AirHint found the following cheapest return flights from Ontario (ONT) to Guatemala City (GUA) in December 2025 (see full year).

Return flights

31 Dec - 14 Jan	American Airlines
31 Dec - 17 Jan	American Airlines
31 Dec - 15 Jan	American Airlines
30 Dec - 15 Jan	American Airlines
30 Dec - 29 Jan	Avianca
30 Dec - 24 Jan	Avianca
04 Dec - 14 Dec	Avianca
28 Dec - 20 Jan	Avianca
28 Dec - 29 Jan	Avianca
01 Dec - 07 Dec	Volaris
04 Dec - 10 Dec	Avianca
28 Dec - 17 Jan	Avianca
04 Dec - 20 Dec	Avianca
30 Dec - 21 Jan	Avianca
04 Dec - 12 Dec	Avianca
11 Dec - 16 Dec	Avianca
02 Dec - 23 Dec	Avianca
11 Dec - 18 Dec	Avianca
13 Dec - 23 Dec	Avianca
14 Dec - 23 Dec	Avianca

Also check the deals for one-way flights from Ontario to Guatemala City 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 Ontario to Guatemala City in December from $216

Return flights