A320 seating layout
Most A320 economy cabins use a simple 3-3 layout with one aisle. Seat letters usually run A, B, C on the left and D, E, F on the right. A and F are window seats, C and D are aisle seats, and B and E are middle seats. Exit-row spacing is often better, but airline-specific rules, tray-table placement, and recline restrictions can vary.