AirHint found the following cheapest return flights from Ontario (ONT) to Osaka (KIX) in December 2025 (see full year).

Return flights

03 Dec - 18 Dec	Alaska Airlines
29 Dec - 28 Jan	China Airlines
29 Dec - 26 Jan	STARLUX Airlines
02 Dec - 17 Dec	China Airlines
27 Dec - 26 Jan	STARLUX Airlines
26 Dec - 26 Jan	STARLUX Airlines
28 Dec - 26 Jan	China Airlines
04 Dec - 18 Dec	China Airlines
05 Dec - 21 Dec	China Airlines
25 Dec - 26 Jan	China Airlines
29 Dec - 07 Jan	STARLUX Airlines
23 Dec - 27 Dec	China Airlines
15 Dec - 29 Dec	China Airlines
18 Dec - 24 Dec	China Airlines
29 Dec - 05 Jan	China Airlines
15 Dec - 12 Jan	China Airlines
18 Dec - 11 Jan	China Airlines
19 Dec - 30 Dec	China Airlines

Also check the deals for one-way flights from Ontario to Osaka in December.

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.

Book a cheap hotel in Osaka

Cheap car rent in Osaka

Cheapest return flights from Ontario to Osaka in December from $962

Return flights