I went to book a flight BDL to MCO last year on WN and it was going to be $700 for two tix when everything was said and done. I ended up flying out of MHT for $99 each way. Having Southwest, Jet Blue, AirTran, etc. at BOS impacts leisure travel prices at BOS/MHT/PVD in a way that does not effect BDL. I'm not expecting a major price drop in all markets due to JetBlue, but I think it will effect certain domestic leisure travel routes in a positive way.