29/10/2026
Ad hoc travel booking is cheap in the sense that the invoice is small.
Book a crew hotel three days out and you pay the rate that is left, not the rate that existed. Same for flights, where the last-minute fare is a different product from the one available a fortnight earlier. That gap does not show anywhere. There is no line on the invoice comparing what you paid to what you could have paid, so the cost stays invisible.
Then there is the time. Every ad hoc booking is somebody sourcing, comparing, checking a cancellation policy, and re-entering details that already exist somewhere. Twenty minutes each, several a week, done by a person whose job is something else.
And the errors. Ad hoc booking is manual, and manual work done at speed produces the same small mistakes repeatedly. A name that does not match the passport. A hotel booked for the right date in the wrong city. A transfer arranged for local arrival time rather than actual. None of them are expensive on their own. All of them are expensive when they surface at the airport.
None of this is an argument that ad hoc booking is wrong. Some trips genuinely appear with two days' notice. It is an argument that the number on the invoice is not the number, and most organisations have never worked out what the real one is.