City comparison
Knoxville, TN is about 950 miles (1,500 km) from San Antonio, TX in a straight line. By road, the drive is roughly 1,200 miles, or about 20 hours (about 2 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 Knoxville, TN to San Antonio, TX takes about 1 h 55 min, covering roughly 950 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 has a population of 1,445,662, vs 191,857 in Knoxville — about 7.5× larger by population. By land area, San Antonio covers about 500 sq mi vs 99 sq mi for Knoxville.
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 | Knoxville | San Antonio | Difference |
|---|---|---|---|
| Median rent | $1,043/mo | $1,189/mo | 14.0% higher in San Antonio |
| Median home value | $184,200 | $198,000 | 7.5% higher in San Antonio |
| Median household income | $48,309 | $59,593 | 23.4% higher in San Antonio |
| Groceries index | 96.5 | 94.2 | 2.4% higher in Knoxville |
| Utilities index | 73.9 | 83.3 | 12.7% higher in San Antonio |
| Transportation index | 95.6 | 96.6 | 1.0% higher in San Antonio |
| Healthcare index | 95.1 | 96.1 | 1.1% higher in San Antonio |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Knoxville, you'd need $106,534 in San Antonio to maintain your standard of living.
Climate, safety, and demographics side by side.
Knoxville, TN is about 6.1% cheaper overall than San Antonio, TX, based on our cost-of-living index. Housing costs are roughly 14% higher in San Antonio than in Knoxville. If you earn $80,000 in Knoxville, you'd need about $85,227 in San Antonio to keep the same standard of living.