Flight OddsUA1335 ORD → BUF
United Airlines · Chicago, IL to Buffalo, NY · 215 flights observed, 2025-07-01 to 2026-06-30 · 474 mi
UA1335 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
63%
Median delay
+4 min
90th percentile
+94 min
Cancellation rate
1%
How often is UA1335 on time?
Across 215 flights on ORD → BUF from 2025-07-01 to 2026-06-30, UA1335 arrived within 15 minutes of schedule 63% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +94 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 132 | 63% |
| 16-30 min | 23 | 11% |
| 31-60 min | 20 | 9% |
| 61-120 min | 21 | 10% |
| 2+ hrs | 15 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 26 | 38% | +40 min |
| 2025-08 | 28 | 50% | +53 min |
| 2025-09 | 24 | 79% | +5 min |
| 2025-12 | 14 | 79% | +51 min |
| 2026-01 | 5 | 80% | -10 min |
| 2026-02 | 16 | 69% | +7 min |
| 2026-03 | 30 | 67% | +31 min |
| 2026-04 | 28 | 61% | +27 min |
| 2026-05 | 11 | 91% | -2 min |
| 2026-06 | 29 | 55% | +39 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 32 | 63% |
| Tue | 31 | 68% |
| Wed | 31 | 58% |
| Thu | 30 | 70% |
| Fri | 31 | 55% |
| Sat | 25 | 76% |
| Sun | 31 | 52% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…