34 active days
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Tracked flight number
AS391
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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2,121 mi avg per flight
4 hr 44 min average
Average across flights included in analytics
4 aircraft types
Tracked activity
Aug 20 – Sep 24, 2026 · 34 active days
Flights34
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Observed route footprint
Routes tracked as AS391
Directional airport pairings in Aug 20 – Sep 24, 2026.
| Route | Flights | Active days | Tail numbers | Tracked distance | Observed | First observed | Last observed |
|---|---|---|---|---|---|---|---|
| 34 | 34 | 0 | 72,118 mi | 160 hr 41 min | Aug 20, 2026, 9:23 PM UTC | Sep 23, 2026, 1:47 AM UTC |
Observed tail number assignments
Tail numbers tracked as AS391
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| B39M | 2 | 1 | 4,203 mi | Sep 13, 2026, 9:27 PM UTC | Sep 21, 2026, 1:33 AM UTC | |
| B739 | 2 | 1 | 4,244 mi | Sep 1, 2026, 9:24 PM UTC | Sep 17, 2026, 1:56 AM UTC | |
| B739 | 1 | 1 | 2,090 mi | Sep 22, 2026, 9:22 PM UTC | Sep 23, 2026, 1:47 AM UTC | |
| B739 | 1 | 1 | 2,108 mi | Sep 21, 2026, 9:09 PM UTC | Sep 22, 2026, 1:30 AM UTC | |
| B39M | 1 | 1 | 2,104 mi | Sep 19, 2026, 9:27 PM UTC | Sep 20, 2026, 2:06 AM UTC | |
Observed aircraft types
Aircraft types tracked as AS391
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 |
|---|---|---|---|---|---|---|---|---|
| B739 | Boeing 737-900 | 18 | 52.9% | 17 | 38,224 mi | 1 | Aug 21, 2026, 9:12 PM UTC | Sep 23, 2026, 1:47 AM UTC |
| B39M | Boeing 737 MAX 9 | 14 | 41.2% | 13 | 29,575 mi | 1 | Aug 20, 2026, 9:23 PM UTC | Sep 21, 2026, 1:33 AM UTC |
| B738 | Boeing 737-800 | 1 | 2.9% | 1 | 2,164 mi | 1 | Sep 9, 2026, 9:02 PM UTC | Sep 10, 2026, 2:05 AM UTC |
| B38M | Boeing 737 MAX 8 | 1 | 2.9% | 1 | 2,155 mi | 1 | Sep 4, 2026, 9:24 PM UTC | Sep 5, 2026, 1:58 AM UTC |
Observation log
Flight observations
Latest 100 flights for AS391 within Aug 20 – Sep 24, 2026
| Confidence | Route | Tail number | Aircraft | First observed | Last observed | Observed | Tracked distance |
|---|---|---|---|---|---|---|---|
| Limited · 84 | Route unverified | B739 | Sep 23, 2026, 9:08 PM UTC | Sep 24, 2026, 2:04 AM UTC | 4 hr 56 min | 2,139 mi | |
| High · 100 | B739 | Sep 22, 2026, 9:22 PM UTC | Sep 23, 2026, 1:47 AM UTC | 4 hr 25 min | 2,090 mi | ||
| High · 100 |