Planespotting in Port Elizabeth is not comparable to planespotting in Johannesburg or Cape Town. There aren't any international flights to and from Port Elizabeth at the moment. The airlines flying into P.E. use it for domestic connections within the country or for feeder services to their hubs in Johannesburg. The biggest aircrafts in Port Elizabeth will have the size of a Boeing 737 (SAA, Nationwide, Comair). There are also MD-82s (Kulula.com), DC-9s (1Time) and smaller aircrafts like ERJ-135s or Jetstream 41s (both SA Airlink).