OO5257
OO5257 (SkyWest Airlines) is a multi-stop service on 16 routes, busiest Denver to Billings. Of 601 departures recorded from October 2024 to July 2026, 76.9% left on time, according to the US BTS.
- On-time departures76.9%of 601 flights
- Average delay19.7 min
- July 202630▼ 3.2%vs July 2025
- Cancelled2.0%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 14 | 28 | ▲ 100.0% |
| March | 28 | 31 | ▲ 10.7% |
| 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 | 30 | – | – |
| Year to date (Jan–Jul) | 195 | 211 | ▲ 8.2% |
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 periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 77.8% | 93.1% | ▲ 19.7% |
| February | 42.9% | 100.0% | ▲ 133.3% |
| March | 89.3% | 70.0% | ▼ 21.6% |
| April | 96.7% | 62.1% | ▼ 35.8% |
| May | 60.0% | 80.7% | ▲ 34.4% |
| June | 43.3% | 90.0% | ▲ 107.7% |
| July | 58.6% | 43.3% | ▼ 26.1% |
| August | 67.7% | – | – |
| September | 93.3% | – | – |
| October | 96.8% | – | in progress |
| November | 93.1% | – | – |
| December | 69.0% | – | – |
| Year-to-date average (Jan–Jul) | 66.9% | 77.0% | ▲ 15.1% |
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 periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 2 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 7 | 4 | ▼ 42.9% |
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 98.0% 589
- Cancelled 2.0% 12
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 |
|---|---|---|---|---|
| DEN BIL Denver International Airport – Billings Logan International Airport | 733 | 16.8 min | 74.5% | 332 |
| IAH SLC George Bush Intercontinental Airport – Salt Lake City International Airport | 1,923 | 18.3 min | 81.8% | 45 |
| ASE DEN Aspen-Pitkin County Airport (Sardy Field) – Denver International Airport | 201 | 1.9 min | 95.1% | 44 |
| ONT SFO Ontario International Airport – San Francisco International Airport | 585 | -1.1 min | 93.8% | 32 |
| MSN ORD Dane County Regional Truax Field – Chicago O'Hare International Airport | 175 | 73.1 min | 61.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 15 | 15 | 93.3% | 0 |
| December 2024 | 29 | 29 | 86.2% | 0 |
| January 2025 | 31 | 27 | 77.8% | 4 |
| February 2025 | 14 | 14 | 42.9% | 0 |
| March 2025 | 28 | 28 | 89.3% | 0 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| May 2025 | 31 | 30 | 60.0% | 1 |
| June 2025 | 30 | 30 | 43.3% | 0 |
| July 2025 | 31 | 29 | 58.6% | 2 |
| August 2025 | 31 | 31 | 67.7% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 96.8% | 0 |
| November 2025 | 29 | 29 | 93.1% | 0 |
| December 2025 | 30 | 29 | 69.0% | 1 |
| January 2026 | 31 | 29 | 93.1% | 2 |
| February 2026 | 28 | 28 | 100.0% | 0 |
| March 2026 | 31 | 30 | 70.0% | 1 |
| April 2026 | 30 | 29 | 62.1% | 1 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 30 | 30 | 43.3% | 0 |