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

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Brussels Airlines Flight 3721 Route Deals From $67

The cheapest prices found with in the last 7 days for return flights were $124 and $67 for one-way flights to Adolfo Suárez Madrid-Barajas for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 2 - Sat, Sep 5
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$124 Roundtrip, found 5 days ago
$124
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Wed, Sep 2 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Sat, Sep 5, priced at $124 found 5 days ago
Mon, Sep 7 - Fri, Sep 11
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$124 Roundtrip, found 3 days ago
$124
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Mon, Sep 7 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Fri, Sep 11, priced at $124 found 3 days ago
Mon, Sep 21 - Wed, Sep 23
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$128 Roundtrip, found 4 days ago
$128
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Mon, Sep 21 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Sep 23, priced at $128 found 4 days ago
Mon, Sep 7 - Fri, Sep 11
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$130 Roundtrip, found 3 days ago
$130
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Mon, Sep 7 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Fri, Sep 11, priced at $130 found 3 days ago
Mon, Oct 5 - Wed, Oct 7
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 Mon, Oct 5 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Wed, Oct 7, priced at $132 found 3 days ago
Wed, Sep 16 - Tue, Sep 22
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$133 Roundtrip, found 2 hours ago
$133
Roundtrip
found 2 hours ago
Select Brussels Airlines flight, departing Wed, Sep 16 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Sep 22, priced at $133 found 2 hours ago
Wed, Sep 9 - Fri, Sep 11
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 Wed, Sep 9 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Fri, Sep 11, priced at $136 found 2 days ago
Wed, Sep 2 - Tue, Sep 8
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$136 Roundtrip, found 4 days ago
$136
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Wed, Sep 2 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Tue, Sep 8, priced at $136 found 4 days ago
Thu, Sep 3 - Mon, Sep 7
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$138 Roundtrip, found 2 days ago
$138
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Thu, Sep 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Mon, Sep 7, priced at $138 found 2 days ago
Thu, Sep 3 - Mon, Sep 7
BRU
Brussels - National
MAD
Adolfo Suárez Madrid-Barajas
$143 Roundtrip, found 2 days ago
$143
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Thu, Sep 3 from Brussels - National to Adolfo Suárez Madrid-Barajas, returning Mon, Sep 7, priced at $143 found 2 days ago