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

Tuesday, September 1st, 2026

3 round-trip options

Returning
Wed, Sep 9, 20268 Day Trip
$615 USD
Returning
Thu, Sep 10, 20269 Day Trip
$615 USD
Returning
Sun, Sep 13, 202612 Day Trip
$622 USD