Leeds scored early in both halves to take control of the game before adding a further two goals in the final ten minutes as the Tigers’ struggles continued.
There were four changes to the side that lined up against Barnsley in midweek. Sean McLoughlin came into the back four in place of the injured Jordy de Wijs, while Mallik Wilks returned having been ineligible to feature on Wednesday night to take the place of Marcus Maddison who dropped to the bench. Martin Samuelsen came in for the injured Jon Toral with a fourth change seeing George Honeyman replace Jackson Irvine. With Irvine on the bench, George Long wore the captain’s armband.
Former Hull City youngster Liam Cooper skippered the visitors who had Illan Meslier in goal with regular keeper Kiko Casilla having been banned for eight games by an independent regulatory commission following a breach of FA Rule E3(2).
There was almost an early chance for the home side as Callum Elder’s throw was flicked on by Josh Magennis but the ball went just behind Samuelsen inside the six-yard box.
However, it was Leeds that took the lead in the fifth minute as Luke Ayling’s 25-yarder was deflected past Long.
The visitors almost had a second inside eight minutes as a Pablo Hernandez shot crashed against the woodwork before the game settled down and Kevin Stewart saw a shot deflect into the hands of Meslier.
Stewart then choked a shot wide from the edge of the box as the home side began to enjoy the better of things but they still trailed at the break.
McLoughlin headed a Honeyman corner into the hands of Meslier at the start of the second half but again it was the visitors that struck early as Hernandez rolled a shot into the bottom corner.
Long made decent saves to deny Helder Costa and Mateusz Klich before Jack Harrison hit the woodwork with a curling effort from distance.
Meslier had to react to turn a looping, deflected effort from Magennis over the bar and the keeper also did well to claim Kevin Stewart’s cross as Honeyman ran in front of him.
Norbert Balogh came on to make his first KCOM appearance as part of a double substitution that also saw Daniel Batty introduced with Magennis and Leonardo Da Silva Lopes making way.
Balogh was close to having the desired impact when his fierce shot came back off the outside of the post, while at the other end Long did well to turn Harrison’s effort wide before making a further save to keep out Costa.
A final change saw Maddison come on for Samuelsen, but it was game over nine minutes from time as Leeds substitute Tyler Roberts made it 3-0.
The Welsh international then rounded off the scoring with an unmarked header three minutes later.
Hull City: George Long ©; Robbie McKenzie, Matthew Pennington, Sean McLoughlin, Callum Elder; Kevin Stewart, Leonardo Da Silva Lopes (Daniel Batty 63), George Honeyman; Mallik Wilks, Martin Samuelsen (Marcus Maddison 76), Josh Magennis (Norbert Balogh 63).
Subs Not Used: Matt Ingram, Ryan Tafazolli, Stephen Kingsley, Jackson Irvine.
Leeds United: Illan Meslier; Luke Ayling, Ben White, Liam Cooper, Stuart Dallas; Kalvin Phillips, Mateusz Klich, Pablo Hernandez (Jamie Shackleton 87); Helder Costa, Jack Harrison (Ezgjan Alioski 87), Patrick Bamford (Tyler Roberts 66).
Subs Not Used: Elia Caprile, Barry Douglas, Gaetano Berardi, Jordan Stevens.
Referee: Mr K. Stroud.