Flight OddsAA4423 BUF → ORD
American Airlines · Buffalo, NY to Chicago, IL · 44 flights observed, 2026-04-07 to 2026-05-20 · 474 mi
AA4423 covers more than one route in the data window — the stats below are for BUF → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
81%
Median delay
-9 min
90th percentile
+60 min
Cancellation rate
5%
How often is AA4423 on time?
Across 44 flights on BUF → ORD from 2026-04-07 to 2026-05-20, AA4423 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +60 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 34 | 81% |
| 16-30 min | 1 | 2% |
| 31-60 min | 3 | 7% |
| 61-120 min | 2 | 5% |
| 2+ hrs | 2 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 22 | 86% | -2 min |
| 2026-05 | 20 | 75% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 7 | 57% |
| Wed | 7 | 86% |
| Thu | 6 | 83% |
| Fri | 5 | 100% |
| Sat | 6 | 83% |
| Sun | 6 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…