OO4320
OO4320 (SkyWest Airlines) is a multi-stop service on 6 routes, busiest Salt Lake City to West Yellowstone. Of 186 departures recorded from December 2024 to July 2026, 89.2% left on time, according to the US BTS.
- On-time departures89.2%of 186 flights
- Average delay0.9 min
- July 202662
- Cancelled0.5%
- Legs flown under this number6
Recorded departures by month
Short series — OO4320 has only 5 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods4 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 2 | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 20 | – |
| June | – | 60 | – |
| July | – | 62 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · December 2024 → July 2026
On-time departures by month
Short series — OO4320 has only 5 months so far. Enough to show the level now, not enough to read a trend.
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 periods4 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 100.0% | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 90.0% | – |
| June | – | 91.5% | – |
| July | – | 90.3% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · December 2024 → July 2026
Average departure delay by month
Short series — OO4320 has only 5 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · December 2024 → July 2026
Cancelled departures by month
Short series — OO4320 has only 5 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods4 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 0 | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 0 | – |
| June | – | 1 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 99.5% 185
- Cancelled 0.5% 1
Share of all recorded flights in the period, all legs. · Dec 3, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| WYS SLC Yellowstone Airport – Salt Lake City International Airport | 439 | -0.2 min | 88.6% | 71 |
| SLC WYS Salt Lake City International Airport – Yellowstone Airport | 439 | -1.2 min | 93.0% | 71 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 42 | 42 | 83.3% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| May 2026 | 20 | 20 | 90.0% | 0 |
| June 2026 | 60 | 59 | 91.5% | 1 |
| July 2026 | 62 | 62 | 90.3% | 0 |