Madrid (MAD) to Boston (BOS) flight deal in economy from $520
$725 USD
-28%$520 USD
Verified 1 day agoAugust 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Rare Availability
8% of dates checked are available within 10% of the lowest price
Tuesday, August 18th, 2026
4 round-trip options
Returning
Sun, Aug 23, 2026•5 Day Trip
$733 USD
Returning
Mon, Aug 24, 2026•6 Day Trip
$717 USD
Returning
Sun, Aug 30, 2026•12 Day Trip
$689 USD
Returning
Tue, Sep 1, 2026•14 Day Trip
$682 USD