UA451
UA451 (United Airlines) is a multi-stop service on 26 routes, busiest Chicago to Columbus. Of 740 departures recorded from October 2024 to July 2026, 85.5% left on time, according to the US BTS.
- On-time departures85.5%of 740 flights
- Average delay7.6 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.4%
- Legs flown under this number26
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 | 27 | 31 | ▲ 14.8% |
| February | 26 | 28 | ▲ 7.7% |
| March | 47 | 31 | ▼ 34.0% |
| April | 30 | 30 | 0.0% |
| May | 32 | 31 | ▼ 3.1% |
| June | 55 | 30 | ▼ 45.5% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 248 | 212 | ▼ 14.5% |
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 | 80.8% | 83.9% | ▲ 3.8% |
| February | 80.8% | 92.9% | ▲ 15.0% |
| March | 80.9% | 83.9% | ▲ 3.7% |
| April | 93.3% | 100.0% | ▲ 7.1% |
| May | 59.4% | 77.4% | ▲ 30.4% |
| June | 90.7% | 89.7% | ▼ 1.2% |
| July | 87.1% | 87.1% | 0.0% |
| August | 71.0% | – | – |
| September | 93.3% | – | – |
| October | 90.3% | – | in progress |
| November | 100.0% | – | – |
| December | 80.0% | – | – |
| Year-to-date average (Jan–Jul) | 81.8% | 87.8% | ▲ 7.3% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 1 | 0.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 1 | ▼ 50.0% |
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 99.6% 737
- Cancelled 0.4% 3
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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 88.0% | 0 |
| November 2024 | 59 | 59 | 84.8% | 0 |
| December 2024 | 44 | 44 | 86.4% | 0 |
| January 2025 | 27 | 26 | 80.8% | 1 |
| February 2025 | 26 | 26 | 80.8% | 0 |
| March 2025 | 47 | 47 | 80.9% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 32 | 32 | 59.4% | 0 |
| June 2025 | 55 | 54 | 90.7% | 1 |
| July 2025 | 31 | 31 | 87.1% | 0 |
| August 2025 | 31 | 31 | 71.0% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 30 | 100.0% | 0 |
| December 2025 | 30 | 30 | 80.0% | 0 |
| January 2026 | 31 | 31 | 83.9% | 0 |
| February 2026 | 28 | 28 | 92.9% | 0 |
| March 2026 | 31 | 31 | 83.9% | 0 |
| April 2026 | 30 | 30 | 100.0% | 0 |
| May 2026 | 31 | 31 | 77.4% | 0 |
| June 2026 | 30 | 29 | 89.7% | 1 |
| July 2026 | 31 | 31 | 87.1% | 0 |