30 active days
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Tracked flight number
DL551
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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1,505 mi avg per flight
3 hr 0 min average
Average across flights included in analytics
1 aircraft type
Tracked activity
Aug 20 – Sep 24, 2026 · 30 active days
Flights30
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Observed route footprint
Routes tracked as DL551
Directional airport pairings in Aug 20 – Sep 24, 2026.
| Route | Flights | Active days | Tail numbers | Tracked distance | Observed | First observed | Last observed |
|---|---|---|---|---|---|---|---|
| 30 | 30 | 0 | 45,139 mi | 90 hr 3 min | Aug 20, 2026, 12:10 PM UTC | Sep 23, 2026, 3:00 PM UTC |
Observed tail number assignments
Tail numbers tracked as DL551
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| B738 | 2 | 1 | 2,994 mi | Aug 21, 2026, 12:18 PM UTC | Sep 18, 2026, 3:29 PM UTC | |
| B738 | 2 | 1 | 3,009 mi | Aug 27, 2026, 12:16 PM UTC | Sep 17, 2026, 3:37 PM UTC | |
| B738 | 2 | 1 | 2,732 mi | Aug 22, 2026, 12:13 PM UTC | Sep 14, 2026, 3:02 PM UTC | |
| B738 | 2 | 1 | 3,133 mi | Sep 3, 2026, 12:21 PM UTC | Sep 10, 2026, 3:46 PM UTC | |
| B738 | 2 | 1 | 2,970 mi | Sep 2, 2026, 12:06 PM UTC | Sep 8, 2026, 3:14 PM UTC | |
Observed aircraft types
Aircraft types tracked as DL551
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 |
|---|---|---|---|---|---|---|---|---|
| B738 | Boeing 737-800 | 30 | 100.0% | 24 | 45,139 mi | 1 | Aug 20, 2026, 12:10 PM UTC | Sep 23, 2026, 3:00 PM UTC |
Observation log
Flight observations
Latest 100 flights for DL551 within Aug 20 – Sep 24, 2026
| Confidence | Route | Tail number | Aircraft | First observed | Last observed | Observed | Tracked distance |
|---|---|---|---|---|---|---|---|
| High · 100 | B738 | Sep 24, 2026, 12:26 PM UTC | Sep 24, 2026, 3:22 PM UTC | 2 hr 56 min | 1,490 mi | ||
| High · 100 | B738 | Sep 23, 2026, 12:04 PM UTC | Sep 23, 2026, 3:00 PM UTC | 2 hr 56 min | 1,504 mi | ||
| High · 100 |