Live tracking not available yet
UA321 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
PHL
Philadelphia International Airport
Philadelphia
TD Gate D9 Scheduled 6:30 AM
Actual 6:30 AM
ORD
Chicago O'Hare International Airport
Chicago
T1 Gate B14 Scheduled 8:00 AM
Actual 8:00 AM
Baggage claim 5
2h 30m flight time
Mon Thu Fri Sat Sun
Recent Flights
Last 13 observedMar 18
Wed
ORD
PHX
Dep 09:13:00
(actual 10:48:00)
A21N
Boarding
Mar 17
Tue
ORD
PHX
Dep 10:36:00
(actual 11:21:00)
A21N
Boarding
Mar 16
Mon
ORD
PHX
Dep 10:36:00
(actual 11:12:00)
A21N
Boarding
Mar 15
Sun
ORD
PHX
Dep 09:13:00
(actual 10:00:00)
A21N
Boarding
Mar 14
Sat
ORD
PHX
Dep 09:13:00
(actual 09:37:00)
A21N
Boarding
Mar 13
Fri
ORD
PHX
Dep 10:29:00
(actual 10:59:00)
32Q
Boarding
Mar 12
Thu
ORD
PHX
Dep 09:20:00
(actual 09:56:00)
32Q
Boarding
Mar 11
Wed
ORD
PHX
Dep 09:20:00
(actual 09:41:00)
32Q
Boarding
Mar 10
Tue
ORD
PHX
Dep 09:20:00
(actual 09:45:00)
32Q
Boarding
Mar 09
Mon
ORD
PHX
Dep 09:20:00
(actual 09:35:00)
32Q
Boarding
Mar 08
Sun
ORD
PHX
Dep 09:20:00
(actual 09:50:00)
32Q
Boarding
Mar 07
Sat
ORD
PHX
Dep 09:20:00
(actual 09:42:00)
32Q
Boarding
Mar 06
Fri
ORD
PHX
Dep 09:20:00
(actual 11:42:00)
32Q
Boarding
Schedule
Operates
Mon Thu Fri Sat Sun
Departure
6:30 AM
Arrival
8:00 AM
Duration
2h 30m
Aircraft
Boeing 737 MAX 8
Terminal
TD
T1
Gate
D9
B14
Actual
06:30
08:00
Baggage
Carousel 5
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Upcoming
Fri, Mar 20
Sat, Mar 21
Sun, Mar 22
Mon, Mar 23
Thu, Mar 26
Fri, Mar 27
Schedule valid
Mar 19 —
Mar 28, 2026