About 1 in 6 UA 4267 flights from Dayton arrived 15+ minutes late, diverted or cancelled over the past year (18%); 2.1% were cancelled. The typical flight landed 15 minutes early.
UA 4267: DAY → IAD
Scheduled to leave Dayton at 7:43 p.m. local time, operated by CommutAir as C5 4267. Over the past year it arrived on time 82% of the time (242 flights), in line with other UA flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.
Usually United Airlines's last flight of the day from Dayton to Washington (100% of days). United Airlines's last DAY–IAD flight was cancelled 2.2% of the time, against 1.5% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 10:23 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 39 | 82% |
| Tuesday | 36 | 83% |
| Wednesday | 36 | 78% |
| Thursday | 37 | 86% |
| Friday | 38 | 84% |
| Saturday | 17 | — |
| Sunday | 39 | 77% |
Why it was late
All flights DAY → IAD · Connecting off UA 4267? Check the risk
Questions
How often is UA 4267 from DAY to IAD late?
United Airlines 4267 from Dayton, OH to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 18% of 242 scheduled flights between September 2025 and August 2026. 2.1% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.