Flight OddsUA3487 IAD → CHS
United Airlines · Washington, DC to Charleston, SC · 177 flights observed, 2025-07-01 to 2026-06-30 · 442 mi
UA3487 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
89%
Median delay
-9 min
90th percentile
+20 min
Cancellation rate
1%
How often is UA3487 on time?
Across 177 flights on IAD → CHS from 2025-07-01 to 2026-06-30, UA3487 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +20 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 | 156 | 89% |
| 16-30 min | 9 | 5% |
| 31-60 min | 8 | 5% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 74% | +5 min |
| 2025-08 | 31 | 77% | -1 min |
| 2025-09 | 30 | 93% | -2 min |
| 2025-10 | 25 | 100% | -10 min |
| 2025-12 | 14 | 93% | +13 min |
| 2026-01 | 5 | 100% | -24 min |
| 2026-05 | 11 | 91% | -8 min |
| 2026-06 | 29 | 97% | -9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 92% |
| Tue | 25 | 96% |
| Wed | 24 | 100% |
| Thu | 26 | 77% |
| Fri | 26 | 73% |
| Sat | 26 | 96% |
| Sun | 25 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…