Yes, it all depends on the operators useage of that particular airframe in regards to cycles and flying hours. Your routing change of a couple of minutes isn't going to reduce the number of cycles that aircraft is going to do..
Times that C Checks will also be carried out can be affected by the application of AD's / SB's that must be carried out by set dates / FH / Cycles. It can be more cost effective to have the C check done at this point also..
