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

Return flights

02 Dec - 09 Dec	United
09 Dec - 16 Dec	United
08 Dec - 15 Dec	WestJet
01 Dec - 08 Dec	WestJet
31 Dec - 08 Jan	Air Transat
30 Dec - 07 Jan	Air Transat
02 Dec - 10 Dec	WestJet
04 Dec - 09 Dec	WestJet
31 Dec - 07 Jan	Air Transat
07 Dec - 09 Dec	WestJet
12 Dec - 18 Dec	United
05 Dec - 08 Dec	WestJet
01 Dec - 06 Dec	Air Canada
29 Dec - 07 Jan	Air Transat
24 Dec - 07 Jan	WestJet
30 Dec - 06 Jan	WestJet
25 Dec - 14 Jan	WestJet
29 Dec - 06 Jan	WestJet
31 Dec - 05 Jan	Air Transat
29 Dec - 05 Jan	Air Transat

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 245€

Return flights