Trip from Saint John, MO to Florissant, MO

Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards

Drive Time

14m

Distance

7.9 mi

13 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

one way

EV Charging

Unknown

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.

Best Time Drive vs Fly

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Saint John, MO

Erik Mclean

Florissant, MO

Wikimedia Commons

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.

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.

Start on Mavis Place

324 ft · 19 sec · Mavis Place

Turn left onto Marshall Road

0.4 mi · 1 min · Marshall Road

At end of road, turn left onto MO 180

0.6 mi · 1 min · Saint Charles Rock Road

Take the ramp

0.3 mi · 22 sec

Toward I 170 North

Merge onto I 170

3.6 mi · 4 min · Inner Belt Expressway

Use the straight / slight left lanes.

Take the exit

0.2 mi · 23 sec

Exit 9C Toward North Hanley Road Use the slight right lane.

Turn left onto North Hanley Road

1.0 mi · 1 min · North Hanley Road

Continue on Graham Road

0.5 mi · 1 min · Graham Road

Turn right onto West Saint Anthony Lane

0.7 mi · 1 min · West Saint Anthony Lane

Turn left onto South New Florissant Road

0.6 mi · 1 min · South New Florissant Road

Arrive at destination

North New Florissant Road

Heads-up: tricky spots

5 of 8

5 decision points cluster between mile 0.1 and 7.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

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

Turn left onto Marshall Road

Navigation decision point

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

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.

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

7.3 mi into trip | ~12m in | South New Florissant Road

Turn left onto South New Florissant Road

Navigation decision point

Fuel & Cost

Regular Gas

$1.24 one way

$2.47 round trip

$3.97/gal 25.4 MPG avg 3 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$4.36	$1.36	$2.71
premium	$4.89	$1.52	$3.04
diesel	$5.61	$1.74	$3.49

No toll roads detected on this route.

Drive Cost (one way)

Fuel

Estimated CO2 emission: 2.8 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

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

Vehicle Type	kWh	DC Fast	Home Charge
Average EV	2.4	$0.83	$0.38
Efficient EV	2	$0.69	$0.32
EV Truck/SUV	3.2	$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 as of Apr 12, 2026

Origin

Saint John, MO

Afternoon in Saint John on Sunday

Local time

4:50 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

4:50 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

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.

What kind of drive is this?

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.

46% highway, the rest on surface roads — varied driving throughout.

11 navigation steps total — most of the decisions cluster near the start and finish.

Longest single stretch: 3.6 mi on Inner Belt Expressway.

How Hard Is This Drive?

4/10

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.

Driving Effort 4/10

Easy - simple navigation with a manageable amount of wheel time

Balances navigation complexity with total 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.

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

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 14m. Total distance: 7.9 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

14m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

First-Time Driver

Mostly highway driving (46%). Straightforward navigation.

Scenic Drive

Mixed highway & surface route profile with national parks nearby.

Frequently Asked Questions

The longest stretch is about 3.6 miles on Inner Belt Expressway. The full list of main roads is in the Roads section above.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

Yes — Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.

Yes. A round trip is manageable in a single day if you plan a break at Florissant, MO before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, and NPS for national parks. See our methodology for refresh cadence and limitations.

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Explore More

Explore more options from Saint John, MO or browse trips ending in Florissant, MO.

Looking for more statewide routes? Browse MO road trips.

Trip from Saint John, MO to Florissant, MO

Best Time to Leave

Trip Overview

Main Roads

Turn-by-Turn Driving Directions

Heads-up: tricky spots

Fuel & Cost

Travel Intel

Saint John, MO

Florissant, MO

Same local time

Very similar conditions

14m on the road

What kind of drive is this?

How Hard Is This Drive?

Elevation Profile

Who Is This Route For?

Frequently Asked Questions

Which road carries most of the drive?

Is this a good trip with kids?

Where does this route get tricky?

Are there national parks near this route?

Can I do this as a round trip in one go?

How this page is built

Explore More

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