Flight OddsUA4920 DAY → IAD
United Airlines · Dayton, OH to Washington, DC · 130 flights observed, 2025-07-01 to 2025-12-17 · 367 mi
UA4920 covers more than one route in the data window — the stats below are for DAY → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-11 min
90th percentile
+38 min
Cancellation rate
0%
How often is UA4920 on time?
Across 130 flights on DAY → IAD from 2025-07-01 to 2025-12-17, UA4920 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +38 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 | 109 | 84% |
| 16-30 min | 6 | 5% |
| 31-60 min | 7 | 5% |
| 61-120 min | 3 | 2% |
| 2+ hrs | 5 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 81% | +3 min |
| 2025-08 | 28 | 86% | +19 min |
| 2025-09 | 30 | 97% | -15 min |
| 2025-10 | 25 | 80% | +30 min |
| 2025-12 | 16 | 69% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 18 | 72% |
| Tue | 19 | 84% |
| Wed | 18 | 83% |
| Thu | 19 | 79% |
| Fri | 19 | 89% |
| Sat | 19 | 84% |
| Sun | 18 | 94% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…