ON TIMEBOARD

AA 428 on time

American Airlines 428: Philadelphia to Phoenix at 7:00 a.m. (past 12 months)

On time
88%
165 flights · likely 83–93%
Cancelled
0.6%
of scheduled flights
Typical arrival
−2 min
median vs schedule
When late
+28 min
average delay
Similar flights
89%
AA, same route & hour

About 1 in 9 AA 428 flights from Philadelphia arrived 15+ minutes late, diverted or cancelled over the past year (12%); 0.6% were cancelled. The typical flight landed 2 minutes early.

AA 428: PHL → PHX

Scheduled to leave Philadelphia at 7:00 a.m. local time. Over the past year it arrived on time 88% of the time (165 flights), in line with other AA flights on the route at that hour (89%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: 77% on time (30 flights)77AprMay 2025: 90% on time (31 flights)90MayJun 2025: 93% on time (30 flights)93JunJul 2025: 94% on time (31 flights)94JulAug 2025: 84% on time (31 flights)84AugSep 2025: 93% on time (30 flights)93SepOct 2025: 87% on time (31 flights)87OctNov 2025: too few flights (1 flights)NovMay 2026: too few flights (11 flights)MayJun 2026: 70% on time (30 flights)70JunJul 2026: 97% on time (31 flights)97JulAug 2026: 94% on time (31 flights)94Aug

By day of week

DayFlightsOn time
Monday2488%
Tuesday2387%
Wednesday2387%
Thursday2488%
Friday2492%
Saturday2492%
Sunday2387%

Why it was late

Air traffic & airport (NAS) 47%Airline (crew, maintenance, ops) 44%Late inbound plane 10%

All flights PHL → PHX · Connecting off AA 428? Check the risk

Questions

How often is AA 428 from PHL to PHX late?

American Airlines 428 from Philadelphia, PA to Phoenix, AZ arrived 15 or more minutes late, was diverted or was cancelled on 12% of 165 scheduled flights between September 2025 and August 2026. 0.6% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check American Airlines for today's flight. Method.