Definition
An airport that does not have an operating air traffic control tower. Pilots operating to or from a nontowered airport are responsible for their own separation, sequencing, and traffic awareness, typically by self-announcing their position and intentions on a Common Traffic Advisory Frequency (CTAF) and following standard traffic pattern procedures.
Plain English
An airport with no control tower. Instead of a controller telling pilots when to take off, land, or taxi, pilots talk to each other on a shared radio frequency and look out for one another.
Context Anchor
You will see this term in flight planning, airport information, instructor scenarios, and procedures for arriving at or departing from airports without an operating tower.
Derivation
‘Non-’ means ‘not,’ and ‘towered’ refers to having an operating control tower. So a nontowered airport is simply one without an active tower. Some airports are permanently nontowered; others become nontowered after the tower closes for the night (often called ‘part-time tower’ airports).
Why Pilots Care
Pilots must actively listen and communicate to avoid conflicts because no controller is directing traffic.
Intuition Check
Do not read “nontowered” as “uncontrolled” or “no rules.” It only means there is no operating control tower; pilots still follow aviation rules and standard airport procedures.
Example Sentence 1
Approaching the nontowered airport, she announced her position on the CTAF and entered the downwind at pattern altitude.
Example Sentence 2
During the lesson the instructor chose a nontowered airport so the student could practice landings while monitoring other traffic on the radio.