The 4am transport decision is usually made by comparing a £12 coach seat with a taxi fare — while the £300-plus cost of missing the flight sits invisibly off the ledger. Here's the missed-flight bill itemised, and the expected-value arithmetic that should actually drive the choice.
Free cancellation up to 24 hours before pickup
Budget carriers' missed-departure rescue fees (arrive within a window after your flight closes and pay to join the next one) run to roughly £100 per person when available — and when they're not, a same-day walk-up fare on the next flight is routinely two to four times what you originally paid. Per person: the family of four multiplies everything on this page by four.
Next seat tomorrow morning? Add an airport hotel at walk-in rates, airport meals for the duration, and — the line people forget — the first night of the holiday accommodation you're no longer sleeping in, usually non-refundable. A missed outbound quietly bills you at both ends of the journey.
A missed connection cascading down the itinerary; the meeting that was the point of the trip; a day of annual leave spent in a departure lounge. None of it appears on a receipt, all of it is real — and travel insurance often excludes “failure to arrive in time” when the transport you chose simply ran late.
The honest frame: (chance of missing) × (total bill above) versus the fare difference between transport options. A 10% miss-risk on a £400 downside costs £40 in expectation — more than the entire gap between the coach and a fixed-fare car on most routes. The gamble isn't cheap; it's mispriced.
Solo, hand luggage, flexible ticket, three hours of margin, midday flight: take the coach with our blessing — the downside is small and the odds are long. The maths only turns when deadlines tighten.
Early flights (see the shared gap), strict bag-drops, non-refundable packages, groups, connections: each one raises the downside or the miss-probability. Stack two or more and the “cheap” option is the expensive one wearing a disguise.
Move fast: rescue fees and same-day rebooking are cheapest before and immediately after the flight closes — the running-late playbook covers the sequence. A prompt phone call has saved more holidays than any sprint through a terminal.
A fixed fare, a named driver and a pickup timed to bag-drop — the premium that makes the £400 downside irrelevant.