Cheapest return flights from Washington to Toronto in December from 397€

AirHint found the following cheapest return flights from Washington (IAD) to Toronto (YTZ) in December 2025 (see full year).

Return flights

31 Dec - 07 Jan Frontier Airlines
31 Dec - 04 Jan Frontier Airlines
31 Dec - 16 Jan Porter Airlines (Canada) Ltd direct
31 Dec - 08 Jan Porter Airlines (Canada) Ltd direct
31 Dec - 21 Jan Porter Airlines (Canada) Ltd direct
31 Dec - 09 Jan Porter Airlines (Canada) Ltd direct
31 Dec - 19 Jan Porter Airlines (Canada) Ltd direct
31 Dec - 15 Jan Porter Airlines (Canada) Ltd direct
31 Dec - 12 Jan Porter Airlines (Canada) Ltd direct
29 Dec - 16 Jan Porter Airlines (Canada) Ltd direct
27 Dec - 29 Dec Porter Airlines (Canada) Ltd direct
29 Dec - 30 Dec Porter Airlines (Canada) Ltd direct
27 Dec - 28 Dec Porter Airlines (Canada) Ltd direct
28 Dec - 31 Dec Porter Airlines (Canada) Ltd direct
30 Dec - 31 Dec Porter Airlines (Canada) Ltd direct

Also check the deals for one-way flights from Washington to Toronto in December.

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