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

Saturday, September 26th, 2026

3 round-trip options

Returning
Sun, Oct 4, 20268 Day Trip
$649 USD
Returning
Mon, Oct 5, 20269 Day Trip
$622 USD
Returning
Thu, Oct 8, 202612 Day Trip
$626 USD