Cheapest one-way flights from Washington to Toronto in May from $196

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

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

One-Way flights

27 May Porter Airlines (Canada) Ltd direct
21 May Porter Airlines (Canada) Ltd direct
04 May Porter Airlines (Canada) Ltd direct
11 May Porter Airlines (Canada) Ltd direct
02 May Porter Airlines (Canada) Ltd direct
16 May Porter Airlines (Canada) Ltd direct
22 May Porter Airlines (Canada) Ltd direct

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

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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