The service became available on a select number of services in December last year; the network-wide introduction builds on a range of customer improvements to streamline the airport experience.

Qantas Domestic Head of Customer Strategy Philip Capps said the expansion of the service marked an important milestone in the airline's commitment to innovation.

"Our Auto Check-in technology allows our Dubbo customers to check in for their flight with just three clicks on their smartphone," Mr Capps said.

"More than 30,000 customers have already used the new service to check in, view or change their seats and head straight to the lounge or gate without the need to print a paper boarding pass.

"We're committed to innovation and investing in new technology to give our customers, particularly those who are short on time, the chance to have a more relaxing journey."