ON TIMEBOARD

AA 520 on time

American Airlines 520: Dallas to Phoenix at 8:35 a.m. (past 12 months)

On time
80%
182 flights · likely 73–85%
Cancelled
2.2%
of scheduled flights
Typical arrival
−3 min
median vs schedule
When late
+70 min
average delay
Similar flights
78%
AA, same route & hour

About 1 in 5 AA 520 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (20%); 2.2% were cancelled. The typical flight landed 3 minutes early.

AA 520: DFW → PHX

Scheduled to leave Dallas at 8:35 a.m. local time. Over the past year it arrived on time 80% of the time (182 flights), in line with other AA flights on the route at that hour (78%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: 70% on time (30 flights)70AprMay 2025: 77% on time (31 flights)77MayJun 2025: 60% on time (30 flights)60JunJul 2025: 68% on time (31 flights)68JulAug 2025: 55% on time (31 flights)55AugSep 2025: 83% on time (30 flights)83SepOct 2025: too few flights (5 flights)OctApr 2026: 71% on time (24 flights)71AprMay 2026: 74% on time (31 flights)74MayJun 2026: 63% on time (30 flights)63JunJul 2026: 90% on time (31 flights)90JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday2677%
Tuesday2681%
Wednesday2681%
Thursday2688%
Friday2681%
Saturday2677%
Sunday2673%

Why it was late

Late inbound plane 53%Airline (crew, maintenance, ops) 38%Air traffic & airport (NAS) 6%Severe weather 3%

All flights DFW → PHX · Connecting off AA 520? Check the risk

Questions

How often is AA 520 from DFW to PHX late?

American Airlines 520 from Dallas/Fort Worth, TX to Phoenix, AZ arrived 15 or more minutes late, was diverted or was cancelled on 20% of 182 scheduled flights between September 2025 and August 2026. 2.2% 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.