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

Return flights

24 Jan - 02 Feb	Ryanair
22 Jan - 29 Jan	United
08 Jan - 17 Jan	United
10 Jan - 08 Feb	United
30 Jan - 08 Feb	United
29 Jan - 07 Feb	United
10 Jan - 17 Jan	United
24 Jan - 14 Feb	United
07 Jan - 22 Jan	United
13 Jan - 17 Jan	Aer Lingus
06 Jan - 21 Jan	SWISS
28 Jan - 22 Feb	Air Canada
04 Jan - 10 Jan	Ryanair
03 Jan - 01 Feb	Air France
03 Jan - 12 Jan	Ryanair
01 Jan - 11 Jan	United
03 Jan - 24 Jan	Ryanair

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

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 Dublin to San Jose in January from 669€

Return flights