Cheapest return flights from Washington to Toronto in December from $208

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

Return flights

02 Dec - 07 Dec Porter Airlines (Canada) Ltd direct
04 Dec - 09 Dec Porter Airlines (Canada) Ltd direct
03 Dec - 08 Dec Porter Airlines (Canada) Ltd direct
04 Dec - 08 Dec Porter Airlines (Canada) Ltd direct
16 Dec - 19 Jan Porter Airlines (Canada) Ltd direct
06 Dec - 13 Dec Porter Airlines (Canada) Ltd direct
07 Dec - 10 Dec Porter Airlines (Canada) Ltd direct
07 Dec - 09 Dec Porter Airlines (Canada) Ltd direct
11 Dec - 15 Dec Porter Airlines (Canada) Ltd direct
04 Dec - 07 Dec Porter Airlines (Canada) Ltd direct
06 Dec - 09 Dec Porter Airlines (Canada) Ltd direct
18 Dec - 03 Jan Porter Airlines (Canada) Ltd direct
25 Dec - 09 Jan Porter Airlines (Canada) Ltd direct
25 Dec - 02 Jan Porter Airlines (Canada) Ltd direct
18 Dec - 02 Jan Porter Airlines (Canada) Ltd direct
25 Dec - 12 Jan Porter Airlines (Canada) Ltd direct
14 Dec - 01 Jan Porter Airlines (Canada) Ltd direct
15 Dec - 01 Jan Porter Airlines (Canada) Ltd direct
17 Dec - 01 Jan Porter Airlines (Canada) Ltd direct
18 Dec - 04 Jan Porter Airlines (Canada) Ltd direct

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

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