City comparison
Joliet, IL is about 700 miles (1,100 km) from Philadelphia, PA in a straight line. By road, the drive is roughly 850 miles, or about 14 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 Joliet, IL to Philadelphia, PA takes about 1 h 23 min, covering roughly 700 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.
Joliet, IL is on Central Time and Philadelphia, PA is on Eastern Time — a 1-hour difference. When it's noon in Joliet, it's 1 p.m. in Philadelphia, which puts Joliet 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.
Philadelphia has a population of 1,593,208, vs 150,221 in Joliet — about 10.6× larger by population. By land area, Philadelphia covers about 135 sq mi vs 66 sq mi for Joliet.
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 | Joliet | Philadelphia | Difference |
|---|---|---|---|
| Median rent | $1,174/mo | $1,250/mo | 6.5% higher in Philadelphia |
| Median home value | $233,800 | $215,500 | 8.5% higher in Joliet |
| Median household income | $84,971 | $57,537 | 47.7% higher in Joliet |
| Groceries index | 106.3 | 97.0 | 9.5% higher in Joliet |
| Utilities index | 84.3 | 112.3 | 33.2% higher in Philadelphia |
| Transportation index | 100.2 | 101.7 | 1.6% higher in Philadelphia |
| Healthcare index | 100.4 | 102.7 | 2.3% higher in Philadelphia |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Joliet, you'd need $102,124 in Philadelphia to maintain your standard of living.
Climate, safety, and demographics side by side.
Joliet, IL is about 2.1% cheaper overall than Philadelphia, PA, based on our cost-of-living index. If you earn $80,000 in Joliet, you'd need about $81,699 in Philadelphia to keep the same standard of living.