Blackpool made it five games without defeat as they condemned Colin Todd's Bradford to a third successive defeat.
David Fox opened the scoring, prodding home from close-range, before Wes Hoolahan netted from the spot when Andy Morrell was fouled in the penalty area.
Morrell sent through Kiegan Parker to score the third and Hoolahan set up Parker to fire home for his second.
Jermaine Johnson grabbed a consolation before Joe Brown was sent off late on for violent conduct.
Blackpool: Evans, Barker, Jackson, Evatt, Dickinson, Forbes (Jorgensen 73), Southern, Fox, Hoolahan (Prendergast 76), Parker (Blinkhorn 90), Morrell.
Subs Not Used: Jones, Joseph.
Goals: Fox 39, Hoolahan 45 pen, Parker 64, 70.
Bradford: Ricketts, Doyle, Wetherall, Bower, Parker (Edghill 55), Jermaine Johnson, Schumacher, Bridge-Wilkinson (Colbeck 64), Brown, Holmes, Windass.
Subs Not Used: Saynor, Ainge, Swift.
Sent Off: Brown (90).
Booked: Parker, Schumacher, Windass.
Goals: Jermaine Johnson 84.
Ref: R Shoebridge (Derbyshire).