UA1816
UA1816 (United Airlines) is a multi-stop service on 8 routes, busiest Denver to Tucson. Of 594 departures recorded from October 2024 to May 2026, 69.1% left on time, according to the US BTS.
- On-time departures69.1%of 594 flights
- Average delay22.4 min
- May 202620▼ 35.5%vs May 2025
- Cancelled1.5%
- Legs flown under this number8
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 4 | ▼ 87.1% |
| February | 28 | 17 | ▼ 39.3% |
| March | 33 | 31 | ▼ 6.1% |
| April | 60 | 30 | ▼ 50.0% |
| May | 31 | 20 | ▼ 35.5% |
| June | 30 | – | – |
| July | 61 | – | – |
| August | 49 | – | – |
| September | 24 | – | – |
| October | 5 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–May) | 183 | 102 | ▼ 44.3% |
according to the US BTS · October 2024 → May 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.9% | 75.0% | ▼ 10.6% |
| February | 78.6% | 82.4% | ▲ 4.8% |
| March | 63.6% | 67.7% | ▲ 6.4% |
| April | 64.4% | 96.7% | ▲ 50.1% |
| May | 74.2% | 73.7% | ▼ 0.7% |
| June | 48.3% | – | – |
| July | 33.3% | – | – |
| August | 54.2% | – | – |
| September | 66.7% | – | – |
| October | 80.0% | – | in progress |
| November | 89.3% | – | – |
| December | 67.7% | – | – |
| Year-to-date average (Jan–May) | 72.9% | 79.1% | ▲ 8.4% |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 1 | – |
| June | 1 | – | – |
| July | 4 | – | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–May) | 1 | 1 | 0.0% |
according to the US BTS · October 2024 → May 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 98.5% 585
- Cancelled 1.5% 9
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 20, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN TUS Denver International Airport – Tucson International Airport | 1,029 | 10.9 min | 78.5% | 200 |
| OMA DEN Eppley Airfield – Denver International Airport | 758 | 37.8 min | 58.6% | 174 |
| PIT DEN Pittsburgh International Airport – Denver International Airport | 2,071 | 6.8 min | 79.0% | 77 |
| DEN EWR Denver International Airport – Newark Liberty International Airport | 2,576 | 63.4 min | 33.3% | 48 |
| SFO DEN San Francisco International Airport – Denver International Airport | 1,553 | 14.1 min | 67.6% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 29 | 29 | 82.8% | 0 |
| December 2024 | 31 | 31 | 80.7% | 0 |
| January 2025 | 31 | 31 | 83.9% | 0 |
| February 2025 | 28 | 28 | 78.6% | 0 |
| March 2025 | 33 | 33 | 63.6% | 0 |
| April 2025 | 60 | 59 | 64.4% | 1 |
| May 2025 | 31 | 31 | 74.2% | 0 |
| June 2025 | 30 | 29 | 48.3% | 1 |
| July 2025 | 61 | 57 | 33.3% | 4 |
| August 2025 | 49 | 48 | 54.2% | 1 |
| September 2025 | 24 | 24 | 66.7% | 0 |
| October 2025 | 5 | 5 | 80.0% | 0 |
| November 2025 | 29 | 28 | 89.3% | 1 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 4 | 4 | 75.0% | 0 |
| February 2026 | 17 | 17 | 82.4% | 0 |
| March 2026 | 31 | 31 | 67.7% | 0 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 20 | 19 | 73.7% | 1 |