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

Return flights

08 Dec - 15 Dec	Delta
06 Dec - 11 Dec	Delta
16 Dec - 24 Dec	Frontier Airlines
06 Dec - 13 Dec	United
13 Dec - 24 Dec	Delta
12 Dec - 22 Dec	Frontier Airlines
29 Dec - 07 Jan	Breeze Airways
11 Dec - 23 Dec	Southwest Airlines
12 Dec - 23 Dec	Southwest Airlines
20 Dec - 23 Dec	Frontier Airlines
20 Dec - 27 Dec	Frontier Airlines
24 Dec - 04 Jan	Frontier Airlines
31 Dec - 07 Jan	Southwest Airlines

Also check the deals for one-way flights from Raleigh-durham to San Jose 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 San Jose in December from 236€

Return flights