How far is Florissant, MO from Saint Clair, MO?

The driving distance from Florissant, MO to Saint Clair, MO is about 57.2 miles (92 km), with a travel time of about 01h 14m by car.

  • The straight-line flight distance is about 47 miles (75.6 km).
  • For a round trip, plan for roughly 02h 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.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
57.19 mi
01h 14m
Flight
46.96 mi
75.58 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from Florissant.

Flight Distance

Direct air line
46.96 mi
Kilometers
75.58 km
Flight Time
00h 05m

Driving Distance

Road route
57.19 mi
Kilometers
92.04 km
Drive Time
01h 14m

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 14m.

Arrival Snapshot
Arrive in Saint Clair
Sat, May 30, 5:14 PM CDT
Return by in Florissant
Sat, May 30, 6:29 PM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Florissant
2026-05-30T16:00
Arrive Saint Clair
Sat, May 30, 5:14 PM CDT
Route Timing
01h 14m
One way by road
Best Departure Window
8:00 AM to 10:00 AM CDT
Aim for a morning departure
Arrive between
9:14 AM to 11:14 AM CDT

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
4:02 PM CDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in Florissant
9:30 PM CDT
Morning start is best

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.

Mid-route stop
Sherman
MO

Unincorporated community in St.

From Florissant
28.6 mi
00h 37m
To Saint Clair
28.6 mi
00h 37m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
80°F
Saturday

Partly Sunny then Chance Showers And Thunderstorms

Starts
Sat, May 30 6:00 AM CDT
Wind
3 to 9 mph E
Destination
65°F
Overnight

Slight Chance Rain Showers

Starts
Sat, May 30 1:00 AM CDT
Wind
0 mph

Driving Route Map

The map below follows the saved road route between Florissant and Saint Clair.

Turn-by-Turn Driving Directions

Step-by-step road directions between Florissant and Saint Clair.

  1. 1

    Start on North New Florissant Road

    26 m · 6 sec · North New Florissant Road

  2. 2

    Turn right onto Washington Street

    1 mi · 2 min · Washington Street

  3. 3

    Turn left onto Lindbergh Boulevard

    1.7 mi · 3 min · Lindbergh Boulevard

  4. 4

    Take the ramp slight right

    1912 ft · 47 sec

  5. 5

    Merge slight left onto Rosemary Straub Davison Highway

    16.1 mi · 20 min · Rosemary Straub Davison Highway

  6. 6

    Take the exit slight right toward Dougherty Ferry Road

    1331 ft · 28 sec

  7. 7

    Turn right onto Dougherty Ferry Road

    2.5 mi · 5 min · Dougherty Ferry Road

  8. 8

    Continue on Forest Avenue

    1.6 km · 2 min · Forest Avenue

  9. 9

    Turn left

    1.2 km · 1 min

  10. 10

    Take the exit slight right

    32 m · 3 sec

  11. 11

    Turn right onto North Highway Drive

    748 ft · 14 sec · North Highway Drive

  12. 12

    Take the ramp straight toward I 44 West, US 50 West: Rolla

    936 ft · 13 sec

  13. 13

    Merge slight left onto Henry Shaw Ozark Corridor

    31.5 mi · 35 min · Henry Shaw Ozark Corridor

  14. 14

    Take the exit slight right toward MO 47: Saint Clair, Union

    1625 ft · 44 sec

  15. 15

    Turn left onto North Main Street

    1.3 mi · 3 min · North Main Street

  16. 16

    Arrive at your destination

    0 m · 1 sec · South Main Street

Car Route Details

A richer read on the saved driving route between Florissant and Saint Clair.

OSRM road route
Drive Character

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.

Directions
16 steps
6 turns on the saved route
Ramps & Exits
7
2 merges, 5 ramps or exits
Navigation Density
28 / 100 mi
Decision points by distance
Main Roads
Henry Shaw Ozark Corridor
31.5 mi · 55%
Rosemary Straub Davison Highway
16.1 mi · 28%
Dougherty Ferry Road
2.78 mi · 5%
Lindbergh Boulevard
2.07 mi · 4%
North Main Street
1.29 mi · 2%
Washington Street
1.03 mi · 2%
Longest Stretch

Henry Shaw Ozark Corridor

Merge slight left onto Henry Shaw Ozark Corridor

31.5 mi · 00h 35m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
01h 14m
Day trip friendly
Same-Day Return
02h 28m
Round-trip wheel time
Road vs Air
+10.2 mi
47 mi direct line
Halfway Stop
Sherman
00h 37m from Florissant
Leave By
4:02 PM CDT
Morning start is best
Weather Watch

Partly Sunny then Chance Showers And Thunderstorms leaving Florissant and Slight Chance Rain Showers near Saint Clair.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Florissant to Saint Clair?

The road trip is about 57.2 miles (92 km) and usually takes 01h 14m 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?

Sherman is a useful midpoint, sitting about 28.6 miles from Florissant and 28.6 miles from Saint Clair.

How much longer is the road route than the straight-line distance?

The direct path is about 47 miles (75.6 km), while the road route adds roughly 10.2 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 4:02 PM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $7.62 one way or $15.23 round trip. Estimated CO2 is about 18 kg one way.

What should you check before leaving?

Before you leave, expect Partly Sunny then Chance Showers And Thunderstorms around Florissant and Slight Chance Rain Showers near Saint Clair.

Stop Ideas Near Sherman

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Sherman, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Sherman.

RAIL

Kirkwood

17 mi away
110 West Argonne Dr.
RAIL

Gateway Transportation Center

35 mi away
551 South 16th St.
RAIL

Washington

37 mi away
301 West Front St.
RAIL

Alton

57 mi away
3400 College Ave.

Flight Path Map

This map shows the direct air route between Florissant and Saint Clair. Straight-line distance: 46.96 mi (75.58 km).

Florissant

#1 Florissant

The most populous city in St.

Population50,795
Coordinates38.7892200, -90.3226100
Altitude175
CountryUnited States
Saint Clair

#2 Saint Clair

City in Franklin County, Missouri, United States

Population4,689
Coordinates38.3453300, -90.9809700
Altitude234
CountryUnited States
Start: Florissant (-90.32261, 38.78922)
End: Saint Clair (-90.98097, 38.34533)

Estimated Travel Time

Distance: 92 km by road

SpeedTime
30 mph (48.3 km/h)01h 54m
40 mph (64.37 km/h)01h 25m
50 mph (80.47 km/h)01h 08m
60 mph (96.56 km/h)00h 57m
70 mph (112.65 km/h)00h 49m
80 mph (129 km/h)00h 42m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
2.02 gal
7.64 L · about $7.62
Round trip
$15.23
4.04 gal · 15.28 L
Estimated CO2
18 kg one way
Round trip: 35.9 kg / 79 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $7.62 $15.23
Mid-grade $4.25 $8.59 $17.18
Premium $4.65 $9.40 $18.80
Diesel $5.30 $10.71 $21.43

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 30, 2026

There is no time difference between Florissant and Saint Clair. The current time is 16:00:31.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.