OO5319
OO5319 (SkyWest Airlines) is a multi-stop service on 22 routes, busiest Chicago to Milwaukee. Of 420 departures recorded from December 2024 to July 2026, 76.2% left on time, according to the US BTS.
- On-time departures76.2%of 420 flights
- Average delay15.8 min
- July 202630▲ 36.4%vs July 2025
- Cancelled1.0%
- Legs flown under this number22
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 23 | 8 | ▼ 65.2% |
| February | 26 | 19 | ▼ 26.9% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 28 | ▼ 9.7% |
| June | 27 | 27 | 0.0% |
| July | 22 | 30 | ▲ 36.4% |
| August | 31 | – | – |
| September | 6 | – | – |
| October | 7 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 190 | 173 | ▼ 8.9% |
according to the US BTS · December 2024 → July 2026
On-time departures by month
Months without data are left blank.
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 | 81.0% | 62.5% | ▼ 22.8% |
| February | 96.2% | 84.2% | ▼ 12.4% |
| March | 54.8% | 90.0% | ▲ 64.1% |
| April | 93.1% | 70.0% | ▼ 24.8% |
| May | 64.5% | 50.0% | ▼ 22.5% |
| June | 59.3% | 88.9% | ▲ 50.0% |
| July | 90.9% | 93.3% | ▲ 2.7% |
| August | 67.7% | – | – |
| September | 66.7% | – | – |
| October | 100.0% | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Jul) | 77.1% | 77.0% | ▼ 0.1% |
according to the US BTS · December 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · December 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
according to the US BTS · December 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 99.0% 416
- Cancelled 1.0% 4
Share of all recorded flights in the period, all legs. · Dec 19, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD MKE Chicago O'Hare International Airport – General Mitchell International Airport | 108 | 12.2 min | 72.7% | 67 |
| FSD DEN Sioux Falls Regional Airport – Denver International Airport | 777 | 9.7 min | 85.3% | 61 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 13 | 13 | 61.5% | 0 |
| January 2025 | 23 | 21 | 81.0% | 2 |
| February 2025 | 26 | 26 | 96.2% | 0 |
| March 2025 | 31 | 31 | 54.8% | 0 |
| April 2025 | 30 | 29 | 93.1% | 1 |
| May 2025 | 31 | 31 | 64.5% | 0 |
| June 2025 | 27 | 27 | 59.3% | 0 |
| July 2025 | 22 | 22 | 90.9% | 0 |
| August 2025 | 31 | 31 | 67.7% | 0 |
| September 2025 | 6 | 6 | 66.7% | 0 |
| October 2025 | 7 | 7 | 100.0% | 0 |
| January 2026 | 8 | 8 | 62.5% | 0 |
| February 2026 | 19 | 19 | 84.2% | 0 |
| March 2026 | 31 | 30 | 90.0% | 1 |
| April 2026 | 30 | 30 | 70.0% | 0 |
| May 2026 | 28 | 28 | 50.0% | 0 |
| June 2026 | 27 | 27 | 88.9% | 0 |
| July 2026 | 30 | 30 | 93.3% | 0 |