Flight OddsUA4986 IAD → MDT
United Airlines · Washington, DC to Harrisburg, PA · 274 flights observed, 2025-07-01 to 2026-06-30 · 93 mi
On-time arrival
86%
Median delay
-10 min
90th percentile
+36 min
Cancellation rate
1%
How often is UA4986 on time?
Across 274 flights on IAD → MDT from 2025-07-01 to 2026-06-30, UA4986 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +36 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 | 234 | 86% |
| 16-30 min | 8 | 3% |
| 31-60 min | 8 | 3% |
| 61-120 min | 11 | 4% |
| 2+ hrs | 10 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 19 | 84% | +19 min |
| 2025-08 | 12 | 83% | +5 min |
| 2025-09 | 18 | 94% | -6 min |
| 2025-10 | 27 | 96% | -7 min |
| 2025-11 | 9 | 100% | -10 min |
| 2025-12 | 27 | 63% | +23 min |
| 2026-01 | 28 | 75% | +29 min |
| 2026-02 | 24 | 79% | +4 min |
| 2026-03 | 31 | 87% | +18 min |
| 2026-04 | 30 | 93% | -7 min |
| 2026-05 | 24 | 96% | +3 min |
| 2026-06 | 22 | 95% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 39 | 85% |
| Tue | 42 | 81% |
| Wed | 41 | 85% |
| Thu | 44 | 91% |
| Fri | 47 | 94% |
| Sat | 23 | 87% |
| Sun | 35 | 80% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…