Live tracking not available yet
UA3872 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
SFO
San Francisco International Airport
San Francisco
Scheduled 1:20 AM
DEN
Denver International Airport
Denver
Scheduled 4:46 AM
2h 26m flight time
Wed
Recent Flights
No flight history yet
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Schedule
Operates
Wed
Departure
1:20 AM
Arrival
4:46 AM
Duration
2h 26m
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Schedule valid
Mar 18 —
Mar 25, 2026