Cheapest return flights from Bangkok to San Jose in January from $1023

AirHint found the following cheapest return flights from Bangkok (BKK) to San Jose (SJO) in January 2026 (see full year).

Return flights

19 Jan - 19 Feb EVA Air
01 Jan - 04 Jan Korean Air

Also check the deals for one-way flights from Bangkok to San Jose in January.

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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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