OO5618
OO5618 (SkyWest Airlines) is a multi-stop service on 21 routes, busiest Chicago to Milwaukee. Of 481 departures recorded from October 2024 to July 2026, 79.2% left on time, according to the US BTS.
- On-time departures79.2%of 481 flights
- Average delay19.0 min
- July 202622▲ 37.5%vs July 2025
- Cancelled2.3%
- 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 | 27 | ▼ 3.6% |
| March | 31 | 20 | ▼ 35.5% |
| April | 30 | 22 | ▼ 26.7% |
| May | 23 | 16 | ▼ 30.4% |
| June | 15 | 30 | ▲ 100.0% |
| July | 16 | 22 | ▲ 37.5% |
| August | 4 | – | – |
| September | 22 | – | – |
| October | 5 | – | in progress |
| November | 3 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 174 | 168 | ▼ 3.4% |
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 | 71.0% | 73.3% | ▲ 3.3% |
| February | 70.4% | 77.8% | ▲ 10.5% |
| March | 83.9% | 75.0% | ▼ 10.6% |
| April | 89.7% | 72.7% | ▼ 18.9% |
| May | 91.3% | 81.3% | ▼ 11.0% |
| June | 73.3% | 85.2% | ▲ 16.2% |
| July | 50.0% | 86.4% | ▲ 72.7% |
| August | 100.0% | – | – |
| September | 90.9% | – | – |
| October | 100.0% | – | in progress |
| November | 33.3% | – | – |
| December | 86.2% | – | – |
| Year-to-date average (Jan–Jul) | 75.6% | 78.8% | ▲ 4.2% |
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 | 0 | 1 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 4 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 3 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 8 | ▲ 300.0% |
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 97.7% 470
- Cancelled 2.3% 11
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 30, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD MKE Chicago O'Hare International Airport – General Mitchell International Airport | 108 | 15.5 min | 78.8% | 166 |
| MCI DEN Kansas City International Airport – Denver International Airport | 855 | 15.1 min | 82.1% | 57 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 87.5% | 0 |
| November 2024 | 29 | 29 | 79.3% | 0 |
| December 2024 | 31 | 30 | 70.0% | 1 |
| January 2025 | 31 | 31 | 71.0% | 0 |
| February 2025 | 28 | 27 | 70.4% | 1 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 30 | 29 | 89.7% | 1 |
| May 2025 | 23 | 23 | 91.3% | 0 |
| June 2025 | 15 | 15 | 73.3% | 0 |
| July 2025 | 16 | 16 | 50.0% | 0 |
| August 2025 | 4 | 4 | 100.0% | 0 |
| September 2025 | 22 | 22 | 90.9% | 0 |
| October 2025 | 5 | 5 | 100.0% | 0 |
| November 2025 | 3 | 3 | 33.3% | 0 |
| December 2025 | 29 | 29 | 86.2% | 0 |
| January 2026 | 31 | 30 | 73.3% | 1 |
| February 2026 | 27 | 27 | 77.8% | 0 |
| March 2026 | 20 | 16 | 75.0% | 4 |
| April 2026 | 22 | 22 | 72.7% | 0 |
| May 2026 | 16 | 16 | 81.3% | 0 |
| June 2026 | 30 | 27 | 85.2% | 3 |
| July 2026 | 22 | 22 | 86.4% | 0 |