OO4035
OO4035 (SkyWest Airlines) is a multi-stop service on 18 routes, busiest Detroit to Grand Rapids. Of 717 departures recorded from October 2024 to July 2026, 74.7% left on time, according to the US BTS.
- On-time departures74.7%of 717 flights
- Average delay21.6 min
- July 202631▼ 36.7%vs July 2025
- Cancelled0.8%
- Legs flown under this number18
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 52 | ▲ 2,500.0% |
| February | 15 | 28 | ▲ 86.7% |
| March | 31 | 44 | ▲ 41.9% |
| April | 13 | 38 | ▲ 192.3% |
| May | – | 31 | – |
| June | 41 | 30 | ▼ 26.8% |
| July | 49 | 31 | ▼ 36.7% |
| August | 48 | – | – |
| September | 41 | – | – |
| October | 53 | – | in progress |
| November | 48 | – | – |
| December | 34 | – | – |
according to the US BTS · October 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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 0.0% | 73.1% | – |
| February | 76.9% | 78.6% | ▲ 2.1% |
| March | 83.9% | 83.3% | ▼ 0.6% |
| April | 100.0% | 92.1% | ▼ 7.9% |
| May | – | 90.3% | – |
| June | 65.9% | 83.3% | ▲ 26.5% |
| July | 42.9% | 87.1% | ▲ 103.2% |
| August | 66.7% | – | – |
| September | 82.9% | – | – |
| October | 88.7% | – | in progress |
| November | 73.9% | – | – |
| December | 47.1% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 2 | 0 | ▼ 100.0% |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 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 99.2% 711
- Cancelled 0.8% 6
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 87.5% | 0 |
| November 2024 | 32 | 32 | 75.0% | 0 |
| December 2024 | 32 | 32 | 50.0% | 0 |
| January 2025 | 2 | 2 | 0.0% | 0 |
| February 2025 | 15 | 13 | 76.9% | 2 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 13 | 13 | 100.0% | 0 |
| June 2025 | 41 | 41 | 65.9% | 0 |
| July 2025 | 49 | 49 | 42.9% | 0 |
| August 2025 | 48 | 48 | 66.7% | 0 |
| September 2025 | 41 | 41 | 82.9% | 0 |
| October 2025 | 53 | 53 | 88.7% | 0 |
| November 2025 | 48 | 46 | 73.9% | 2 |
| December 2025 | 34 | 34 | 47.1% | 0 |
| January 2026 | 52 | 52 | 73.1% | 0 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 44 | 42 | 83.3% | 2 |
| April 2026 | 38 | 38 | 92.1% | 0 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 31 | 87.1% | 0 |