And what has he received in return for taking the trip up North?
Well, not only has 19-year-old Denayer been given regular game time, traveled the continent in the Europa League, won two trophies and performed superbly for the Bhoys, he has now scooped up some end-of-season awards.
Indeed, the Manchester City loanee was last week voted Celtic's Young Player of the Year. This weekend, he was named the SFA Young Player of the Year.
It's just reward for the Belgian after a fine season at Parkhead and it should boost his profile among Manchester City fans. But that, of course, may have implications for Celtic.
Denayer's loan expires at the end of the current season and City may well want the teenager back on their books next term. With Vincent Kompany & Eliaquim Mangala off form and Martin Demichelis lacking pace at the twilight of his career, the 19-year-old could be perfect for the Manchester City squad right now.
Just as he is perfect for Celtic. Here's what Twitter was saying after the Belgian's award:
Jason Denayer has now been named PFA Young Player of the Year in Scotland. His season keeps getting better! #MCFC— The Maine Blues (@TheMaineBlues) May 3, 2015
Very well deserved for Johansen and Denayer. Two best players in Scotland this season by some distance.— Scott Crowe (@ScottC202) May 3, 2015
Jason Denayer 100% deserved young player of the year but I think Adam Rooney was a better shout for the main award— Lewis (@Deja_Lew234) May 3, 2015
Both Johansen and Denayer have proven themselves to be invaluable assets to the club this season and hopefully will remain at @celticfc— Michael Rimicans (@MRimicans) May 3, 2015