OO5121
OO5121 (SkyWest Airlines) is a multi-stop service on 5 routes, busiest Eau Claire to Chicago. Of 811 departures recorded from December 2024 to July 2026, 84.7% left on time, according to the US BTS.
- On-time departures84.7%of 811 flights
- Average delay15.4 min
- July 202654▲ 74.2%vs July 2025
- Cancelled3.3%
- Legs flown under this number5
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 | 30 | 48 | ▲ 60.0% |
| February | 28 | 34 | ▲ 21.4% |
| March | 31 | 50 | ▲ 61.3% |
| April | 30 | 51 | ▲ 70.0% |
| May | 39 | 39 | 0.0% |
| June | 47 | 34 | ▼ 27.7% |
| July | 31 | 54 | ▲ 74.2% |
| August | 53 | – | – |
| September | 51 | – | – |
| October | 54 | – | in progress |
| November | 51 | – | – |
| December | 43 | – | – |
| Year to date (Jan–Jul) | 236 | 310 | ▲ 31.4% |
according to the US BTS · December 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 | 80.0% | 76.6% | ▼ 4.3% |
| February | 76.9% | 85.3% | ▲ 10.9% |
| March | 86.7% | 76.2% | ▼ 12.1% |
| April | 96.4% | 72.3% | ▼ 25.0% |
| May | 94.9% | 94.9% | 0.0% |
| June | 83.0% | 79.4% | ▼ 4.3% |
| July | 93.6% | 87.0% | ▼ 7.0% |
| August | 88.2% | – | – |
| September | 90.2% | – | – |
| October | 88.9% | – | in progress |
| November | 89.6% | – | – |
| December | 69.2% | – | – |
| Year-to-date average (Jan–Jul) | 87.3% | 81.7% | ▼ 6.5% |
according to the US BTS · December 2024 → July 2026
Average departure delay by month
according to the US BTS · December 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 | 2 | 0 | ▼ 100.0% |
| March | 1 | 8 | ▲ 700.0% |
| April | 2 | 4 | ▲ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 4 | – | – |
| Year to date (Jan–Jul) | 5 | 13 | ▲ 160.0% |
according to the US BTS · December 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 96.7% 784
- Cancelled 3.3% 27
Share of all recorded flights in the period, all legs. · Dec 13, 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 |
|---|---|---|---|---|
| EAU ORD Chippewa Valley Regional Airport – Chicago O'Hare International Airport | 432 | 20.8 min | 85.3% | 536 |
| ORD FOD Chicago O'Hare International Airport – Fort Dodge Regional Airport | 521 | 5.5 min | 81.0% | 127 |
| ORD DEC Chicago O'Hare International Airport – Decatur Airport | 252 | 5.5 min | 83.3% | 97 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 13 | 13 | 84.6% | 0 |
| January 2025 | 30 | 30 | 80.0% | 0 |
| February 2025 | 28 | 26 | 76.9% | 2 |
| March 2025 | 31 | 30 | 86.7% | 1 |
| April 2025 | 30 | 28 | 96.4% | 2 |
| May 2025 | 39 | 39 | 94.9% | 0 |
| June 2025 | 47 | 47 | 83.0% | 0 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 53 | 51 | 88.2% | 2 |
| September 2025 | 51 | 51 | 90.2% | 0 |
| October 2025 | 54 | 54 | 88.9% | 0 |
| November 2025 | 51 | 48 | 89.6% | 3 |
| December 2025 | 43 | 39 | 69.2% | 4 |
| January 2026 | 48 | 47 | 76.6% | 1 |
| February 2026 | 34 | 34 | 85.3% | 0 |
| March 2026 | 50 | 42 | 76.2% | 8 |
| April 2026 | 51 | 47 | 72.3% | 4 |
| May 2026 | 39 | 39 | 94.9% | 0 |
| June 2026 | 34 | 34 | 79.4% | 0 |
| July 2026 | 54 | 54 | 87.0% | 0 |