34 active days
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Tracked flight number
DL421
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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1,788 mi avg per flight
3 hr 47 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 DL421
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 | 60,784 mi | 128 hr 47 min | Aug 20, 2026, 4:47 PM UTC | Sep 23, 2026, 8:18 PM UTC |
Observed tail number assignments
Tail numbers tracked as DL421
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| B752 | 4 | 1 | 7,171 mi | Aug 29, 2026, 6:54 PM UTC | Sep 20, 2026, 8:12 PM UTC | |
| B752 | 4 | 1 | 7,191 mi | Sep 1, 2026, 4:56 PM UTC | Sep 14, 2026, 8:31 PM UTC | |
| B752 | 2 | 1 | 3,532 mi | Sep 10, 2026, 4:41 PM UTC | Sep 22, 2026, 8:24 PM UTC | |
| B752 | 2 | 1 | 3,603 mi | Aug 23, 2026, 5:37 PM UTC | Sep 18, 2026, 8:29 PM UTC | |
| B752 | 2 | 1 | 3,572 mi | Aug 26, 2026, 4:31 PM UTC | Sep 16, 2026, 9:01 PM UTC | |
Observed aircraft types
Aircraft types tracked as DL421
Observed flights grouped by aircraft designator and matched to the aircraft reference catalog.
Observation log
Flight observations
Latest 100 flights for DL421 within Aug 20 – Sep 24, 2026
| Confidence | Route | Tail number | Aircraft | First observed | Last observed | Observed | Tracked distance |
|---|---|---|---|---|---|---|---|
| High · 100 | B752 | Sep 23, 2026, 4:37 PM UTC | Sep 23, 2026, 8:18 PM UTC | 3 hr 41 min | 1,762 mi | ||
| High · 100 | B752 | Sep 22, 2026, 4:36 PM UTC | Sep 22, 2026, 8:24 PM UTC | 3 hr 47 min | 1,773 mi | ||
| High · 100 |