Flight
UAL3974
Flight history and live tracking for UAL3974, operated by United Airlines. Recent flights from the PlaneTrack independent receiver network, with departure and arrival times, aircraft used, and a real-time position feed.
Route
| Airline | United Airlines |
| Observed route | WSSS → KSFO |
Flight history 3 flights since Sep 2025
| Date | From | To | Dep | Arr | Duration | Aircraft |
|---|---|---|---|---|---|---|
| No flights in the last 30 days. | ||||||
Earlier flights (3) - back to 2025-09-29
| Date | From | To | Dep | Arr | Duration | Aircraft |
|---|---|---|---|---|---|---|
| 2026-06-23 | WSSS | KSFO | 12:22 +08 | 12:20 PDT | 14h 58m | A254FF |
| 2026-04-21estimated | WSSS | KSFO | 12:22 +08 | 10:52 PDT | 13h 30m | N2142U |
| 2025-09-29 | WSSS | ? | 00:00 +08 | 19:01Z | 3h 01m | A2551A |
Times are local to each airport. Hover for UTC. Flights marked estimated were completed with route prediction or partial coverage; partial records have a confirmed departure but no reliable arrival fix.
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Data access
Live positions and 365-day history for this flight are available through the PlaneTrack API (commercial use from $29/month) and as one-off CSV extracts from our own receiver network archive. Questions: [email protected]