Hi, JetBlue noob here trying the airline due to the American alliance. I am looking at a flight (B6886 on 4/17) from STT to EWR that is listed as "1 stop" but without a layover and no apparent info on the Jetblue site as to where the interim stop is. Sleuthing on flightaware, it looks like maybe it stops at SJU? But the flight is not bookable as STT-SJU or SJU-EWR on my date. Does that mean the plane is literally stopping in SJU and then taking off again without anyone getting on or off? I didn't think that type of flight has existed for the past 30+ years. I can't imagine that refueling would be needed given that SJU and STT are essentialy the same distance from Newark. Am I missing something?