36 active days
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Tracked flight number
UA2129
Analysis window
Aug 20 – Sep 24, 2026
Every derived statistic, daily trend, route, tail number assignment, flight observation, and mapped path below uses this flight-date window.
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2,329 mi avg per flight
4 hr 21 min average
Average across flights included in analytics
3 aircraft types
Tracked activity
Aug 20 – Sep 24, 2026 · 36 active days
Flights36
Aug 20
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Observed route footprint
Routes tracked as UA2129
Directional airport pairings in Aug 20 – Sep 24, 2026.
| Route | Flights | Active days | Tail numbers | Tracked distance | Observed | First observed | Last observed |
|---|---|---|---|---|---|---|---|
| 36 | 36 | 0 | 83,857 mi | 156 hr 37 min | Aug 20, 2026, 4:53 AM UTC | Sep 24, 2026, 9:28 AM UTC |
Observed tail number assignments
Tail numbers tracked as UA2129
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| B39M | 2 | 1 | 4,720 mi | Sep 17, 2026, 5:00 AM UTC | Sep 21, 2026, 9:29 AM UTC | |
| B39M | 2 | 1 | 4,617 mi | Sep 11, 2026, 4:50 AM UTC | Sep 15, 2026, 9:14 AM UTC | |
| B39M | 2 | 1 | 4,721 mi | Aug 26, 2026, 4:55 AM UTC | Aug 31, 2026, 9:57 AM UTC | |
| B39M | 1 | 1 | 2,318 mi | Sep 24, 2026, 4:57 AM UTC | Sep 24, 2026, 9:28 AM UTC | |
| B39M | 1 | 1 | 2,340 mi | Sep 23, 2026, 5:05 AM UTC | Sep 23, 2026, 9:20 AM UTC | |
Observed aircraft types
Aircraft types tracked as UA2129
Observed flights grouped by aircraft designator and matched to the aircraft reference catalog.
| Type | Aircraft name | Flights | Makeup | Tail numbers | Tracked distance | Routes | First observed | Last observed |
|---|---|---|---|---|---|---|---|---|
| B39M | Boeing 737 MAX 9 | 31 | 86.1% | 28 | 72,343 mi | 1 | Aug 20, 2026, 4:53 AM UTC | Sep 24, 2026, 9:28 AM UTC |
| B38M | Boeing 737 MAX 8 | 3 | 8.3% | 3 | 6,931 mi | 1 | Aug 30, 2026, 4:58 AM UTC | Sep 19, 2026, 9:36 AM UTC |
| B739 | Boeing 737-900 | 2 | 5.6% | 2 | 4,583 mi | 1 | Aug 23, 2026, 5:47 AM UTC | Aug 25, 2026, 9:45 AM UTC |
Observation log
Flight observations
Latest 100 flights for UA2129 within Aug 20 – Sep 24, 2026
| Confidence | Route | Tail number | Aircraft | First observed | Last observed | Observed | Tracked distance |
|---|---|---|---|---|---|---|---|
| High · 100 | B39M | Sep 24, 2026, 4:57 AM UTC | Sep 24, 2026, 9:28 AM UTC | 4 hr 31 min | 2,318 mi | ||
| High · 100 | B39M | Sep 23, 2026, 5:05 AM UTC | Sep 23, 2026, 9:20 AM UTC | 4 hr 15 min | 2,340 mi | ||
| High · 100 |