Montreal (YUL) to Porto (OPO) flight deal in economy from $535

Thursday, August 6th, 2026

7 round-trip options

Returning
Tue, Aug 11, 20265 Day Trip
$682 USD
Returning
Wed, Aug 12, 20266 Day Trip
$682 USD
Returning
Thu, Aug 13, 20267 Day Trip
$762 USD
Returning
Fri, Aug 14, 20268 Day Trip
$711 USD
Returning
Sat, Aug 15, 20269 Day Trip
$827 USD
Returning
Tue, Aug 18, 202612 Day Trip
$696 USD
Returning
Wed, Aug 19, 202613 Day Trip
$653 USD