Flight profile · SkyWest Airlines
OO3859
Salt Lake City (SLC) to Great Falls (GTF) · scheduled 9:25 AM – 11:03 AM
How OO3859 performs
1,021 operations, 2023-09-05 to 2026-06-30.
OO3859 arrived on time 96.1% of the time, against 93.4% for all SLC → GTF flights — this specific departure is 2.6 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 2.6 points better.
Source: US DOT Bureau of Transportation Statistics · 1,021 operations between 2023-09-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO3859 | 96.1% | 0.49% | -12 min | 1.3% | 1,021 |
| SkyWest Airlines on SLC → GTF | 93.4% | 0.26% | -11 min | 1.7% | 3,128 |
| All SLC → GTF flights | 93.4% | 0.26% | -11 min | 1.7% | 3,128 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-09-05 to 2026-06-30
By day of week
Does OO3859 run worse on particular days?
Tuesday is historically the most reliable day and Thursday the least, a gap of 2.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-09-05 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes OO3859 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| GTF→SLC Great Falls to Salt Lake City | 2023-09-05 – 2026-06-30 | 1,020 | 91.6% |
| FAR→MSP Fargo to Minneapolis | 2023-11-04 – 2023-11-04 | 1 | — |
| MEM→LGA Memphis to New York | 2023-10-28 – 2023-11-03 | 7 | — |
| SLC→OAK Salt Lake City to Oakland | 2023-07-05 – 2023-09-04 | 59 | — |
| ATL→HPN Atlanta to White Plains | 2023-07-01 – 2023-07-08 | 2 | — |
Because the same number has served different journeys, the statistics above describe only the route OO3859 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 1,021 records of OO3859 operating SLC → GTF, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.