Being a resident of Riyadh I frequently travel through King Khalid International Airport. The airport is not as par with the international standards but still gives a sense of peace with the limited space it has as the airport caters passengers through its 3 terminals. The duty free shops are good the eateries are fine and washrooms are clean. The security issue is not that stringent as compared to the most western countries. So you easily move out once you arrive or depart saving time. The only delay is for the first timers due to biometrics. Owing to the increase in air traffic the airport is getting chaotic a bit and need modernisation especially the International Terminal - 1 serving all International Airlines except Saudia. The only area of concern is the trolleys usually at times you don't get even one. Overall it's a low profile air facility with all the vital amenities.