EMB ERJ 170/175 ER/LR
Dispatch Dispatcher
Situational Awareness; Communication Breakdown; Confusion
Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Company Policy; Human Factors; Procedure
Operations delayed flight without Dispatcher contact. I called operations. They said they see a different ETA; which was the reason for the delay. They show an ETA that is 15 minutes sooner than we do. Cross-referencing with [computer] gave me a wheels-on time of XA:22. A 10 minute taxi in time makes our time in plot accurate.Two issues. [Company] has incorrect ETA's and [company; city operations] is not contacting us for delays.
Dispatcher reported difference of ETA between Dispatch and Operations.