 12 - Wed, Nov 18
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$149 Roundtrip, found 3 days ago
$149
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Thu, Nov 12 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Nov 18, priced at $149 found 3 days ago
Mon, Aug 31 - Tue, Sep 8
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$155 Roundtrip, found 1 day ago
$155
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Mon, Aug 31 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Sep 8, priced at $155 found 1 day ago
Tue, Aug 25 - Tue, Sep 1
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$161 Roundtrip, found 5 hours ago
$161
Roundtrip
found 5 hours ago
Select Brussels Airlines flight, departing Tue, Aug 25 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Sep 1, priced at $161 found 5 hours ago
Thu, Nov 12 - Wed, Nov 18
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$166 Roundtrip, found 3 days ago
$166
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Thu, Nov 12 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Nov 18, priced at $166 found 3 days ago