OO5979
OO5979 (SkyWest Airlines) is a multi-stop service on 7 routes, busiest St Louis to Denver. Of 372 departures recorded from October 2024 to May 2026, 84.2% left on time, according to the US BTS.
- On-time departures84.2%of 372 flights
- Average delay10.6 min
- May 202614▼ 53.3%vs May 2025
- Cancelled1.1%
- Legs flown under this number7
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | – | – |
| February | 28 | – | – |
| March | 7 | 19 | ▲ 171.4% |
| April | 26 | 17 | ▼ 34.6% |
| May | 30 | 14 | ▼ 53.3% |
| June | 30 | – | – |
| July | 30 | – | – |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 1 | – | – |
according to the US BTS · October 2024 → May 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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.0% | – | – |
| February | 66.7% | – | – |
| March | 85.7% | 52.6% | ▼ 38.6% |
| April | 96.0% | 82.4% | ▼ 14.2% |
| May | 86.7% | 92.9% | ▲ 7.1% |
| June | 90.0% | – | – |
| July | 76.7% | – | – |
| August | 87.1% | – | – |
| September | 93.3% | – | – |
| October | 96.8% | – | in progress |
| November | 81.5% | – | – |
| December | 100.0% | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | 1 | – | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → May 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 98.9% 368
- Cancelled 1.1% 4
Share of all recorded flights in the period, all legs. · Oct 28, 2024 → May 20, 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 |
|---|---|---|---|---|
| STL DEN St. Louis Lambert International Airport – Denver International Airport | 1,236 | 3.8 min | 89.7% | 155 |
| EGE SFO Eagle County Regional Airport – San Francisco International Airport | 1,360 | 15.3 min | 75.4% | 58 |
| TYS ORD McGhee Tyson Airport – Chicago O'Hare International Airport | 765 | 7.9 min | 87.5% | 49 |
| SFO SNA San Francisco International Airport – John Wayne Orange County International Airport | 598 | 6.5 min | 82.4% | 36 |
| LFT IAH Lafayette Regional Airport – George Bush Intercontinental Airport | 324 | 45.5 min | 65.7% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 4 | 4 | 100.0% | 0 |
| November 2024 | 20 | 20 | 85.0% | 0 |
| January 2025 | 25 | 25 | 80.0% | 0 |
| February 2025 | 28 | 27 | 66.7% | 1 |
| March 2025 | 7 | 7 | 85.7% | 0 |
| April 2025 | 26 | 25 | 96.0% | 1 |
| May 2025 | 30 | 30 | 86.7% | 0 |
| June 2025 | 30 | 30 | 90.0% | 0 |
| July 2025 | 30 | 30 | 76.7% | 0 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 96.8% | 0 |
| November 2025 | 29 | 27 | 81.5% | 2 |
| December 2025 | 1 | 1 | 100.0% | 0 |
| March 2026 | 19 | 19 | 52.6% | 0 |
| April 2026 | 17 | 17 | 82.4% | 0 |
| May 2026 | 14 | 14 | 92.9% | 0 |