UAL857
- Flight number
- UAL857
- Airline
- United Airlines (UAL)
- Route
- San Francisco International Airport (SFO/KSFO) → Shanghai Pudong International Airport (PVG/ZSPD) At least one end of this route is not from our own observation.
- Observed take-off
- Last heard
- Aircraft
- N2138U · BOEING 777-300ER
- Positions recorded
- 245 As of 2026-09-25 21:28 UTC
Source: observations by the map.flights community network of ADS-B receivers; times in UTC.