| 2024-09-05 | Paperless means of entry |
| 2023-03-30 | Digital boarding pass, e.g. |
| 2020-11-01 | Paperless airplane reservation |
| 2019-04-19 | One might be sent to a passenger's phone |
| 2015-07-07 | Convenience at the airport |
| 2014-05-01 | Purchase on delta.com, e.g. |
| 2014-02-17 | Printout taken to the airport, maybe |
| 2009-03-29 | Modern traveler's purchase |
| 2007-10-26 | Terminal timesaver |
| 2007-05-18 | Airport printout |
| 2006-08-04 | Modern travel convenience |
| 2005-04-15 | Air travel expediter |
| 2005-03-27 | Airline convenience |
| 2005-01-22 | Contemporary travel convenience |