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

Return flights

31 Dec - 18 Jan	Viva
31 Dec - 16 Jan	Viva
31 Dec - 15 Jan	Viva
31 Dec - 19 Jan	Viva
01 Dec - 12 Dec	Viva	direct
01 Dec - 10 Dec	Viva	direct
01 Dec - 11 Dec	Viva	direct
01 Dec - 05 Dec	Viva	direct
01 Dec - 06 Dec	Viva	direct
01 Dec - 14 Dec	Viva	direct
01 Dec - 09 Dec	Viva	direct
01 Dec - 17 Dec	Viva	direct
01 Dec - 07 Dec	Viva	direct
01 Dec - 20 Dec	Viva	direct
29 Dec - 18 Jan	Viva
29 Dec - 16 Jan	Viva
29 Dec - 15 Jan	Viva
29 Dec - 19 Jan	Viva
28 Dec - 18 Jan	Viva
28 Dec - 16 Jan	Viva

Also check the deals for one-way flights from Oakland to Guadalajara 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 Guadalajara in December from $325

Return flights