OO5580
OO5580 (SkyWest Airlines) is a multi-stop service on 8 routes, busiest Denver to Rapid City. Of 599 departures recorded from October 2024 to July 2026, 69.6% left on time, according to the US BTS.
- On-time departures69.6%of 599 flights
- Average delay23.7 min
- July 202622▼ 29.0%vs July 2025
- Cancelled3.3%
- Legs flown under this number8
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 | 30 | 31 | ▲ 3.3% |
| February | 28 | 28 | 0.0% |
| March | 31 | 30 | ▼ 3.2% |
| April | 30 | 30 | 0.0% |
| May | 31 | 28 | ▼ 9.7% |
| June | 30 | 20 | ▼ 33.3% |
| July | 31 | 22 | ▼ 29.0% |
| August | 31 | – | – |
| September | 28 | – | – |
| October | 22 | – | in progress |
| November | 8 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 211 | 189 | ▼ 10.4% |
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 | 70.0% | 74.2% | ▲ 6.0% |
| February | 84.0% | 85.7% | ▲ 2.0% |
| March | 70.0% | 69.2% | ▼ 1.1% |
| April | 73.3% | 80.0% | ▲ 9.1% |
| May | 55.2% | 53.6% | ▼ 2.9% |
| June | 40.0% | 75.0% | ▲ 87.5% |
| July | 37.9% | 59.1% | ▲ 55.8% |
| August | 63.3% | – | – |
| September | 78.6% | – | – |
| October | 90.9% | – | in progress |
| November | 85.7% | – | – |
| December | 70.0% | – | – |
| Year-to-date average (Jan–Jul) | 61.5% | 71.0% | ▲ 15.4% |
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 | 0 | – |
| February | 3 | 0 | ▼ 100.0% |
| March | 1 | 4 | ▲ 300.0% |
| April | 0 | 5 | – |
| May | 2 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 8 | 9 | ▲ 12.5% |
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 96.7% 579
- Cancelled 3.3% 20
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN RAP Denver International Airport – Rapid City Regional Airport | 484 | 24.7 min | 68.8% | 461 |
| STL IAH St. Louis Lambert International Airport – George Bush Intercontinental Airport | 1,076 | 28.7 min | 66.0% | 50 |
| ORD GRB Chicago O'Hare International Airport – Austin Straubel International Airport | 279 | 19.4 min | 73.9% | 46 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 29 | 28 | 71.4% | 1 |
| December 2024 | 31 | 31 | 87.1% | 0 |
| January 2025 | 30 | 30 | 70.0% | 0 |
| February 2025 | 28 | 25 | 84.0% | 3 |
| March 2025 | 31 | 30 | 70.0% | 1 |
| April 2025 | 30 | 30 | 73.3% | 0 |
| May 2025 | 31 | 29 | 55.2% | 2 |
| June 2025 | 30 | 30 | 40.0% | 0 |
| July 2025 | 31 | 29 | 37.9% | 2 |
| August 2025 | 31 | 30 | 63.3% | 1 |
| September 2025 | 28 | 28 | 78.6% | 0 |
| October 2025 | 22 | 22 | 90.9% | 0 |
| November 2025 | 8 | 7 | 85.7% | 1 |
| December 2025 | 30 | 30 | 70.0% | 0 |
| January 2026 | 31 | 31 | 74.2% | 0 |
| February 2026 | 28 | 28 | 85.7% | 0 |
| March 2026 | 30 | 26 | 69.2% | 4 |
| April 2026 | 30 | 25 | 80.0% | 5 |
| May 2026 | 28 | 28 | 53.6% | 0 |
| June 2026 | 20 | 20 | 75.0% | 0 |
| July 2026 | 22 | 22 | 59.1% | 0 |