Montreal (YUL) to Portland (PDX) flight deal in economy from $391

Friday, September 18th, 2026

5 round-trip options

Returning
Thu, Sep 24, 20266 Day Trip
$458 USD
Returning
Fri, Sep 25, 20267 Day Trip
$424 USD
Returning
Wed, Sep 30, 202612 Day Trip
$458 USD
Returning
Thu, Oct 1, 202613 Day Trip
$476 USD
Returning
Fri, Oct 2, 202614 Day Trip
$457 USD