34 active days
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Tracked flight number
AS4
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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2,404 mi avg per flight
4 hr 31 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 AS4
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 | 81,720 mi | 153 hr 23 min | Aug 20, 2026, 3:11 PM UTC | Sep 23, 2026, 7:42 PM UTC |
Observed tail number assignments
Tail numbers tracked as AS4
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| B738 | 3 | 1 | 7,260 mi | Aug 30, 2026, 3:07 PM UTC | Sep 9, 2026, 9:31 PM UTC | |
| B38M | 2 | 1 | 4,857 mi | Sep 16, 2026, 3:14 PM UTC | Sep 21, 2026, 7:54 PM UTC | |
| B738 | 2 | 1 | 4,845 mi | Sep 3, 2026, 3:22 PM UTC | Sep 11, 2026, 7:52 PM UTC | |
| B738 | 2 | 1 | 4,747 mi | Aug 21, 2026, 3:10 PM UTC | Aug 31, 2026, 7:45 PM UTC | |
| B738 | 2 | 1 | 4,804 mi | Aug 22, 2026, 3:08 PM UTC | Aug 26, 2026, 7:59 PM UTC | |
Observed aircraft types
Aircraft types tracked as AS4
Observed flights grouped by aircraft designator and matched to the aircraft reference catalog.
Observation log
Flight observations
Latest 100 flights for AS4 within Aug 20 – Sep 24, 2026
| Confidence | Route | Tail number | Aircraft | First observed | Last observed | Observed | Tracked distance |
|---|---|---|---|---|---|---|---|
| High · 100 | B738 | Sep 23, 2026, 3:14 PM UTC | Sep 23, 2026, 7:42 PM UTC | 4 hr 28 min | 2,389 mi | ||
| High · 100 | B38M | Sep 22, 2026, 3:21 PM UTC | Sep 22, 2026, 8:01 PM UTC | 4 hr 39 min | 2,374 mi | ||
| High · 100 |