City comparison
Great Falls, MT is about 1,400 miles (2,300 km) from San Antonio, TX 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 Great Falls, MT to San Antonio, TX takes about 2 h 51 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.
Great Falls, MT is on Mountain Time and San Antonio, TX is on Central Time — a 1-hour difference. When it's noon in Great Falls, it's 1 p.m. in San Antonio, which puts Great Falls 1 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 60,373 in Great Falls — about 23.9× larger by population. By land area, San Antonio covers about 500 sq mi vs 23 sq mi for Great Falls.
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 | Great Falls | San Antonio | Difference |
|---|---|---|---|
| Median rent | $828/mo | $1,189/mo | 43.6% higher in San Antonio |
| Median home value | $223,700 | $198,000 | 13.0% higher in Great Falls |
| Median household income | $58,272 | $59,593 | 2.3% higher in San Antonio |
| Groceries index | 96.7 | 94.2 | 2.7% higher in Great Falls |
| Utilities index | 77.7 | 83.3 | 7.2% higher in San Antonio |
| Transportation index | 99.3 | 96.6 | 2.7% higher in Great Falls |
| Healthcare index | 99.2 | 96.1 | 3.2% higher in Great Falls |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Great Falls, you'd need $99,261 in San Antonio to maintain your standard of living.
Climate, safety, and demographics side by side.
San Antonio, TX is about 0.7% cheaper overall than Great Falls, MT, based on our cost-of-living index. If you earn $80,000 in Great Falls, you'd need about $79,409 in San Antonio to keep the same standard of living.