Flight OddsAA403 ORD → BUF
American Airlines · Chicago, IL to Buffalo, NY · 76 flights observed, 2025-07-01 to 2026-06-30 · 474 mi
AA403 covers more than one route in the data window — the stats below are for ORD → BUF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
38%
Median delay
+28 min
90th percentile
+141 min
Cancellation rate
3%
How often is AA403 on time?
Across 76 flights on ORD → BUF from 2025-07-01 to 2026-06-30, AA403 arrived within 15 minutes of schedule 38% of the time. The median arrival delay was +28 min, and the worst 10% of flights arrived +141 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 28 | 38% |
| 16-30 min | 12 | 16% |
| 31-60 min | 13 | 18% |
| 61-120 min | 12 | 16% |
| 2+ hrs | 9 | 12% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 32% | +88 min |
| 2025-08 | 4 | 100% | -4 min |
| 2026-05 | 11 | 36% | +33 min |
| 2026-06 | 28 | 36% | +39 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 27% |
| Tue | 11 | 55% |
| Wed | 9 | 11% |
| Thu | 10 | 20% |
| Fri | 11 | 45% |
| Sat | 11 | 55% |
| Sun | 11 | 45% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…