OO5939
OO5939 (SkyWest Airlines) is a multi-stop service on 7 routes, busiest Denver to Greenville. Of 532 departures recorded from October 2024 to May 2026, 87.7% left on time, according to the US BTS.
- On-time departures87.7%of 532 flights
- Average delay6.2 min
- May 202618▼ 41.9%vs May 2025
- Cancelled1.9%
- Legs flown under this number7
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 27 | ▼ 12.9% |
| April | 30 | 30 | 0.0% |
| May | 31 | 18 | ▼ 41.9% |
| June | 29 | – | – |
| July | 26 | – | – |
| August | 15 | – | – |
| September | 6 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 30 | – | – |
| Year to date (Jan–May) | 151 | 134 | ▼ 11.3% |
according to the US BTS · October 2024 → May 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 93.3% | 82.8% | ▼ 11.3% |
| February | 100.0% | 89.3% | ▼ 10.7% |
| March | 96.8% | 88.0% | ▼ 9.1% |
| April | 96.7% | 64.3% | ▼ 33.5% |
| May | 93.6% | 83.3% | ▼ 10.9% |
| June | 75.9% | – | – |
| July | 84.6% | – | – |
| August | 73.3% | – | – |
| September | 83.3% | – | – |
| October | 90.3% | – | in progress |
| November | 84.6% | – | – |
| December | 83.3% | – | – |
| Year-to-date average (Jan–May) | 96.1% | 81.5% | ▼ 15.1% |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 2 | ▲ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–May) | 1 | 6 | ▲ 500.0% |
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 98.1% 522
- Cancelled 1.9% 10
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 20, 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 GSP Denver International Airport – Greenville-Spartanburg International Airport | 2,053 | 1.6 min | 91.8% | 335 |
| DEN CID Denver International Airport – The Eastern Iowa Airport | 1,112 | 12.0 min | 80.0% | 45 |
| ORD LEX Chicago O'Hare International Airport – Blue Grass Airport | 521 | 9.8 min | 80.0% | 35 |
| ORD BDL Chicago O'Hare International Airport – Bradley International Airport | 1,257 | 6.3 min | 87.5% | 35 |
| ORD PIA Chicago O'Hare International Airport – General Wayne A. Downing Peoria International Airport | 209 | 38.8 min | 66.7% | 32 |
| TVC ORD Cherry Capital Airport – Chicago O'Hare International Airport | 360 | 9.1 min | 87.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 31 | 31 | 96.8% | 0 |
| January 2025 | 31 | 30 | 93.3% | 1 |
| February 2025 | 28 | 28 | 100.0% | 0 |
| March 2025 | 31 | 31 | 96.8% | 0 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| May 2025 | 31 | 31 | 93.6% | 0 |
| June 2025 | 29 | 29 | 75.9% | 0 |
| July 2025 | 26 | 26 | 84.6% | 0 |
| August 2025 | 15 | 15 | 73.3% | 0 |
| September 2025 | 6 | 6 | 83.3% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 29 | 26 | 84.6% | 3 |
| December 2025 | 30 | 30 | 83.3% | 0 |
| January 2026 | 31 | 29 | 82.8% | 2 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 27 | 25 | 88.0% | 2 |
| April 2026 | 30 | 28 | 64.3% | 2 |
| May 2026 | 18 | 18 | 83.3% | 0 |