Flight OddsUA4274 IAD → DAY
United Airlines · Washington, DC to Dayton, OH · 339 flights observed, 2025-07-01 to 2026-06-30 · 367 mi
UA4274 covers more than one route in the data window — the stats below are for IAD → DAY, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-6 min
90th percentile
+50 min
Cancellation rate
3%
How often is UA4274 on time?
Across 339 flights on IAD → DAY from 2025-07-01 to 2026-06-30, UA4274 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +50 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 | 258 | 79% |
| 16-30 min | 17 | 5% |
| 31-60 min | 26 | 8% |
| 61-120 min | 15 | 5% |
| 2+ hrs | 12 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 21 | 48% | +38 min |
| 2025-08 | 27 | 70% | +15 min |
| 2025-09 | 30 | 93% | -8 min |
| 2025-10 | 31 | 87% | -2 min |
| 2025-11 | 23 | 70% | +3 min |
| 2025-12 | 29 | 76% | +17 min |
| 2026-01 | 29 | 86% | -2 min |
| 2026-02 | 27 | 85% | 0 min |
| 2026-03 | 31 | 77% | +31 min |
| 2026-04 | 26 | 88% | +6 min |
| 2026-05 | 29 | 72% | +17 min |
| 2026-06 | 25 | 80% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 82% |
| Tue | 52 | 77% |
| Wed | 48 | 75% |
| Thu | 48 | 85% |
| Fri | 51 | 75% |
| Sat | 30 | 83% |
| Sun | 48 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…