About 1 in 7 UA 347 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (14%); 0.6% were cancelled. The typical flight landed 10 minutes early.
UA 347: DEN → IAD
Scheduled to leave Denver at 1:53 p.m. local time. Over the past year it arrived on time 86% of the time (325 flights), in line with other UA flights on the route at that hour (88%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 47 | 91% |
| Tuesday | 45 | 89% |
| Wednesday | 45 | 96% |
| Thursday | 47 | 87% |
| Friday | 47 | 81% |
| Saturday | 47 | 89% |
| Sunday | 47 | 72% |
Why it was late
All flights DEN → IAD · Connecting off UA 347? Check the risk
UA 347: RNO → DEN
Scheduled to leave Reno at 9:10 a.m. local time. Over the past year it arrived on time 89% of the time (287 flights), in line with other UA flights on the route at that hour (88%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 42 | 88% |
| Tuesday | 41 | 90% |
| Wednesday | 41 | 88% |
| Thursday | 40 | 85% |
| Friday | 41 | 85% |
| Saturday | 40 | 98% |
| Sunday | 42 | 86% |
Why it was late
All flights RNO → DEN · Connecting off UA 347? Check the risk
Questions
How often is UA 347 from DEN to IAD late?
United Airlines 347 from Denver, CO to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 14% of 325 scheduled flights between September 2025 and August 2026. 0.6% were cancelled.
How often is UA 347 from RNO to DEN late?
United Airlines 347 from Reno, NV to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 12% of 287 scheduled flights between September 2025 and August 2026. 0.7% 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.