Flight OddsUnited Airlines · Washington, DC to Charlottesville, VA · 237 flights observed, 2025-09-25 to 2026-05-20 · 78 mi
UA4840 covers more than one route in the data window — the stats below are for IAD → CHO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA4840 on time?
Across 237 flights on IAD → CHO from 2025-09-25 to 2026-05-20, UA4840 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +152 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 | 162 | 70% |
| 16-30 min | 9 | 4% |
| 31-60 min | 11 | 5% |
| 61-120 min | 19 | 8% |
| 2+ hrs | 29 | 13% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 6 | 83% | +9 min |
| 2025-10 | 31 | 81% | +3 min |
| 2025-11 | 28 | 82% | +2 min |
| 2025-12 | 29 | 69% | +50 min |
| 2026-01 | 29 | 45% | +123 min |
| 2026-02 | 28 | 93% | +8 min |
| 2026-03 | 29 | 66% | +54 min |
| 2026-04 | 30 | 67% | +86 min |
| 2026-05 | 20 | 55% | +78 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 33 | 70% |
| Tue | 34 | 82% |
| Wed | 33 | 61% |
| Thu | 34 | 79% |
| Fri | 33 | 64% |
| Sat | 32 | 69% |
| Sun | 31 | 68% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…