San Ramon to Union City: Road Trip Guide & Distance

How far is San Ramon from Union City?

The distance from San Ramon to Union City is 12.9 miles (20.8 km) as the crow flies. Union City is located S of San Ramon. By car, the driving distance is approximately 16.8 miles, taking about 20min. A direct flight would take roughly 32min. Both are located in United States.

This is a very short trip, perfect for a quick morning drive or an easy commute. Given the short distance, driving or taking a train is often faster and more convenient than dealing with airport security and flight boarding times.

Coordinates come from public place data for San Ramon and Union City. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.