OO4798
OO4798 (SkyWest Airlines) is a multi-stop service on 19 routes, busiest Denver to Knoxville. Of 648 departures recorded from October 2024 to July 2026, 83.8% left on time, according to the US BTS.
- On-time departures83.8%of 648 flights
- Average delay10.9 min
- July 202631▲ 0.0%vs July 2025
- Cancelled2.6%
- Legs flown under this number19
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 | 30 | ▼ 3.2% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 29 | ▼ 3.3% |
| May | 31 | 26 | ▼ 16.1% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 212 | 205 | ▼ 3.3% |
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 | 89.3% | 89.7% | ▲ 0.4% |
| February | 89.3% | 82.1% | ▼ 8.0% |
| March | 86.7% | 83.3% | ▼ 3.9% |
| April | 90.0% | 96.6% | ▲ 7.3% |
| May | 73.3% | 84.6% | ▲ 15.4% |
| June | 73.3% | 77.8% | ▲ 6.1% |
| July | 80.0% | 86.2% | ▲ 7.8% |
| August | 90.0% | – | – |
| September | 70.0% | – | – |
| October | 93.6% | – | in progress |
| November | 69.2% | – | – |
| December | 66.7% | – | – |
| Year-to-date average (Jan–Jul) | 83.1% | 85.8% | ▲ 3.2% |
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 | 3 | 1 | ▼ 66.7% |
| February | 0 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 3 | – |
| July | 1 | 2 | ▲ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 7 | ▲ 16.7% |
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 97.4% 631
- Cancelled 2.6% 17
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN TYS Denver International Airport – McGhee Tyson Airport | 1,866 | 10.8 min | 85.7% | 256 |
| PIA ORD General Wayne A. Downing Peoria International Airport – Chicago O'Hare International Airport | 209 | 19.0 min | 89.0% | 84 |
| DCA ORD Ronald Reagan Washington National Airport – Chicago O'Hare International Airport | 983 | 15.2 min | 69.8% | 45 |
| ORD MDT Chicago O'Hare International Airport – Harrisburg International Airport | 954 | 1.5 min | 85.7% | 37 |
| DSM DEN Des Moines International Airport – Denver International Airport | 947 | -1.3 min | 91.4% | 36 |
| DEN SLC Denver International Airport – Salt Lake City International Airport | 628 | -1.5 min | 96.9% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 29 | 29 | 82.8% | 0 |
| December 2024 | 31 | 31 | 93.6% | 0 |
| January 2025 | 31 | 28 | 89.3% | 3 |
| February 2025 | 28 | 28 | 89.3% | 0 |
| March 2025 | 31 | 30 | 86.7% | 1 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 30 | 73.3% | 1 |
| June 2025 | 30 | 30 | 73.3% | 0 |
| July 2025 | 31 | 30 | 80.0% | 1 |
| August 2025 | 31 | 30 | 90.0% | 1 |
| September 2025 | 30 | 30 | 70.0% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 29 | 26 | 69.2% | 3 |
| December 2025 | 30 | 30 | 66.7% | 0 |
| January 2026 | 30 | 29 | 89.7% | 1 |
| February 2026 | 28 | 28 | 82.1% | 0 |
| March 2026 | 31 | 30 | 83.3% | 1 |
| April 2026 | 29 | 29 | 96.6% | 0 |
| May 2026 | 26 | 26 | 84.6% | 0 |
| June 2026 | 30 | 27 | 77.8% | 3 |
| July 2026 | 31 | 29 | 86.2% | 2 |