AirHint found the following cheapest return flights from Toronto (YYZ) to Cancun (CUN) in August 2025 (see full year).

Return flights

06 Aug - 10 Aug	Avianca
08 Aug - 10 Aug	Avianca
06 Aug - 07 Aug	Avianca
22 Aug - 26 Aug	WestJet	direct
19 Aug - 27 Aug	Flair Airlines	direct
30 Aug - 11 Sep	WestJet	direct
07 Aug - 11 Aug	Avianca
28 Aug - 04 Sep	Air Canada
26 Aug - 04 Sep	Air Canada
23 Aug - 28 Aug	Flair Airlines
19 Aug - 26 Aug	Flair Airlines
19 Aug - 28 Aug	Flair Airlines
06 Aug - 11 Aug	Avianca
30 Aug - 05 Sep	WestJet
26 Aug - 02 Sep	Flair Airlines
30 Aug - 04 Sep	WestJet	direct
30 Aug - 06 Sep	WestJet	direct
30 Aug - 05 Sep	WestJet	direct
22 Aug - 07 Sep	Arajet
15 Aug - 19 Sep	Arajet

Also check the deals for one-way flights from Toronto to Cancun in August.

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 Toronto to Cancun in August from 111€

Return flights