I don't have any personal memory of this, but here are some anecdotes, as related to me by my parents, about travel in the very early 1950s.
My parents were living in Darwin at the time, but some time before my birth, my mother returned to her home town, Brisbane, for the big event. In those days, things were pretty primitive hospital-wise in Darwin. In fact, most aspects of life in Darwin then were very basic. Subsequently, my first air journey was from Brisbane to Darwin, was as a babe in arms, with my mother, in a DC3. The trip took all day, with I think about 5 or 6 stops to refuel and collect passengers along the way. At Longreach, cars were used to bring the passengers into town for lunch at a hotel. Air travel was such a rare thing then - my grandparents, aunts and uncles and cousins would all travel out to Eagle Farm Aerodrome at the crack of dawn to see us and the plane depart.
Some time soon after that, my parents bought a new car, a Hillman, to be collected in Brisbane and then to be driven to Darwin. Not via the direct route across central Queensland where the roads just didn't exist, but driven via Sydney, Melbourne and Adelaide, then on the passenger/freight train to Alice Springs, and then driven up the Highway to Darwin. No air conditioning, no mobile phone reception, and the baby seat for me was a metal and canvas contraption that hung over the back of the front bench seat, between the driver and passenger. We got there!
Before she passed away, I took my mother a couple of times to the USA for holidays, with more 12 and 14 hour flights, but those trips were a lot safer and more comfortable than our early journeys together.