This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $774 fare is the cheapest current round-trip from Montreal (YUL) to LIS on PD flight PD253, departing 2026-07-18 at 14:05 with return on 2026-08-03.

Clicking "Book this flight" opens Kiwi.com with this exact flight pre-filtered — same airline, same dates, same passenger count.