[citation needed] A change in attitudes gradually took hold in the early 1970s and Lurgan Celtic was reborn, subsequently rising to become one of the strongest clubs in the Craigavon area.

that it was the club's nationalist stance as they pushed for membership of what was considered a predominantly Unionist league that stood in their way.

[citation needed] On the back of their title success the previous season, Celtic reached the quarter-finals for the first time ever in the 2015–16 Irish Cup.

The club were drawn to face senior NIFL Premiership side and beaten Irish Cup finalists the previous year, Portadown away at Shamrock Park.

However, Lurgan Celtic had the last say, and scored a last-minute penalty to win 3–2 and cause a major upset by eliminating Portadown, and reaching the semi-finals of the cup for the first time in the club's history.

Life in the NIFL Premier Intermediate League started with another managerial change, with former Glenavon, Spurs and Northern Ireland winger Gerard McMahon taking the reins at Knockramer Park.

It was announced on 29 June 2020 that Lurgan Celtic's application to join the Mid-Ulster Football League was accepted, and the club was due to play in the MUFL Junior Division 3 for the 2020–21 season.