Cheapest return flights from Ontario to Taipei in September from $642

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

Return flights

24 Sep - 28 Sep Korean Air
24 Sep - 29 Oct Korean Air
22 Sep - 29 Sep Delta
22 Sep - 31 Oct Delta
26 Sep - 12 Oct Delta
24 Sep - 28 Sep China Airlines direct
21 Sep - 28 Sep China Airlines direct
18 Sep - 22 Sep China Airlines direct
22 Sep - 29 Sep China Airlines direct
28 Sep - 14 Oct China Airlines direct
28 Sep - 12 Oct China Airlines direct
27 Sep - 05 Oct China Airlines direct
22 Sep - 26 Sep China Airlines direct
20 Sep - 27 Sep China Airlines direct
30 Sep - 03 Oct China Airlines direct
22 Sep - 31 Oct China Airlines direct
28 Sep - 09 Oct China Airlines direct
29 Sep - 20 Oct China Airlines direct
20 Sep - 22 Sep China Airlines direct
23 Sep - 30 Sep China Airlines direct

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

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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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