UA1504
UA1504 (United Airlines) is a multi-stop service on 19 routes, busiest New York to Chicago. Of 914 departures recorded from October 2024 to July 2026, 68.9% left on time, according to the US BTS.
- On-time departures68.9%of 914 flights
- Average delay24.8 min
- July 202627▼ 55.7%vs July 2025
- Cancelled2.0%
- Legs flown under this number19
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 | 56 | 41 | ▼ 26.8% |
| February | 56 | 30 | ▼ 46.4% |
| March | 36 | 34 | ▼ 5.6% |
| April | 30 | 31 | ▲ 3.3% |
| May | 52 | 39 | ▼ 25.0% |
| June | 35 | 26 | ▼ 25.7% |
| July | 61 | 27 | ▼ 55.7% |
| August | 44 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 48 | – | – |
| December | 48 | – | – |
| Year to date (Jan–Jul) | 326 | 228 | ▼ 30.1% |
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 | 78.6% | 67.5% | ▼ 14.1% |
| February | 72.7% | 86.7% | ▲ 19.2% |
| March | 69.4% | 59.4% | ▼ 14.5% |
| April | 63.3% | 65.5% | ▲ 3.5% |
| May | 61.5% | 73.7% | ▲ 19.7% |
| June | 65.7% | 63.6% | ▼ 3.2% |
| July | 48.3% | 66.7% | ▲ 37.9% |
| August | 69.8% | – | – |
| September | 76.7% | – | – |
| October | 74.2% | – | in progress |
| November | 58.3% | – | – |
| December | 60.9% | – | – |
| Year-to-date average (Jan–Jul) | 65.7% | 69.0% | ▲ 5.1% |
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 | 1 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 2 | – |
| April | 0 | 2 | – |
| May | 0 | 1 | – |
| June | 0 | 4 | – |
| July | 1 | 3 | ▲ 200.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 2 | 13 | ▲ 550.0% |
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 98.0% 896
- Cancelled 2.0% 18
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 |
|---|---|---|---|---|
| LGA ORD LaGuardia Airport – Chicago O'Hare International Airport | 1,177 | 33.7 min | 66.1% | 340 |
| ORD SAT Chicago O'Hare International Airport – San Antonio International Airport | 1,677 | 23.7 min | 69.2% | 182 |
| ORD CVG Chicago O'Hare International Airport – Cincinnati Northern Kentucky International Airport | 425 | 9.0 min | 82.4% | 68 |
| BOS ORD Boston Logan International Airport – Chicago O'Hare International Airport | 1,391 | 14.1 min | 66.1% | 56 |
| ORD ATL Chicago O'Hare International Airport – Hartsfield Jackson Atlanta International Airport | 976 | 41.5 min | 52.9% | 51 |
| DJT ORD President Donald J. Trump International Airport – Chicago O'Hare International Airport | 1,844 | 16.5 min | 70.8% | 48 |
| ORD SNA Chicago O'Hare International Airport – John Wayne Orange County International Airport | 2,772 | 19.1 min | 58.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 92.5% | 0 |
| November 2024 | 29 | 29 | 51.7% | 0 |
| December 2024 | 29 | 29 | 89.7% | 0 |
| January 2025 | 56 | 56 | 78.6% | 0 |
| February 2025 | 56 | 55 | 72.7% | 1 |
| March 2025 | 36 | 36 | 69.4% | 0 |
| April 2025 | 30 | 30 | 63.3% | 0 |
| May 2025 | 52 | 52 | 61.5% | 0 |
| June 2025 | 35 | 35 | 65.7% | 0 |
| July 2025 | 61 | 60 | 48.3% | 1 |
| August 2025 | 44 | 43 | 69.8% | 1 |
| September 2025 | 60 | 60 | 76.7% | 0 |
| October 2025 | 62 | 62 | 74.2% | 0 |
| November 2025 | 48 | 48 | 58.3% | 0 |
| December 2025 | 48 | 46 | 60.9% | 2 |
| January 2026 | 41 | 40 | 67.5% | 1 |
| February 2026 | 30 | 30 | 86.7% | 0 |
| March 2026 | 34 | 32 | 59.4% | 2 |
| April 2026 | 31 | 29 | 65.5% | 2 |
| May 2026 | 39 | 38 | 73.7% | 1 |
| June 2026 | 26 | 22 | 63.6% | 4 |
| July 2026 | 27 | 24 | 66.7% | 3 |