Cheapest return flights from Washington to Toronto in August from $256

Best time to book flights for Washington (IAD) to Toronto (YTZ) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to Toronto (YTZ) in August 2025 (see full year).

Return flights

23 Aug - 25 Aug Porter Airlines (Canada) Ltd direct
21 Aug - 27 Aug Porter Airlines (Canada) Ltd direct
01 Aug - 05 Aug Porter Airlines (Canada) Ltd direct
10 Aug - 14 Aug Porter Airlines (Canada) Ltd direct
10 Aug - 11 Aug Porter Airlines (Canada) Ltd direct
13 Aug - 20 Aug Porter Airlines (Canada) Ltd direct
21 Aug - 28 Aug Porter Airlines (Canada) Ltd direct
19 Aug - 21 Aug Porter Airlines (Canada) Ltd direct
18 Aug - 22 Aug Porter Airlines (Canada) Ltd direct
07 Aug - 11 Aug Porter Airlines (Canada) Ltd direct
13 Aug - 02 Sep Porter Airlines (Canada) Ltd direct
17 Aug - 02 Sep Porter Airlines (Canada) Ltd direct
23 Aug - 02 Sep Porter Airlines (Canada) Ltd direct
13 Aug - 03 Sep Porter Airlines (Canada) Ltd direct
17 Aug - 03 Sep Porter Airlines (Canada) Ltd direct
17 Aug - 04 Sep Porter Airlines (Canada) Ltd direct
23 Aug - 03 Sep Porter Airlines (Canada) Ltd direct
23 Aug - 04 Sep Porter Airlines (Canada) Ltd direct
12 Aug - 02 Sep Porter Airlines (Canada) Ltd direct
21 Aug - 03 Sep Porter Airlines (Canada) Ltd direct

Also check the deals for one-way flights from Washington to Toronto in August.

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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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