I've booked two tickets on Delta out of ECP since the airport opened. SW couldn't beat them on either one. Both SW routings were two-stop itineraries for the same or more $ than Delta's single-stop itineraries. And, I can't say the Delta fares seemed to be substantially less than they would have previously been out of PFN, but who's to say for sure.
I'm still hoping that SW will beat Delta fares, drive them down, or both.
I'm still hoping that SW will beat Delta fares, drive them down, or both.