City comparison
San Antonio, TX is about 850 miles (1,400 km) from Springfield, IL in a straight line. By road, the drive is roughly 1,100 miles, or about 18 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 Springfield, IL takes about 1 h 45 min, covering roughly 850 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 114,214 in Springfield — about 12.7× larger by population. By land area, San Antonio covers about 500 sq mi vs 61 sq mi for Springfield.
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 | Springfield | Difference |
|---|---|---|---|
| Median rent | $1,189/mo | $913/mo | 30.2% higher in San Antonio |
| Median home value | $198,000 | $147,700 | 34.1% higher in San Antonio |
| Median household income | $59,593 | $62,419 | 4.7% higher in Springfield |
| Groceries index | 94.2 | 93.9 | ≈ equal (San Antonio slightly higher) |
| Utilities index | 83.3 | 90.5 | 8.7% higher in Springfield |
| Transportation index | 96.6 | 99.3 | 2.8% higher in Springfield |
| Healthcare index | 96.1 | 99.5 | 3.6% higher in Springfield |
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 $91,358 in Springfield to maintain your standard of living.
Climate, safety, and demographics side by side.
Springfield, IL is about 8.6% cheaper overall than San Antonio, TX, based on our cost-of-living index. Housing costs are roughly 32% higher in San Antonio than in Springfield. If you earn $80,000 in San Antonio, you'd need about $73,087 in Springfield to keep the same standard of living.