AirHint found the following cheapest return flights from Oakland (OAK) to Toronto (YYZ) in August 2025 (see full year).

Return flights

19 Aug - 22 Aug	Spirit Airlines
07 Aug - 19 Aug	Spirit Airlines
25 Aug - 01 Sep	Spirit Airlines
10 Aug - 17 Aug	Spirit Airlines
15 Aug - 17 Aug	Spirit Airlines
01 Aug - 03 Aug	Spirit Airlines
28 Aug - 09 Sep	Alaska Airlines

Also check the deals for one-way flights from Oakland to Toronto 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 Oakland to Toronto in August from $238

Return flights