Flight California Redwood Coast - Humboldt County Airport departs from Eureka California Redwood Coast - Humboldt County Airport at 17:45 and arrives at San Francisco International Airport at 19:02.
The flighttime is about 4h 17m. The distance travelled ("as the bird flies"): 281 Km. So the average speed is roughly 66 Km.
There is an 3 hour time difference between Eureka and San Francisco