Cheapest return flights from Toronto to Boston in May from $355

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

Return flights

18 May - 25 May Porter Airlines (Canada) Ltd
07 May - 17 May Porter Airlines (Canada) Ltd direct
15 May - 18 May Porter Airlines (Canada) Ltd
15 May - 18 May Porter Airlines (Canada) Ltd direct
18 May - 25 May Porter Airlines (Canada) Ltd direct
30 May - 06 Jun Porter Airlines (Canada) Ltd direct
13 May - 17 May Porter Airlines (Canada) Ltd direct
24 May - 06 Jun Porter Airlines (Canada) Ltd direct
29 May - 06 Jun Porter Airlines (Canada) Ltd direct
24 May - 24 May Porter Airlines (Canada) Ltd direct
13 May - 24 May Porter Airlines (Canada) Ltd direct
07 May - 24 May Porter Airlines (Canada) Ltd direct
24 May - 10 Jun Porter Airlines (Canada) Ltd direct
24 May - 12 Jun Porter Airlines (Canada) Ltd direct
30 May - 10 Jun Porter Airlines (Canada) Ltd direct
30 May - 12 Jun Porter Airlines (Canada) Ltd direct
29 May - 10 Jun Porter Airlines (Canada) Ltd direct
29 May - 12 Jun Porter Airlines (Canada) Ltd direct
03 May - 24 May Porter Airlines (Canada) Ltd direct
30 May - 18 Jun Porter Airlines (Canada) Ltd direct

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

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