Every Mexico City–Montreal fare we track, measured against the route's typical price whenever there is enough cached history to build one. Subscribe in any RSS reader for free single-route price alerts — no account, no email needed.https://flight.dealsen-ushttps://flight.deals/flights/mexico-city-to-montreal/#2026-12-19-2027-01-03-UAhttps://flight.deals/flights/mexico-city-to-montreal/#2026-12-19-2027-01-03-UAMEX → YUL round-trip on United, 2026-12-19 to 2027-01-03 (15 nights). Cached fare $659. Not enough cached history on this route yet to say what it usually costs.Tue, 01 Sep 2026 12:09:07 GMT