With the regular fogs out there in Bogan Central, the name "Mist Airport" would give rise to "Mist Approach".
Or "Compensate Me Airport", from the number of scumbags who will have their hands out for a payoff due to loss of (pick one) amenity/ sleep/ sex life/ parking spot/ sunlight due aluminium overcast/ lawns due to chemtrail spillage/ serenity.
But who will ever want to land in Penrith and then spend another 2+ hours getting to Australia?