The distance from Florham Park to San Francisco is approximately 2,600 miles. Flying is the only practical mode of transport for this cross-country journey. You can take a direct flight from Newark Liberty International Airport (EWR) to San Francisco International Airport (SFO), which takes about 6.5 hours. Driving is a multi-day commitment that is generally reserved for those planning a cross-country road trip.
Total Distance: 4,800 km driving distance; 4,150 km straight-line air distance.
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September to November for the best weather.