Cheapest return flights from Ontario to Guatemala City in April from $374

AirHint found the following cheapest return flights from Ontario (ONT) to Guatemala City (GUA) in April 2026 (see full year).

Return flights

11 Apr - 13 Apr Frontier Airlines
28 Apr - 07 May Avianca
28 Apr - 12 May Avianca
11 Apr - 30 Apr Avianca
02 Apr - 10 Apr Frontier Airlines
21 Apr - 28 Apr Avianca
11 Apr - 18 Apr Avianca
07 Apr - 14 Apr Avianca
16 Apr - 02 May Avianca
16 Apr - 21 Apr Avianca
04 Apr - 13 Apr Frontier Airlines
02 Apr - 09 Apr Frontier Airlines
02 Apr - 11 Apr Frontier Airlines

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

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