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

Thursday, September 10th, 2026

3 round-trip options

Returning
Fri, Sep 18, 20268 Day Trip
$616 USD
Returning
Sat, Sep 19, 20269 Day Trip
$616 USD
Returning
Tue, Sep 22, 202612 Day Trip
$599 USD