About 1 in 6 AA 1203 flights from Charlotte arrived 15+ minutes late, diverted or cancelled over the past year (18%); 3.2% were cancelled. The typical flight landed 8 minutes early.
AA 1203: CLT → BUF
Scheduled to leave Charlotte at 10:22 a.m. local time. Over the past year it arrived on time 82% of the time (221 flights), worse than other AA flights on the route at that hour (86%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 32 | 56% |
| Tuesday | 30 | 80% |
| Wednesday | 30 | 90% |
| Thursday | 34 | 94% |
| Friday | 30 | 80% |
| Saturday | 30 | 90% |
| Sunday | 35 | 86% |
Why it was late
All flights CLT → BUF · Connecting off AA 1203? Check the risk
AA 1203: BUF → CLT
Scheduled to leave Buffalo at 11:54 a.m. local time. Over the past year it arrived on time 77% of the time (220 flights), worse than other AA flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 32 | 53% |
| Tuesday | 30 | 87% |
| Wednesday | 30 | 80% |
| Thursday | 33 | 85% |
| Friday | 30 | 70% |
| Saturday | 30 | 87% |
| Sunday | 35 | 77% |
Why it was late
All flights BUF → CLT · Connecting off AA 1203? Check the risk
Questions
How often is AA 1203 from CLT to BUF late?
American Airlines 1203 from Charlotte, NC to Buffalo, NY arrived 15 or more minutes late, was diverted or was cancelled on 18% of 221 scheduled flights between September 2025 and August 2026. 3.2% were cancelled.
How often is AA 1203 from BUF to CLT late?
American Airlines 1203 from Buffalo, NY to Charlotte, NC arrived 15 or more minutes late, was diverted or was cancelled on 23% of 220 scheduled flights between September 2025 and August 2026. 2.7% 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.