Southwest has round-trip flights from Dallas (DAL) to Chicago, Miami, Fort Lauderdale, Tampa, Orlando, or Baltimore (MDW, MIA, FLL, TPA, MCO, BWI) for $138-$178, NONSTOP. $69-$89 each-way. Flights September to October. Origin/Destination reversible. Cheapest flights are midweek.
Orlando is the most expensive fare in this group.
Carry-on and checked bag are allowed for free. Southwest doesn’t charge change fees.