Welcome to Flyertalk Flambed1!
FYI, this is the wrong forum for these requests. This forum is for posting of deals only. Requests threads should be posted in Mileage Run discussion. Don't worry, I have asked the mods to move this thread, just a heads up for future reference.
Within the 12/14-12/23 date range, the cheaper (though not necessarily cheap at this time of year) fares are this week, Monday through Thursday 12/14-12/17.
Best I'm seeing, on a very quick perusal, is EWR-CTL-EWR for $260 on 12/14, 12/15, or 12/17.