AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Toronto (YYZ) in December 2025 (see full year).

Return flights

16 Dec - 05 Jan	Frontier Airlines
12 Dec - 08 Jan	Breeze Airways
10 Dec - 14 Dec	Frontier Airlines
08 Dec - 15 Dec	Breeze Airways
01 Dec - 11 Dec	Frontier Airlines
10 Dec - 16 Dec	Frontier Airlines
12 Dec - 07 Jan	Breeze Airways
11 Dec - 14 Dec	Breeze Airways
10 Dec - 13 Dec	Frontier Airlines
01 Dec - 04 Dec	Breeze Airways
12 Dec - 13 Dec	Spirit Airlines
23 Dec - 29 Dec	Frontier Airlines
01 Dec - 11 Dec	Air Canada	direct
12 Dec - 08 Jan	Air Canada	direct
12 Dec - 07 Jan	Air Canada	direct

Also check the deals for one-way flights from Raleigh-durham 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 Raleigh-durham to Toronto in December from $236

Return flights