Flight OddsUA4729 BUF → ORD
United Airlines · Buffalo, NY to Chicago, IL · 30 flights observed, 2026-01-06 to 2026-02-11 · 474 mi
UA4729 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
61%
Median delay
+5 min
90th percentile
+178 min
Cancellation rate
7%
How often is UA4729 on time?
Across 30 flights on BUF → ORD from 2026-01-06 to 2026-02-11, UA4729 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +178 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 17 | 61% |
| 16-30 min | 4 | 14% |
| 31-60 min | 1 | 4% |
| 61-120 min | 2 | 7% |
| 2+ hrs | 4 | 14% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 20 | 55% | +66 min |
| 2026-02 | 8 | 75% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 25% |
| Tue | 4 | 100% |
| Wed | 6 | 50% |
| Thu | 5 | 80% |
| Fri | 5 | 40% |
| Sat | No data | — |
| Sun | 4 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…