UA1731
UA1731 (United Airlines) is a multi-stop service on 7 routes, busiest Kailua-Kona to Denver. Of 694 departures recorded from October 2024 to July 2026, 87.9% left on time, according to the US BTS.
- On-time departures87.9%of 694 flights
- Average delay6.1 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.0%
- Legs flown under this number7
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 30 | ▼ 3.2% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 212 | 211 | ▼ 0.5% |
according to the US BTS · October 2024 → July 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 periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 87.1% | 93.3% | ▲ 7.2% |
| February | 88.9% | 92.6% | ▲ 4.2% |
| March | 87.1% | 96.8% | ▲ 11.1% |
| April | 93.3% | 93.3% | 0.0% |
| May | 86.7% | 80.7% | ▼ 6.9% |
| June | 86.7% | 66.7% | ▼ 23.1% |
| July | 93.3% | 65.5% | ▼ 29.8% |
| August | 93.6% | – | – |
| September | 90.0% | – | – |
| October | 93.3% | – | in progress |
| November | 96.7% | – | – |
| December | 90.3% | – | – |
| Year-to-date average (Jan–Jul) | 89.0% | 84.1% | ▼ 5.5% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | 1 | 0.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 2 | ▲ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 3 | 0.0% |
according to the US BTS · October 2024 → July 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 99.0% 687
- Cancelled 1.0% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 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 |
|---|---|---|---|---|
| KOA DEN Ellison Onizuka Kona International Airport at Keāhole – Denver International Airport | 5,351 | 1.9 min | 90.8% | 451 |
| LAS EWR Harry Reid International Airport – Newark Liberty International Airport | 3,576 | 26.5 min | 70.3% | 93 |
| SYR ORD Syracuse Hancock International Airport – Chicago O'Hare International Airport | 974 | 6.3 min | 86.5% | 37 |
| ORD DEN Chicago O'Hare International Airport – Denver International Airport | 1,426 | 11.1 min | 89.2% | 37 |
| JAX DEN Jacksonville International Airport – Denver International Airport | 2,325 | -2.2 min | 94.3% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 96.0% | 0 |
| November 2024 | 60 | 60 | 88.3% | 0 |
| December 2024 | 33 | 33 | 75.8% | 0 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 28 | 27 | 88.9% | 1 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 31 | 30 | 86.7% | 1 |
| June 2025 | 30 | 30 | 86.7% | 0 |
| July 2025 | 31 | 30 | 93.3% | 1 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 30 | 93.3% | 1 |
| November 2025 | 30 | 30 | 96.7% | 0 |
| December 2025 | 31 | 31 | 90.3% | 0 |
| January 2026 | 30 | 30 | 93.3% | 0 |
| February 2026 | 28 | 27 | 92.6% | 1 |
| March 2026 | 31 | 31 | 96.8% | 0 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 30 | 66.7% | 0 |
| July 2026 | 31 | 29 | 65.5% | 2 |