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

Friday, October 23rd, 2026

3 round-trip options

Returning
Sat, Oct 31, 20268 Day Trip
$639 USD
Returning
Sun, Nov 1, 20269 Day Trip
$649 USD
Returning
Wed, Nov 4, 202612 Day Trip
$622 USD