34 active days
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Tracked flight number
SQ421
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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2,599 mi avg per flight
4 hr 56 min average
Average across flights included in analytics
1 aircraft type
Tracked activity
Aug 20 – Sep 24, 2026 · 34 active days
Flights34
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Observed route footprint
Routes tracked as SQ421
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 | 88,363 mi | 167 hr 33 min | Aug 20, 2026, 7:07 AM UTC | Sep 23, 2026, 12:08 PM UTC |
Observed tail number assignments
Tail numbers tracked as SQ421
Open a tail number for its complete tracked profile.
| Tail number | Type | Flights | Routes | Tracked distance | First observed | Last observed |
|---|---|---|---|---|---|---|
| B78X | 4 | 1 | 10,614 mi | Aug 29, 2026, 6:55 AM UTC | Sep 18, 2026, 12:30 PM UTC | |
| B78X | 4 | 1 | 10,504 mi | Aug 21, 2026, 7:06 AM UTC | Sep 17, 2026, 11:24 AM UTC | |
| B78X | 3 | 1 | 7,713 mi | Aug 26, 2026, 6:32 AM UTC | Sep 22, 2026, 11:34 AM UTC | |
| B78X | 3 | 1 | 7,603 mi | Aug 30, 2026, 7:19 AM UTC | Sep 19, 2026, 11:34 AM UTC | |
| B78X | 2 | 1 | 5,157 mi | Sep 6, 2026, 6:46 AM UTC | Sep 16, 2026, 11:32 AM UTC | |
Observed aircraft types
Aircraft types tracked as SQ421
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 |
|---|---|---|---|---|---|---|---|---|
| B78X | Boeing 787-10 Dreamliner | 34 | 100.0% | 18 | 88,363 mi | 1 | Aug 20, 2026, 7:07 AM UTC | Sep 23, 2026, 12:08 PM UTC |
Observation log
Flight observations
Latest 100 flights for SQ421 within Aug 20 – Sep 24, 2026
| Confidence | Route | Tail number | Aircraft | First observed | Last observed | Observed | Tracked distance |
|---|---|---|---|---|---|---|---|
| High · 100 | B78X | Sep 24, 2026, 6:45 AM UTC | Sep 24, 2026, 11:27 AM UTC | 4 hr 42 min | 2,575 mi | ||
| High · 100 | B78X | Sep 23, 2026, 7:19 AM UTC | Sep 23, 2026, 12:08 PM UTC | 4 hr 49 min | 2,581 mi | ||
| High · 100 |