Cheapest return flights from Ontario to Bangkok in May from $704

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

Return flights

13 May - 16 Jun China Airlines
03 May - 15 May China Airlines
01 May - 14 May China Airlines
01 May - 15 May China Airlines
02 May - 15 May China Airlines
01 May - 13 May China Airlines
02 May - 13 May China Airlines
02 May - 14 May China Airlines
02 May - 30 May China Airlines
07 May - 21 May China Airlines
13 May - 19 May China Airlines
04 May - 19 Jun China Airlines
04 May - 16 Jun China Airlines
04 May - 17 Jun China Airlines
04 May - 18 Jun China Airlines
19 May - 04 Jun China Airlines
28 May - 02 Jun China Airlines
31 May - 28 Jun China Airlines
23 May - 09 Jun China Airlines
25 May - 24 Jun China Airlines

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

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