AirHint found the following cheapest return flights from Ontario (ONT) to Manila (MNL) in September 2025 (see full year).

Return flights

08 Sep - 22 Sep	Korean Air
03 Sep - 21 Sep	Korean Air
01 Sep - 10 Sep	Korean Air
22 Sep - 29 Sep	Korean Air
03 Sep - 11 Sep	Korean Air
02 Sep - 11 Sep	Korean Air
18 Sep - 28 Sep	Korean Air
24 Sep - 15 Oct	Korean Air
25 Sep - 06 Oct	Korean Air
01 Sep - 08 Sep	Korean Air
08 Sep - 29 Sep	Korean Air
29 Sep - 22 Oct	Korean Air
08 Sep - 28 Sep	Korean Air
17 Sep - 28 Oct	Korean Air
19 Sep - 05 Oct	China Airlines
17 Sep - 23 Oct	Korean Air
24 Sep - 14 Oct	Korean Air
25 Sep - 15 Oct	Korean Air
16 Sep - 10 Oct	China Airlines
21 Sep - 19 Oct	China Airlines

Also check the deals for one-way flights from Ontario to Manila in September.

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 Manila in September from $696

Return flights