2 links have been added on this idea.
  1. Smaller cheaper airports should do this. Wouldn’t take much for someone to make a site that pulls empty seats information and lists them by airport so folk can book one when they arrive for a random holiday.

  2. Looks like none of the main airlines discount chartered flights, which is a shame. Surprised they don’t go out of their way to sell empty seats, especially when they could just have an online booking terminal at the airport.