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

Sunday, September 27th, 2026

3 round-trip options

Returning
Mon, Oct 5, 20268 Day Trip
$626 USD
Returning
Tue, Oct 6, 20269 Day Trip
$626 USD
Returning
Fri, Oct 9, 202612 Day Trip
$656 USD