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

Saturday, December 19th, 2026

4 round-trip options

Returning
Fri, Dec 25, 20266 Day Trip
$634 USD
Returning
Sat, Dec 26, 20267 Day Trip
$687 USD
Returning
Thu, Dec 31, 202612 Day Trip
$591 USD
Returning
Fri, Jan 1, 202713 Day Trip
$610 USD