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
Monday, August 31st, 2026
4 round-trip options
Returning
Sat, Sep 5, 2026•5 Day Trip
$635 USD
Returning
Sun, Sep 6, 2026•6 Day Trip
$617 USD
Returning
Sat, Sep 12, 2026•12 Day Trip
$622 USD
Returning
Mon, Sep 14, 2026•14 Day Trip
$609 USD