The Australian Tourism Export Council (ATEC) says operators expect travellers to postpone trips until it's clear the virus is under control.
"There's been no impact, or very little impact yet, we have not seen any cancellations due to the swine flu," ATEC managing director Matt Hingerty said on Tuesday.
But he said past flu outbreaks, such as bird flu and SARS, led to sharp falls in the number of tourists heading to Australia.
He noted that in the past, the industry had recovered strongly.
"Travel is deferred, rather than cancelled, so the key is to keep marketing Australia as an attractive destination through the down times," he said.
"We need to stay calm, and promote the fact that we have strong responses in place to deal with health scares in Australia."
He said the most immediate threat to the tourism industry was the global financial crisis.
"We are being impacted by the global financial crisis, that's the big picture."
But the financial crisis had also ensured the industry was well prepared to deal with the fallout from swine flu.
"With the cheap airfares and discount holidays you could argue that the industry has never been better prepared for this," he said.
ATEC will hold its annual conference in Darwin from April 29-30.
So far there are no confirmed cases of swine flu in Australia, but almost 50 people with some symptoms have been tested. Many have already been cleared.
Swine flu has been cited as the probable cause of 152 deaths in Mexico.
Swine flu cases have also been confirmed in the United States, Britain, Canada and Spain, with suspected cases in 11 other countries including Australia.
(AAP)

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