that just the way the aircraft flies!
https://www.google.com/flights/#sear...AX+to+LGA;a=UA
https://www.google.com/flights/#sear...AX+to+LGA;a=AA
You want to try what?????
My mistake, I heard that Emirates had a similar A388 flight from SYD to DFW...I did not realize it was through DXB!