This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $685 fare is the cheapest current round-trip from Montreal (YUL) to ZRH on TS flight TS384, departing 2026-09-10 at 23:40 with return on 2026-09-20.

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