Live tracking not available yet
UA3876 has a schedule in our database but isn't on the airport board right now. Live position data typically appears within a few hours of departure.
Flight Status
Scheduled
Route Info
CUN
Cancún International Airport
Cancún
Scheduled 4:50 PM
SFO
San Francisco International Airport
San Francisco
Scheduled 8:52 PM
6h 2m flight time
Thu
Recent Flights
No flight history yet
History builds as this flight gets tracked
Schedule
Operates
Thu
Departure
4:50 PM
Arrival
8:52 PM
Duration
6h 2m
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Schedule valid
Mar 12 —
Mar 19, 2026