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Glossary · Air ticketing: GDS & NDC

What is Ticketing time limit?

Ticketing time limit (TTL)

The deadline by which a reservation must be ticketed. It can come from the fare's own rules or be set by the airline after booking; if the ticket is not issued in time, the airline may cancel the seats automatically.

Also called: ticketing deadline, TKTL.

Why it matters

Missed time limits mean lost seats and lost fares. Agencies track them through GDS queues or platform alerts so bookings are paid and ticketed before the deadline.

Related terms

PNR (Passenger Name Record)
The record in a reservation system that holds an itinerary and passenger details for one or more travellers, identified by a unique booking reference. PNRs are…
GDS queue
An electronic work tray inside a GDS where bookings are placed for an agency to act on — for example schedule changes, ticketing deadlines, waitlist clearances or…
Electronic ticket (e-ticket)
The electronic record that proves a passenger has paid for air travel, stored in the airline's system rather than on paper. It carries a 13-digit ticket number whose…
NDC (New Distribution Capability)
An IATA XML-based data standard that lets airlines distribute richer content — ancillaries, branded fares, seat maps and personalised offers — directly to…
BSP (Billing and Settlement Plan)
An IATA system that consolidates the billing and payment between airlines and accredited travel agencies, so an agency settles one statement rather than paying each…

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