Not sure if I am doing something wrong but in advance routing code only 2 airport code (connecting airport) is working for me. I can't give more then two. For Example DFW-SFO connection in MIA JFK LAX doesn't work but works for DFW-SFO connection in MIA LAX. I remember we can give upto 4 airport code in routing field. Did something change and now only 2 airport code work and we need to multiple segment tab ? And also I am assuming if we space (MIA LAX) it will check for all connection in all airport code versus comma (MAX,LAX) if will only check for any of the airport.