OO4155
OO4155 (SkyWest Airlines) is a multi-stop service on 12 routes, busiest Medford to Seattle. Of 788 departures recorded from October 2024 to July 2026, 88.6% left on time, according to the US BTS.
- On-time departures88.6%of 788 flights
- Average delay4.1 min
- July 202631▼ 50.0%vs July 2025
- Cancelled1.4%
- Legs flown under this number12
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 52 | 27 | ▼ 48.1% |
| February | 56 | 17 | ▼ 69.6% |
| March | 16 | 26 | ▲ 62.5% |
| April | – | 48 | – |
| May | – | 37 | – |
| June | 46 | 30 | ▼ 34.8% |
| July | 62 | 31 | ▼ 50.0% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 60 | – | – |
| December | 38 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 98.1% | 51.9% | ▼ 47.1% |
| February | 92.9% | 70.6% | ▼ 24.0% |
| March | 93.8% | 52.0% | ▼ 44.5% |
| April | – | 87.5% | – |
| May | – | 97.3% | – |
| June | 95.7% | 86.7% | ▼ 9.4% |
| July | 90.3% | 83.9% | ▼ 7.1% |
| August | 96.8% | – | – |
| September | 96.7% | – | – |
| October | 96.8% | – | in progress |
| November | 78.9% | – | – |
| December | 75.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 8 | – | – |
| December | 2 | – | – |
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 98.6% 777
- Cancelled 1.4% 11
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA MFR Seattle–Tacoma International Airport – Rogue Valley International-Medford Airport | 566 | -2.2 min | 92.1% | 195 |
| MFR SEA Rogue Valley International-Medford Airport – Seattle–Tacoma International Airport | 566 | 4.0 min | 90.0% | 195 |
| EUG SLC Eugene Airport – Salt Lake City International Airport | 992 | 4.3 min | 88.4% | 86 |
| SLC BZN Salt Lake City International Airport – Bozeman Yellowstone International Airport | 559 | -2.7 min | 96.8% | 62 |
| BZN SLC Bozeman Yellowstone International Airport – Salt Lake City International Airport | 559 | -2.2 min | 93.6% | 62 |
| DTW GRR Detroit Metropolitan Wayne County Airport – Gerald R. Ford International Airport | 193 | 46.9 min | 54.8% | 42 |
| OMA MSP Eppley Airfield – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 453 | 25.0 min | 62.9% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 38 | 38 | 97.4% | 0 |
| November 2024 | 20 | 20 | 90.0% | 0 |
| January 2025 | 52 | 52 | 98.1% | 0 |
| February 2025 | 56 | 56 | 92.9% | 0 |
| March 2025 | 16 | 16 | 93.8% | 0 |
| June 2025 | 46 | 46 | 95.7% | 0 |
| July 2025 | 62 | 62 | 90.3% | 0 |
| August 2025 | 62 | 62 | 96.8% | 0 |
| September 2025 | 60 | 60 | 96.7% | 0 |
| October 2025 | 62 | 62 | 96.8% | 0 |
| November 2025 | 60 | 52 | 78.9% | 8 |
| December 2025 | 38 | 36 | 75.0% | 2 |
| January 2026 | 27 | 27 | 51.9% | 0 |
| February 2026 | 17 | 17 | 70.6% | 0 |
| March 2026 | 26 | 25 | 52.0% | 1 |
| April 2026 | 48 | 48 | 87.5% | 0 |
| May 2026 | 37 | 37 | 97.3% | 0 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |