Cheapest return flights from Austin to Toronto in December from $253

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

Return flights

15 Dec - 12 Jan Frontier Airlines
16 Dec - 07 Jan Spirit Airlines
06 Dec - 09 Dec Spirit Airlines
06 Dec - 10 Dec Spirit Airlines
15 Dec - 06 Jan Frontier Airlines
24 Dec - 31 Dec Spirit Airlines
30 Dec - 06 Jan Spirit Airlines
20 Dec - 05 Jan Spirit Airlines
20 Dec - 06 Jan Spirit Airlines
19 Dec - 04 Jan Spirit Airlines
26 Dec - 30 Dec Spirit Airlines
28 Dec - 30 Dec Spirit Airlines
30 Dec - 02 Jan Spirit Airlines
19 Dec - 01 Jan Spirit Airlines
18 Dec - 04 Jan Frontier Airlines
27 Dec - 29 Dec Spirit Airlines
06 Dec - 09 Dec Air Canada direct
06 Dec - 10 Dec Air Canada direct

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

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