Cheapest return flights from Ontario to Bangkok in May from $930

AirHint found the following cheapest return flights from Ontario (ONT) to Bangkok (BKK) in May 2026 (see full year).

Return flights

04 May - 18 May China Airlines
12 May - 26 May China Airlines
14 May - 27 May China Airlines
30 May - 06 Jun Korean Air
29 May - 18 Jun China Airlines
30 May - 12 Jun China Airlines
26 May - 20 Jun China Airlines

Also check the deals for one-way flights from Ontario to Bangkok in May.

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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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