Flight profile · SkyWest Airlines
OO3954
Seattle (SEA) to Medford (MFR) · scheduled 9:40 PM – 11:06 PM
How OO3954 performs
903 operations, 2023-12-16 to 2026-06-30.
Source: US DOT Bureau of Transportation Statistics · 903 operations between 2023-12-16 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO3954 | 87.9% | 2.21% | -8 min | 3.5% | 903 |
| SkyWest Airlines on SEA → MFR | 88.0% | 1.04% | -8 min | 3.8% | 3,260 |
| All SEA → MFR flights | 88.0% | 1.04% | -8 min | 3.8% | 3,260 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-12-16 to 2026-06-30
By day of week
Does OO3954 run worse on particular days?
Tuesday is historically the most reliable day and Thursday the least, a gap of 11.1 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-12-16 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes OO3954 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.
Because the same number has served different journeys, the statistics above describe only the route OO3954 currently operates. Blending them would produce an average of two different flights.
Why OO3954 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 OO3954 on SEA → MFR. 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 SEA → MFR
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO3770 | SkyWest Airlines | 91.3% | 7 min early | 829 |
| OO3779 | SkyWest Airlines | 85.2% | 9 min early | 749 |
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 903 records of OO3954 operating SEA → MFR, 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.