OO5027
OO5027 (SkyWest Airlines) is a multi-stop service on 11 routes, busiest Decatur to Chicago. Of 735 departures recorded from October 2024 to July 2026, 82.3% left on time, according to the US BTS.
- On-time departures82.3%of 735 flights
- Average delay14.5 min
- July 202645▲ 45.2%vs July 2025
- Cancelled3.0%
- Legs flown under this number11
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 | 23 | 53 | ▲ 130.4% |
| February | 20 | 34 | ▲ 70.0% |
| March | 22 | 47 | ▲ 113.6% |
| April | 21 | 46 | ▲ 119.0% |
| May | 40 | 30 | ▼ 25.0% |
| June | 30 | 46 | ▲ 53.3% |
| July | 31 | 45 | ▲ 45.2% |
| August | 26 | – | – |
| September | 30 | – | – |
| October | 35 | – | in progress |
| November | 42 | – | – |
| December | 50 | – | – |
| Year to date (Jan–Jul) | 187 | 301 | ▲ 61.0% |
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 | 73.9% | 76.9% | ▲ 4.1% |
| February | 80.0% | 93.9% | ▲ 17.4% |
| March | 86.4% | 81.0% | ▼ 6.3% |
| April | 85.7% | 81.0% | ▼ 5.6% |
| May | 84.2% | 82.8% | ▼ 1.7% |
| June | 86.2% | 91.1% | ▲ 5.7% |
| July | 61.3% | 88.1% | ▲ 43.7% |
| August | 92.3% | – | – |
| September | 83.3% | – | – |
| October | 85.7% | – | in progress |
| November | 78.1% | – | – |
| December | 70.8% | – | – |
| Year-to-date average (Jan–Jul) | 79.7% | 85.0% | ▲ 6.6% |
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 | 1 | – |
| February | 0 | 1 | – |
| March | 0 | 5 | – |
| April | 0 | 4 | – |
| May | 2 | 1 | ▼ 50.0% |
| June | 1 | 1 | 0.0% |
| July | 0 | 3 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 3 | 16 | ▲ 433.3% |
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 97.0% 713
- Cancelled 3.0% 22
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEC ORD Decatur Airport – Chicago O'Hare International Airport | 252 | 11.1 min | 85.5% | 421 |
| ORD DEC Chicago O'Hare International Airport – Decatur Airport | 252 | 10.2 min | 79.7% | 70 |
| ORD LAF Chicago O'Hare International Airport – Purdue University Airport | 192 | 43.5 min | 72.7% | 48 |
| ORD MCW Chicago O'Hare International Airport – Mason City Municipal Airport | 463 | 9.8 min | 81.1% | 41 |
| ORD EAU Chicago O'Hare International Airport – Chippewa Valley Regional Airport | 432 | 24.9 min | 72.5% | 40 |
| DEN BFF Denver International Airport – Western Neb. Rgnl/William B. Heilig Airport | 242 | 18.3 min | 66.7% | 36 |
| DEN LAR Denver International Airport – Laramie Regional Airport | 182 | 36.7 min | 78.1% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 100.0% | 0 |
| November 2024 | 23 | 23 | 78.3% | 0 |
| December 2024 | 22 | 22 | 81.8% | 0 |
| January 2025 | 23 | 23 | 73.9% | 0 |
| February 2025 | 20 | 20 | 80.0% | 0 |
| March 2025 | 22 | 22 | 86.4% | 0 |
| April 2025 | 21 | 21 | 85.7% | 0 |
| May 2025 | 40 | 38 | 84.2% | 2 |
| June 2025 | 30 | 29 | 86.2% | 1 |
| July 2025 | 31 | 31 | 61.3% | 0 |
| August 2025 | 26 | 26 | 92.3% | 0 |
| September 2025 | 30 | 30 | 83.3% | 0 |
| October 2025 | 35 | 35 | 85.7% | 0 |
| November 2025 | 42 | 41 | 78.1% | 1 |
| December 2025 | 50 | 48 | 70.8% | 2 |
| January 2026 | 53 | 52 | 76.9% | 1 |
| February 2026 | 34 | 33 | 93.9% | 1 |
| March 2026 | 47 | 42 | 81.0% | 5 |
| April 2026 | 46 | 42 | 81.0% | 4 |
| May 2026 | 30 | 29 | 82.8% | 1 |
| June 2026 | 46 | 45 | 91.1% | 1 |
| July 2026 | 45 | 42 | 88.1% | 3 |