OO4996
OO4996 (SkyWest Airlines) is a multi-stop service on 21 routes, busiest Chicago to Milwaukee. Of 549 departures recorded from November 2024 to July 2026, 75.7% left on time, according to the US BTS.
- On-time departures75.7%of 549 flights
- Average delay29.1 min
- July 202661▲ 117.9%vs July 2025
- Cancelled2.6%
- Legs flown under this number21
according to the US BTS · Nov 5, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 21 of 21 periods have data
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 | 6 | 30 | ▲ 400.0% |
| February | 20 | 17 | ▼ 15.0% |
| March | 7 | 8 | ▲ 14.3% |
| April | 28 | 2 | ▼ 92.9% |
| May | 31 | 22 | ▼ 29.0% |
| June | 30 | 60 | ▲ 100.0% |
| July | 28 | 61 | ▲ 117.9% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 33 | – | in progress |
| November | 28 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 150 | 200 | ▲ 33.3% |
according to the US BTS · November 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 21 of 21 periods have data
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 | 66.7% | 67.9% | ▲ 1.8% |
| February | 94.7% | 70.6% | ▼ 25.5% |
| March | 83.3% | 50.0% | ▼ 40.0% |
| April | 88.9% | 100.0% | ▲ 12.5% |
| May | 83.9% | 68.2% | ▼ 18.7% |
| June | 76.7% | 63.8% | ▼ 16.8% |
| July | 66.7% | 68.9% | ▲ 3.3% |
| August | 75.9% | – | – |
| September | 96.7% | – | – |
| October | 81.8% | – | in progress |
| November | 76.9% | – | – |
| December | 70.4% | – | – |
| Year-to-date average (Jan–Jul) | 80.1% | 69.9% | ▼ 12.8% |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 21 of 21 periods have data
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 21 of 21 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 2 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 4 | 4 | 0.0% |
according to the US BTS · November 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 97.4% 535
- Cancelled 2.6% 14
Share of all recorded flights in the period, all legs. · Nov 5, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD MKE Chicago O'Hare International Airport – General Mitchell International Airport | 108 | 21.8 min | 75.0% | 104 |
| DFW GJT Dallas Fort Worth International Airport – Grand Junction Regional Airport | 1,243 | 16.6 min | 76.1% | 72 |
| GJT DFW Grand Junction Regional Airport – Dallas Fort Worth International Airport | 1,243 | 52.6 min | 57.1% | 71 |
| ORD RST Chicago O'Hare International Airport – Rochester International Airport | 431 | 22.0 min | 75.0% | 38 |
| DSM ORD Des Moines International Airport – Chicago O'Hare International Airport | 480 | 51.9 min | 61.8% | 36 |
| LAX OKC Los Angeles International Airport – OKC Will Rogers World Airport | 1,906 | -4.9 min | 97.0% | 33 |
| PHX DRO Phoenix Sky Harbor International Airport – Durango La Plata County Airport | 565 | 3.4 min | 90.3% | 31 |
| PIA ORD General Wayne A. Downing Peoria International Airport – Chicago O'Hare International Airport | 209 | 108.9 min | 79.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 40 | 40 | 82.5% | 0 |
| December 2024 | 8 | 8 | 75.0% | 0 |
| January 2025 | 6 | 6 | 66.7% | 0 |
| February 2025 | 20 | 19 | 94.7% | 1 |
| March 2025 | 7 | 6 | 83.3% | 1 |
| April 2025 | 28 | 27 | 88.9% | 1 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 30 | 30 | 76.7% | 0 |
| July 2025 | 28 | 27 | 66.7% | 1 |
| August 2025 | 31 | 29 | 75.9% | 2 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 33 | 33 | 81.8% | 0 |
| November 2025 | 28 | 26 | 76.9% | 2 |
| December 2025 | 29 | 27 | 70.4% | 2 |
| January 2026 | 30 | 28 | 67.9% | 2 |
| February 2026 | 17 | 17 | 70.6% | 0 |
| March 2026 | 8 | 8 | 50.0% | 0 |
| April 2026 | 2 | 2 | 100.0% | 0 |
| May 2026 | 22 | 22 | 68.2% | 0 |
| June 2026 | 60 | 58 | 63.8% | 2 |
| July 2026 | 61 | 61 | 68.9% | 0 |