seat1a turns an airplane cabin into a live fare ladder

Field notes

The interface models a one-way FRA–SIN cabin with 34 named seats, from 1A through the rear economy rows. Fares begin at $5, rise in $1 steps, and the page assigns rank by fare rather than by booking time or class; 1A is the exception, priced $5 above its current occupant. A repeat visit through the same site is described as stacking the visitor’s fares while charging only the difference.