About 1 in 6 UA 3401 flights from Charleston arrived 15+ minutes late, diverted or cancelled over the past year (16%); 0.8% were cancelled. The typical flight landed 12 minutes early.
UA 3401: CHS → IAD
Scheduled to leave Charleston at 2:47 p.m. local time, operated by Republic Airways as YX 3401. Over the past year it arrived on time 84% of the time (132 flights), better than other UA flights on the route at that hour (79%). Last seen in the data Aug 10, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 19 | — |
| Tuesday | 17 | — |
| Wednesday | 17 | — |
| Thursday | 20 | 90% |
| Friday | 20 | 75% |
| Saturday | 20 | 85% |
| Sunday | 19 | — |
Why it was late
All flights CHS → IAD · Connecting off UA 3401? Check the risk
Questions
How often is UA 3401 from CHS to IAD late?
United Airlines 3401 from Charleston, SC to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 16% of 132 scheduled flights between September 2025 and August 2026. 0.8% 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.