Spillane played competitive Gaelic football as a boarder at St Brendan's College. Here he won back-to-back Corn Uí Mhuirí medals, however, an All-Ireland medal remained elusive. Spillane first appeared for the Templenoe club at underage levels, before winning a county novice championship medal in 1973. With the amalgamated Kenmare District team he won two county senior championship medals in 1974 and 1987. While studying at Thomond College Spillane won an All-Ireland medal in the club championship in 1978. He also won one Munster medal and a county senior championship medal in Limerick.