Port Lincoln airport has been named the most reliable of the top 20 busiest airports in the nation.
A recent report by online publisher finder.com.au has found Port Lincoln has the lowest number of flights delayed.
The report puts Port Lincoln on top for reliability with some well-known airports not fairing as well.
The Sunshine Coast was named as the worst airport for reliability with 31% of their listed flights delayed during 2017.
Hobart (27%), Gold Coast (24%), Launceston (24%) and Sydney (20%) were also named in the top 5 least reliable airports in the country.
Conversely Port Lincoln flights were delayed just 8% of the time making them the most reliable ahead of Karratha (11%), Perth (13%), Townsville (14%) and Adelaide (14%).