AirHint found the following cheapest return flights from Ontario (ONT) to Montego Bay (MBJ) in October 2025 (see full year).

Return flights

21 Oct - 29 Oct	American Airlines
21 Oct - 28 Oct	Southwest Airlines
30 Oct - 05 Nov	Southwest Airlines
21 Oct - 27 Oct	Southwest Airlines
24 Oct - 28 Oct	Southwest Airlines
23 Oct - 28 Oct	Southwest Airlines
10 Oct - 28 Oct	Southwest Airlines
24 Oct - 27 Oct	Southwest Airlines
23 Oct - 27 Oct	Southwest Airlines
30 Oct - 09 Nov	Southwest Airlines
12 Oct - 26 Oct	Southwest Airlines
22 Oct - 28 Oct	Southwest Airlines

Also check the deals for one-way flights from Ontario to Montego Bay in October.

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 Montego Bay in October from $608

Return flights