OO5603
OO5603 (SkyWest Airlines) is a multi-stop service on 4 routes, busiest Chicago to Flint. Of 612 departures recorded from October 2024 to July 2026, 70.2% left on time, according to the US BTS.
- On-time departures70.2%of 612 flights
- Average delay28.7 min
- July 202631▲ 3.3%vs July 2025
- Cancelled2.5%
- Legs flown under this number4
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 | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 16 | ▼ 48.4% |
| June | 30 | 6 | ▼ 80.0% |
| July | 30 | 31 | ▲ 3.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 211 | 173 | ▼ 18.0% |
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 | 64.5% | 67.7% | ▲ 5.0% |
| February | 56.0% | 59.3% | ▲ 5.8% |
| March | 64.5% | 55.2% | ▼ 14.5% |
| April | 86.2% | 74.1% | ▼ 14.1% |
| May | 83.9% | 87.5% | ▲ 4.3% |
| June | 66.7% | 100.0% | ▲ 50.0% |
| July | 58.6% | 73.3% | ▲ 25.1% |
| August | 66.7% | – | – |
| September | 73.3% | – | – |
| October | 87.1% | – | in progress |
| November | 59.3% | – | – |
| December | 65.5% | – | – |
| Year-to-date average (Jan–Jul) | 68.6% | 73.9% | ▲ 7.6% |
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 | 3 | 1 | ▼ 66.7% |
| March | 0 | 2 | – |
| April | 1 | 3 | ▲ 200.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 7 | ▲ 40.0% |
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 97.5% 597
- Cancelled 2.5% 15
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD FNT Chicago O'Hare International Airport – Bishop International Airport | 359 | 30.0 min | 69.2% | 559 |
| SDF ORD Louisville Muhammad Ali International Airport – Chicago O'Hare International Airport | 462 | 25.1 min | 73.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 70.0% | 0 |
| November 2024 | 29 | 29 | 79.3% | 0 |
| December 2024 | 29 | 29 | 72.4% | 0 |
| January 2025 | 31 | 31 | 64.5% | 0 |
| February 2025 | 28 | 25 | 56.0% | 3 |
| March 2025 | 31 | 31 | 64.5% | 0 |
| April 2025 | 30 | 29 | 86.2% | 1 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 30 | 30 | 66.7% | 0 |
| July 2025 | 30 | 29 | 58.6% | 1 |
| August 2025 | 31 | 30 | 66.7% | 1 |
| September 2025 | 30 | 30 | 73.3% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 29 | 27 | 59.3% | 2 |
| December 2025 | 29 | 29 | 65.5% | 0 |
| January 2026 | 31 | 31 | 67.7% | 0 |
| February 2026 | 28 | 27 | 59.3% | 1 |
| March 2026 | 31 | 29 | 55.2% | 2 |
| April 2026 | 30 | 27 | 74.1% | 3 |
| May 2026 | 16 | 16 | 87.5% | 0 |
| June 2026 | 6 | 6 | 100.0% | 0 |
| July 2026 | 31 | 30 | 73.3% | 1 |