About 1 in 5 UA 4259 flights from Columbia arrived 15+ minutes late, diverted or cancelled over the past year (21%); 3.1% were cancelled. The typical flight landed 9 minutes early.
UA 4259: CAE → IAD
Scheduled to leave Columbia at 7:45 p.m. local time, operated by CommutAir as C5 4259. Over the past year it arrived on time 79% of the time (256 flights), in line with other UA flights on the route at that hour (78%). Last seen in the data Aug 31, 2026.
Usually United Airlines's last flight of the day from Columbia to Washington (100% of days). United Airlines's last CAE–IAD flight was cancelled 3.4% of the time, against 1.1% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 10:31 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 41 | 78% |
| Tuesday | 31 | 84% |
| Wednesday | 32 | 88% |
| Thursday | 40 | 75% |
| Friday | 41 | 78% |
| Saturday | 31 | 74% |
| Sunday | 40 | 75% |
Why it was late
All flights CAE → IAD · Connecting off UA 4259? Check the risk
Questions
How often is UA 4259 from CAE to IAD late?
United Airlines 4259 from Columbia, SC to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 21% of 256 scheduled flights between September 2025 and August 2026. 3.1% 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.