City comparison
Port Arthur, TX is about 1,000 miles (1,600 km) from Sierra Vista, AZ 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 Port Arthur, TX to Sierra Vista, AZ takes about 1 h 58 min, covering roughly 1,000 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.
Port Arthur, TX is on Central Time and Sierra Vista, AZ is on Mountain Time — a 1-hour difference. When it's noon in Port Arthur, it's 11 a.m. in Sierra Vista, which puts Port Arthur 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.
Port Arthur has a population of 55,897, vs 45,212 in Sierra Vista — about 1.2× larger by population. By land area, Sierra Vista covers about 150 sq mi vs 76 sq mi for Port Arthur.
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 | Port Arthur | Sierra Vista | Difference |
|---|---|---|---|
| Median rent | $938/mo | $1,080/mo | 15.1% higher in Sierra Vista |
| Median home value | $91,500 | $215,900 | 136.0% higher in Sierra Vista |
| Median household income | $45,357 | $70,899 | 56.3% higher in Sierra Vista |
| Groceries index | 94.2 | 96.9 | 2.9% higher in Sierra Vista |
| Utilities index | 84.2 | 94.9 | 12.8% higher in Sierra Vista |
| Transportation index | 96.6 | 100.3 | 3.8% higher in Sierra Vista |
| Healthcare index | 96.1 | 100.2 | 4.3% higher in Sierra Vista |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Port Arthur, you'd need $99,514 in Sierra Vista to maintain your standard of living.
Climate, safety, and demographics side by side.
Port Arthur and Sierra Vista have nearly identical overall cost-of-living indices. Housing costs are roughly 11% higher in Port Arthur than in Sierra Vista. If you earn $80,000 in Port Arthur, you'd need about $79,611 in Sierra Vista to keep the same standard of living.