''They are always a good competitor - the important thing for us is to have a great direct service to the US out of Australia."
Qantas was also assessing more head-to-head competition with Air NZ, which flies a Dreamliner daily to Perth from Auckland and twice a week from Christchurch during summer.
Qantas will next March launch its daily flight to London using the new plane. The Australian airline currently runs a seasonal service three times a week from Auckland to Perth and is scheduled to end just as London flights start, the longest for a Dreamliner.
Evans said A330 aircraft would be used in any expanded service to Perth from New Zealand and more of these were becoming available.
''The prospects are good; we're continually able to free up aeroplanes or bits of flying time through the transformation processes," he told the Herald in Seattle.
Qantas is gaining operational efficiencies as part of the process and re-arranging schedules to free up aircraft.
More A330s were being modified for international flights by installing another crew rest and more toilets.
The airline already uses the wide body plane on the Sydney-Auckland route following the withdrawal of partner airline Emirates this year. It will use more of them across the Tasman when Emirates withdraws from Auckland -Melbourne and Auckland-Brisbane routes next year.
''The Tasman is a very important part of our network - it's very competitive - for us we are working with Emirates to get the capacity right," said Evans.
• Grant Bradley travelled to Seattle courtesy of Qantas and Boeing