Airports with direct flights:
LIM, EZE, LGA, EWR, MGA, BOG, MEX, LAS, MDE, ORD, JFK, PTY, CUN, ATL, LAX, YYZ, DFW, GYE, KIN, TPA, SJO, DEN, IAH, GIG, AUA, CLO, SFO, CCS, SCL, GCM, DTW, CUR, MAO, UVF, BWI, GSO, MCO, BOS, DCA, IAD, GRU, TGU, ORF, GUA, YUL, MBJ, RDU, SAN, CTG, SAL, MAR, AUS, SEA, IND, EGE, MCI, PIT, GDL, BGI, MEM, MTY, SAT, LIR, PHX, PHL, MVD, RIC, MSY, BSB, GNV, BNA, CLE, CNF, JAX, MID, CLT, TLH, BEL, MSP, SLC, STL, BZE, VVI, BHM, TUL, GND, PNS, GEO, CHS, PVD, FDF, CZM, CVG, SDF, MKE, FOR, CMH
This removes airports in the leeward islands, PR, Hispanola, and Cuba and europe.