AirHint found the following cheapest return flights from Houston (IAH) to San Jose (SJO) in December 2025 (see full year).

Return flights

08 Dec - 20 Dec	Viva
04 Dec - 20 Dec	Viva
14 Dec - 20 Dec	Avianca
10 Dec - 24 Dec	Avianca
08 Dec - 14 Dec	United	direct
08 Dec - 23 Dec	Viva
04 Dec - 23 Dec	Viva
04 Dec - 08 Dec	United	direct
26 Dec - 30 Dec	Viva
14 Dec - 23 Dec	Viva
27 Dec - 01 Jan	Avianca
24 Dec - 02 Jan	Avianca
23 Dec - 02 Jan	Volaris
27 Dec - 01 Jan	United	direct
24 Dec - 02 Jan	United	direct
23 Dec - 02 Jan	United	direct

Also check the deals for one-way flights from Houston 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 Houston to San Jose in December from 335€

Return flights