Madrid (MAD) to Boston (BOS) flight deal in economy from $520
$725 USD
-28%$520 USD
Verified 1 day agoAugust 2026
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Rare Availability
8% of dates checked are available within 10% of the lowest price
Monday, August 17th, 2026
4 round-trip options
Returning
Sat, Aug 22, 2026•5 Day Trip
$1,116 USD
Returning
Sun, Aug 23, 2026•6 Day Trip
$816 USD
Returning
Sat, Aug 29, 2026•12 Day Trip
$772 USD
Returning
Mon, Aug 31, 2026•14 Day Trip
$757 USD