E-tickets in the airline industry were devised in about 1994,[1] and have now largely replaced the older multi-layered paper ticketing systems.
Producing a print-out of an e-ticket itinerary receipt may be required to enter the terminal of some airports or to satisfy immigration regulations in some countries.
Several websites assist people holding e-tickets to check in online in advance of the twenty-four-hour airline restriction.
This way, airlines could consistently expose and capture such fees at time of booking through travel reservation systems, rather than having to surprise passengers with them at check-in.
As part of the IATA Simplifying the Business initiative, the association instituted a program to switch the industry to 100% electronic ticketing.
[5] As of June 1, 2008 paper tickets can no longer be issued on neutral stock by agencies reporting to their local BSP.
The industry was unable to comply with the IATA mandate and paper tickets remain in circulation as of February 2009.
Mobile tickets are common with operators of US commuter train networks (e.g. MTA LIRR and Metro North) but they are usually only offered on the US version of the App Store and only accept US-issued credit cards as the app's payment page asks the user for the credit card's ZIP code to complete the purchase.
In India, an SMS sent by the Indian Railways, along with a valid proof of identity is considered equivalent to a ticket[7] and also a e-ticket pdf can be downloaded from the IRCTC website or mobile app.
Electronic tickets, or "eTickets" as they are sometimes referred, are often delivered as PDFs or another downloadable format that can be received via email or through a mobile app.