Cheapest one-way flights from Boston to Toronto in June from $129

Best time to book flights for Boston (BOS) to Toronto (YYZ) flights at AirHint

AirHint found the following cheapest one-way flights from Boston (BOS) to Toronto (YYZ) in June 2025 (see full year).

One-Way flights

06 Jun Spirit Airlines
19 Jun Spirit Airlines
04 Jun Spirit Airlines
14 Jun Spirit Airlines
29 Jun Spirit Airlines
15 Jun Air Canada direct
16 Jun Air Canada direct
26 Jun Spirit Airlines
14 Jun Air Canada direct
13 Jun Air Canada direct

Also check the deals for return flights from Boston to Toronto in June.

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.

Book a cheap hotel in Toronto

Cheap car rent in Toronto