UA1580
UA1580 (United Airlines) is a multi-stop service on 18 routes, busiest New Orleans to Chicago. Of 527 departures recorded from October 2024 to May 2026, 83.9% left on time, according to the US BTS.
- On-time departures83.9%of 527 flights
- Average delay9.2 min
- May 202640▲ 900.0%vs May 2025
- Cancelled1.1%
- Legs flown under this number18
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 | 13 | 26 | ▲ 100.0% |
| February | 22 | 28 | ▲ 27.3% |
| March | 29 | 31 | ▲ 6.9% |
| April | 60 | 31 | ▼ 48.3% |
| May | 4 | 40 | ▲ 900.0% |
| June | 16 | – | – |
| July | 31 | – | – |
| August | 31 | – | – |
| September | 24 | – | – |
| October | 30 | – | in progress |
| November | 25 | – | – |
| December | 33 | – | – |
| Year to date (Jan–May) | 128 | 156 | ▲ 21.9% |
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 | 100.0% | 80.8% | ▼ 19.2% |
| February | 90.9% | 82.1% | ▼ 9.6% |
| March | 69.0% | 89.7% | ▲ 30.0% |
| April | 81.0% | 90.0% | ▲ 11.1% |
| May | 100.0% | 87.5% | ▼ 12.5% |
| June | 87.5% | – | – |
| July | 77.4% | – | – |
| August | 83.9% | – | – |
| September | 87.5% | – | – |
| October | 83.3% | – | in progress |
| November | 68.0% | – | – |
| December | 75.8% | – | – |
| Year-to-date average (Jan–May) | 88.2% | 86.0% | ▼ 2.5% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 2 | 1 | ▼ 50.0% |
| May | 0 | 0 | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–May) | 3 | 3 | 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 98.9% 521
- Cancelled 1.1% 6
Share of all recorded flights in the period, all legs. · Oct 27, 2024 → May 20, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MSY ORD Louis Armstrong New Orleans International Airport – Chicago O'Hare International Airport | 1,349 | -3.6 min | 91.5% | 61 |
| MYR ORD Myrtle Beach International Airport – Chicago O'Hare International Airport | 1,212 | 16.5 min | 75.9% | 54 |
| MSN ORD Dane County Regional Truax Field – Chicago O'Hare International Airport | 175 | -2.2 min | 94.2% | 53 |
| MEM DEN Frederick W. Smith International Airport – Denver International Airport | 1,401 | -3.2 min | 97.3% | 37 |
| IAH MSP George Bush Intercontinental Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,667 | -1.1 min | 86.5% | 37 |
| SAN IAD San Diego International Airport – Washington Dulles International Airport | 3,618 | 38.0 min | 80.0% | 32 |
| IAD MCO Washington Dulles International Airport – Orlando International Airport | 1,222 | 15.0 min | 78.1% | 32 |
| ORD PHL Chicago O'Hare International Airport – Philadelphia International Airport | 1,088 | 26.9 min | 67.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 5 | 5 | 100.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 18 | 18 | 88.9% | 0 |
| January 2025 | 13 | 12 | 100.0% | 1 |
| February 2025 | 22 | 22 | 90.9% | 0 |
| March 2025 | 29 | 29 | 69.0% | 0 |
| April 2025 | 60 | 58 | 81.0% | 2 |
| May 2025 | 4 | 4 | 100.0% | 0 |
| June 2025 | 16 | 16 | 87.5% | 0 |
| July 2025 | 31 | 31 | 77.4% | 0 |
| August 2025 | 31 | 31 | 83.9% | 0 |
| September 2025 | 24 | 24 | 87.5% | 0 |
| October 2025 | 30 | 30 | 83.3% | 0 |
| November 2025 | 25 | 25 | 68.0% | 0 |
| December 2025 | 33 | 33 | 75.8% | 0 |
| January 2026 | 26 | 26 | 80.8% | 0 |
| February 2026 | 28 | 28 | 82.1% | 0 |
| March 2026 | 31 | 29 | 89.7% | 2 |
| April 2026 | 31 | 30 | 90.0% | 1 |
| May 2026 | 40 | 40 | 87.5% | 0 |