Flight OddsUA3439 CHS → IAD
United Airlines · Charleston, SC to Washington, DC · 22 flights observed, 2025-12-18 to 2026-05-16 · 442 mi
UA3439 covers more than one route in the data window — the stats below are for CHS → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
-5 min
90th percentile
+18 min
Cancellation rate
0%
How often is UA3439 on time?
Across 22 flights on CHS → IAD from 2025-12-18 to 2026-05-16, UA3439 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +18 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 19 | 86% |
| 16-30 min | 1 | 5% |
| 31-60 min | 0 | 0% |
| 61-120 min | 2 | 9% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 79% | +7 min |
| 2026-01 | 5 | 100% | +1 min |
| 2026-05 | 3 | 100% | -12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | 2 | 50% |
| Wed | 2 | 100% |
| Thu | 3 | 100% |
| Fri | 3 | 100% |
| Sat | 6 | 100% |
| 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…