Trip from Saint John, MO to Florissant, MO

Drive Time

14m

Distance

7.9 mi

13 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$1

one way

EV Charging

Loading...

station data

Best Time to Leave

4 AM
0h 13m ★
6 AM
0h 14m
8 AM
0h 17m
10 AM
0h 15m
12 PM
0h 15m
3 PM
0h 15m
5 PM
0h 17m
8 PM
0h 13m ★

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Downtown Florissant, MO, MO

Florissant, MO

Yaroslav Shuraev

Trip Overview

If you are looking for a quick and straightforward commute between Saint John and Florissant, this 7.9-mile journey is an efficient way to get across the region. The drive typically takes about 14 minutes, making it a perfect candidate for a single-day trip. You will navigate through the Midwest landscape using a combination of the Inner Belt Expressway, North Hanley Road, and West Saint Anthony Lane. Budgeting is simple here, as you can expect to spend approximately $1 on fuel for the entire route. Since the drive is so short, you do not need to worry about overnight stops or extensive travel planning.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

0 planned breaks

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

4 miles from Saint John, MO

A natural place for your longest stop of the day , about 6m into the drive .

Drive Character

This trip offers a mixed driving experience, balancing high-speed transit with local navigation. You will spend about 46% of your time on the highway, with your longest uninterrupted stretch covering 3.6 miles along the Inner Belt Expressway. As you transition off the expressway, the route shifts into a more standard local drive through the surrounding Missouri communities. Expect the pace to fluctuate as you move from the faster highway environment onto North Hanley Road and West Saint Anthony Lane. The combination of these road types keeps the 14-minute drive feeling varied as you reach your destination.

Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 11 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Inner Belt Expressway is the longest continuous segment at about 3.6 miles.

Elevation Profile

Mostly flat terrain

646 ft 527 ft

Total Climb

35 ft

Total Descent

152 ft

Highest Point

646 ft

Elevation Range

119 ft

How Hard Is This Drive?

This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.1 miles in near Marshall Road.

Route Complexity 4/10

Easy - simple navigation with a manageable amount of wheel time

This is a straightforward 14m drive. You will face about 8 decision points, but nothing that requires special attention if you follow navigation.

Where does it get tricky?

The main spots that need attention: at 0.1 miles (Marshall Road): Navigation decision point; at 0.4 miles (MO 180 / Saint Charles Rock Road): Navigation decision point; at 1.3 miles (I 170 / Inner Belt Expressway): Merge point - match speed before joining. Lane positioning matters here.

Critical Maneuvers

5 of 8 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

4
0.1 mi into trip | ~0m in | Marshall Road

Turn left onto Marshall Road

Navigation decision point

4
0.4 mi into trip | ~1m in | MO 180 / Saint Charles Rock Road

At end of road, turn left onto MO 180 / Saint Charles Rock Road

Navigation decision point

5
1.3 mi into trip | ~3m in | I 170 / Inner Belt Expressway

Merge onto I 170 / Inner Belt Expressway

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight left lanes.
7
4.9 mi into trip | ~7m in

Take the exit toward North Hanley Road

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the slight right lane. Exit 9C Toward North Hanley Road
4
7.3 mi into trip | ~12m in | South New Florissant Road

Turn left onto South New Florissant Road

Navigation decision point

Main Roads

Road Distance Duration
Inner Belt Expressway 3.6 mi 4m
North Hanley Road 1 mi 1m
West Saint Anthony Lane 0.7 mi 1m
South New Florissant Road 0.6 mi 1m
Saint Charles Rock Road 0.6 mi 1m
Graham Road 0.5 mi 1m
Marshall Road 0.4 mi 1m
Mavis Place <0.1 mi <1m
Longest stretch: Inner Belt Expressway — 3.6 mi, about 4m

Turn-by-Turn Driving Directions

Step-by-step road directions between Saint John, MO and Florissant, MO.

1

Start on Mavis Place

324 ft · 19 sec · Mavis Place
2

Turn left onto Marshall Road

0.4 mi · 1 min · Marshall Road
3

At end of road, turn left onto MO 180

0.6 mi · 1 min · Saint Charles Rock Road
4

Take the ramp

0.3 mi · 22 sec
Toward I 170 North
5

Merge onto I 170

3.6 mi · 4 min · Inner Belt Expressway
Use the straight / slight left lanes.
6

Take the exit

0.2 mi · 23 sec
Exit 9C Toward North Hanley Road Use the slight right lane.
7

Turn left onto North Hanley Road

1.0 mi · 1 min · North Hanley Road
8

Continue on Graham Road

0.5 mi · 1 min · Graham Road
9

Turn right onto West Saint Anthony Lane

0.7 mi · 1 min · West Saint Anthony Lane
10

Turn left onto South New Florissant Road

0.6 mi · 1 min · South New Florissant Road
11

Arrive at destination

North New Florissant Road

Trip Plan

Because this is a short, 7.9-mile transit, you have plenty of flexibility regarding your departure time. Since the trip is quick, you likely won't need to plan for formal rest stops or meal breaks during the drive. Keep in mind that your fuel costs will be minimal, requiring only about $1 to complete the distance. To ensure a smooth experience, pay close attention to your transitions between the Inner Belt Expressway and the local surface streets. Being prepared for these changes in road type is the best way to handle this brief, simple route with confidence.

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 4 miles from Saint John, MO, or about 6m into the drive.
The longest continuous stretch on this route runs about 3.6 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 7.9 miles or 14m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 4 miles or 6m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 11m

Traffic, exits, and arrival timing usually matter more near Florissant, MO than in the middle of the route.

Before You Leave

+

Open the route before leaving Saint John, MO so your first major turns are already loaded.

+

Leave with enough water and a charging cable within reach, not packed away.

+

Check your fuel range against the first long segment, especially if you are starting outside city service areas.

Day 1

Settle into the route from Saint John, MO

This is one driving day of about 7.9 miles and 14m.

Your first comfortable stop window is around 80 miles from Saint John, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
You may only need one short stretch stop if conditions stay smooth.
The longest stretch is on Inner Belt Expressway for about 3.6 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 4 mi from Saint John, MO · 6m into the drive

Downtown Alton, IL, IL

Mid-route town

Meal stop

Alton, IL

4 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Alton, IL

Fuel and coffee

A short stop after about 7.9 miles helps settle the day before fatigue starts building.

Alton, IL

Meal break

The midpoint is around 4 miles from Saint John, MO, which is a good place for a longer meal and fuel stop.

Arriving in Florissant, MO

The final approach into Florissant, MO usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Florissant, MO.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Regular Gas

$1.20 one way

$2.40 round trip

$3.86/gal 25.4 MPG avg 3 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.25 $1.32 $2.65
premium $4.80 $1.49 $2.98
diesel $5.64 $1.76 $3.51

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$1

Meals

$25–$50

Total

$26–$51

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 2.8 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $1 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 2.4 0 $0.83 $0.38
Efficient EV 2 0 $0.69 $0.32
EV Truck/SUV 3.2 0 $1.11 $0.51

Gas CO2

3 kg

EV CO2

1 kg (67% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast data refreshed 11 hours ago

Origin

Saint John, MO

Afternoon in Saint John on Sunday

Local time

3:53 PM

CDT

Current temp

62°F

Mostly Cloudy

S 9 mph 2% chance Live forecast

Special Weather Statement

Special Weather Statement issued April 12 at 12:21AM CDT by NWS Paducah KY

Flood Warning

Flood Warning issued April 11 at 9:46PM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

Destination

Florissant, MO

Afternoon in Florissant on Sunday

Local time

3:53 PM

CDT

Current temp

62°F

Partly Cloudy

S 10 mph 2% chance Live forecast

Special Weather Statement

Special Weather Statement issued April 12 at 12:21AM CDT by NWS Paducah KY

Flood Warning

Flood Warning issued April 11 at 9:46PM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

Very similar conditions

Both ends of the route are sitting at about the same temperature right now.

Road read

14m on the road

The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Saint John, MO to Florissant, MO covers 7.9 miles and takes about 14m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Inner Belt Expressway, North Hanley Road, West Saint Anthony Lane. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 4 miles from Saint John, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $1.20 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a straightforward 14m drive. You will face about 8 decision points, but nothing that requires special attention if you follow navigation.
The main spots that need attention: at 0.1 miles (Marshall Road): Navigation decision point; at 0.4 miles (MO 180 / Saint Charles Rock Road): Navigation decision point; at 1.3 miles (I 170 / Inner Belt Expressway): Merge point - match speed before joining. Lane positioning matters here.
The route from Saint John, MO to Florissant, MO does not surface many named destination signs beyond the main corridor.

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