I remember with Metrojet (the last time we had BOS-Florida nonstops for the most part), the loads were hit and miss. Maybe a couple a day would do, but not a lot, especially since B6/Song also flies in the maarket and the yields probably arent very good for the most part. I would think that some point to point one stops might work in the right markets. If you cant fill a 319 BOS-RIC/ORF/GSO and RIC/ORF/GSO-Florida, maybe a one stop BOS-RIC-FLA would work. Get away from all the hub offerings that cost the $ and open up some seats for a direct flight and fill the rest with locals to/from RIC/ORF/GSO. There are quite a few cities along the East coast where this could possibly work given the right equipment and fare structure. The key would be to find out which ones and implement them.