American Airlines has round-trip flights from Dallas (DFW) to Cleveland (CLE) for $170, NONSTOP. Flights November to March. Extended weekends available. Mostly on Tue, Wed, Sat. Origin/Destination reversible. No Thanksgiving dates.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.