UA503
UA503 (United Airlines) is a multi-stop service on 22 routes, busiest Minneapolis to Chicago. Of 1,005 departures recorded from October 2024 to July 2026, 82.5% left on time, according to the US BTS.
- On-time departures82.5%of 1,005 flights
- Average delay14.2 min
- July 202636▼ 59.6%vs July 2025
- Cancelled0.5%
- Legs flown under this number22
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 | 34 | 43 | ▲ 26.5% |
| February | 26 | 34 | ▲ 30.8% |
| March | 33 | 31 | ▼ 6.1% |
| April | 56 | 52 | ▼ 7.1% |
| May | 62 | 47 | ▼ 24.2% |
| June | 61 | 34 | ▼ 44.3% |
| July | 89 | 36 | ▼ 59.6% |
| August | 76 | – | – |
| September | 55 | – | – |
| October | 56 | – | in progress |
| November | 42 | – | – |
| December | 46 | – | – |
| Year to date (Jan–Jul) | 361 | 277 | ▼ 23.3% |
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 | 76.5% | 74.4% | ▼ 2.7% |
| February | 84.6% | 82.4% | ▼ 2.7% |
| March | 84.9% | 80.7% | ▼ 4.9% |
| April | 89.1% | 90.4% | ▲ 1.4% |
| May | 91.9% | 83.0% | ▼ 9.7% |
| June | 85.3% | 85.3% | 0.0% |
| July | 65.9% | 88.6% | ▲ 34.4% |
| August | 85.1% | – | – |
| September | 90.9% | – | – |
| October | 83.9% | – | in progress |
| November | 71.4% | – | – |
| December | 60.9% | – | – |
| Year-to-date average (Jan–Jul) | 82.6% | 83.5% | ▲ 1.1% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 2 | – | – |
| 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 99.5% 1,000
- Cancelled 0.5% 5
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MSP ORD Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Chicago O'Hare International Airport | 537 | 3.6 min | 91.0% | 234 |
| ORD CMH Chicago O'Hare International Airport – John Glenn Columbus International Airport | 475 | 15.1 min | 77.3% | 190 |
| BOS ORD Boston Logan International Airport – Chicago O'Hare International Airport | 1,391 | 18.8 min | 87.4% | 135 |
| ORD DEN Chicago O'Hare International Airport – Denver International Airport | 1,426 | 22.9 min | 79.7% | 126 |
| DEN BOS Denver International Airport – Boston Logan International Airport | 2,816 | 31.7 min | 59.3% | 54 |
| ORD FLL Chicago O'Hare International Airport – Fort Lauderdale Hollywood International Airport | 1,905 | 10.8 min | 80.0% | 45 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 96.0% | 0 |
| November 2024 | 24 | 24 | 87.5% | 0 |
| December 2024 | 43 | 43 | 90.7% | 0 |
| January 2025 | 34 | 34 | 76.5% | 0 |
| February 2025 | 26 | 26 | 84.6% | 0 |
| March 2025 | 33 | 33 | 84.9% | 0 |
| April 2025 | 56 | 55 | 89.1% | 1 |
| May 2025 | 62 | 62 | 91.9% | 0 |
| June 2025 | 61 | 61 | 85.3% | 0 |
| July 2025 | 89 | 88 | 65.9% | 1 |
| August 2025 | 76 | 74 | 85.1% | 2 |
| September 2025 | 55 | 55 | 90.9% | 0 |
| October 2025 | 56 | 56 | 83.9% | 0 |
| November 2025 | 42 | 42 | 71.4% | 0 |
| December 2025 | 46 | 46 | 60.9% | 0 |
| January 2026 | 43 | 43 | 74.4% | 0 |
| February 2026 | 34 | 34 | 82.4% | 0 |
| March 2026 | 31 | 31 | 80.7% | 0 |
| April 2026 | 52 | 52 | 90.4% | 0 |
| May 2026 | 47 | 47 | 83.0% | 0 |
| June 2026 | 34 | 34 | 85.3% | 0 |
| July 2026 | 36 | 35 | 88.6% | 1 |