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

Tuesday, September 29th, 2026

3 round-trip options

Returning
Wed, Oct 7, 20268 Day Trip
$599 USD
Returning
Thu, Oct 8, 20269 Day Trip
$599 USD
Returning
Sun, Oct 11, 202612 Day Trip
$616 USD