Cheapest return flights from Ontario to Guatemala City in May from $366

Best time to book flights for Ontario (ONT) to Guatemala City (GUA) flights at AirHint

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

Return flights

27 May - 05 Jun Avianca
29 May - 05 Jun Avianca
29 May - 04 Jun Avianca
09 May - 23 May United
10 May - 24 May United
14 May - 28 May United
27 May - 10 Jun United
28 May - 11 Jun United
20 May - 27 May Avianca
07 May - 21 May United
24 May - 31 May Avianca
27 May - 03 Jun Avianca
29 May - 03 Jun Avianca
15 May - 22 May Avianca
06 May - 20 May United
26 May - 09 Jun United
31 May - 08 Jun Avianca
08 May - 22 May United
13 May - 27 May Avianca
22 May - 01 Jun Avianca

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

Skyscanner

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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