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

Saturday, September 19th, 2026

3 round-trip options

Returning
Sun, Sep 27, 20268 Day Trip
$611 USD
Returning
Mon, Sep 28, 20269 Day Trip
$616 USD
Returning
Thu, Oct 1, 202612 Day Trip
$616 USD