Cheapest one-way flights from Washington to Toronto in May from $182

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

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

One-Way flights

13 May WestJet
15 May WestJet
27 May WestJet
06 May WestJet
13 May Air Canada direct
21 May Air Canada direct
22 May Air Canada direct
15 May Air Canada 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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