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

Friday, September 11th, 2026

3 round-trip options

Returning
Sat, Sep 19, 20268 Day Trip
$633 USD
Returning
Sun, Sep 20, 20269 Day Trip
$633 USD
Returning
Wed, Sep 23, 202612 Day Trip
$616 USD