AirHint found the following cheapest return flights from Ottawa (YOW) to Bangkok (BKK) in August 2026 (see full year).

Return flights

25 Aug - 15 Sep	ANA
25 Aug - 08 Sep	ANA
25 Aug - 28 Sep	ANA
25 Aug - 01 Sep	ANA
31 Aug - 07 Sep	Air Canada
25 Aug - 11 Sep	ANA
25 Aug - 17 Sep	Porter Airlines (Canada) Ltd
11 Aug - 18 Aug	ANA
25 Aug - 22 Sep	ANA
11 Aug - 25 Aug	WestJet

Also check the deals for one-way flights from Ottawa to Bangkok in August.

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 Ottawa to Bangkok in August from $936

Return flights