5 active days
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Tracked flight number
AS1399
Analysis window
Aug 25 – 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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472 mi avg per flight
1 hr 8 min average
Average across flights included in analytics
4 aircraft types
Tracked activity
Aug 25 – Sep 24, 2026 · 5 active days
Flights5
Aug 25
Sep 1
Sep 8
Sep 15
Sep 22
Observed route footprint
Routes tracked as AS1399
Directional airport pairings in Aug 25 – Sep 24, 2026.
| Route | Flights | Active days | Tail numbers | Tracked distance | Observed | First observed | Last observed |
|---|---|---|---|---|---|---|---|
| 5 | 5 | 0 | 2,358 mi | 5 hr 38 min | Aug 25, 2026, 10:06 PM UTC | Sep 22, 2026, 10:55 PM UTC |
Observed tail number assignments
Tail numbers tracked as AS1399
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| B39M | 1 | 1 | 455 mi | Sep 22, 2026, 9:53 PM UTC | Sep 22, 2026, 10:55 PM UTC | |
| B39M | 1 | 1 | 494 mi | Sep 15, 2026, 9:37 PM UTC | Sep 15, 2026, 10:52 PM UTC | |
| B38M | 1 | 1 | 470 mi | Sep 8, 2026, 9:45 PM UTC | Sep 8, 2026, 10:50 PM UTC | |
| B738 | 1 | 1 | 457 mi | Sep 1, 2026, 10:22 PM UTC | Sep 1, 2026, 11:29 PM UTC | |
| B739 | 1 | 1 | 482 mi | Aug 25, 2026, 10:06 PM UTC | Aug 25, 2026, 11:14 PM UTC |
Observed aircraft types
Aircraft types tracked as AS1399
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 | 2 | 40.0% | 2 | 949 mi | 1 | Sep 15, 2026, 9:37 PM UTC | Sep 22, 2026, 10:55 PM UTC |
| B38M | Boeing 737 MAX 8 | 1 | 20.0% | 1 | 470 mi | 1 | Sep 8, 2026, 9:45 PM UTC | Sep 8, 2026, 10:50 PM UTC |
| B738 | Boeing 737-800 | 1 | 20.0% | 1 | 457 mi | 1 | Sep 1, 2026, 10:22 PM UTC | Sep 1, 2026, 11:29 PM UTC |
| B739 | Boeing 737-900 | 1 | 20.0% | 1 | 482 mi | 1 | Aug 25, 2026, 10:06 PM UTC | Aug 25, 2026, 11:14 PM UTC |
Observation log
Flight observations
Latest 100 flights for AS1399 within Aug 25 – Sep 24, 2026