AirHint found the following cheapest return flights from Pittsburgh (PIT) to Toronto (YYZ) in December 2025 (see full year).

Return flights

05 Dec - 08 Dec	Spirit Airlines
15 Dec - 04 Jan	Spirit Airlines
17 Dec - 04 Jan	Spirit Airlines
16 Dec - 04 Jan	Spirit Airlines
05 Dec - 08 Dec	Air Canada	direct
14 Dec - 04 Jan	WestJet
18 Dec - 04 Jan	WestJet
14 Dec - 04 Jan	Air Canada	direct
15 Dec - 04 Jan	Air Canada	direct
16 Dec - 04 Jan	Air Canada	direct
17 Dec - 04 Jan	Air Canada	direct
18 Dec - 04 Jan	Air Canada	direct

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

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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Cheapest return flights from Pittsburgh to Toronto in December from $310

Return flights