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

Return flights

03 Mar - 24 Mar	WestJet
01 Mar - 08 Mar	Ryanair
24 Mar - 31 Mar	Ryanair
10 Mar - 19 Mar	United
07 Mar - 16 Mar	United
25 Mar - 07 Apr	United
24 Mar - 07 Apr	United
16 Mar - 23 Mar	United
11 Mar - 28 Mar	Ryanair
01 Mar - 17 Apr	United
26 Mar - 07 Apr	United
01 Mar - 06 Mar	Ryanair
07 Mar - 02 Apr	Ryanair
14 Mar - 04 Apr	WestJet
06 Mar - 15 Mar	United
06 Mar - 28 Mar	Ryanair
26 Mar - 08 Apr	United
14 Mar - 03 Apr	WestJet
21 Mar - 05 Apr	Ryanair
13 Mar - 05 Apr	United

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

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 March from $779

Return flights