Flight OddsAA3879 ORD → BUF
American Airlines · Chicago, IL to Buffalo, NY · 24 flights observed, 2025-07-02 to 2025-08-04 · 474 mi
AA3879 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
71%
Median delay
+5 min
90th percentile
+43 min
Cancellation rate
0%
How often is AA3879 on time?
Across 24 flights on ORD → BUF from 2025-07-02 to 2025-08-04, AA3879 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +43 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 | 17 | 71% |
| 16-30 min | 2 | 8% |
| 31-60 min | 3 | 13% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 21 | 71% | +11 min |
| 2025-08 | 3 | 67% | +49 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | No data | — |
| Wed | 5 | 60% |
| Thu | 5 | 60% |
| Fri | 4 | 50% |
| Sat | No data | — |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…