UA1898
UA1898 (United Airlines) is a multi-stop service on 13 routes, busiest Denver to Chicago. Of 842 departures recorded from October 2024 to July 2026, 77.3% left on time, according to the US BTS.
- On-time departures77.3%of 842 flights
- Average delay17.9 min
- July 202634▼ 45.2%vs July 2025
- Cancelled1.0%
- Legs flown under this number13
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 | 37 | 31 | ▼ 16.2% |
| February | 28 | 41 | ▲ 46.4% |
| March | 31 | 49 | ▲ 58.1% |
| April | 30 | 30 | 0.0% |
| May | 62 | 29 | ▼ 53.2% |
| June | 60 | 22 | ▼ 63.3% |
| July | 62 | 34 | ▼ 45.2% |
| August | 49 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 310 | 236 | ▼ 23.9% |
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 | 67.6% | 93.1% | ▲ 37.8% |
| February | 67.9% | 95.0% | ▲ 40.0% |
| March | 71.0% | 89.6% | ▲ 26.2% |
| April | 66.7% | 96.7% | ▲ 45.0% |
| May | 62.9% | 93.1% | ▲ 48.0% |
| June | 71.7% | 95.5% | ▲ 33.2% |
| July | 55.7% | 91.2% | ▲ 63.6% |
| August | 59.2% | – | – |
| September | 93.3% | – | – |
| October | 77.4% | – | in progress |
| November | 100.0% | – | – |
| December | 70.0% | – | – |
| Year-to-date average (Jan–Jul) | 66.2% | 93.4% | ▲ 41.2% |
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 | 2 | – |
| February | 0 | 1 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 300.0% |
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% 834
- Cancelled 1.0% 8
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN ORD Denver International Airport – Chicago O'Hare International Airport | 1,426 | 34.9 min | 63.9% | 270 |
| BWI IAH Baltimore/Washington International Thurgood Marshall Airport – George Bush Intercontinental Airport | 1,986 | 0.4 min | 95.0% | 206 |
| MSO DEN Missoula Montana Airport – Denver International Airport | 1,092 | 20.9 min | 70.3% | 155 |
| SAN SFO San Diego International Airport – San Francisco International Airport | 719 | 11.7 min | 79.4% | 35 |
| ORD IAH Chicago O'Hare International Airport – George Bush Intercontinental Airport | 1,491 | -3.3 min | 93.8% | 32 |
| IAH MSP George Bush Intercontinental Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,667 | 4.5 min | 87.5% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 75.0% | 0 |
| November 2024 | 29 | 29 | 58.6% | 0 |
| December 2024 | 76 | 75 | 85.3% | 1 |
| January 2025 | 37 | 37 | 67.6% | 0 |
| February 2025 | 28 | 28 | 67.9% | 0 |
| March 2025 | 31 | 31 | 71.0% | 0 |
| April 2025 | 30 | 30 | 66.7% | 0 |
| May 2025 | 62 | 62 | 62.9% | 0 |
| June 2025 | 60 | 60 | 71.7% | 0 |
| July 2025 | 62 | 61 | 55.7% | 1 |
| August 2025 | 49 | 49 | 59.2% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 77.4% | 0 |
| November 2025 | 30 | 29 | 100.0% | 1 |
| December 2025 | 31 | 30 | 70.0% | 1 |
| January 2026 | 31 | 29 | 93.1% | 2 |
| February 2026 | 41 | 40 | 95.0% | 1 |
| March 2026 | 49 | 48 | 89.6% | 1 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 29 | 29 | 93.1% | 0 |
| June 2026 | 22 | 22 | 95.5% | 0 |
| July 2026 | 34 | 34 | 91.2% | 0 |