Flight profile · SkyWest Airlines
OO4137
Spokane (GEG) to Seattle (SEA) · scheduled 6:10 AM – 7:30 AM
How OO4137 performs
416 operations, 2025-01-06 to 2026-06-07.
OO4137 arrived on time 94.9% of the time, against 85.1% for all GEG → SEA flights — this specific departure is 9.8 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 7.5 points better.
Source: US DOT Bureau of Transportation Statistics · 416 operations between 2025-01-06 to 2026-06-07
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO4137 | 94.9% | 0.24% | -14 min | 1.5% | 416 |
| SkyWest Airlines on GEG → SEA | 87.4% | 0.43% | -8 min | 3.6% | 9,335 |
| All GEG → SEA flights | 85.1% | 0.69% | -6 min | 3.7% | 15,625 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-01-06 to 2026-06-07
Other routes OO4137 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 |
|---|---|---|---|
| MSN→DTW Madison to Detroit | 2026-04-19 – 2026-05-03 | 3 | — |
| SAN→LAX San Diego to Los Angeles | 2026-04-12 – 2026-04-12 | 1 | — |
| SEA→GEG Seattle to Spokane | 2024-11-11 – 2024-12-18 | 35 | — |
| PVD→DTW Providence/Warwick to Detroit | 2024-10-07 – 2024-11-10 | 35 | — |
| MKE→MSP Milwaukee to Minneapolis | 2024-09-09 – 2024-10-06 | 16 | — |
| MSP→MKE Minneapolis to Milwaukee | 2024-09-09 – 2024-10-06 | 16 | — |
| SLC→SMF Salt Lake City to Sacramento | 2024-09-14 – 2024-10-05 | 4 | — |
| SMF→SLC Sacramento to Salt Lake City | 2024-09-14 – 2024-10-05 | 4 | — |
| DTW→MKE Detroit to Milwaukee | 2024-09-02 – 2024-09-08 | 6 | — |
| MKE→DTW Milwaukee to Detroit | 2024-09-02 – 2024-09-08 | 6 | — |
| MSP→MOT Minneapolis to Minot | 2024-07-13 – 2024-09-07 | 10 | — |
| ORD→LGA Chicago to New York | 2024-08-18 – 2024-08-21 | 2 | — |
| ATL→LFT Atlanta to Lafayette | 2024-06-07 – 2024-07-07 | 20 | — |
| LFT→ATL Lafayette to Atlanta | 2024-06-07 – 2024-07-07 | 20 | — |
| ATL→MGM Atlanta to Montgomery | 2024-06-08 – 2024-07-06 | 7 | — |
| MGM→ATL Montgomery to Atlanta | 2024-06-08 – 2024-07-06 | 7 | — |
| DTW→SYR Detroit to Syracuse | 2024-07-03 – 2024-07-03 | 1 | — |
| SYR→DTW Syracuse to Detroit | 2024-07-03 – 2024-07-03 | 1 | — |
| BOI→SEA Boise to Seattle | 2024-05-07 – 2024-06-06 | 26 | — |
| SEA→BOI Seattle to Boise | 2024-05-07 – 2024-06-06 | 26 | — |
| MSP→ORD Minneapolis to Chicago | 2024-04-13 – 2024-04-13 | 1 | — |
| ORD→MSP Chicago to Minneapolis | 2024-04-13 – 2024-04-13 | 1 | — |
| ATL→ASE Atlanta to Aspen | 2023-12-16 – 2024-04-08 | 115 | 61.4% |
| SEA→MFR Seattle to Medford | 2023-11-05 – 2023-12-15 | 41 | — |
| ATW→MSP Appleton to Minneapolis | 2023-10-28 – 2023-11-04 | 6 | — |
| MSP→ATW Minneapolis to Appleton | 2023-10-28 – 2023-11-04 | 6 | — |
| LAX→PHX Los Angeles to Phoenix | 2023-11-02 – 2023-11-03 | 2 | — |
| ATL→SBN Atlanta to South Bend | 2023-09-05 – 2023-10-27 | 52 | — |
| SLC→EUG Salt Lake City to Eugene | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route OO4137 currently operates. Blending them would produce an average of two different flights.
Why OO4137 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
weather severe enough to stop this flight specifically
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for OO4137 on GEG → SEA. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on GEG → SEA
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO3790 | SkyWest Airlines | 90.3% | 12 min early | 624 |
| OO4145 | SkyWest Airlines | 89.7% | 8 min early | 769 |
| OO3832 | SkyWest Airlines | 89.6% | 10 min early | 709 |
| OO3824 | SkyWest Airlines | 88.6% | 9 min early | 679 |
| OO3830 | SkyWest Airlines | 84.6% | 7 min early | 859 |
| AS1011 | Alaska Airlines | 67.7% | 3 min late | 735 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 416 records of OO4137 operating GEG → SEA, 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.