OO4171
OO4171 (SkyWest Airlines) is a multi-stop service on 6 routes, busiest Detroit to Harrisburg. Of 270 departures recorded from October 2024 to July 2026, 83.2% left on time, according to the US BTS.
- On-time departures83.2%of 270 flights
- Average delay15.4 min
- July 20262
- Cancelled0.7%
- Legs flown under this number6
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 27 | – |
| February | – | 10 | – |
| March | – | – | – |
| April | 15 | 16 | ▲ 6.7% |
| May | 25 | 30 | ▲ 20.0% |
| June | 6 | 11 | ▲ 83.3% |
| July | – | 2 | – |
| August | 12 | – | – |
| September | 20 | – | – |
| October | 27 | – | in progress |
| November | 2 | – | – |
| December | – | – | – |
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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 68.0% | – |
| February | – | 40.0% | – |
| March | – | – | – |
| April | 86.7% | 81.3% | ▼ 6.3% |
| May | 92.0% | 76.7% | ▼ 16.7% |
| June | 83.3% | 100.0% | ▲ 20.0% |
| July | – | 0.0% | – |
| August | 83.3% | – | – |
| September | 90.0% | – | – |
| October | 77.8% | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
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 periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 2 | – |
| February | – | 0 | – |
| March | – | – | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
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 99.3% 268
- Cancelled 0.7% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 4, 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 |
|---|---|---|---|---|
| DTW MDT Detroit Metropolitan Wayne County Airport – Harrisburg International Airport | 595 | 20.3 min | 82.6% | 169 |
| MEM DTW Frederick W. Smith International Airport – Detroit Metropolitan Wayne County Airport | 982 | 8.2 min | 83.6% | 61 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 91.7% | 0 |
| November 2024 | 37 | 37 | 97.3% | 0 |
| December 2024 | 18 | 18 | 88.9% | 0 |
| April 2025 | 15 | 15 | 86.7% | 0 |
| May 2025 | 25 | 25 | 92.0% | 0 |
| June 2025 | 6 | 6 | 83.3% | 0 |
| August 2025 | 12 | 12 | 83.3% | 0 |
| September 2025 | 20 | 20 | 90.0% | 0 |
| October 2025 | 27 | 27 | 77.8% | 0 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| January 2026 | 27 | 25 | 68.0% | 2 |
| February 2026 | 10 | 10 | 40.0% | 0 |
| April 2026 | 16 | 16 | 81.3% | 0 |
| May 2026 | 30 | 30 | 76.7% | 0 |
| June 2026 | 11 | 11 | 100.0% | 0 |
| July 2026 | 2 | 2 | 0.0% | 0 |