Cheapest return flights from Ontario to Guatemala City in October from $489

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

Return flights

27 Oct - 03 Nov American Airlines
30 Oct - 06 Nov Avianca
25 Oct - 04 Nov Avianca
28 Oct - 05 Nov Avianca
30 Oct - 04 Nov Avianca
30 Oct - 05 Nov Avianca
25 Oct - 03 Nov Avianca
23 Oct - 28 Oct Avianca
28 Oct - 17 Nov Avianca
30 Oct - 03 Nov Avianca
30 Oct - 18 Nov Avianca
23 Oct - 27 Oct Avianca

Also check the deals for one-way flights from Ontario to Guatemala City in October.

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