How far is Florissant, MO from Vandalia, MO?

The driving distance from Florissant, MO to Vandalia, MO is about 93.5 miles (150.4 km), with a travel time of about 01h 58m by car.

  • The straight-line flight distance is about 72.2 miles (116.2 km).
  • For a round trip, plan for roughly 03h 56m 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
93.45 mi
01h 58m
Flight
72.2 mi
116.19 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
72.2 mi
Kilometers
116.19 km
Flight Time
00h 08m

Driving Distance

Road route
93.45 mi
Kilometers
150.4 km
Drive Time
01h 58m

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 58m.

Arrival Snapshot
Arrive in Vandalia
Thu, Apr 16, 2:47 AM CDT
Return by in Florissant
Thu, Apr 16, 4:45 AM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Florissant
2026-04-16T00:49
Arrive Vandalia
Thu, Apr 16, 2:47 AM CDT
Route Timing
01h 58m
One way by road
Best Departure Window
8:00 AM to 10:00 AM CDT
Aim for a morning departure
Arrive between
9:58 AM to 11:58 AM CDT

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

Leave by
2:34 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
Troy
MO

City in Lincoln County, Montana, USA

From Florissant
46.7 mi
00h 59m
To Vandalia
46.8 mi
00h 59m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
83°F
Thursday

Chance Showers And Thunderstorms

Starts
Thu, Apr 16 6:00 AM CDT
Wind
10 mph SW
Destination
80°F
Thursday

Isolated Rain Showers

Starts
Thu, Apr 16 6:00 AM CDT
Wind
8 to 12 mph SW

Driving Route Map

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

Turn-by-Turn Driving Directions

Step-by-step road directions between Florissant and Vandalia.

  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

    3.7 mi · 5 min · Rosemary Straub Davison Highway

  6. 6

    Take the exit slight right toward I 70: Saint Louis, Kansas City

    1492 ft · 26 sec

  7. 7

    Continue on I 70: Saint Louis, Kansas City

    2478 ft · 43 sec

  8. 8

    Keep slight right to continue on I 70 West: Kansas City

    2439 ft · 42 sec

  9. 9

    Merge slight left

    21.6 mi · 27 min

  10. 10

    Take the exit slight right toward US 61 North: Hannibal

    2234 ft · 48 sec

  11. 11

    Merge slight left onto Avenue of the Saints

    46.5 mi · 55 min · Avenue of the Saints

  12. 12

    Take the exit slight right toward US 54: Mexico, Louisiana

    1540 ft · 39 sec

  13. 13

    Turn left

    11.7 mi · 15 min

  14. 14

    Keep slight left

    4.9 mi · 7 min

  15. 15

    Turn right onto North Main Street

    15 m · 1 sec · North Main Street

  16. 16

    Arrive at your destination

    0 m · 1 sec · North Main Street

Car Route Details

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

OSRM road route
Drive Character

Interchange-aware route

The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.

Directions
16 steps
4 turns on the saved route
Ramps & Exits
7
3 merges, 4 ramps or exits
Navigation Density
17.1 / 100 mi
Decision points by distance
Main Roads
Avenue of the Saints
46.5 mi · 50%
I 70 West
22.1 mi · 24%
US 54
5.17 mi · 6%
Rosemary Straub Davison Highway
3.75 mi · 4%
Lindbergh Boulevard
2.07 mi · 2%
Washington Street
1.03 mi · 1%
Longest Stretch

Avenue of the Saints

Merge slight left onto Avenue of the Saints

46.5 mi · 00h 55m

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 58m
Day trip friendly
Same-Day Return
03h 56m
Round-trip wheel time
Road vs Air
+21.3 mi
72.2 mi direct line
Halfway Stop
Troy
00h 59m from Florissant
Leave By
2:34 PM CDT
Morning start is best
Weather Watch

Chance Showers And Thunderstorms leaving Florissant and Isolated Rain Showers near Vandalia.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Florissant to Vandalia?

The road trip is about 93.5 miles (150.4 km) and usually takes 01h 58m 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?

Troy is a useful midpoint, sitting about 46.7 miles from Florissant and 46.8 miles from Vandalia.

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

The direct path is about 72.2 miles (116.2 km), while the road route adds roughly 21.3 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 2:34 PM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $12.44 one way or $24.89 round trip. Estimated CO2 is about 29.3 kg one way.

What should you check before leaving?

Before you leave, expect Chance Showers And Thunderstorms around Florissant and Isolated Rain Showers near Vandalia.

Stop Ideas Near Troy

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

Mid-route Guidance
Local place coverage is thin around Troy, 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 Troy.

RAIL

Washington

47 mi away
301 West Front St.
RAIL

Hermann

49 mi away
Wharf & Gutenberg Sts.
RAIL

Kirkwood

67 mi away
110 West Argonne Dr.
RAIL

Alton

74 mi away
3400 College Ave.

Flight Path Map

This map shows the direct air route between Florissant and Vandalia. Straight-line distance: 72.2 mi (116.19 km).

Florissant

#1 Florissant

The most populous city in St.

Population50,795
Coordinates38.7892200, -90.3226100
Altitude175
CountryUnited States
Vandalia

#2 Vandalia

City in Audrain and Ralls Counties, Missouri, USA

Population3,496
Coordinates39.3108700, -91.4884900
Altitude232
CountryUnited States
Start: Florissant (-90.32261, 38.78922)
End: Vandalia (-91.48849, 39.31087)

Estimated Travel Time

Distance: 150 km by road

SpeedTime
30 mph (48.3 km/h)03h 06m
40 mph (64.37 km/h)02h 20m
50 mph (80.47 km/h)01h 52m
60 mph (96.56 km/h)01h 33m
70 mph (112.65 km/h)01h 20m
80 mph (129 km/h)01h 09m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
3.3 gal
12.48 L · about $12.44
Round trip
$24.89
6.6 gal · 24.96 L
Estimated CO2
29.3 kg one way
Round trip: 58.7 kg / 129 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $12.44 $24.89
Mid-grade $4.25 $14.03 $28.07
Premium $4.65 $15.36 $30.72
Diesel $5.30 $17.50 $35.01

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

There is no time difference between Florissant and Vandalia. The current time is 00:49:13.

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.