29 active days
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Tracked flight number
UA638
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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1,170 mi avg per flight
2 hr 23 min average
Average across flights included in analytics
5 aircraft types
Tracked activity
Aug 20 – Sep 24, 2026 · 29 active days
Flights30
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Observed route footprint
Routes tracked as UA638
Directional airport pairings in Aug 20 – Sep 24, 2026.
Observed tail number assignments
Tail numbers tracked as UA638
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| B737 | 2 | 1 | 1,462 mi | Sep 17, 2026, 5:59 PM UTC | Sep 21, 2026, 5:45 PM UTC | |
| B737 | 2 | 1 | 1,342 mi | Sep 10, 2026, 4:05 PM UTC | Sep 11, 2026, 5:53 PM UTC | |
| B737 | 1 | 1 | 689 mi | Sep 23, 2026, 4:11 PM UTC | Sep 23, 2026, 5:50 PM UTC | |
| B737 | 1 | 1 | 687 mi | Sep 22, 2026, 4:04 PM UTC | Sep 22, 2026, 5:42 PM UTC | |
| B38M | 1 | 1 | 675 mi | Sep 18, 2026, 4:07 PM UTC | Sep 18, 2026, 5:40 PM UTC | |
Observed aircraft types
Aircraft types tracked as UA638
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 | 16 | 53.3% | 16 | 22,127 mi | 2 | Aug 20, 2026, 10:30 PM UTC | Sep 13, 2026, 5:48 PM UTC |
| B737 | Boeing 737-700 | 9 | 30.0% | 7 | 6,192 mi | 1 | Sep 9, 2026, 4:12 PM UTC | Sep 23, 2026, 5:50 PM UTC |
| B38M | Boeing 737 MAX 8 | 2 | 6.7% | 2 | 2,200 mi | 2 | Aug 27, 2026, 10:23 PM UTC | Sep 18, 2026, 5:40 PM UTC |
| B39M | Boeing 737 MAX 9 | 2 | 6.7% | 2 | 3,090 mi | 1 | Aug 31, 2026, 10:29 PM UTC | Sep 6, 2026, 1:31 AM UTC |
| B739 | Boeing 737-900 | 1 | 3.3% | 1 | 1,495 mi | 1 | Aug 23, 2026, 11:43 PM UTC | Aug 24, 2026, 2:30 AM UTC |
Observation log
Flight observations
Latest 100 flights for UA638 within Aug 20 – Sep 24, 2026