My seat-mate from San Juan (
PR) to Miami was a private pilot who owned a twin. But he was cautious and took commercial on such long flights.
He had a story of a United?? charter that was full of cruise-ship passengers. But it landed at Isla Grande Airport rather than the main San Juan airport [TJSJ] ... the main runway at TJSJ is roughly aligned [8 vs 9] with Isla Grande, which comes a few miles before Munoz Marin Apt.[TJSJ] Even though the runway is considerably shorter, there was a safe landing ... but then the fun began. The runway at Isla Grande was too short for the loaded plane to take off. There weren't stairs that would reach the door on the plane in question ... so stairs had to be driven over from TJSJ ... and it was rush hour with road traffic jams. The pax were finally deplaned and bused to their cruise ship(s), which were late departing.
I forget how much had to be removed from the plane before it could take off and hop over to TJSJ.