But then you add the charge for debit cards, hold luggage, priority boarding, seat assignment, check-in and sarnies.

Reservations were not needed, seat assignments were not given, and initially no check-in was required and no boarding passes were issued.

These ancillary fees include those for checking luggage, buying food and drinks on board, obtaining advance seat assignments, and more.

The inclusion of meals and seat assignments came at the expense of raising the base fares to almost double what it was when it launched.