United UA821 Flight Status Tracker
UA821 is a international flight operated by United. UA821 is departing from San Francisco (SFO), United States and arriving at Mexico City (MEX), Mexico. The flight distance is about 3028.07 km or 1881.56 miles and flight time is 4 hours 20 minutes. Get the latest status of UA821 / UAL821 here.
Update on Dec. 7, 2025, 2:57 p.m.
Lastest Status
Departed On time
| SFO | MEX |
Distance: 3028.07 km / 1881.56 miles or 1635.03 nautical miles.
Departure San Francisco International Airport
Actual Departure: 22:36
Scheduled Departure: 22:45
Departure Terminal : I Gate None
Arrival Mexico City International Airport
Estimate Arrival: 19:12
Scheduled Arrival: 19:25
Arrival Terminal : 1 Gate None
Flight UA821 detail information
| Type | International Flight |
| Route | Departure San Francisco (SFO), United States and arriving at Mexico City (MEX), Mexico |
| Airlines | United (UA) |
| Aircraft | 319 |
| Flight Duration | 4 hours 20 minutes |
| Flight Distance | 3028.07 km /1881.56 miles |
| Operating Days | Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday |
Find more flight status
UA821 Airports
| Departures |
|---|
| Airport: San Francisco International Airport, United States |
| ICAO Code: SFO |
| SFO Current time: 08:37 07-Dec-2025 |
| Arrivals |
| Airport: Mexico City International Airport, Mexico |
| ICAO Code: MEX |
| MEX Current time: 10:37 07-Dec-2025 |