With Rory Deane and Mark Delaney involved from the outset the west cork champions were boosted by a David Power goal, in the 10th minute from a penalty and, though keeper Donal Casey was called on twice to make a name for himself, it was the men in blue who produced the goods when afforded the scoring chances.
With Timmy O'Brien adding a brace of points from half back, in a defence where David Daly was outstanding. Kevin Casey added a second goal 12 minutes before half time. The contest was effectively over at half time with Bantry going in 2-12 to 0-5 to the good.
Any faint Millstreet hopes of a revival were ended when Colm O'sullivan slipped home Bantry's third goal early in the second half, while a fine individual effort from Mark Delaney secured number four.
Millstreet pulled a goal back late in the game but by then the blues had a weekend semi-final meeting with Beara to look forward towards.
Scorers for Bantry:
D Power 1-2, R Deane 0-5, CO'Sullivan, M Delaney1-1 each, K Casey 1-0, T O' Brien, J Murphy 0-2 each, T Downey 0-1
Bantry: D Casey, C Power, C O' Leary, S Edgeworth, D Daly, T Downey, T O' Brien, M Delaney, A Keane, K Casey, R Deane, G Hurley, J Murphy, C O' Sullivan, D Power.
Subs: G O' Shea for G Hurley, S Delaney for C O' Sullivan, D Lynch for C Power, P O'Brien for S Edgeworth, B Crowley for J Murphy.