Brussels Airlines Flight 3731 Deals & Information (2025/2026)

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Brussels Airlines Flight 3731 Route Deals From $88

The cheapest prices found with in the last 7 days for return flights were $137 and $88 for one-way flights to Adolfo Suárez Madrid-Barajas for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Feb 19 - Mon, Feb 23
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 Thu, Feb 19 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Mon, Feb 23, priced at $137 found 4 days ago
Sun, Nov 9 - Fri, Nov 14
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 Sun, Nov 9 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Fri, Nov 14, priced at $158 found 3 days ago
Tue, Nov 4 - Fri, Nov 7
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$165 Roundtrip, found 7 hours ago
$165
Roundtrip
found 7 hours ago
Select Brussels Airlines flight, departing Tue, Nov 4 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Fri, Nov 7, priced at $165 found 7 hours ago