Cheapest return DUB–SJO flights, December

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

Return flights

12 Dec - 26 Dec Air Canada
31 Dec - 20 Jan British Airways
14 Dec - 21 Dec Air Canada
29 Dec - 30 Jan United
30 Dec - 20 Jan British Airways
08 Dec - 22 Dec United
31 Dec - 10 Jan United
15 Dec - 29 Dec United
16 Dec - 13 Jan United
28 Dec - 30 Jan United
27 Dec - 30 Jan Aer Lingus
18 Dec - 14 Jan United
15 Dec - 15 Jan KLM
21 Dec - 06 Jan United

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

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