OO5478
OO5478 (SkyWest Airlines) is a multi-stop service on 18 routes, busiest Harrisburg to Chicago. Of 552 departures recorded from October 2024 to July 2026, 80.7% left on time, according to the US BTS.
- On-time departures80.7%of 552 flights
- Average delay15.2 min
- July 202630▲ 30.4%vs July 2025
- Cancelled1.6%
- Legs flown under this number18
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 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 | 26 | 27 | ▲ 3.8% |
| February | 28 | 22 | ▼ 21.4% |
| March | 30 | 7 | ▼ 76.7% |
| April | 30 | 30 | 0.0% |
| May | 11 | 31 | ▲ 181.8% |
| June | 28 | 30 | ▲ 7.1% |
| July | 23 | 30 | ▲ 30.4% |
| August | 25 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 176 | 177 | ▲ 0.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 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 | 76.9% | 92.6% | ▲ 20.4% |
| February | 74.1% | 86.4% | ▲ 16.6% |
| March | 89.7% | 71.4% | ▼ 20.3% |
| April | 86.7% | 65.5% | ▼ 24.4% |
| May | 90.9% | 86.7% | ▼ 4.7% |
| June | 51.9% | 90.0% | ▲ 73.6% |
| July | 73.9% | 90.0% | ▲ 21.8% |
| August | 84.0% | – | – |
| September | 89.7% | – | – |
| October | 76.7% | – | in progress |
| November | 76.9% | – | – |
| December | 66.7% | – | – |
| Year-to-date average (Jan–Jul) | 77.7% | 83.2% | ▲ 7.1% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 1 | – |
| May | 0 | 1 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 3 | 2 | ▼ 33.3% |
according to the US BTS · October 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 98.4% 543
- Cancelled 1.6% 9
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDT ORD Harrisburg International Airport – Chicago O'Hare International Airport | 954 | 17.1 min | 75.2% | 125 |
| LIT IAH Bill & Hillary Clinton National Airport/Adams Field – George Bush Intercontinental Airport | 603 | -0.2 min | 90.1% | 71 |
| ORD LEX Chicago O'Hare International Airport – Blue Grass Airport | 521 | 5.5 min | 85.1% | 68 |
| OMA IAH Eppley Airfield – George Bush Intercontinental Airport | 1,260 | 4.7 min | 91.7% | 48 |
| SFO SBA San Francisco International Airport – Santa Barbara Municipal Airport | 422 | 8.2 min | 85.0% | 42 |
| STL IAH St. Louis Lambert International Airport – George Bush Intercontinental Airport | 1,076 | 59.5 min | 71.1% | 38 |
| SLC LAX Salt Lake City International Airport – Los Angeles International Airport | 949 | 7.4 min | 73.0% | 37 |
| LNK ORD Lincoln Airport – Chicago O'Hare International Airport | 749 | 4.9 min | 87.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 89.5% | 0 |
| November 2024 | 21 | 21 | 81.0% | 0 |
| December 2024 | 15 | 15 | 86.7% | 0 |
| January 2025 | 26 | 26 | 76.9% | 0 |
| February 2025 | 28 | 27 | 74.1% | 1 |
| March 2025 | 30 | 29 | 89.7% | 1 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 11 | 11 | 90.9% | 0 |
| June 2025 | 28 | 27 | 51.9% | 1 |
| July 2025 | 23 | 23 | 73.9% | 0 |
| August 2025 | 25 | 25 | 84.0% | 0 |
| September 2025 | 30 | 29 | 89.7% | 1 |
| October 2025 | 30 | 30 | 76.7% | 0 |
| November 2025 | 28 | 26 | 76.9% | 2 |
| December 2025 | 31 | 30 | 66.7% | 1 |
| January 2026 | 27 | 27 | 92.6% | 0 |
| February 2026 | 22 | 22 | 86.4% | 0 |
| March 2026 | 7 | 7 | 71.4% | 0 |
| April 2026 | 30 | 29 | 65.5% | 1 |
| May 2026 | 31 | 30 | 86.7% | 1 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 30 | 30 | 90.0% | 0 |