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

Limited Availability
18% of dates checked are available within 10% of the lowest price

Thursday, October 1st, 2026

5 round-trip options

Returning
Wed, Oct 7, 20266 Day Trip
$689 USD
Returning
Thu, Oct 8, 20267 Day Trip
$777 USD
Returning
Fri, Oct 9, 20268 Day Trip
$732 USD
Returning
Mon, Oct 12, 202611 Day Trip
$697 USD
Returning
Thu, Oct 15, 202614 Day Trip
$697 USD