How far is Eureka, MO from Florissant, MO?
The driving distance from Eureka, MO to Florissant, MO is about 105.8 miles (170.3 km), with a travel time of about 01h 44m by car.
- The straight-line flight distance is about 83 miles (133.6 km).
- For a round trip, plan for roughly 03h 28m 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 01h 44m.
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 Jefferson County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Chance Showers And Thunderstorms
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Eureka and Florissant.
Turn-by-Turn Driving Directions
Step-by-step road directions between Eureka and Florissant.
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1
Start on the route
2.5 mi · 6 min
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2
Turn right
7.1 mi · 11 min
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3
Enter the roundabout and take exit 2 toward North Kingshighway Street
39 m · 2 sec · North Kingshighway Street
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4
Exit the roundabout onto North Kingshighway Street
2.4 mi · 4 min · North Kingshighway Street
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5
Continue on North King's Highway
2.8 mi · 4 min · North King's Highway
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6
Turn left
2816 ft · 1 min
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7
Take the ramp right toward I 55 North: Saint Louis
1135 ft · 28 sec
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8
Merge slight left
59.4 mi · 1 hr 4 min
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9
Continue on Rosa Parks Highway
1.3 mi · 2 min · Rosa Parks Highway
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10
Take the exit slight right toward I 270 West, I 255 East: Kansas City, Chicago
1279 ft · 27 sec
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11
Keep slight left to continue on I 270 West: Kansas City
118 m · 8 sec
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12
Continue on I 270 West
1.2 km · 1 min
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13
Merge slight left
24.4 mi · 31 min
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14
Take the exit slight right toward US 67
1565 ft · 45 sec
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15
Turn left onto North Lindbergh Boulevard
1.8 mi · 3 min · North Lindbergh Boulevard
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16
Turn right onto West Washington Street
1 mi · 2 min · West Washington Street
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17
Turn left onto North New Florissant Road
26 m · 1 sec · North New Florissant Road
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18
Arrive at your destination
0 m · 1 sec · North New Florissant Road
Car Route Details
A richer read on the saved driving route between Eureka 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 55 North
Merge slight left
59.4 mi · 01h 04m
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.
Mostly Sunny then Chance Showers And Thunderstorms leaving Eureka and Partly Cloudy near Florissant.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Eureka to Florissant?
The road trip is about 105.8 miles (170.3 km) and usually takes 01h 44m 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?
Crystal City is a useful midpoint, sitting about 52.4 miles from Eureka and 53.3 miles from Florissant.
How much longer is the road route than the straight-line distance?
The direct path is about 83 miles (133.6 km), while the road route adds roughly 22.8 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 3:02 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.07 one way or $28.13 round trip. Estimated CO2 is about 33.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Eureka and Partly Cloudy near Florissant.
Stop Ideas Near Crystal City
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 Crystal City.
Kirkwood
Gateway Transportation Center
Washington
Alton
Flight Path Map
This map shows the direct air route between Eureka and Florissant. Straight-line distance: 83.03 mi (133.63 km).
#1 Eureka
City located in St.
| Population | 11,323 |
| Coordinates | 37.6789400, -89.7370500 |
| Altitude | 195 |
| 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: 170 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 31m |
| 40 mph (64.37 km/h) | 02h 38m |
| 50 mph (80.47 km/h) | 02h 06m |
| 60 mph (96.56 km/h) | 01h 45m |
| 70 mph (112.65 km/h) | 01h 30m |
| 80 mph (129 km/h) | 01h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $14.07 | $28.13 |
| Mid-grade | $4.25 | $15.86 | $31.73 |
| Premium | $4.65 | $17.36 | $34.72 |
| Diesel | $5.30 | $19.78 | $39.57 |
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 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.