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

Return flights

23 Oct - 31 Oct	Delta
06 Oct - 13 Oct	Delta
01 Oct - 30 Oct	Delta
15 Oct - 22 Oct	Delta
20 Oct - 12 Nov	Delta
19 Oct - 18 Nov	Delta
19 Oct - 13 Nov	Delta
19 Oct - 12 Nov	Delta
06 Oct - 03 Nov	Delta
19 Oct - 19 Nov	Delta
20 Oct - 20 Nov	Delta
20 Oct - 19 Nov	Delta
28 Oct - 11 Nov	Delta
29 Oct - 11 Nov	Delta
15 Oct - 25 Oct	STARLUX Airlines	direct
21 Oct - 27 Oct	Korean Air
06 Oct - 13 Oct	STARLUX Airlines	direct
08 Oct - 22 Oct	STARLUX Airlines	direct
15 Oct - 22 Oct	STARLUX Airlines	direct
21 Oct - 27 Oct	China Airlines	direct

Also check the deals for one-way flights from Ontario to Taipei 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 Taipei in October from $753

Return flights