Cheapest one-way BWI–YYZ flights, May

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

One-Way flights

26 May Frontier Airlines
27 May Frontier Airlines
31 May Frontier Airlines
30 May Frontier Airlines
25 May Delta
23 May Frontier Airlines
24 May Frontier Airlines
22 May Frontier Airlines
20 May WestJet
21 May WestJet

Also check the deals for return flights from Baltimore 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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