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

Thursday, September 24th, 2026

3 round-trip options

Returning
Fri, Oct 2, 20268 Day Trip
$616 USD
Returning
Sat, Oct 3, 20269 Day Trip
$616 USD
Returning
Tue, Oct 6, 202612 Day Trip
$599 USD