Cheapest return flights from Ontario to Hanoi in December from $983

AirHint found the following cheapest return flights from Ontario (ONT) to Hanoi (HAN) in December 2025 (see full year).

Return flights

02 Dec - 16 Dec China Airlines
03 Dec - 15 Dec China Airlines
03 Dec - 24 Dec China Airlines
03 Dec - 16 Dec China Airlines
05 Dec - 14 Dec China Airlines
02 Dec - 12 Dec China Airlines
06 Dec - 15 Dec China Airlines
05 Dec - 12 Dec China Airlines
08 Dec - 14 Dec China Airlines
25 Dec - 28 Dec China Airlines
24 Dec - 17 Jan Frontier Airlines
24 Dec - 14 Jan China Airlines
27 Dec - 10 Jan China Airlines
23 Dec - 13 Jan China Airlines
03 Dec - 07 Jan China Airlines
26 Dec - 09 Jan China Airlines
05 Dec - 01 Jan China Airlines
16 Dec - 13 Jan China Airlines
23 Dec - 07 Jan China Airlines
17 Dec - 07 Jan STARLUX Airlines

Also check the deals for one-way flights from Ontario to Hanoi in December.

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