How far is Sullivan, MO from Florissant, MO?
The driving distance from Sullivan, MO to Florissant, MO is about 75.7 miles (121.9 km), with a travel time of about 01h 12m by car.
- The straight-line flight distance is about 60.5 miles (97.4 km).
- For a round trip, plan for roughly 02h 25m 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 12m.
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 Missouri
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sullivan and Florissant.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sullivan and Florissant.
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1
Start on the route
17 m · 6 sec
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2
Turn right onto West Washington Street
35 m · 3 sec · West Washington Street
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3
Enter the roundabout and take exit 3 toward West Vine Street
54 m · 7 sec · West Vine Street
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4
Exit the roundabout onto West Vine Street
635 ft · 23 sec · West Vine Street
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5
Turn left onto South Church Street
1965 ft · 56 sec · South Church Street
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6
At the end of the road, turn right onto West Springfield Road
1.3 km · 1 min · West Springfield Road
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7
Turn left
990 ft · 23 sec
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8
Take the ramp right toward I 44 East: Saint Louis
842 ft · 21 sec
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9
Merge slight left
49.9 mi · 55 min
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10
Take the exit slight right toward I 270: Chicago, Memphis
871 ft · 19 sec
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11
Keep slight left to continue on I 270 North: Chicago
551 ft · 12 sec
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12
Continue on I 270 North: Chicago
2638 ft · 53 sec
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13
Merge slight left
18.8 mi · 24 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 Sullivan 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 44 East
Merge slight left
49.9 mi · 00h 55m
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 leaving Sullivan 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 Sullivan to Florissant?
The road trip is about 75.7 miles (121.9 km) and usually takes 01h 12m 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 37.1 miles from Sullivan and 38.6 miles from Florissant.
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 15.2 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 4:04 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.07 one way or $20.14 round trip. Estimated CO2 is about 23.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Sullivan and Chance Showers And Thunderstorms near Florissant.
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 Sullivan and Florissant. Straight-line distance: 60.53 mi (97.42 km).
#1 Sullivan
City in Missouri
| Population | 7,117 |
| Coordinates | 38.2081000, -91.1604200 |
| Altitude | 299 |
| 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: 122 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 31m |
| 40 mph (64.37 km/h) | 01h 53m |
| 50 mph (80.47 km/h) | 01h 30m |
| 60 mph (96.56 km/h) | 01h 15m |
| 70 mph (112.65 km/h) | 01h 04m |
| 80 mph (129 km/h) | 00h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $10.07 | $20.14 |
| Mid-grade | $4.25 | $11.36 | $22.71 |
| Premium | $4.65 | $12.43 | $24.85 |
| Diesel | $5.30 | $14.16 | $28.32 |
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.