Cheapest one-way flights from Washington to Toronto in May from $112

AirHint found the following cheapest one-way flights from Washington (DCA) to Toronto (YYZ) in May 2026 (see full year).

One-Way flights

01 May Air Canada direct
02 May Delta
03 May Delta
20 May Delta
25 May Air Canada direct
02 May Air Canada direct
03 May Air Canada direct
20 May Air Canada direct

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

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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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