UA303
UA303 (United Airlines) is a multi-stop service on 11 routes, busiest Kansas City to Chicago. Of 898 departures recorded from October 2024 to July 2026, 80.9% left on time, according to the US BTS.
- On-time departures80.9%of 898 flights
- Average delay14.5 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.3%
- Legs flown under this number11
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 | 57 | ▲ 83.9% |
| February | 28 | 39 | ▲ 39.3% |
| March | 32 | 55 | ▲ 71.9% |
| April | 30 | 30 | 0.0% |
| May | 41 | 42 | ▲ 2.4% |
| June | 55 | 54 | ▼ 1.8% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 36 | – | – |
| October | 56 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 248 | 308 | ▲ 24.2% |
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 | 89.7% | 75.0% | ▼ 16.4% |
| February | 82.1% | 87.2% | ▲ 6.1% |
| March | 84.4% | 67.3% | ▼ 20.2% |
| April | 76.7% | 85.7% | ▲ 11.8% |
| May | 82.9% | 73.8% | ▼ 11.0% |
| June | 87.3% | 69.8% | ▼ 20.0% |
| July | 87.1% | 69.0% | ▼ 20.8% |
| August | 77.4% | – | – |
| September | 77.8% | – | – |
| October | 69.6% | – | in progress |
| November | 86.7% | – | – |
| December | 83.3% | – | – |
| Year-to-date average (Jan–Jul) | 84.3% | 75.4% | ▼ 10.6% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 3 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 2 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 2 | 9 | ▲ 350.0% |
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 98.7% 886
- Cancelled 1.3% 12
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MCI ORD Kansas City International Airport – Chicago O'Hare International Airport | 647 | 12.5 min | 82.5% | 656 |
| ORD IAH Chicago O'Hare International Airport – George Bush Intercontinental Airport | 1,491 | 25.9 min | 69.4% | 37 |
| ORD EWR Chicago O'Hare International Airport – Newark Liberty International Airport | 1,154 | 26.2 min | 85.7% | 35 |
| ORD BWI Chicago O'Hare International Airport – Baltimore/Washington International Thurgood Marshall Airport | 998 | 25.4 min | 70.6% | 35 |
| ORD SLC Chicago O'Hare International Airport – Salt Lake City International Airport | 2,006 | 15.4 min | 67.7% | 31 |
| ORD LGA Chicago O'Hare International Airport – LaGuardia Airport | 1,177 | -2.2 min | 96.8% | 31 |
| LGA DEN LaGuardia Airport – Denver International Airport | 2,600 | 9.1 min | 77.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 45 | 45 | 97.8% | 0 |
| November 2024 | 78 | 78 | 88.5% | 0 |
| December 2024 | 35 | 35 | 88.6% | 0 |
| January 2025 | 31 | 29 | 89.7% | 2 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 32 | 32 | 84.4% | 0 |
| April 2025 | 30 | 30 | 76.7% | 0 |
| May 2025 | 41 | 41 | 82.9% | 0 |
| June 2025 | 55 | 55 | 87.3% | 0 |
| July 2025 | 31 | 31 | 87.1% | 0 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 36 | 36 | 77.8% | 0 |
| October 2025 | 56 | 56 | 69.6% | 0 |
| November 2025 | 30 | 30 | 86.7% | 0 |
| December 2025 | 31 | 30 | 83.3% | 1 |
| January 2026 | 57 | 56 | 75.0% | 1 |
| February 2026 | 39 | 39 | 87.2% | 0 |
| March 2026 | 55 | 52 | 67.3% | 3 |
| April 2026 | 30 | 28 | 85.7% | 2 |
| May 2026 | 42 | 42 | 73.8% | 0 |
| June 2026 | 54 | 53 | 69.8% | 1 |
| July 2026 | 31 | 29 | 69.0% | 2 |