About 1 in 3 UA 1843 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (29%); 0.0% were cancelled. The typical flight landed 3 minutes early.
UA 1843: DEN → CMH
Scheduled to leave Denver at 5:40 p.m. local time. Over the past year it arrived on time 71% of the time (176 flights), in line with other UA flights on the route at that hour (74%). Last seen in the data Aug 31, 2026.
Usually United Airlines's last flight of the day from Denver to Columbus (100% of days). United Airlines's last DEN–CMH flight was cancelled 0.8% of the time, against 0.5% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 9:35 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 26 | 65% |
| Tuesday | 25 | 76% |
| Wednesday | 25 | 60% |
| Thursday | 25 | 80% |
| Friday | 25 | 80% |
| Saturday | 24 | 75% |
| Sunday | 26 | 62% |
Why it was late
All flights DEN → CMH · Connecting off UA 1843? Check the risk
UA 1843: PSP → DEN
Scheduled to leave Palm Springs at 1:30 p.m. local time. Over the past year it arrived on time 71% of the time (155 flights), in line with other UA flights on the route at that hour (72%). Last seen in the data Aug 31, 2026.
Usually United Airlines's last flight of the day from Palm Springs to Denver (66% of days). United Airlines's last PSP–DEN flight was cancelled 0.8% of the time, against 1.0% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 5:30 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 23 | 61% |
| Tuesday | 22 | 82% |
| Wednesday | 22 | 55% |
| Thursday | 22 | 73% |
| Friday | 22 | 77% |
| Saturday | 21 | 76% |
| Sunday | 23 | 74% |
Why it was late
All flights PSP → DEN · Connecting off UA 1843? Check the risk
Questions
How often is UA 1843 from DEN to CMH late?
United Airlines 1843 from Denver, CO to Columbus, OH arrived 15 or more minutes late, was diverted or was cancelled on 29% of 176 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.
How often is UA 1843 from PSP to DEN late?
United Airlines 1843 from Palm Springs, CA to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 29% of 155 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.