OO5556
OO5556 (SkyWest Airlines) is a multi-stop service on 8 routes, busiest Denver to Rapid City. Of 651 departures recorded from October 2024 to July 2026, 81.6% left on time, according to the US BTS.
- On-time departures81.6%of 651 flights
- Average delay10.8 min
- July 202630▼ 3.2%vs July 2025
- Cancelled1.5%
- 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 | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 30 | ▼ 3.2% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 212 | 211 | ▼ 0.5% |
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 | 71.0% | 72.4% | ▲ 2.0% |
| February | 73.1% | 78.6% | ▲ 7.5% |
| March | 83.9% | 76.7% | ▼ 8.6% |
| April | 86.7% | 63.3% | ▼ 26.9% |
| May | 90.3% | 87.1% | ▼ 3.6% |
| June | 83.3% | 90.0% | ▲ 8.0% |
| July | 74.2% | 90.0% | ▲ 21.3% |
| August | 67.7% | – | – |
| September | 90.0% | – | – |
| October | 87.1% | – | in progress |
| November | 96.2% | – | – |
| December | 83.3% | – | – |
| Year-to-date average (Jan–Jul) | 80.3% | 79.7% | ▼ 0.8% |
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 | 2 | 0 | ▼ 100.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
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 98.5% 641
- Cancelled 1.5% 10
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN RAP Denver International Airport – Rapid City Regional Airport | 484 | 10.2 min | 82.3% | 568 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 87.5% | 0 |
| November 2024 | 29 | 28 | 75.0% | 1 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 31 | 31 | 71.0% | 0 |
| February 2025 | 28 | 26 | 73.1% | 2 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 30 | 30 | 83.3% | 0 |
| July 2025 | 31 | 31 | 74.2% | 0 |
| August 2025 | 31 | 31 | 67.7% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 29 | 26 | 96.2% | 3 |
| December 2025 | 31 | 30 | 83.3% | 1 |
| January 2026 | 31 | 29 | 72.4% | 2 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 31 | 30 | 76.7% | 1 |
| April 2026 | 30 | 30 | 63.3% | 0 |
| May 2026 | 31 | 31 | 87.1% | 0 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 30 | 30 | 90.0% | 0 |