The Island's passenger watchdog is to hold an urgent meeting with airport management later this week over moves to scrap one hour free parking.
Travel Watch say the decision hasn't been thought through properly.
The change would see a £1 charge replace the previously free hour in Ronaldsway's car park.
Travel Watch Committee Member Paul Moncaster says there are big flaws in the proposal:
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Yellow weather warning for coastal overtopping
Strong winds are expected overnight
Plans approved for 'The Wing'
New billboard to be introduced at Ronaldsway Airport
Police appeal for video footage after 'significant' blaze
Site now deemed 'structurally unsafe'
Douglas to receive new lifeboat
Port St Mary is to lose one of its lifeboats in the next two years