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

Return flights

05 Dec - 11 Dec	United
05 Dec - 13 Dec	Air Canada
01 Dec - 07 Dec	Air Canada
22 Dec - 31 Dec	WestJet	direct
17 Dec - 05 Jan	WestJet	direct
18 Dec - 31 Dec	Porter Airlines (Canada) Ltd
24 Dec - 07 Jan	WestJet	direct
20 Dec - 04 Jan	WestJet
29 Dec - 06 Jan	Air Transat
27 Dec - 31 Jan	WestJet
19 Dec - 24 Dec	Porter Airlines (Canada) Ltd
25 Dec - 28 Dec	Air Transat
24 Dec - 28 Dec	Air Transat
25 Dec - 01 Jan	Air Transat
21 Dec - 28 Dec	Porter Airlines (Canada) Ltd
29 Dec - 03 Jan	Air Transat
27 Dec - 04 Jan	WestJet

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 332€

Return flights