UA331
UA331 (United Airlines) is a multi-stop service on 13 routes, busiest Denver to Salt Lake City. Of 327 departures recorded from October 2024 to March 2026, 80.3% left on time, according to the US BTS.
- On-time departures80.3%of 327 flights
- Average delay14.5 min
- March 202628▼ 3.4%vs March 2025
- Cancelled0.9%
- Legs flown under this number13
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods9 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 37 | 31 | ▼ 16.2% |
| February | 28 | 28 | 0.0% |
| March | 29 | 28 | ▼ 3.4% |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 6 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Mar) | 94 | 87 | ▼ 7.4% |
according to the US BTS · October 2024 → March 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods9 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 73.0% | 93.6% | ▲ 28.2% |
| February | 67.9% | 92.6% | ▲ 36.4% |
| March | 75.9% | 85.2% | ▲ 12.3% |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 93.1% | – | – |
| December | 74.2% | – | – |
| Year-to-date average (Jan–Mar) | 72.2% | 90.4% | ▲ 25.2% |
according to the US BTS · October 2024 → March 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → March 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods9 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 1 | – |
| March | 0 | 1 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Mar) | 0 | 2 |
according to the US BTS · October 2024 → March 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.1% 324
- Cancelled 0.9% 3
Share of all recorded flights in the period, all legs. · Oct 27, 2024 → Mar 28, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN SLC Denver International Airport – Salt Lake City International Airport | 628 | 10.1 min | 80.4% | 56 |
| EWR JAX Newark Liberty International Airport – Jacksonville International Airport | 1,321 | 4.6 min | 86.5% | 37 |
| DEN CID Denver International Airport – The Eastern Iowa Airport | 1,112 | -1.1 min | 94.4% | 37 |
| DEN OMA Denver International Airport – Eppley Airfield | 758 | -4.4 min | 94.4% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 5 | 5 | 100.0% | 0 |
| November 2024 | 30 | 30 | 83.3% | 0 |
| December 2024 | 44 | 44 | 65.9% | 0 |
| January 2025 | 37 | 37 | 73.0% | 0 |
| February 2025 | 28 | 28 | 67.9% | 0 |
| March 2025 | 29 | 29 | 75.9% | 0 |
| October 2025 | 6 | 6 | 100.0% | 0 |
| November 2025 | 30 | 29 | 93.1% | 1 |
| December 2025 | 31 | 31 | 74.2% | 0 |
| January 2026 | 31 | 31 | 93.6% | 0 |
| February 2026 | 28 | 27 | 92.6% | 1 |
| March 2026 | 28 | 27 | 85.2% | 1 |