AirHint found the following cheapest return flights from Ottawa (YOW) to Cancun (CUN) in December 2025 (see full year).

Return flights

11 Dec - 15 Dec	Air Canada
08 Dec - 09 Dec	Air Canada
18 Dec - 23 Dec	WestJet
24 Dec - 28 Dec	WestJet
19 Dec - 25 Dec	WestJet
22 Dec - 02 Jan	Air Transat
27 Dec - 04 Jan	Air Transat
24 Dec - 04 Jan	Air Transat
27 Dec - 03 Jan	Air Transat
27 Dec - 03 Jan	Air Transat	direct
24 Dec - 04 Jan	Porter Airlines (Canada) Ltd	direct
27 Dec - 04 Jan	Air Transat	direct

Also check the deals for one-way flights from Ottawa to Cancun in December.

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 Ottawa to Cancun in December from 325€

Return flights