Live tracking not available yet
AC3973 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
TUS
Tucson International Airport
Tucson
Scheduled 6:00 AM
DEN
Denver International Airport
Denver
Scheduled 8:55 AM
1h 55m flight time
Sat
Operated by United Airlines
Recent Flights
No flight history yet
History builds as this flight gets tracked
Schedule
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Upcoming
Sat, Mar 21
Sat, Mar 28
Sat, Apr 4
Sat, Apr 11
Schedule valid
Apr 04 —
Apr 25, 2026