City comparison
Frederick, MD is about 1,400 miles (2,200 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 Frederick, MD to San Antonio, TX takes about 2 h 46 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.
Frederick, MD is on Eastern Time and San Antonio, TX is on Central Time — a 1-hour difference. When it's noon in Frederick, it's 11 a.m. in San Antonio, which puts Frederick 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 78,390 in Frederick — about 18.4× larger by population. By land area, San Antonio covers about 500 sq mi vs 24 sq mi for Frederick.
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 | Frederick | San Antonio | Difference |
|---|---|---|---|
| Median rent | $1,614/mo | $1,189/mo | 35.7% higher in Frederick |
| Median home value | $343,800 | $198,000 | 73.6% higher in Frederick |
| Median household income | $89,981 | $59,593 | 51.0% higher in Frederick |
| Groceries index | 103.8 | 94.2 | 10.2% higher in Frederick |
| Utilities index | 106.4 | 83.3 | 27.7% higher in Frederick |
| Transportation index | 102.0 | 96.6 | 5.5% higher in Frederick |
| Healthcare index | 101.5 | 96.1 | 5.6% higher in Frederick |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Frederick, you'd need $78,675 in San Antonio to maintain your standard of living.
Climate, safety, and demographics side by side.
San Antonio, TX is about 21.3% cheaper overall than Frederick, MD, based on our cost-of-living index. Housing costs are roughly 50% higher in Frederick than in San Antonio. If you earn $80,000 in Frederick, you'd need about $62,940 in San Antonio to keep the same standard of living.