What about DirectAir from Worcester? They have a sale for $79 each way. We take carryon luggage anyhow so no baggage fees. I haven't seen many good deals with Southwest lately.
WORCESTER,MA/BOSTON ORLANDO/SANFORD, FL D1 - 5805 25Aug2012 10:35 AM 25Aug2012 01:34 PM
ORLANDO/SANFORD, FL WORCESTER,MA/BOSTON D1 - 5804 02Sep2012 02:15 PM 02Sep2012 04:49 PM
Passengers Fare Per Passenger
Fare Rules Services Taxes Subtotal
1 Adult 107.16 USD 0.00 USD 50.84 USD 158.00 USD
Total Price: 158.00 USD
http://www.visitdirectair.com/