This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $406 fare is the cheapest current round-trip from Montreal (YUL) to MID on Aeromexico flight AM681, departing 2026-09-05 at 11:01 with return on 2026-09-18.

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