City comparison
San Antonio, TX is about 1,500 miles (2,300 km) from Sunnyvale, CA in a straight line. By road, the drive is roughly 1,800 miles, or about 30 hours (about 3 days at 10 h/day) behind the wheel at highway speeds.
Driving distance is a rough estimate (great-circle × 1.25); driving time assumes a 60 mph blended average. Real trips run 10–20% longer with stops.
A direct flight from San Antonio, TX to Sunnyvale, CA takes about 2 h 55 min, covering roughly 1,500 miles in a straight line. Connecting itineraries with a layover typically add 1–3 hours.
Block-to-block estimate at ~500 mph cruise, including taxi, climb, and descent — what an airline would publish, not pure airborne time.
San Antonio, TX is on Central Time and Sunnyvale, CA is on Pacific Time — a 2-hour difference. When it's noon in San Antonio, it's 10 a.m. in Sunnyvale, which puts San Antonio 2 hours ahead.
Standard-time offsets. Daylight saving applies in both cities for most of the year (exceptions: Hawaii and most of Arizona), and the gap between the two stays the same.
San Antonio has a population of 1,445,662, vs 154,573 in Sunnyvale — about 9.4× larger by population. By land area, San Antonio covers about 500 sq mi vs 22 sq mi for Sunnyvale.
Population from US Census ACS. Land area from the Census Gazetteer (city proper, excluding inland water).
Cost indices by category, with the US city average (100) marked.
Index: 100 = US city average. Lower is more affordable.
Side-by-side costs, salaries, and sub-category indices.
| Metric | San Antonio | Sunnyvale | Difference |
|---|---|---|---|
| Median rent | $1,189/mo | $2,990/mo | 151.5% higher in Sunnyvale |
| Median home value | $198,000 | $1,680,700 | 748.8% higher in Sunnyvale |
| Median household income | $59,593 | $174,506 | 192.8% higher in Sunnyvale |
| Groceries index | 94.2 | 105.1 | 11.5% higher in Sunnyvale |
| Utilities index | 83.3 | 153.8 | 84.6% higher in Sunnyvale |
| Transportation index | 96.6 | 100.7 | 4.2% higher in Sunnyvale |
| Healthcare index | 96.1 | 100.6 | 4.7% higher in Sunnyvale |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in San Antonio, you'd need $163,829 in Sunnyvale to maintain your standard of living.
Climate, safety, and demographics side by side.
San Antonio, TX is about 39% cheaper overall than Sunnyvale, CA, based on our cost-of-living index. Housing costs are roughly 127% higher in Sunnyvale than in San Antonio. If you earn $80,000 in San Antonio, you'd need about $131,063 in Sunnyvale to keep the same standard of living.