flight Aircraft
N21129
EMBRAER ERJ-145XR
Operated by UNITED AIRLINES INC
- Tail number
- N21129
- Type
- E45X
- Mode-S
- A1BFF9
Not currently tracked · last seen 6h ago
- Flights observed
- 261 showing last 50
- Avg flight time
- 1h 4m
- Typical route
- HSV → IAD
- Last seen
- 6h ago
Last known area
Recent flights last 50
| Date | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|
| 2026-05-30 | IAD → ALB | May 30, 12:55 UTC | May 30, 13:55 UTC | 1h 0m |
| 2026-05-29 | PWM → IAD | May 29, 23:55 UTC | May 30, 01:00 UTC | 1h 5m |
| 2026-05-29 | PWM → IAD | May 29, 23:53 UTC | May 30, 01:05 UTC | 1h 12m |
| 2026-05-29 | IAD → GSP | May 29, 22:05 UTC | May 29, 23:00 UTC | 55m |
| 2026-05-29 | IAD → GSP | May 29, 21:58 UTC | May 29, 23:00 UTC | 1h 2m |
| 2026-05-29 | HSV → IAD | May 29, 18:05 UTC | May 29, 19:40 UTC | 1h 35m |
| 2026-05-29 | HSV → IAD | May 29, 18:09 UTC | May 29, 19:39 UTC | 1h 30m |
| 2026-05-29 | IAH → HSV | May 29, 15:30 UTC | May 29, 16:55 UTC | 1h 25m |
| 2026-05-29 | PWM → IAD | May 29, 12:35 UTC | May 29, 13:40 UTC | 1h 5m |
| 2026-05-28 | DEN → DRO | May 28, 21:55 UTC | May 28, 22:50 UTC | 55m |
| 2026-05-28 | DEN → DRO | May 28, 21:59 UTC | May 28, 23:19 UTC | 1h 20m |
| 2026-05-28 | ORF → IAD | May 28, 19:20 UTC | May 28, 20:20 UTC | 1h 0m |
| 2026-05-28 | IAH → GPT | May 28, 17:30 UTC | May 28, 18:25 UTC | 55m |
| 2026-05-28 | IAH → GPT | May 28, 17:13 UTC | May 28, 18:23 UTC | 1h 10m |
| 2026-05-28 | AMA → IAH | May 28, 14:15 UTC | May 28, 15:30 UTC | 1h 15m |
| 2026-05-28 | IAH → AMA | May 28, 02:15 UTC | May 28, 03:20 UTC | 1h 5m |
| 2026-05-27 | LCH → IAH | May 27, 19:25 UTC | May 27, 19:45 UTC | 20m |
| 2026-05-27 | IAH → CRP | May 27, 17:40 UTC | May 27, 17:55 UTC | 15m |
| 2026-05-27 | IAH → CRP | May 27, 17:47 UTC | May 27, 18:04 UTC | 17m |
| 2026-05-25 | TUL → IGM | May 25, 15:25 UTC | May 25, 17:55 UTC | 2h 30m |
| 2026-05-25 | TUL → IGM | May 25, 15:16 UTC | May 25, 17:36 UTC | 2h 20m |
| 2026-05-23 | BTV → IAD | May 23, 17:05 UTC | May 23, 18:10 UTC | 1h 5m |
| 2026-05-23 | BTV → IAD | May 23, 17:04 UTC | May 23, 18:10 UTC | 1h 6m |
| 2026-05-23 | IAD → PVD | May 23, 14:40 UTC | May 23, 15:30 UTC | 50m |
| 2026-05-23 | IAD → ORF | May 23, 12:50 UTC | May 23, 13:30 UTC | 40m |
| 2026-05-23 | ROA → IAD | May 23, 10:25 UTC | May 23, 11:10 UTC | 45m |
| 2026-05-23 | IAD → ROA | May 23, 02:55 UTC | May 23, 03:40 UTC | 45m |
| 2026-05-23 | IAH → CRP | May 23, 00:10 UTC | May 23, 00:55 UTC | 45m |
| 2026-05-23 | IAH → CRP | May 23, 00:01 UTC | May 23, 00:48 UTC | 47m |
| 2026-05-22 | IAH → BTR | May 22, 22:10 UTC | May 22, 22:45 UTC | 35m |
| 2026-05-22 | IAD → DAY | May 22, 19:05 UTC | May 22, 20:10 UTC | 1h 5m |
| 2026-05-22 | IAD → ROC | May 22, 17:10 UTC | May 22, 17:50 UTC | 40m |
| 2026-05-22 | MOB → IAH | May 22, 14:35 UTC | May 22, 15:40 UTC | 1h 5m |
| 2026-05-22 | IAD → SYR | May 22, 12:40 UTC | May 22, 13:45 UTC | 1h 5m |
| 2026-05-22 | IAD → BTV | May 22, 02:45 UTC | May 22, 04:05 UTC | 1h 20m |
| 2026-05-22 | DEN → XNA | May 22, 00:25 UTC | May 22, 01:20 UTC | 55m |
| 2026-05-21 | IAD → BTV | May 21, 22:45 UTC | May 21, 23:05 UTC | 20m |
| 2026-05-21 | IAD → BDL | May 21, 21:00 UTC | May 21, 21:15 UTC | 15m |
| 2026-05-21 | HSV → IAD | May 21, 18:05 UTC | May 21, 19:40 UTC | 1h 35m |
| 2026-05-21 | IAH → HSV | May 21, 15:40 UTC | May 21, 17:05 UTC | 1h 25m |
| 2026-05-21 | HSV → IAH | May 21, 12:10 UTC | May 21, 13:45 UTC | 1h 35m |
| 2026-05-21 | CVG → ROA | May 21, 04:10 UTC | May 21, 06:05 UTC | 1h 55m |
| 2026-05-21 | IAD → ITH | May 21, 02:25 UTC | May 21, 03:00 UTC | 35m |
| 2026-05-20 | MHT → IAD | May 20, 22:30 UTC | May 20, 23:05 UTC | 35m |
| 2026-05-20 | MHT → IAD | May 20, 19:10 UTC | May 20, 20:50 UTC | 1h 40m |
| 2026-05-20 | IAD → MHT | May 20, 16:40 UTC | May 20, 17:50 UTC | 1h 10m |
| 2026-05-20 | IAD → MHT | May 20, 16:40 UTC | May 20, 17:59 UTC | 1h 19m |
| 2026-05-20 | HSV → IAD | May 20, 14:05 UTC | May 20, 15:15 UTC | 1h 10m |
| 2026-05-19 | IAD → TYS | May 19, 22:35 UTC | May 19, 23:40 UTC | 1h 5m |
| 2026-05-19 | IAD → HSV | May 19, 19:05 UTC | May 19, 20:25 UTC | 1h 20m |
Specifications
| Registration | N21129 |
| Aircraft type | EMBRAER ERJ-145XR (E45X) |
| Operator | UNITED AIRLINES INC |
| Mode-S code | A1BFF9 · 50337771 (octal) |
Looking for transponder-level data? View the Mode-S A1BFF9 page for country allocation, callsign history, and ADS-B signal details.
N21129 frequently asked
What type of aircraft is N21129?
N21129 is a EMBRAER ERJ-145XR (ICAO type code E45X).
Who operates N21129?
N21129 is operated by UNITED AIRLINES INC.
What is the Mode-S transponder code for N21129?
N21129 broadcasts on Mode-S (ICAO 24-bit) address A1BFF9 (octal 50337771). View the transponder page.
What route does N21129 typically fly?
N21129 most frequently flies between HSV and IAD based on observed flights.
Where is N21129 right now?
N21129 is not currently being tracked; last seen 6h ago.