34 active days
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Tracked flight number
UA121
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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4,072 mi avg per flight
8 hr 6 min average
Average across flights included in analytics
2 aircraft types
Tracked activity
Aug 20 – Sep 24, 2026 · 34 active days
Flights34
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Observed route footprint
Routes tracked as UA121
Directional airport pairings in Aug 20 – Sep 24, 2026.
Observed tail number assignments
Tail numbers tracked as UA121
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| B772 | 4 | 1 | 16,151 mi | Aug 23, 2026, 10:42 AM UTC | Sep 4, 2026, 6:32 PM UTC | |
| B772 | 4 | 1 | 15,988 mi | Aug 20, 2026, 10:57 AM UTC | Aug 31, 2026, 10:55 PM UTC | |
| B772 | 3 | 1 | 12,348 mi | Aug 21, 2026, 10:33 AM UTC | Sep 22, 2026, 6:36 PM UTC | |
| B772 | 2 | 1 | 8,448 mi | Sep 19, 2026, 10:32 AM UTC | Sep 23, 2026, 6:39 PM UTC | |
| B772 | 2 | 2 | 8,332 mi | Aug 22, 2026, 10:29 AM UTC | Sep 21, 2026, 6:51 PM UTC | |
Observed aircraft types
Aircraft types tracked as UA121
Observed flights grouped by aircraft designator and matched to the aircraft reference catalog.
Observation log
Flight observations
Latest 100 flights for UA121 within Aug 20 – Sep 24, 2026
| Confidence | Route | Tail number | Aircraft | First observed | Last observed | Observed | Tracked distance |
|---|---|---|---|---|---|---|---|
| High · 100 | B764 | Sep 24, 2026, 10:54 AM UTC | Sep 24, 2026, 7:05 PM UTC | 8 hr 11 min | 4,011 mi | ||
| High · 100 | B772 | Sep 23, 2026, 10:31 AM UTC | Sep 23, 2026, 6:39 PM UTC | 8 hr 8 min | 4,252 mi | ||
| High · 100 |