ON TIMEBOARD

AA 255 on time

American Airlines 255: New York to Los Angeles at 9:30 a.m. (past 12 months)

On time
76%
362 flights · likely 71–80%
Cancelled
3.3%
of scheduled flights
Typical arrival
−11 min
median vs schedule
When late
+110 min
average delay
Similar flights
77%
AA, same route & hour

About 1 in 4 AA 255 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (24%); 3.3% were cancelled. The typical flight landed 11 minutes early.

AA 255: JFK → LAX

Scheduled to leave New York at 9:30 a.m. local time. Over the past year it arrived on time 76% of the time (362 flights), in line with other AA flights on the route at that hour (77%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 93% on time (30 flights)93SepOct 2025: 87% on time (31 flights)87OctNov 2025: 90% on time (30 flights)90NovDec 2025: 74% on time (31 flights)74DecJan 2026: 59% on time (29 flights)59JanFeb 2026: 57% on time (28 flights)57FebMar 2026: 94% on time (31 flights)94MarApr 2026: 83% on time (30 flights)83AprMay 2026: 57% on time (30 flights)57MayJun 2026: 77% on time (30 flights)77JunJul 2026: 65% on time (31 flights)65JulAug 2026: 71% on time (31 flights)71Aug

By day of week

DayFlightsOn time
Monday5277%
Tuesday5277%
Wednesday5281%
Thursday5267%
Friday5281%
Saturday5267%
Sunday5080%

Why it was late

Late inbound plane 60%Airline (crew, maintenance, ops) 24%Air traffic & airport (NAS) 14%Severe weather 3%

All flights JFK → LAX · Connecting off AA 255? Check the risk

Questions

How often is AA 255 from JFK to LAX late?

American Airlines 255 from New York, NY to Los Angeles, CA arrived 15 or more minutes late, was diverted or was cancelled on 24% of 362 scheduled flights between September 2025 and August 2026. 3.3% 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.