OO5588
OO5588 (SkyWest Airlines) is a multi-stop service on 19 routes, busiest Chicago to Dayton. Of 531 departures recorded from October 2024 to July 2026, 76.9% left on time, according to the US BTS.
- On-time departures76.9%of 531 flights
- Average delay18.1 min
- July 202631▲ 47.6%vs July 2025
- Cancelled3.2%
- 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 | 26 | 27 | ▲ 3.8% |
| February | 28 | 11 | ▼ 60.7% |
| March | 28 | 10 | ▼ 64.3% |
| April | 26 | 30 | ▲ 15.4% |
| May | 27 | 31 | ▲ 14.8% |
| June | 29 | 30 | ▲ 3.4% |
| July | 21 | 31 | ▲ 47.6% |
| August | 4 | – | – |
| September | 6 | – | – |
| October | 27 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 185 | 170 | ▼ 8.1% |
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 | 84.6% | 59.3% | ▼ 30.0% |
| February | 70.4% | 72.7% | ▲ 3.4% |
| March | 75.0% | 77.8% | ▲ 3.7% |
| April | 76.9% | 46.7% | ▼ 39.3% |
| May | 88.9% | 93.3% | ▲ 5.0% |
| June | 86.2% | 86.7% | ▲ 0.5% |
| July | 47.4% | 74.1% | ▲ 56.4% |
| August | 75.0% | – | – |
| September | 100.0% | – | – |
| October | 85.2% | – | in progress |
| November | 56.0% | – | – |
| December | 82.8% | – | – |
| Year-to-date average (Jan–Jul) | 75.6% | 72.9% | ▼ 3.6% |
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 | 1 | 0 | ▼ 100.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 2 | 4 | ▲ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 5 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 3 | 6 | ▲ 100.0% |
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 96.8% 514
- Cancelled 3.2% 17
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 DAY Chicago O'Hare International Airport – James M. Cox Dayton International Airport | 386 | 13.4 min | 81.2% | 216 |
| GJT DEN Grand Junction Regional Airport – Denver International Airport | 341 | -0.2 min | 90.9% | 56 |
| PIT ORD Pittsburgh International Airport – Chicago O'Hare International Airport | 662 | 35.4 min | 75.8% | 37 |
| ORD TYS Chicago O'Hare International Airport – McGhee Tyson Airport | 765 | 28.3 min | 59.4% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 28 | 92.9% | 1 |
| December 2024 | 29 | 29 | 75.9% | 0 |
| January 2025 | 26 | 26 | 84.6% | 0 |
| February 2025 | 28 | 27 | 70.4% | 1 |
| March 2025 | 28 | 28 | 75.0% | 0 |
| April 2025 | 26 | 26 | 76.9% | 0 |
| May 2025 | 27 | 27 | 88.9% | 0 |
| June 2025 | 29 | 29 | 86.2% | 0 |
| July 2025 | 21 | 19 | 47.4% | 2 |
| August 2025 | 4 | 4 | 75.0% | 0 |
| September 2025 | 6 | 6 | 100.0% | 0 |
| October 2025 | 27 | 27 | 85.2% | 0 |
| November 2025 | 30 | 25 | 56.0% | 5 |
| December 2025 | 31 | 29 | 82.8% | 2 |
| January 2026 | 27 | 27 | 59.3% | 0 |
| February 2026 | 11 | 11 | 72.7% | 0 |
| March 2026 | 10 | 9 | 77.8% | 1 |
| April 2026 | 30 | 30 | 46.7% | 0 |
| May 2026 | 31 | 30 | 93.3% | 1 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 31 | 27 | 74.1% | 4 |