OO5437
OO5437 (SkyWest Airlines) is a multi-stop service on 12 routes, busiest Chicago to Duluth. Of 578 departures recorded from October 2024 to July 2026, 77.2% left on time, according to the US BTS.
- On-time departures77.2%of 578 flights
- Average delay14.9 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.6%
- Legs flown under this number12
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 | 8 | 31 | ▲ 287.5% |
| February | 16 | 28 | ▲ 75.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 12 | ▼ 60.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 177 | 194 | ▲ 9.6% |
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 | 100.0% | 76.7% | ▼ 23.3% |
| February | 68.8% | 74.1% | ▲ 7.7% |
| March | 80.7% | 60.0% | ▼ 25.6% |
| April | 79.3% | 76.7% | ▼ 3.3% |
| May | 93.6% | 93.6% | 0.0% |
| June | 86.7% | 58.3% | ▼ 32.7% |
| July | 74.2% | 63.3% | ▼ 14.6% |
| August | 83.3% | – | – |
| September | 80.0% | – | – |
| October | 80.7% | – | in progress |
| November | 72.4% | – | – |
| December | 51.7% | – | – |
| Year-to-date average (Jan–Jul) | 83.3% | 71.8% | ▼ 13.8% |
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 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 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 98.4% 569
- Cancelled 1.6% 9
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 DLH Chicago O'Hare International Airport – Duluth International Airport | 639 | 16.8 min | 76.2% | 446 |
| BTR IAH Baton Rouge Metropolitan Airport – George Bush Intercontinental Airport | 407 | 7.9 min | 79.4% | 34 |
| TUS ORD Tucson International Airport – Chicago O'Hare International Airport | 2,309 | 9.1 min | 78.1% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 80.0% | 0 |
| December 2024 | 4 | 4 | 75.0% | 0 |
| January 2025 | 8 | 8 | 100.0% | 0 |
| February 2025 | 16 | 16 | 68.8% | 0 |
| March 2025 | 31 | 31 | 80.7% | 0 |
| April 2025 | 30 | 29 | 79.3% | 1 |
| May 2025 | 31 | 31 | 93.6% | 0 |
| June 2025 | 30 | 30 | 86.7% | 0 |
| July 2025 | 31 | 31 | 74.2% | 0 |
| August 2025 | 31 | 30 | 83.3% | 1 |
| September 2025 | 30 | 30 | 80.0% | 0 |
| October 2025 | 31 | 31 | 80.7% | 0 |
| November 2025 | 30 | 29 | 72.4% | 1 |
| December 2025 | 31 | 29 | 51.7% | 2 |
| January 2026 | 31 | 30 | 76.7% | 1 |
| February 2026 | 28 | 27 | 74.1% | 1 |
| March 2026 | 31 | 30 | 60.0% | 1 |
| April 2026 | 30 | 30 | 76.7% | 0 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 12 | 12 | 58.3% | 0 |
| July 2026 | 31 | 30 | 63.3% | 1 |