Can a flight booking API let my customers choose their seats before they book?

Yes, a flight booking API can let customers choose seats before they complete a booking, but this depends on the airline, the fare and the information supplied through the API. When seat selection is available, the customer may see a seat map showing which places can be requested and whether an extra charge applies.

Some airlines do not provide a seat map during the booking process. Others allow a seat request but do not guarantee that the chosen seat will remain available until the ticket is issued. An airline may also change the seat later because of an aircraft change or an operational need. The final seat assignment is always controlled by the airline.

Seat choices can also vary by fare. A customer may be able to choose a standard seat with one fare, while another fare may only allow selection after booking or during check in. Seats with extra space, seats near the front and other preferred options may have different conditions or may not be offered through every supplier.

Before offering seat selection on your portal, check which airlines and suppliers support it, when the seat is confirmed, and how any extra charge is shown to the customer.