Cheapest one-way flights from Washington to Toronto in August from $69

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

One-Way flights

08 Aug Porter Airlines (Canada) Ltd direct
22 Aug Porter Airlines (Canada) Ltd direct
07 Aug Porter Airlines (Canada) Ltd direct
16 Aug Porter Airlines (Canada) Ltd direct
03 Aug Porter Airlines (Canada) Ltd direct
21 Aug Porter Airlines (Canada) Ltd direct
17 Aug Porter Airlines (Canada) Ltd direct
18 Aug Porter Airlines (Canada) Ltd direct
09 Aug Porter Airlines (Canada) Ltd direct
12 Aug Porter Airlines (Canada) Ltd direct

Also check the deals for return flights from Washington to Toronto in August.

Skyscanner

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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