City comparison
Billings, MT is about 1,100 miles (1,700 km) from St. Louis, MO in a straight line. By road, the drive is roughly 1,300 miles, or about 22 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 Billings, MT to St. Louis, MO takes about 2 h 7 min, covering roughly 1,100 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.
Billings, MT is on Mountain Time and St. Louis, MO is on Central Time — a 1-hour difference. When it's noon in Billings, it's 1 p.m. in St. Louis, which puts Billings 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.
St. Louis has a population of 298,018, vs 117,093 in Billings — about 2.5× larger by population. By land area, St. Louis covers about 62 sq mi vs 46 sq mi for Billings.
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 | Billings | St. Louis | Difference |
|---|---|---|---|
| Median rent | $1,064/mo | $938/mo | 13.4% higher in Billings |
| Median home value | $285,300 | $174,100 | 63.9% higher in Billings |
| Median household income | $69,692 | $52,941 | 31.6% higher in Billings |
| Groceries index | 96.7 | 99.7 | 3.0% higher in St. Louis |
| Utilities index | 77.2 | 71.9 | 7.4% higher in Billings |
| Transportation index | 99.3 | 98.5 | 0.8% higher in Billings |
| Healthcare index | 99.2 | 98.7 | 0.5% higher in Billings |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Billings, you'd need $100,068 in St. Louis to maintain your standard of living.
Climate, safety, and demographics side by side.
Billings and St. Louis have nearly identical overall cost-of-living indices. If you earn $80,000 in Billings, you'd need about $80,055 in St. Louis to keep the same standard of living.