Definition
A certificated airline employee who shares operational control of a flight with the pilot in command. The dispatcher plans the flight, analyzes weather and route conditions, calculates fuel requirements, files the flight plan, monitors the flight in progress, and has joint authority with the captain to delay, divert, or cancel a flight.
Plain English
A trained ground-based professional at an airline who plans your flight with you, watches it the whole time you are in the air, and has equal say with the captain over whether the flight goes, where it goes, and when it turns back.
Context Anchor
Seen in commercial airline operations, especially when deciding whether weather, alternate airports, and required minimums allow a flight to be released.
Derivation
From the verb 'dispatch,' meaning to send off promptly. The aviation use kept that sense of 'sending the flight on its way,' but expanded it: the modern dispatcher does not just release the flight, they share legal responsibility for it from start to finish.
Why Pilots Care
The dispatcher and pilot share legal responsibility for the flight, so alternate minimum decisions directly affect whether a flight can be released.
Intuition Check
Do not read dispatcher as just someone who passes messages. In this FAA context, a dispatcher has an operational role in deciding whether a commercial flight can be released and supported safely.
Example Sentence 1
Before pushback, the captain reviewed the release with the dispatcher and agreed on the planned alternate.
Example Sentence 2
The pilot coordinated with the dispatcher to confirm the chosen alternate would remain above the required ceiling and visibility for the entire flight.