Flight OddsAA4904 BUF → ORD
American Airlines · Buffalo, NY to Chicago, IL · 4 flights observed, 2025-07-12 to 2025-08-02 · 474 mi
AA4904 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
50%
Median delay
+34 min
90th percentile
+134 min
Cancellation rate
0%
How often is AA4904 on time?
Across 4 flights on BUF → ORD from 2025-07-12 to 2025-08-02, AA4904 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +34 min, and the worst 10% of flights arrived +134 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 2 | 50% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 25% |
| 2+ hrs | 1 | 25% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 3 | 33% | +76 min |
| 2025-08 | 1 | 100% | -9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | No data | — |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 4 | 50% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…