How far is Herculaneum, MO from Florissant, MO?
The driving distance from Herculaneum, MO to Florissant, MO is about 47.3 miles (76.1 km), with a travel time of about 00h 50m by car.
- The straight-line flight distance is about 36.1 miles (58.1 km).
- For a round trip, plan for roughly 01h 40m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 50m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Saint Louis County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Herculaneum and Florissant.
Turn-by-Turn Driving Directions
Step-by-step road directions between Herculaneum and Florissant.
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1
Start on the route
17 m · 7 sec
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2
Turn right onto Joachim Avenue
1 km · 2 min · Joachim Avenue
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3
At the end of the road, turn right onto Commercial Boulevard
1.3 mi · 2 min · Commercial Boulevard
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4
Turn left
2237 ft · 45 sec
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5
Take the ramp slight right toward I 55 North: Saint Louis
1719 ft · 42 sec
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6
Merge slight left
13.9 mi · 15 min
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7
Continue on Rosa Parks Highway
1.3 mi · 2 min · Rosa Parks Highway
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8
Take the exit slight right toward I 270 West, I 255 East: Kansas City, Chicago
1279 ft · 27 sec
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9
Keep slight left to continue on I 270 West: Kansas City
118 m · 8 sec
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10
Continue on I 270 West
1.2 km · 1 min
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11
Merge slight left
24.4 mi · 31 min
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12
Take the exit slight right toward US 67
1565 ft · 45 sec
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13
Turn left onto North Lindbergh Boulevard
1.8 mi · 3 min · North Lindbergh Boulevard
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14
Turn right onto West Washington Street
1 mi · 2 min · West Washington Street
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15
Turn left onto North New Florissant Road
26 m · 1 sec · North New Florissant Road
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16
Arrive at your destination
0 m · 1 sec · North New Florissant Road
Car Route Details
A richer read on the saved driving route between Herculaneum and Florissant.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 270 West
Merge slight left
24.4 mi · 00h 31m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Chance Rain Showers then Chance Showers And Thunderstorms leaving Herculaneum and Chance Showers And Thunderstorms near Florissant.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Herculaneum to Florissant?
The road trip is about 47.3 miles (76.1 km) and usually takes 00h 50m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Sunset Hills is a useful midpoint, sitting about 23.2 miles from Herculaneum and 24 miles from Florissant.
How much longer is the road route than the straight-line distance?
The direct path is about 36.1 miles (58.1 km), while the road route adds roughly 11.2 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 4:50 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.30 one way or $12.60 round trip. Estimated CO2 is about 14.8 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers then Chance Showers And Thunderstorms around Herculaneum and Chance Showers And Thunderstorms near Florissant.
Stop Ideas Near Sunset Hills
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Sunset Hills.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Herculaneum and Florissant. Straight-line distance: 36.12 mi (58.13 km).
#1 Herculaneum
Roman town
| Population | 4,261 |
| Coordinates | 38.2683900, -90.3801200 |
| Altitude | 135 |
| Country | United States |
#2 Florissant
The most populous city in St.
| Population | 50,795 |
| Coordinates | 38.7892200, -90.3226100 |
| Altitude | 175 |
| Country | United States |
End: North New Florissant Road (-90.32261, 38.78922)
Estimated Travel Time
Distance: 76 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 34m |
| 40 mph (64.37 km/h) | 01h 10m |
| 50 mph (80.47 km/h) | 00h 56m |
| 60 mph (96.56 km/h) | 00h 47m |
| 70 mph (112.65 km/h) | 00h 40m |
| 80 mph (129 km/h) | 00h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $6.30 | $12.60 |
| Mid-grade | $4.25 | $7.10 | $14.21 |
| Premium | $4.65 | $7.77 | $15.54 |
| Diesel | $5.30 | $8.86 | $17.72 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Missouri · Apr 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.