I have been going down for 5 years and all times of the year. Have never paid over 385 RT from CLE to sdq or pop. You have to check everyay and keep at it. I took 8 last trip and paid 335 out of CLE. Dont give up keep trying you may get better deal.
I live in Columbus and drive to CLE to fly when the price is to high out of CMH.
Have a great trip.