Australia's most complained about airline in 2014: Tigerair Australia

Tigerair Australia has retained its title as Australia's most complained about airline.

The low-cost airline has topped the list of most complained about Australian airline for the third year running, according to the annual Airline Customer Advocate (the Advocate) 2014 Report.

Tigerair Australia, which commenced flight services domestically in 2007, received the highest number of complaints for it overall services followed by Jetstar, Virgin Australian, Qantas and Regional Express.

Overall, the number of airline complaints nationally has risen by more than 13 per cent since last year, with refund requests (31 per cent), delays and cancellations (15 per cent) and service terms and conditions (12 per cent) being the most complained about issues from air passengers.

Close to 70 million passengers flew domestically and internationally in 2014, with the total of 1132 complaints received by the Advocate for that year; compared to 983 complaints received in 2013 - an increase of 149 complaints.

With a rise in the number of complaints, the average time spent finalising a complaint increased from 14.9 to 18.3 calendar days. However, resolution rates decreased to just over 60 per cent in 2014 - the decline was a first since 2012 when the inaugural report was published.

Singapore Airlines was recently named the best international airline for customer service by Australian travellers, according to research from Roy Morgan Research, ahead of Emirates, Qantas and Garuda, with a 90 per cent satisfaction score.