UA534
UA534 (United Airlines) is a multi-stop service on 9 routes, busiest Chicago to Newark. Of 1,005 departures recorded from October 2024 to July 2026, 71.2% left on time, according to the US BTS.
- On-time departures71.2%of 1,005 flights
- Average delay29.4 min
- July 202631▼ 50.0%vs July 2025
- Cancelled2.0%
- Legs flown under this number9
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 | 36 | ▼ 2.7% |
| February | 28 | 28 | 0.0% |
| March | 57 | 55 | ▼ 3.5% |
| April | 60 | 30 | ▼ 50.0% |
| May | 62 | 31 | ▼ 50.0% |
| June | 60 | 30 | ▼ 50.0% |
| July | 62 | 31 | ▼ 50.0% |
| August | 49 | – | – |
| September | 36 | – | – |
| October | 62 | – | in progress |
| November | 59 | – | – |
| December | 62 | – | – |
| Year to date (Jan–Jul) | 366 | 241 | ▼ 34.2% |
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 | 77.8% | 77.1% | ▼ 0.8% |
| February | 82.1% | 61.5% | ▼ 25.1% |
| March | 77.2% | 64.2% | ▼ 16.9% |
| April | 69.5% | 75.9% | ▲ 9.2% |
| May | 61.3% | 76.7% | ▲ 25.1% |
| June | 73.3% | 60.0% | ▼ 18.2% |
| July | 63.3% | 41.4% | ▼ 34.7% |
| August | 70.2% | – | – |
| September | 71.4% | – | – |
| October | 74.2% | – | in progress |
| November | 75.9% | – | – |
| December | 64.5% | – | – |
| Year-to-date average (Jan–Jul) | 72.1% | 65.2% | ▼ 9.5% |
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 | 1 | 0.0% |
| February | 0 | 2 | – |
| March | 0 | 2 | – |
| April | 1 | 1 | 0.0% |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 2 | 2 | 0.0% |
| August | 2 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 9 | ▲ 125.0% |
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% 985
- Cancelled 2.0% 20
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD EWR Chicago O'Hare International Airport – Newark Liberty International Airport | 1,154 | 44.1 min | 59.4% | 554 |
| PDX ORD Portland International Airport – Chicago O'Hare International Airport | 2,792 | 8.8 min | 90.2% | 245 |
| SFO ORD San Francisco International Airport – Chicago O'Hare International Airport | 2,964 | 6.9 min | 84.3% | 72 |
| ORD IAH Chicago O'Hare International Airport – George Bush Intercontinental Airport | 1,491 | 5.2 min | 91.7% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 24 | 75.0% | 1 |
| November 2024 | 59 | 58 | 84.5% | 1 |
| December 2024 | 46 | 45 | 84.4% | 1 |
| January 2025 | 37 | 36 | 77.8% | 1 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 57 | 57 | 77.2% | 0 |
| April 2025 | 60 | 59 | 69.5% | 1 |
| May 2025 | 62 | 62 | 61.3% | 0 |
| June 2025 | 60 | 60 | 73.3% | 0 |
| July 2025 | 62 | 60 | 63.3% | 2 |
| August 2025 | 49 | 47 | 70.2% | 2 |
| September 2025 | 36 | 35 | 71.4% | 1 |
| October 2025 | 62 | 62 | 74.2% | 0 |
| November 2025 | 59 | 58 | 75.9% | 1 |
| December 2025 | 62 | 62 | 64.5% | 0 |
| January 2026 | 36 | 35 | 77.1% | 1 |
| February 2026 | 28 | 26 | 61.5% | 2 |
| March 2026 | 55 | 53 | 64.2% | 2 |
| April 2026 | 30 | 29 | 75.9% | 1 |
| May 2026 | 31 | 30 | 76.7% | 1 |
| June 2026 | 30 | 30 | 60.0% | 0 |
| July 2026 | 31 | 29 | 41.4% | 2 |