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

Sunday, September 20th, 2026

4 round-trip options

Returning
Sat, Sep 26, 20266 Day Trip
$634 USD
Returning
Sun, Sep 27, 20267 Day Trip
$614 USD
Returning
Thu, Oct 1, 202611 Day Trip
$641 USD
Returning
Fri, Oct 2, 202612 Day Trip
$644 USD