Terminal wars are set to cost the West Australian economy tens of millions of dollars because the flying kangaroo and the airport cannot find a solution to the impasse about where flights take off

and land in Perth.

The long running stoush over fees that the airline has not paid to Perth Airport is heading to the courts, but it has cost much more than the millions of dollars in dispute.

Qantas is boasting a boost to West Australian tourism after its first year of non-stop flights between Perth and London, but says a dispute is affecting more direct services. Credit:ninevms

Additional markets have been earmarked to expand the airline's international operations and make Perth a western gateway to the world.

In the past year, Perth has missed out on an extra three return flights per week to Johannesburg and on Monday the Chief Executive, Alan Joyce confirmed that the speculated Perth to Paris direct flight has been grounded because of the standoff.