Cheapest return flights from Dublin to San Jose in December from $821

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

Return flights

29 Dec - 17 Jan United
14 Dec - 28 Dec United
26 Dec - 11 Jan United
26 Dec - 10 Jan United
20 Dec - 10 Jan Ryanair
14 Dec - 02 Jan United
24 Dec - 03 Jan United
24 Dec - 02 Jan United
27 Dec - 03 Jan United
19 Dec - 03 Jan British Airways

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

Skyscanner

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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