About 1 in 15 AA 4531 flights from Pittsburgh arrived 15+ minutes late, diverted or cancelled over the past year (7%); 0.0% were cancelled. The typical flight landed 12 minutes early.
AA 4531: PIT → RDU
Scheduled to leave Pittsburgh at 8:00 a.m. local time, operated by Republic Airways as YX 4531. Over the past year it arrived on time 93% of the time (250 flights), worse than other AA flights on the route at that hour (96%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 36 | 94% |
| Tuesday | 35 | 97% |
| Wednesday | 35 | 94% |
| Thursday | 36 | 97% |
| Friday | 36 | 92% |
| Saturday | 36 | 94% |
| Sunday | 36 | 83% |
Why it was late
All flights PIT → RDU · Connecting off AA 4531? Check the risk
Questions
How often is AA 4531 from PIT to RDU late?
American Airlines 4531 from Pittsburgh, PA to Raleigh/Durham, NC arrived 15 or more minutes late, was diverted or was cancelled on 7% of 250 scheduled flights between September 2025 and August 2026. 0.0% 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.