35 active days
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Tracked flight number
DL257
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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3,602 mi avg per flight
7 hr 21 min average
Average across flights included in analytics
2 aircraft types
Tracked activity
Aug 20 – Sep 24, 2026 · 35 active days
Flights35
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Observed route footprint
Routes tracked as DL257
Directional airport pairings in Aug 20 – Sep 24, 2026.
| Route | Flights | Active days | Tail numbers | Tracked distance | Observed | First observed | Last observed |
|---|---|---|---|---|---|---|---|
| 35 | 35 | 0 | 126,066 mi | 257 hr 19 min | Aug 20, 2026, 2:37 PM UTC | Sep 23, 2026, 9:08 PM UTC |
Observed tail number assignments
Tail numbers tracked as DL257
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| A339 | 4 | 1 | 14,035 mi | Aug 23, 2026, 1:53 PM UTC | Aug 31, 2026, 8:02 PM UTC | |
| A339 | 3 | 1 | 10,758 mi | Sep 11, 2026, 1:32 PM UTC | Sep 18, 2026, 8:35 PM UTC | |
| A339 | 3 | 1 | 10,731 mi | Sep 3, 2026, 12:57 PM UTC | Sep 16, 2026, 8:36 PM UTC | |
| A339 | 2 | 1 | 7,114 mi | Sep 1, 2026, 12:58 PM UTC | Sep 21, 2026, 9:07 PM UTC | |
| A339 | 2 | 1 | 7,123 mi | Sep 7, 2026, 12:53 PM UTC | Sep 9, 2026, 8:22 PM UTC | |
Observed aircraft types
Aircraft types tracked as DL257
Observed flights grouped by aircraft designator and matched to the aircraft reference catalog.
Observation log
Flight observations
Latest 100 flights for DL257 within Aug 20 – Sep 24, 2026
| Confidence | Route | Tail number | Aircraft | First observed | Last observed | Observed | Tracked distance |
|---|---|---|---|---|---|---|---|
| High · 100 | A339 | Sep 23, 2026, 1:35 PM UTC | Sep 23, 2026, 9:08 PM UTC | 7 hr 33 min | 3,656 mi | ||
| High · 100 | A339 | Sep 22, 2026, 2:46 PM UTC | Sep 22, 2026, 10:09 PM UTC | 7 hr 23 min | 3,574 mi | ||
| High · 100 |