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

Tuesday, September 8th, 2026

3 round-trip options

Returning
Wed, Sep 16, 20268 Day Trip
$599 USD
Returning
Thu, Sep 17, 20269 Day Trip
$599 USD
Returning
Sun, Sep 20, 202612 Day Trip
$616 USD