Flight OddsUA4958 GSP → IAD
United Airlines · Greer, SC to Washington, DC · 314 flights observed, 2025-07-01 to 2026-06-30 · 384 mi
On-time arrival
90%
Median delay
-12 min
90th percentile
+12 min
Cancellation rate
1%
How often is UA4958 on time?
Across 314 flights on GSP → IAD from 2025-07-01 to 2026-06-30, UA4958 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +12 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 | 280 | 90% |
| 16-30 min | 8 | 3% |
| 31-60 min | 8 | 3% |
| 61-120 min | 8 | 3% |
| 2+ hrs | 6 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 59% | +40 min |
| 2025-08 | 23 | 91% | -10 min |
| 2025-09 | 23 | 100% | -13 min |
| 2025-10 | 31 | 100% | -11 min |
| 2025-11 | 30 | 93% | -7 min |
| 2025-12 | 31 | 87% | +4 min |
| 2026-01 | 28 | 93% | -8 min |
| 2026-02 | 27 | 96% | -12 min |
| 2026-03 | 29 | 93% | -13 min |
| 2026-04 | 1 | 100% | -18 min |
| 2026-05 | 30 | 90% | -4 min |
| 2026-06 | 30 | 90% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 46 | 89% |
| Tue | 47 | 96% |
| Wed | 47 | 91% |
| Thu | 48 | 90% |
| Fri | 47 | 89% |
| Sat | 35 | 89% |
| Sun | 40 | 88% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…