Flight OddsUA4253 IAD → SCE
United Airlines · Washington, DC to State College, PA · 364 flights observed, 2025-07-01 to 2026-06-30 · 132 mi
On-time arrival
85%
Median delay
-7 min
90th percentile
+27 min
Cancellation rate
1%
How often is UA4253 on time?
Across 364 flights on IAD → SCE from 2025-07-01 to 2026-06-30, UA4253 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +27 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 | 308 | 85% |
| 16-30 min | 19 | 5% |
| 31-60 min | 13 | 4% |
| 61-120 min | 11 | 3% |
| 2+ hrs | 10 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 68% | +26 min |
| 2025-08 | 31 | 90% | -1 min |
| 2025-09 | 30 | 97% | -7 min |
| 2025-10 | 31 | 97% | -1 min |
| 2025-11 | 29 | 79% | +14 min |
| 2025-12 | 30 | 87% | -1 min |
| 2026-01 | 30 | 77% | +3 min |
| 2026-02 | 28 | 86% | -5 min |
| 2026-03 | 31 | 84% | -4 min |
| 2026-04 | 30 | 93% | +1 min |
| 2026-05 | 30 | 80% | +18 min |
| 2026-06 | 30 | 87% | +0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 79% |
| Tue | 53 | 79% |
| Wed | 51 | 90% |
| Thu | 52 | 88% |
| Fri | 51 | 84% |
| Sat | 52 | 90% |
| Sun | 50 | 86% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…