Cheapest return flights from Boston to Toronto in October from $485

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

AirHint found the following cheapest return flights from Boston (BOS) to Toronto (YYZ) in October 2025 (see full year).

Return flights

03 Oct - 05 Oct WestJet
03 Oct - 06 Oct WestJet
31 Oct - 11 Nov Porter Airlines (Canada) Ltd
31 Oct - 21 Nov Porter Airlines (Canada) Ltd
31 Oct - 13 Nov Porter Airlines (Canada) Ltd
31 Oct - 20 Nov Porter Airlines (Canada) Ltd
31 Oct - 18 Nov Porter Airlines (Canada) Ltd
24 Oct - 27 Oct Delta
24 Oct - 27 Oct Air Canada direct
03 Oct - 05 Oct United direct

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

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