Cheapest return flights from Boston to Toronto in October from $305

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

Return flights

31 Oct - 03 Nov Air Transat direct
28 Oct - 17 Nov Porter Airlines (Canada) Ltd direct
28 Oct - 12 Nov Porter Airlines (Canada) Ltd direct
30 Oct - 17 Nov Porter Airlines (Canada) Ltd direct
30 Oct - 12 Nov Porter Airlines (Canada) Ltd direct
30 Oct - 19 Nov Porter Airlines (Canada) Ltd direct
28 Oct - 13 Nov Porter Airlines (Canada) Ltd direct
28 Oct - 08 Nov Porter Airlines (Canada) Ltd direct
28 Oct - 16 Nov Porter Airlines (Canada) Ltd direct
28 Oct - 14 Nov Porter Airlines (Canada) Ltd direct
28 Oct - 29 Oct Porter Airlines (Canada) Ltd direct
25 Oct - 29 Oct Porter Airlines (Canada) Ltd direct
26 Oct - 29 Oct Porter Airlines (Canada) Ltd direct
25 Oct - 31 Oct Porter Airlines (Canada) Ltd direct
26 Oct - 31 Oct Porter Airlines (Canada) Ltd direct
24 Oct - 27 Oct Porter Airlines (Canada) Ltd direct
24 Oct - 29 Oct Porter Airlines (Canada) Ltd direct
25 Oct - 28 Oct Porter Airlines (Canada) Ltd direct
28 Oct - 28 Oct Porter Airlines (Canada) Ltd direct
28 Oct - 30 Oct Porter Airlines (Canada) Ltd direct

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

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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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