OO3859
OO3859 (SkyWest Airlines) is a multi-stop service on 2 routes, busiest Salt Lake City to Great Falls. Of 1,313 departures recorded from October 2024 to July 2026, 94.8% left on time, according to the US BTS.
- On-time departures94.8%of 1,313 flights
- Average delay-1.9 min
- July 202662▲ 0.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number2
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 | 62 | 62 | 0.0% |
| February | 56 | 56 | 0.0% |
| March | 62 | 62 | 0.0% |
| April | 60 | 60 | 0.0% |
| May | 62 | 62 | 0.0% |
| June | 60 | 60 | 0.0% |
| July | 62 | 62 | 0.0% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 58 | – | – |
| December | 62 | – | – |
| Year to date (Jan–Jul) | 424 | 424 | 0.0% |
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 | 90.3% | 96.8% | ▲ 7.1% |
| February | 96.4% | 82.1% | ▼ 14.8% |
| March | 98.4% | 93.3% | ▼ 5.1% |
| April | 96.7% | 96.7% | 0.0% |
| May | 95.2% | 96.8% | ▲ 1.7% |
| June | 95.0% | 96.7% | ▲ 1.8% |
| July | 91.9% | 90.3% | ▼ 1.8% |
| August | 95.2% | – | – |
| September | 96.7% | – | – |
| October | 96.8% | – | in progress |
| November | 96.0% | – | – |
| December | 93.6% | – | – |
| Year-to-date average (Jan–Jul) | 94.8% | 93.2% | ▼ 1.7% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 8 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 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 99.2% 1,303
- Cancelled 0.8% 10
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SLC GTF Salt Lake City International Airport – Great Falls International Airport | 746 | -1.6 min | 95.9% | 657 |
| GTF SLC Great Falls International Airport – Salt Lake City International Airport | 746 | -2.2 min | 93.7% | 656 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 97.5% | 0 |
| November 2024 | 59 | 59 | 93.2% | 0 |
| December 2024 | 62 | 62 | 100.0% | 0 |
| January 2025 | 62 | 62 | 90.3% | 0 |
| February 2025 | 56 | 56 | 96.4% | 0 |
| March 2025 | 62 | 62 | 98.4% | 0 |
| April 2025 | 60 | 60 | 96.7% | 0 |
| May 2025 | 62 | 62 | 95.2% | 0 |
| June 2025 | 60 | 60 | 95.0% | 0 |
| July 2025 | 62 | 62 | 91.9% | 0 |
| August 2025 | 62 | 62 | 95.2% | 0 |
| September 2025 | 60 | 60 | 96.7% | 0 |
| October 2025 | 62 | 62 | 96.8% | 0 |
| November 2025 | 58 | 50 | 96.0% | 8 |
| December 2025 | 62 | 62 | 93.6% | 0 |
| January 2026 | 62 | 62 | 96.8% | 0 |
| February 2026 | 56 | 56 | 82.1% | 0 |
| March 2026 | 62 | 60 | 93.3% | 2 |
| April 2026 | 60 | 60 | 96.7% | 0 |
| May 2026 | 62 | 62 | 96.8% | 0 |
| June 2026 | 60 | 60 | 96.7% | 0 |
| July 2026 | 62 | 62 | 90.3% | 0 |