| FlightID | ModeS Hex Code | Registration | Aircraft | Category | Airline/Operator | Callsign | Route | Time Last Seen | Possibly Landed |
|---|---|---|---|---|---|---|---|---|---|
| 4564668 | AB9078 | N844UA | A319 131 (A319) | Jet | United Airlines | UAL2421 | KORD (ORD) to KBWI (BWI) | 2023-12-29 16:41:21 | |
| 4556140 | AB97E6 | N846UA | A319 131 (A319) | Jet | United Airlines | UAL2421 | KIAH (IAH) to KBWI (BWI) | 2023-12-27 15:34:40 | |
| 4552105 | AB19FB | N814UA | A319 131 (A319) | Jet | United Airlines | UAL2421 | KIAH (IAH) to KBWI (BWI) | 2023-12-26 16:05:44 | |
| 4548631 | AB19FB | N814UA | A319 131 (A319) | Jet | United Airlines | UAL2421 | KIAH (IAH) to KBWI (BWI) | 2023-12-25 15:46:37 | |
| 4545732 | AC15D1 | N878UA | A319 132 (A319) | Jet | United Airlines | UAL2421 | KIAH (IAH) to KBWI (BWI) | 2023-12-24 15:51:07 | |
| 4534143 | ABA30B | N849UA | A319 131 (A319) | Jet | United Airlines | UAL2421 | KIAH (IAH) to KBWI (BWI) | 2023-12-21 17:12:02 | |
| 4299215 | A5E44C | N479UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-28 15:41:13 | |
| 4294875 | A5E44C | N479UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-27 16:08:08 | |
| 4289652 | AB942F | N845UA | A319 131 (A319) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-26 15:56:12 | |
| 4284649 | ABA30B | N849UA | A319 131 (A319) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-25 15:55:04 | |
| 4279743 | A61949 | N492UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-24 15:58:32 | |
| 4274556 | AC121A | N877UA | A319 132 (A319) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-23 15:48:23 | |
| 4262975 | A44187 | N37313 | 737MAX 8 (B38M) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-20 22:05:41 | |
| 4261356 | AC55F3 | N894UA | A319 132 (A319) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-20 15:53:41 | |
| 4258391 | A445F0 | N37466 | 737NG 924ER/W (B739) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-19 22:50:56 | |
| 4239015 | A94B51 | N69839 | 737NG 924ER/W (B739) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-15 20:49:41 | |
| 4233426 | A5FCEF | N485UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-14 16:02:21 | |
| 4229092 | A4DD51 | N412UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-13 16:06:45 | |
| 4223970 | A51B1A | N428UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KSAN (SAN) to KBWI (BWI) | 2023-10-12 16:02:20 | |
| 4209359 | A57F04 | N453UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KORD (ORD) to KBWI (BWI) | 2023-10-09 15:54:43 | |
| 4206513 | A81006 | N61887 | 737NG 924ER/W (B739) | Jet | United Airlines | UAL2421 | KORD (ORD) to KBWI (BWI) | 2023-10-08 22:12:13 | |
| 4198409 | A44611 | N37474 | 737NG 924ER/W (B739) | Jet | United Airlines | UAL2421 | KORD (ORD) to KBWI (BWI) | 2023-10-06 20:53:06 | |
| 4181159 | A56A18 | N448UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KORD (ORD) to KBWI (BWI) | 2023-10-03 15:48:59 | |
| 4170742 | A5F581 | N483UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KORD (ORD) to KBWI (BWI) | 2023-10-01 16:18:31 | |
| 4166061 | A61949 | N492UA | A320 232 (A320) | Jet | United Airlines | UAL2421 | KORD (ORD) to KBWI (BWI) | 2023-09-30 16:29:01 |