Madrid (MAD) to Boston (BOS) flight deal in economy from $520

Saturday, September 12th, 2026

3 round-trip options

Returning
Sun, Sep 20, 20268 Day Trip
$633 USD
Returning
Mon, Sep 21, 20269 Day Trip
$616 USD
Returning
Thu, Sep 24, 202612 Day Trip
$616 USD