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

Monday, August 24th, 2026

4 round-trip options

Returning
Sat, Aug 29, 20265 Day Trip
$692 USD
Returning
Sun, Aug 30, 20266 Day Trip
$674 USD
Returning
Sat, Sep 5, 202612 Day Trip
$679 USD
Returning
Mon, Sep 7, 202614 Day Trip
$662 USD