SKW3991
- Airline
- SkyWest Airlines (SKW)
- Route
- San Francisco International Airport (SFO/KSFO) → Seattle–Tacoma International Airport (SEA/KSEA)
- Observed take-off
- Observed landing
- Aircraft
- N310SY · E75L
- Positions recorded
- 3102
Source: observations by the map.flights community network of ADS-B receivers; times in UTC.