Flight OddsUA3998 CLT → IAD
United Airlines · Charlotte, NC to Washington, DC · 99 flights observed, 2025-10-26 to 2026-06-30 · 322 mi
UA3998 covers more than one route in the data window — the stats below are for CLT → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
81%
Median delay
-9 min
90th percentile
+63 min
Cancellation rate
3%
How often is UA3998 on time?
Across 99 flights on CLT → IAD from 2025-10-26 to 2026-06-30, UA3998 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +63 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 78 | 81% |
| 16-30 min | 1 | 1% |
| 31-60 min | 7 | 7% |
| 61-120 min | 5 | 5% |
| 2+ hrs | 5 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 67% | +58 min |
| 2025-11 | 21 | 86% | +8 min |
| 2025-12 | 15 | 93% | -11 min |
| 2026-01 | 5 | 100% | -23 min |
| 2026-04 | 9 | 100% | -14 min |
| 2026-05 | 11 | 82% | +0 min |
| 2026-06 | 29 | 66% | +21 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 18 | 78% |
| Tue | 12 | 100% |
| Wed | 12 | 83% |
| Thu | 13 | 62% |
| Fri | 12 | 83% |
| Sat | 12 | 83% |
| Sun | 17 | 82% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…