This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $741 fare is the cheapest current round-trip from Montreal (YUL) to IST on WestJet flight WS817, departing 2026-08-18 at 17:45 with return on 2026-09-08.

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