I am showing a 757 used for the all too brief EWR nonstop to LAX. The JFK nonstops were in the early eighties using L1011's. At MCI, Eastern used mainly narrowbody equipment....757's, DC-9's, and 727's. No L1011's or A300's. They flew nonstop MCI to MCO, DCA, EWR, LGA (never JFK), BOS, PHL, BDL, ATL, MIA (but surprisingly not for long), FLL, DEN (again not for very long), TPA, ICT, ORD, DFW, IAH, LAX, LAS, PHX, SAN, SFO, ONT, Portland, Oregon, SEA, ABQ, MSY, and a few other places. EWR and JFK to SJU was mainly L1011's, and 757's although someone once told me on a very VERY rare occassion they used DC10's from JFK. I don't remember a nonstop to Jamaica or Cancun from New York City, although Mexico City was served with L1011's at first and later on 757's. JFK to SFO used L1011's in the early eighties, but this route did not last long.