| FlightID | ModeS Hex Code | Registration | Aircraft | Category | Airline/Operator | Callsign | Route | Time Last Seen | Possibly Landed |
|---|---|---|---|---|---|---|---|---|---|
| 121818 | A29391 | N265WN | 737NG 7H4/W (B737) | Jet | Southwest Airlines | SWA2521 | KBWI (BWI) to KMCI (MCI) | 2024-05-08 22:34:30 | |
| 30489 | ABB579 | N8534Z | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA2521 | KBWI (BWI) to KMCI (MCI) | 2024-04-18 21:51:57 | |
| 9999370206 | ACFA3D | N935WN | 737NG 7H4/W (B737) | Jet | Southwest Airlines | SWA2521 | KDAL (DAL) to KBOS (BOS) | 2019-08-01 14:02:13 | |
| 9999353648 | A620F5 | N494WN | 737NG 7H4/W (B737) | Jet | Southwest Airlines | SWA2521 | KDAL (DAL) to KBOS (BOS) | 2019-07-29 14:03:51 | |
| 9999240857 | AAB39A | N789SW | 737NG 7H4/W (B737) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2019-07-08 13:59:37 | |
| 9999146414 | AA231C | N752SW | 737NG 7H4/W (B737) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2019-06-20 14:45:34 | |
| 99997166190 | AA96E2 | N7812G | 737NG 76N/W (B737) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2019-01-05 19:15:09 | |
| 99997075859 | AAAD6D | N7874B | 737NG 7Q8/W (B737) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2018-12-15 19:07:29 | |
| 99997043354 | AA7B10 | N7746C | 737NG 7BD/W (B737) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2018-12-08 19:16:26 | |
| 99996830261 | AA735A | N7724A | 737NG 7BD/W (B737) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2018-10-23 07:39:22 | |
| 99996811050 | AA7757 | N7736A | 737NG 7BD/W (B737) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2018-10-19 07:42:12 | |
| 99996790161 | AA72D3 | N7720F | 737NG 7BD/W (B737) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2018-10-15 07:54:53 | |
| 99996157325 | ABAAA8 | N8507C | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2018-06-19 18:08:06 | |
| 99996099277 | ABEF98 | N8685B | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA2521 | KPHX (PHX) to KSEA (SEA) | 2018-06-08 16:37:28 | |
| 99994145182 | ABE4DB | N8658A | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-24 07:38:01 | |
| 99994128179 | ABA9E7 | N8501V | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-20 09:10:30 | |
| 99994127953 | ABA9E7 | N8501V | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-20 07:58:17 | |
| 99994118521 | ABE075 | N8643A | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-18 07:31:27 | |
| 99994113864 | ABAD6C | N8510E | 737NG 800/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-17 07:56:02 | |
| 99994102204 | ABF025 | N8689C | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-14 07:40:43 | |
| 99994097599 | AB6339 | N8328A | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-13 09:20:01 | |
| 99994097190 | AB6339 | N8328A | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-13 07:38:14 | |
| 99994092777 | ABE3C8 | N8650F | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-12 09:17:53 | |
| 99994092445 | ABE3C8 | N8650F | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-12 07:34:48 | |
| 99994088076 | ABD8A5 | N8620H | 737NG 8H4/W (B738) | Jet | Southwest Airlines | SWA2521 | KEWR (EWR) to KMDW (MDW) | 2017-04-11 09:17:46 |