OO5637
OO5637 (SkyWest Airlines) is a multi-stop service on 9 routes, busiest Chicago to Green Bay. Of 486 departures recorded from October 2024 to July 2026, 79.5% left on time, according to the US BTS.
- On-time departures79.5%of 486 flights
- Average delay13.3 min
- July 202630▲ 57.9%vs July 2025
- Cancelled1.7%
- Legs flown under this number9
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 | 23 | ▼ 25.8% |
| February | 22 | 20 | ▼ 9.1% |
| March | 29 | 22 | ▼ 24.1% |
| April | 30 | 5 | ▼ 83.3% |
| May | 28 | 22 | ▼ 21.4% |
| June | 22 | 30 | ▲ 36.4% |
| July | 19 | 30 | ▲ 57.9% |
| August | 26 | – | – |
| September | 7 | – | – |
| October | 22 | – | in progress |
| November | 6 | – | – |
| December | 13 | – | – |
| Year to date (Jan–Jul) | 181 | 152 | ▼ 16.0% |
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 | 66.7% | 87.0% | ▲ 30.4% |
| February | 86.4% | 80.0% | ▼ 7.4% |
| March | 77.8% | 59.1% | ▼ 24.0% |
| April | 90.0% | 80.0% | ▼ 11.1% |
| May | 78.6% | 90.5% | ▲ 15.2% |
| June | 59.1% | 90.0% | ▲ 52.3% |
| July | 63.2% | 86.7% | ▲ 37.2% |
| August | 64.0% | – | – |
| September | 85.7% | – | – |
| October | 90.9% | – | in progress |
| November | 100.0% | – | – |
| December | 92.3% | – | – |
| Year-to-date average (Jan–Jul) | 74.5% | 81.9% | ▲ 9.9% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 2 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
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 98.4% 478
- Cancelled 1.6% 8
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 GRB Chicago O'Hare International Airport – Austin Straubel International Airport | 279 | 18.8 min | 75.4% | 273 |
| MTJ LAX Montrose Regional Airport – Los Angeles International Airport | 1,070 | 12.3 min | 78.1% | 82 |
| TUL IAH Tulsa International Airport – George Bush Intercontinental Airport | 693 | 3.2 min | 88.7% | 71 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 29 | 82.8% | 0 |
| December 2024 | 30 | 29 | 72.4% | 1 |
| January 2025 | 31 | 30 | 66.7% | 1 |
| February 2025 | 22 | 22 | 86.4% | 0 |
| March 2025 | 29 | 27 | 77.8% | 2 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 28 | 28 | 78.6% | 0 |
| June 2025 | 22 | 22 | 59.1% | 0 |
| July 2025 | 19 | 19 | 63.2% | 0 |
| August 2025 | 26 | 25 | 64.0% | 1 |
| September 2025 | 7 | 7 | 85.7% | 0 |
| October 2025 | 22 | 22 | 90.9% | 0 |
| November 2025 | 6 | 4 | 100.0% | 2 |
| December 2025 | 13 | 13 | 92.3% | 0 |
| January 2026 | 23 | 23 | 87.0% | 0 |
| February 2026 | 20 | 20 | 80.0% | 0 |
| March 2026 | 22 | 22 | 59.1% | 0 |
| April 2026 | 5 | 5 | 80.0% | 0 |
| May 2026 | 22 | 21 | 90.5% | 1 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 30 | 30 | 86.7% | 0 |