Cheapest return flights from Boston to Toronto in June from $438

AirHint found the following cheapest return flights from Boston (BOS) to Toronto (YYZ) in June 2026 (see full year).

Return flights

24 Jun - 01 Jul Sun Country Airlines
21 Jun - 28 Jun Air Canada direct
24 Jun - 01 Jul Air Canada direct
20 Jun - 21 Jun Air Canada direct
17 Jun - 21 Jun Air Canada direct
23 Jun - 23 Jun Air Canada direct
16 Jun - 19 Jun Air Canada direct
15 Jun - 18 Jun Air Canada direct
29 Jun - 01 Jul Air Canada direct

Also check the deals for one-way flights from Boston to Toronto in June.

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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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