Flight OddsORD → BUF United Airlines
United Airlines · Chicago, IL to Buffalo, NY · 1,312 flights, 2025-07-01 to 2026-06-30 · aggregated across 57 flight numbers
On-time arrival
73%
Median delay
-2 min
90th percentile
+72 min
Cancellation rate
3%
How on-time is United Airlines from ORD to BUF?
Across every United Airlines flight number on ORD → BUF (1,312 flights, 2025-07-01 to 2026-06-30), 73% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +72 min or later. 3% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 926 | 73% |
| 16-30 min | 111 | 9% |
| 31-60 min | 82 | 6% |
| 61-120 min | 84 | 7% |
| 2+ hrs | 71 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 119 | 76% | +15 min |
| 2025-08 | 119 | 79% | +16 min |
| 2025-09 | 119 | 82% | +4 min |
| 2025-10 | 120 | 78% | +6 min |
| 2025-11 | 105 | 70% | +26 min |
| 2025-12 | 96 | 60% | +36 min |
| 2026-01 | 85 | 66% | +21 min |
| 2026-02 | 84 | 68% | +28 min |
| 2026-03 | 79 | 61% | +33 min |
| 2026-04 | 107 | 65% | +17 min |
| 2026-05 | 122 | 76% | +17 min |
| 2026-06 | 119 | 80% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 188 | 72% |
| Tue | 187 | 74% |
| Wed | 185 | 72% |
| Thu | 189 | 77% |
| Fri | 190 | 68% |
| Sat | 158 | 79% |
| Sun | 177 | 67% |
UA flight numbers on ORD → BUF
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…