Lisbon (LIS) to Montreal (YUL) flight deal in economy from $525

Sunday, September 6th, 2026

4 round-trip options

Returning
Sat, Sep 12, 20266 Day Trip
$635 USD
Returning
Sun, Sep 13, 20267 Day Trip
$579 USD
Returning
Thu, Sep 17, 202611 Day Trip
$609 USD
Returning
Fri, Sep 18, 202612 Day Trip
$610 USD