How far is Florissant, MO from Sullivan, MO?
The driving distance from Florissant, MO to Sullivan, MO is about 72.1 miles (116 km), with a travel time of about 01h 30m by car.
- The straight-line flight distance is about 60.5 miles (97.4 km).
- For a round trip, plan for roughly 03h 00m 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 30m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Florissant and Sullivan.
Turn-by-Turn Driving Directions
Step-by-step road directions between Florissant and Sullivan.
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1
Start on North New Florissant Road
26 m · 6 sec · North New Florissant Road
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2
Turn right onto Washington Street
1 mi · 2 min · Washington Street
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3
Turn left onto Lindbergh Boulevard
1.7 mi · 3 min · Lindbergh Boulevard
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4
Take the ramp slight right
1912 ft · 47 sec
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5
Merge slight left onto Rosemary Straub Davison Highway
16.1 mi · 20 min · Rosemary Straub Davison Highway
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6
Take the exit slight right toward Dougherty Ferry Road
1331 ft · 28 sec
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7
Turn right onto Dougherty Ferry Road
2.5 mi · 5 min · Dougherty Ferry Road
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8
Continue on Forest Avenue
1.6 km · 2 min · Forest Avenue
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9
Turn left
1.2 km · 1 min
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10
Take the exit slight right
32 m · 3 sec
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11
Turn right onto North Highway Drive
748 ft · 14 sec · North Highway Drive
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12
Take the ramp straight toward I 44 West, US 50 West: Rolla
936 ft · 13 sec
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13
Merge slight left onto Henry Shaw Ozark Corridor
46.1 mi · 51 min · Henry Shaw Ozark Corridor
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14
Take the exit slight right toward MO 185 South, MO AF: Sullivan, Potosi
983 ft · 32 sec
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15
Turn left
1427 ft · 33 sec
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16
Turn right onto East Springfield Road
1.3 km · 2 min · East Springfield Road
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17
Turn left onto North Clark Street
1773 ft · 52 sec · North Clark Street
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18
At the end of the road, turn right onto West Main Street
629 ft · 21 sec · West Main Street
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19
Turn left onto Hughes Ford Road
36 m · 5 sec · Hughes Ford Road
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20
Turn left onto West Washington Street
103 m · 11 sec · West Washington Street
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21
Turn right
17 m · 4 sec
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22
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Florissant and Sullivan.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Henry Shaw Ozark Corridor
Merge slight left onto Henry Shaw Ozark Corridor
46.1 mi · 00h 51m
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 Showers And Thunderstorms leaving Florissant and Mostly Sunny near Sullivan.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Florissant to Sullivan?
The road trip is about 72.1 miles (116 km) and usually takes 01h 30m 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?
Pacific is a useful midpoint, sitting about 36 miles from Florissant and 36 miles from Sullivan.
How much longer is the road route than the straight-line distance?
The direct path is about 60.5 miles (97.4 km), while the road route adds roughly 11.6 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 3:30 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.58 one way or $19.16 round trip. Estimated CO2 is about 22.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Florissant and Mostly Sunny near Sullivan.
Stop Ideas Near Pacific
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 Pacific.
Washington
Kirkwood
Gateway Transportation Center
Hermann
Flight Path Map
This map shows the direct air route between Florissant and Sullivan. Straight-line distance: 60.53 mi (97.42 km).
#1 Florissant
The most populous city in St.
| Population | 50,795 |
| Coordinates | 38.7892200, -90.3226100 |
| Altitude | 175 |
| Country | United States |
#2 Sullivan
City in Missouri
| Population | 7,117 |
| Coordinates | 38.2081000, -91.1604200 |
| Altitude | 299 |
| Country | United States |
End: Sullivan (-91.16042, 38.2081)
Estimated Travel Time
Distance: 116 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 24m |
| 40 mph (64.37 km/h) | 01h 48m |
| 50 mph (80.47 km/h) | 01h 26m |
| 60 mph (96.56 km/h) | 01h 12m |
| 70 mph (112.65 km/h) | 01h 01m |
| 80 mph (129 km/h) | 00h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $9.58 | $19.16 |
| Mid-grade | $4.25 | $10.80 | $21.61 |
| Premium | $4.65 | $11.82 | $23.64 |
| Diesel | $5.30 | $13.47 | $26.94 |
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 · May 05, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.