For the first time since 1995, the Oval was chosen as the final venue following the discovery of damage to a stand at Windsor Park during the stadium's redevelopment.
[2] However, this season they were eliminated in the sixth round after a shock 2–0 defeat to second-tier side Harland & Wolff Welders.
All ties level after 90 minutes used extra time to determine the winner, with a penalty shoot-out to follow if necessary.
[6] 1st Bangor Old Boys were the lowest ranked team to reach this round – the only representatives as low as the sixth tier of the Northern Ireland football league system that still remained in the competition.
Linfield's home tie against Warrenpoint Town was initially delayed until 16 February 2015 to allow time for an IFA investigation into allegations that a Warrenpoint Town player, Darren Forsyth, who had played in the 3–1 win over Coleraine in the previous round may have been ineligible.
In the event of Forsyth being deemed as ineligible, Warrenpoint Town would have faced expulsion from the competition, with Coleraine reinstated as Linfield's sixth round opponents.
[6] Carrick Rangers and Harland & Wolff Welders were the lowest ranked sides to reach the quarter-finals, as the only two clubs from outside the top-flight remaining in the competition.
The 4 quarter-final winners entered the semi-finals, with the matches played on 21 March 2015 at neutral venues.
It was switched from the usual venue following the discovery of damage to a stand at Windsor Park.
The trend continued, with Glentoran winning once again without conceding a goal, to lift the cup for the 22nd time overall.