City comparison
Caldwell, ID is about 1,400 miles (2,300 km) from San Antonio, TX in a straight line. By road, the drive is roughly 1,700 miles, or about 29 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 Caldwell, ID to San Antonio, TX takes about 2 h 48 min, covering roughly 1,400 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.
Caldwell, ID is on Pacific Time and San Antonio, TX is on Central Time — a 2-hour difference. When it's noon in Caldwell, it's 2 p.m. in San Antonio, which puts Caldwell 2 hours behind.
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 61,212 in Caldwell — about 23.6× larger by population. By land area, San Antonio covers about 500 sq mi vs 25 sq mi for Caldwell.
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 | Caldwell | San Antonio | Difference |
|---|---|---|---|
| Median rent | $1,012/mo | $1,189/mo | 17.5% higher in San Antonio |
| Median home value | $284,000 | $198,000 | 43.4% higher in Caldwell |
| Median household income | $65,259 | $59,593 | 9.5% higher in Caldwell |
| Groceries index | 96.9 | 94.2 | 2.9% higher in Caldwell |
| Utilities index | 75.6 | 83.3 | 10.2% higher in San Antonio |
| Transportation index | 99.5 | 96.6 | 2.9% higher in Caldwell |
| Healthcare index | 99.4 | 96.1 | 3.5% higher in Caldwell |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Caldwell, you'd need $95,513 in San Antonio to maintain your standard of living.
Climate, safety, and demographics side by side.
San Antonio, TX is about 4.5% cheaper overall than Caldwell, ID, based on our cost-of-living index. Housing costs are roughly 9% higher in Caldwell than in San Antonio. If you earn $80,000 in Caldwell, you'd need about $76,410 in San Antonio to keep the same standard of living.