Top honours went to South Australia's Port Lincoln, which had 96.1 per cent of its flights leave on time, and Port Hedland, Western Australia where 97.5 per cent of flights arrived on time during the month.

The previous month, Dubbo was ranked number 10 for departures, of which 88 per cent were on time.

The results were contained in the Domestic airline on time performance September 2014 report, released by the Department of Infrastructure and Regional Development.

Regional Express (Rex) outstripped rival airline QantasLink when it came to on time arrivals and departures for the Sydney to Dubbo and Dubbo to Sydney routes.

For the Dubbo to Sydney route, 83.6 per cent of the QantasLink flights departed on time, compared with 94.4 per cent of the Rex flights. QantasLink flights arrived on time in 80.3 per cent of cases, compared with 92.5 per cent of Rex flights.

Of the 161 scheduled Rex flights on the route, one was cancelled, while no QantasLink flights were cancelled.

Rex also outperformed QantasLink on the Sydney to Dubbo route, with 92.3 per cent of departures and 93.6 per cent of its arrivals on time, compared with 86.1 per cent of the departures and 82.8 per cent of the arrivals on QantasLink.

On that route, one of Rex's 157 flights was cancelled and no QantasLink services were cancelled.