A trans-Tasman airline lobby group will turn up the heat on airports this week, meeting with the government and officials to push for new ways of setting prices.

That's just days after the Commerce Commission said it's concerned Auckland International Airport was planning to make excessive profits on its regulated assets over a five-year period.

Airlines for Australia and New Zealand (A4ANZ) Chairman Graeme Samuel says they are pushing for regulators to have much greater powers.

"The Commerce Commission in New Zealand can monitor airports and airport pricing but it can't do much more about it," he says.

"It can't assist in the negotiation process between airports and airlines - and, of course, airports are monopolies."

Mr Samuel reckons that regulators in both Australia and New Zealand "need to have a much greater power to intervene where it's been seen that the monopoly airports are simply overcharging and under-delivering on services."

Airlines for Australia and New Zealand is due to meet Commerce Minister Kris Faafoi on Wednesday.