AirHint found the following cheapest return flights from Montreal (YUL) to Cancun (CUN) in July 2025 (see full year).

Return flights

11 Jul - 15 Jul	United
09 Jul - 15 Jul	United
15 Jul - 22 Jul	United
11 Jul - 22 Jul	United
16 Jul - 22 Jul	United
09 Jul - 22 Jul	United
08 Jul - 22 Jul	United
09 Jul - 12 Jul	United
07 Jul - 09 Jul	United
16 Jul - 23 Jul	American Airlines
28 Jul - 07 Aug	Air Transat
29 Jul - 16 Aug	United
29 Jul - 05 Aug	United
29 Jul - 06 Aug	United
16 Jul - 05 Aug	United
30 Jul - 06 Aug	Air Canada
11 Jul - 07 Aug	WestJet
31 Jul - 06 Aug	Air Canada
29 Jul - 01 Aug	Air Canada
30 Jul - 01 Aug	Air Canada

Also check the deals for one-way flights from Montreal to Cancun in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Montreal to Cancun in July from 295€

Return flights