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 $83

The cheapest prices found with in the last 7 days for return flights were $136 and $83 for one-way flights to Adolfo Suárez Madrid-Barajas for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Feb 2 - Sat, Feb 6
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$136 Roundtrip, found 2 days ago
$136
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Tue, Feb 2 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sat, Feb 6, priced at $136 found 2 days ago
Fri, Feb 26 - Tue, Mar 2
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$147 Roundtrip, found 2 days ago
$147
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Fri, Feb 26 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Mar 2, priced at $147 found 2 days ago
Thu, Dec 3 - Mon, Dec 7
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, Dec 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Mon, Dec 7, priced at $152 found 4 days ago
Fri, Feb 26 - Tue, Mar 2
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$160 Roundtrip, found 2 days ago
$160
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Fri, Feb 26 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Mar 2, priced at $160 found 2 days ago
Fri, Feb 26 - Tue, Mar 2
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$162 Roundtrip, found 2 days ago
$162
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Fri, Feb 26 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Mar 2, priced at $162 found 2 days ago
Mon, Jun 7 - Sun, Jun 13
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$165 Roundtrip, found 15 hours ago
$165
Roundtrip
found 15 hours ago
Select Brussels Airlines flight, departing Mon, Jun 7 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sun, Jun 13, priced at $165 found 15 hours ago
Mon, Jun 7 - Sun, Jun 13
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$172 Roundtrip, found 15 hours ago
$172
Roundtrip
found 15 hours ago
Select Brussels Airlines flight, departing Mon, Jun 7 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sun, Jun 13, priced at $172 found 15 hours ago
Thu, Dec 3 - Mon, Dec 7
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$173 Roundtrip, found 4 days ago
$173
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Thu, Dec 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Mon, Dec 7, priced at $173 found 4 days ago
Fri, Feb 26 - Tue, Mar 2
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$173 Roundtrip, found 2 days ago
$173
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Fri, Feb 26 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Mar 2, priced at $173 found 2 days ago
Fri, Dec 11 - Fri, Dec 25
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$190 Roundtrip, found 2 hours ago
$190
Roundtrip
found 2 hours ago
Select Brussels Airlines flight, departing Fri, Dec 11 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Fri, Dec 25, priced at $190 found 2 hours ago