Flight OddsUA4331 IAD → CHS
United Airlines · Washington, DC to Charleston, SC · 13 flights observed, 2025-07-02 to 2025-07-30 · 442 mi
UA4331 covers more than one route in the data window — the stats below are for IAD → CHS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
33%
Median delay
+67 min
90th percentile
+252 min
Cancellation rate
8%
How often is UA4331 on time?
Across 13 flights on IAD → CHS from 2025-07-02 to 2025-07-30, UA4331 arrived within 15 minutes of schedule 33% of the time. The median arrival delay was +67 min, and the worst 10% of flights arrived +252 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 | 4 | 33% |
| 16-30 min | 1 | 8% |
| 31-60 min | 1 | 8% |
| 61-120 min | 2 | 17% |
| 2+ hrs | 4 | 33% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 12 | 33% | +148 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | 5 | 20% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 4 | 50% |
| Sun | 3 | 33% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…