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

Return flights

05 Dec - 07 Dec	Japan Airlines
05 Dec - 23 Dec	EVA Air
02 Dec - 09 Dec	Japan Airlines
09 Dec - 23 Dec	Qatar Airways
27 Dec - 17 Jan	EVA Air
24 Dec - 17 Jan	EVA Air
27 Dec - 08 Jan	EVA Air
24 Dec - 18 Jan	EVA Air
25 Dec - 05 Jan	Korean Air
26 Dec - 07 Jan	Korean Air
12 Dec - 14 Dec	Korean Air
19 Dec - 10 Jan	Korean Air
21 Dec - 01 Jan	Korean Air
19 Dec - 18 Jan	Korean Air
16 Dec - 20 Dec	Qatar Airways
22 Dec - 02 Jan	Qatar Airways

Also check the deals for one-way flights from Oakland to Hanoi 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 Oakland to Hanoi in December from $1262

Return flights