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

Sunday, August 30th, 2026

7 round-trip options

Returning
Fri, Sep 4, 20265 Day Trip
$704 USD
Returning
Sat, Sep 5, 20266 Day Trip
$770 USD
Returning
Sun, Sep 6, 20267 Day Trip
$733 USD
Returning
Mon, Sep 7, 20268 Day Trip
$842 USD
Returning
Tue, Sep 8, 20269 Day Trip
$661 USD
Returning
Fri, Sep 11, 202612 Day Trip
$586 USD
Returning
Sat, Sep 12, 202613 Day Trip
$609 USD