People wanting to pick up friends or relatives from Sydney Airport's domestic terminal will have to park a couple of hundred metres further away or pay a $4 fee under an overhaul of the congested airport's parking.

The number of parking spots available for free pick-up at the airport will be significantly increased, and users will have an extra five minutes without having to pay.

But the free pick-up area will be moved further from the domestic terminal, and the section of the airport currently used for free pick-ups will attract a $4 toll for 15 minutes, levied via e-tag.

Car-share drivers using UberX or GoCar will be able to pick up customers from either the $4 pick-up zone or the new free pick-up zone.