Montreal (YUL) to Porto (OPO) flight deal in economy from $529

Fair Availability
37% of dates checked are available within 10% of the lowest price

Sunday, October 18th, 2026

2 round-trip options

Returning
Sat, Oct 24, 20266 Day Trip
$720 USD
Returning
Sat, Oct 31, 202613 Day Trip
$776 USD