OO5557
OO5557 (SkyWest Airlines) is a multi-stop service on 14 routes, busiest Chicago to Oklahoma City. Of 574 departures recorded from October 2024 to July 2026, 74.6% left on time, according to the US BTS.
- On-time departures74.6%of 574 flights
- Average delay18.8 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.4%
- Legs flown under this number14
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 | 9 | 31 | ▲ 244.4% |
| February | 18 | 27 | ▲ 50.0% |
| March | 31 | 10 | ▼ 67.7% |
| April | 30 | 27 | ▼ 10.0% |
| May | 31 | 48 | ▲ 54.8% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 24 | – | – |
| October | 10 | – | in progress |
| November | 30 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 180 | 204 | ▲ 13.3% |
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 | 100.0% | 69.0% | ▼ 31.0% |
| February | 83.3% | 85.2% | ▲ 2.2% |
| March | 77.4% | 80.0% | ▲ 3.3% |
| April | 80.0% | 63.0% | ▼ 21.3% |
| May | 90.3% | 72.3% | ▼ 19.9% |
| June | 90.0% | 46.7% | ▼ 48.1% |
| July | 77.4% | 43.3% | ▼ 44.0% |
| August | 74.2% | – | – |
| September | 87.5% | – | – |
| October | 90.0% | – | in progress |
| November | 92.9% | – | – |
| December | 56.7% | – | – |
| Year-to-date average (Jan–Jul) | 85.5% | 65.6% | ▼ 23.2% |
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 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 4 |
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 98.6% 566
- Cancelled 1.4% 8
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD OKC Chicago O'Hare International Airport – OKC Will Rogers World Airport | 1,114 | 13.7 min | 80.4% | 217 |
| MRY SFO Monterey Regional Airport – San Francisco International Airport | 124 | 35.6 min | 43.7% | 72 |
| SFO SBA San Francisco International Airport – Santa Barbara Municipal Airport | 422 | 24.9 min | 75.8% | 63 |
| ORD IND Chicago O'Hare International Airport – Indianapolis International Airport | 286 | 7.6 min | 81.8% | 57 |
| DEN RAP Denver International Airport – Rapid City Regional Airport | 484 | 9.8 min | 81.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 19 | 89.5% | 1 |
| November 2024 | 30 | 30 | 73.3% | 0 |
| December 2024 | 15 | 14 | 50.0% | 1 |
| January 2025 | 9 | 9 | 100.0% | 0 |
| February 2025 | 18 | 18 | 83.3% | 0 |
| March 2025 | 31 | 31 | 77.4% | 0 |
| April 2025 | 30 | 30 | 80.0% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 30 | 30 | 90.0% | 0 |
| July 2025 | 31 | 31 | 77.4% | 0 |
| August 2025 | 31 | 31 | 74.2% | 0 |
| September 2025 | 24 | 24 | 87.5% | 0 |
| October 2025 | 10 | 10 | 90.0% | 0 |
| November 2025 | 30 | 28 | 92.9% | 2 |
| December 2025 | 30 | 30 | 56.7% | 0 |
| January 2026 | 31 | 29 | 69.0% | 2 |
| February 2026 | 27 | 27 | 85.2% | 0 |
| March 2026 | 10 | 10 | 80.0% | 0 |
| April 2026 | 27 | 27 | 63.0% | 0 |
| May 2026 | 48 | 47 | 72.3% | 1 |
| June 2026 | 30 | 30 | 46.7% | 0 |
| July 2026 | 31 | 30 | 43.3% | 1 |