He was apparently found near the central taxi hold area for yellow cabs, where several taxi drivers rushed to the man's aid.
One called 911, while the shooting victim asked for a driver's cell phone.
The victim was rushed to Elmhurst Hospital in critical condition.
Police believe the victim may have been shot inside a vehicle or off airport property and then dumped in front of the terminal.
Three armed men reportedly fled in a silver Pathfinder. No arrests were immediately made.
NEW YORK AND TRI-STATE AREA NEWS