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

Monday, September 14th, 2026

3 round-trip options

Returning
Tue, Sep 22, 20268 Day Trip
$609 USD
Returning
Wed, Sep 23, 20269 Day Trip
$609 USD
Returning
Sat, Sep 26, 202612 Day Trip
$626 USD