City comparison
San Antonio, TX is about 800 miles (1,300 km) from Thornton, CO in a straight line. By road, the drive is roughly 1,000 miles, or about 17 hours 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 Thornton, CO takes about 1 h 37 min, covering roughly 800 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 Thornton, CO is on Mountain Time — a 1-hour difference. When it's noon in San Antonio, it's 11 a.m. in Thornton, which puts San Antonio 1 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 141,799 in Thornton — about 10.2× larger by population. By land area, San Antonio covers about 500 sq mi vs 37 sq mi for Thornton.
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 | Thornton | Difference |
|---|---|---|---|
| Median rent | $1,189/mo | $1,758/mo | 47.9% higher in Thornton |
| Median home value | $198,000 | $445,200 | 124.8% higher in Thornton |
| Median household income | $59,593 | $95,064 | 59.5% higher in Thornton |
| Groceries index | 94.2 | 101.2 | 7.5% higher in Thornton |
| Utilities index | 83.3 | 91.2 | 9.5% higher in Thornton |
| Transportation index | 96.6 | 99.9 | 3.4% higher in Thornton |
| Healthcare index | 96.1 | 99.9 | 3.9% higher in Thornton |
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 $126,403 in Thornton to maintain your standard of living.
Climate, safety, and demographics side by side.
San Antonio, TX is about 20.9% cheaper overall than Thornton, CO, based on our cost-of-living index. Housing costs are roughly 55% higher in Thornton than in San Antonio. If you earn $80,000 in San Antonio, you'd need about $101,122 in Thornton to keep the same standard of living.