Madrid (MAD) to Boston (BOS) flight deal in economy from $520
$725 USD
-28%$520 USD
Verified 1 day agoDecember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Rare Availability
8% of dates checked are available within 10% of the lowest price
Thursday, December 17th, 2026
2 round-trip options
Returning
Tue, Dec 22, 2026•5 Day Trip
$686 USD
Returning
Fri, Dec 25, 2026•8 Day Trip
$700 USD



