OO4757
OO4757 (SkyWest Airlines) is a multi-stop service on 21 routes, busiest Chicago to Aspen. Of 598 departures recorded from October 2024 to July 2026, 79.2% left on time, according to the US BTS.
- On-time departures79.2%of 598 flights
- Average delay20.4 min
- July 202631▲ 3,000.0%vs July 2025
- Cancelled2.2%
- Legs flown under this number21
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 | 5 | 30 | ▲ 500.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 1 | 31 | ▲ 3,000.0% |
| August | 25 | – | – |
| September | 30 | – | – |
| October | 36 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 157 | 212 | ▲ 35.0% |
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 | 87.1% | 64.5% | ▼ 25.9% |
| February | 92.6% | 78.6% | ▼ 15.1% |
| March | 72.4% | 86.7% | ▲ 19.7% |
| April | 100.0% | 83.3% | ▼ 16.7% |
| May | 60.0% | 80.7% | ▲ 34.4% |
| June | 53.3% | 73.3% | ▲ 37.5% |
| July | 100.0% | 80.7% | ▼ 19.3% |
| August | 91.3% | – | – |
| September | 76.7% | – | – |
| October | 86.1% | – | in progress |
| November | 100.0% | – | – |
| December | 75.9% | – | – |
| Year-to-date average (Jan–Jul) | 80.8% | 78.2% | ▼ 3.1% |
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 | 1 | 0 | ▼ 100.0% |
| March | 2 | 1 | ▼ 50.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 5 | 1 | ▼ 80.0% |
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 97.8% 585
- Cancelled 2.2% 13
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
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD ASE Chicago O'Hare International Airport – Aspen-Pitkin County Airport (Sardy Field) | 1,627 | 43.0 min | 73.6% | 143 |
| SFO OMA San Francisco International Airport – Eppley Airfield | 2,301 | 3.1 min | 83.1% | 68 |
| ATW ORD Appleton International Airport – Chicago O'Hare International Airport | 258 | 7.1 min | 77.5% | 40 |
| ORD CID Chicago O'Hare International Airport – The Eastern Iowa Airport | 315 | 2.8 min | 86.1% | 37 |
| DEN OTH Denver International Airport – Southwest Oregon Regional Airport | 1,670 | 13.4 min | 78.4% | 37 |
| DEN IDA Denver International Airport – Idaho Falls Regional Airport | 736 | 9.6 min | 80.6% | 36 |
| DEN BFL Denver International Airport – Meadows Field | 1,357 | -2.0 min | 94.4% | 36 |
| DEN MOT Denver International Airport – Minot International Airport | 972 | 5.6 min | 84.4% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 70.0% | 0 |
| November 2024 | 29 | 26 | 76.9% | 3 |
| December 2024 | 29 | 29 | 89.7% | 0 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 28 | 27 | 92.6% | 1 |
| March 2025 | 31 | 29 | 72.4% | 2 |
| April 2025 | 5 | 4 | 100.0% | 1 |
| May 2025 | 31 | 30 | 60.0% | 1 |
| June 2025 | 30 | 30 | 53.3% | 0 |
| July 2025 | 1 | 1 | 100.0% | 0 |
| August 2025 | 25 | 23 | 91.3% | 2 |
| September 2025 | 30 | 30 | 76.7% | 0 |
| October 2025 | 36 | 36 | 86.1% | 0 |
| November 2025 | 29 | 29 | 100.0% | 0 |
| December 2025 | 31 | 29 | 75.9% | 2 |
| January 2026 | 31 | 31 | 64.5% | 0 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 31 | 30 | 86.7% | 1 |
| April 2026 | 30 | 30 | 83.3% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 30 | 73.3% | 0 |
| July 2026 | 31 | 31 | 80.7% | 0 |