| Cheap Flights: San Antonio to Dublin $483-$490 r/t [January-March] â United United has round-trip flights from San Antonio (SAT) to Dublin (DUB) for $483-$490 with a connection. Flights January to March. Departures on Monday, Tuesday, Wednesday, and Sunday. 7-day minimum stay required. Click for more details and booking links Cheap Flights: San Antonio to Dublin $483-$490 r/t [January-March] â United . | 