UAL821
- Flight number
- UAL821
- Airline
- United Airlines (UAL)
- Route
- Suvarnabhumi Airport (BKK/VTBS) → Hong Kong International Airport (HKG/VHHH)
- Observed take-off
- Observed landing
- Aircraft
- N30PX · GULFSTREAM G280
- Positions recorded
- 597
Source: observations by the map.flights community network of ADS-B receivers; times in UTC.