28 active days
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Tracked flight number
BI421
Analysis window
Aug 21 – 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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833 mi avg per flight
1 hr 43 min average
Average across flights included in analytics
2 aircraft types
Tracked activity
Aug 21 – Sep 24, 2026 · 28 active days
Flights28
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Observed route footprint
Routes tracked as BI421
Directional airport pairings in Aug 21 – Sep 24, 2026.
| Route | Flights | Active days | Tail numbers | Tracked distance | Observed | First observed | Last observed |
|---|---|---|---|---|---|---|---|
| 28 | 28 | 0 | 23,318 mi | 48 hr 9 min | Aug 21, 2026, 1:25 AM UTC | Sep 23, 2026, 3:16 AM UTC |
Observed tail number assignments
Tail numbers tracked as BI421
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| A20N | 6 | 1 | 5,040 mi | Sep 4, 2026, 1:25 AM UTC | Sep 22, 2026, 3:17 AM UTC | |
| A20N | 5 | 1 | 4,161 mi | Aug 30, 2026, 1:23 AM UTC | Sep 20, 2026, 3:09 AM UTC | |
| A20N | 5 | 1 | 4,145 mi | Aug 23, 2026, 1:29 AM UTC | Sep 5, 2026, 3:17 AM UTC | |
| A20N | 4 | 1 | 3,343 mi | Aug 22, 2026, 1:21 AM UTC | Sep 23, 2026, 3:16 AM UTC | |
| A20N | 3 | 1 | 2,488 mi | Aug 21, 2026, 1:25 AM UTC | Aug 29, 2026, 3:24 AM UTC | |
Observed aircraft types
Aircraft types tracked as BI421
Observed flights grouped by aircraft designator and matched to the aircraft reference catalog.
Observation log
Flight observations
Latest 100 flights for BI421 within Aug 21 – Sep 24, 2026