The United States warned of a heightened terrorism threat against American banks and hotels in Indonesia's second largest city, Surabaya.

Australia's Department of Foreign Affairs has since updated its own travel advice urging travellers to show a "high degree of caution" though it does not call for people to reconsider visiting Indonesia.

But, Harvey World Travel consultant Aaron Powyer said Dubbo residents had not been deterred by these warnings, with holiday bookings still coming in steadily.

When taking bookings, Mr Powyer said residents had expressed concern regarding flying with specific airlines.

"We certainly heard a few concerns after the first Malaysian Airlines incident, but now AirAsia seems to be the main concern," he said.

Despite the concern, Mr Powyer said Indonesia was still a popular holiday destination for Dubbo residents.

"I think it will be a good year for travelling, there has been no cancellations here so people are still going ahead with their plans."

If anything, 2014 was a tragic year for aviation with 155 passengers and seven crew feared dead after AirAsia flight QZ8501 lost contact with Jakarta air traffic control on December 28 while en route from Surabaya to Singapore.

Ten months earlier, on March 8, Malaysia Airlines Flight 370 disappeared from radar screens when flying from Kuala Lumpur to Beijing, with no trace of the Boeing 777 or its 227 passengers and 12 crew members.

Only four months after that on July 17, 283 passengers and 15 crew members died when another Malaysian Airlines jet, MH17, was shot down over Ukraine while en route from Amsterdam to Kuala Lumpur.

More than 220 more people have died in airline disasters in Nepal, Taiwan, Iran and the Mali desert this year.