I have just been checking my records for the Chicago route - which will have possibly included a short period when BMI were also on the route - and have the following figures for passengers carried in June of each year: I've also done a similar list for Philadelphia in the second column.
MAN/ORD.............................MAN/PHL
2005 - 25,585.......................12,525
2006 - 24,634.......................12,340
2007 - 24,537.......................14,449
2008 - 22,682.......................14,520
2009 - 12,152.......................15,111
2010 - 9,715.........................14,987
2011 - 9,917.........................14,653
2012 - 10,544.......................15,101
2013 - 11,156.......................14,386
2014 - 11,148.......................11,964
2015 - 10,537.......................10,576
2016 - 9,485..........................9,769
2017 - 7,891.........................10,991
2018 - 8,702.........................10,654
It is so obvious that the route has run it's course. What a shame.