Cheapest one-way flights from Washington to Toronto in April from $79

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

One-Way flights

20 Apr Air Canada direct
03 Apr Air Canada direct
28 Apr Air Canada direct
19 Apr Frontier Airlines
17 Apr Delta
08 Apr Delta
14 Apr Delta
07 Apr Delta
24 Apr Delta
08 Apr Air Canada direct

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

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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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