| FlightID | ModeS Hex Code | Registration | Aircraft | Category | Airline/Operator | Callsign | Route | Time Last Seen | Possibly Landed |
|---|---|---|---|---|---|---|---|---|---|
| 999910478 | A528D6 | N431WN | 737NG 7H4/W (B737) | Jet | Southwest Airlines | SWA1821 | KDEN (DEN) to KEWR (EWR) | 2019-05-25 01:29:54 | |
| 99997759228 | AA7E3A | N7752B | 737NG 7BD/W (B737) | Jet | Southwest Airlines | SWA1821 | KDEN (DEN) to KEWR (EWR) | 2019-05-17 22:54:22 | |
| 99997708781 | A20471 | N229WN | 737NG 7H4/W (B737) | Jet | Southwest Airlines | SWA1821 | KDEN (DEN) to KEWR (EWR) | 2019-05-08 00:59:40 | |
| 99997617817 | A4B9C7 | N403WN | 737NG 7H4/W (B737) | Jet | Southwest Airlines | SWA1821 | KDEN (DEN) to KEWR (EWR) | 2019-04-18 23:05:29 | |
| 99997570084 | A5C31B | N470WN | 737NG 7H4/W (B737) | Jet | Southwest Airlines | SWA1821 | KDEN (DEN) to KEWR (EWR) | 2019-04-08 23:06:10 | |
| 99997157734 | ABE075 | N8643A | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA1821 | KPHL (PHL) to KPHX (PHX) | 2019-01-03 18:22:48 | |
| 99997117506 | ABE872 | N8667D | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA1821 | KPHL (PHL) to KPHX (PHX) | 2018-12-24 18:08:56 | |
| 99997056524 | ABC4BE | N8577Z | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA1821 | KOAK (OAK) to KPHL (PHL) | 2018-12-11 18:04:06 | |
| 99997039162 | ABBCA1 | N8552Z | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA1821 | KOAK (OAK) to KPHL (PHL) | 2018-12-07 18:10:59 | |
| 99997034218 | ABC3C6 | N8570W | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA1821 | KOAK (OAK) to KPHL (PHL) | 2018-12-06 18:13:44 | |
| 99997024328 | ABBCA1 | N8552Z | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA1821 | KOAK (OAK) to KPHL (PHL) | 2018-12-04 17:52:12 | |
| 99997019377 | ABB995 | N8547V | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA1821 | KOAK (OAK) to KPHL (PHL) | 2018-12-03 18:09:12 | |
| 99993555149 | ABEB31 | N8670A | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA1821 | KOAK (OAK) to KPHL (PHL) | 2016-11-19 23:13:15 |