Non-towered airport
（重定向自Uncontrolled airport）
![Sedona Airport, in Arizona's Verde Valley, is one of the many airports that operate without a control tower.](/Images/godic/202502/18/Sedona_airport2832.jpg")
![Standard US airport traffic pattern. Fig. 4-3-2 from FAA AIM.](/Images/godic/202502/18/Airport_Traffic_Pattern_from_AIM_4-3-2.svg2832.png")
A non-towered airport is an airport with no operating tower, or air traffic control unit. The vast majority of the world's airports are non-towered, and even airports with control towers may operate as non-towered during off-hours, typically during the night.