Spirit will be flying to St.Maarten from Ft.Lauderdale on April 20. They will be flying there 3 times a week using an A319. They will be also be flying to San Jose.
I saw that Frontier will be flying E-170’s that should be a nice looking aircraft. Also how often does that site update because BTV is looking at adding another airline but I didn’t see one on there or any new routes to BTV.
The website is updated every saturday.