AirHint found the following cheapest return flights from Ontario (ONT) to Bangkok (BKK) in July 2025 (see full year).

Return flights

29 Jul - 13 Aug	Korean Air
22 Jul - 29 Jul	Korean Air
24 Jul - 14 Aug	Korean Air
31 Jul - 06 Aug	Korean Air
29 Jul - 15 Aug	Korean Air
28 Jul - 31 Aug	Korean Air
28 Jul - 15 Aug	Korean Air
24 Jul - 31 Jul	Korean Air
29 Jul - 08 Aug	Korean Air
08 Jul - 14 Jul	Korean Air
15 Jul - 22 Jul	Korean Air
10 Jul - 28 Jul	Korean Air
10 Jul - 16 Jul	Korean Air
30 Jul - 09 Aug	Korean Air
27 Jul - 09 Aug	Korean Air
27 Jul - 08 Aug	Korean Air
08 Jul - 22 Jul	Korean Air
15 Jul - 30 Jul	Korean Air
15 Jul - 25 Jul	Korean Air
08 Jul - 15 Jul	Korean Air

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

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 Bangkok in July from $782

Return flights