Flight OddsUA5427 ORD → BUF
United Airlines · Chicago, IL to Buffalo, NY · 36 flights observed, 2025-10-26 to 2025-12-01 · 474 mi
UA5427 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
73%
Median delay
0 min
90th percentile
+68 min
Cancellation rate
8%
How often is UA5427 on time?
Across 36 flights on ORD → BUF from 2025-10-26 to 2025-12-01, UA5427 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +68 min or later. 8% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 24 | 73% |
| 16-30 min | 2 | 6% |
| 31-60 min | 2 | 6% |
| 61-120 min | 3 | 9% |
| 2+ hrs | 2 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 50% | +26 min |
| 2025-11 | 26 | 81% | +13 min |
| 2025-12 | 1 | 0% | +76 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 50% |
| Tue | 5 | 100% |
| Wed | 5 | 100% |
| Thu | 4 | 75% |
| Fri | 5 | 60% |
| Sat | 4 | 100% |
| Sun | 4 | 25% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…