OO5320
OO5320 (SkyWest Airlines) is a multi-stop service on 10 routes, busiest Chicago to Milwaukee. Of 621 departures recorded from October 2024 to July 2026, 71.8% left on time, according to the US BTS.
- On-time departures71.8%of 621 flights
- Average delay26.2 min
- July 202631▲ 3.3%vs July 2025
- Cancelled2.3%
- Legs flown under this number10
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 | 25 | ▼ 19.4% |
| February | 28 | 24 | ▼ 14.3% |
| March | 31 | 10 | ▼ 67.7% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 30 | 31 | ▲ 3.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 211 | 181 | ▼ 14.2% |
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 | 87.1% | 62.5% | ▼ 28.2% |
| February | 71.4% | 73.9% | ▲ 3.5% |
| March | 65.5% | 100.0% | ▲ 52.6% |
| April | 86.7% | 80.0% | ▼ 7.7% |
| May | 71.0% | 86.7% | ▲ 22.1% |
| June | 60.0% | 78.6% | ▲ 30.9% |
| July | 55.2% | 86.7% | ▲ 57.1% |
| August | 59.3% | – | – |
| September | 70.0% | – | – |
| October | 80.7% | – | in progress |
| November | 64.3% | – | – |
| December | 45.2% | – | – |
| Year-to-date average (Jan–Jul) | 71.0% | 81.2% | ▲ 14.4% |
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 | 2 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 2 | – |
| July | 1 | 1 | 0.0% |
| August | 4 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 6 | ▲ 100.0% |
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% 607
- Cancelled 2.3% 14
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD MKE Chicago O'Hare International Airport – General Mitchell International Airport | 108 | 26.7 min | 69.5% | 395 |
| ORD ASE Chicago O'Hare International Airport – Aspen-Pitkin County Airport (Sardy Field) | 1,627 | 33.8 min | 60.8% | 76 |
| GRB ORD Austin Straubel International Airport – Chicago O'Hare International Airport | 279 | 28.5 min | 84.1% | 72 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 84.2% | 0 |
| November 2024 | 27 | 27 | 85.2% | 0 |
| December 2024 | 31 | 31 | 48.4% | 0 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 28 | 28 | 71.4% | 0 |
| March 2025 | 31 | 29 | 65.5% | 2 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 71.0% | 0 |
| June 2025 | 30 | 30 | 60.0% | 0 |
| July 2025 | 30 | 29 | 55.2% | 1 |
| August 2025 | 31 | 27 | 59.3% | 4 |
| September 2025 | 30 | 30 | 70.0% | 0 |
| October 2025 | 31 | 31 | 80.7% | 0 |
| November 2025 | 29 | 28 | 64.3% | 1 |
| December 2025 | 31 | 31 | 45.2% | 0 |
| January 2026 | 25 | 24 | 62.5% | 1 |
| February 2026 | 24 | 23 | 73.9% | 1 |
| March 2026 | 10 | 10 | 100.0% | 0 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 31 | 30 | 86.7% | 1 |
| June 2026 | 30 | 28 | 78.6% | 2 |
| July 2026 | 31 | 30 | 86.7% | 1 |