Cheapest one-way flights from Washington to Toronto in May from 191€

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

21 May Porter Airlines (Canada) Ltd direct
03 May Porter Airlines (Canada) Ltd direct
16 May Porter Airlines (Canada) Ltd direct
15 May Porter Airlines (Canada) Ltd direct
28 May Porter Airlines (Canada) Ltd direct
19 May Porter Airlines (Canada) Ltd direct
04 May Porter Airlines (Canada) Ltd direct
27 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.

Book a cheap hotel in Toronto

Cheap car rent in Toronto