Origin
Florissant, MO
Late night in Florissant on Monday
Local time
3:44 AM
CDT
Current temp
46°F
Unavailable
Live forecast
Trip from Florissant, MO to Clayton, MO
Drive Time
20m
Distance
12.8 mi
21 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$2
one way
EV Charging
Loading...
station data
Best Time to Leave
4 AM
0h 19m
★
6 AM
0h 21m
8 AM
0h 25m
10 AM
0h 22m
12 PM
0h 22m
3 PM
0h 22m
5 PM
0h 24m
8 PM
0h 20m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Florissant, MO
Yaroslav Shuraev
Clayton, MO
cottonbro studio
Trip Overview
If you are planning a trip from Florissant to Clayton, Missouri, you are looking at a quick 12.8-mile transit through the Midwest. Expect a brief 20-minute drive that serves perfectly as a simple day trip, requiring no overnight stays. With a fuel cost estimated at just $2, this is an incredibly economical route to navigate. The path keeps you entirely within the state of Missouri, moving between these two suburban hubs with minimal fuss. Because the entire journey is so short, you have total flexibility in your schedule, making it an easy commute or errand run. Whether you are traveling for business or local exploration, this straightforward connection is designed for efficiency rather than a long-haul experience.
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
6.4 miles from Florissant, MO
A natural place for your longest stop of the day , about 10m into the drive .
Drive Character
Expect a mixed driving experience that transitions between local thoroughfares and faster transit options. You will spend about 37% of your travel time on highways, primarily utilizing the Inner Belt Expressway. The longest uninterrupted stretch you will encounter is a 4.7-mile segment on the Inner Belt, providing a brief period of steady cruising. Outside of that expressway portion, the remainder of the route relies on North Hanley Road and North New Florissant Road to bridge the gap. You will find that the personality of the drive shifts from typical suburban surface streets to a more direct, high-speed highway flow before settling back into local traffic as you reach your destination.
This route has more turning and local-road decision points than a simple highway run.
There are about 13 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Dunn Road is one of the defining roads on this drive.
Elevation Profile
Mostly flat terrain
646 ft
524 ft
Total Climb
349 ft
Total Descent
364 ft
Highest Point
646 ft
~8 mi in
Elevation Range
122 ft
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. Navigation is very simple — set it and forget it for most of the drive.
Route Complexity
1/10
Very easy - short and simple to drive
The drive from Florissant, MO to Clayton, MO is easy. At 20m with 0% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
This route does not have any notably tricky sections. Most of the drive from Florissant, MO to Clayton, MO is straightforward, with well-signed roads and simple exits.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Dunn Road | Unavailable | Refreshing |
| I 270 West | Unavailable | Refreshing |
| Rosemary Straub Davison Highway | Unavailable | Refreshing |
| I 170 South | Unavailable | Refreshing |
| Inner Belt Expressway | Unavailable | Refreshing |
| MO 180 | Unavailable | Refreshing |
| Saint Charles Rock Road | Unavailable | Refreshing |
| North Hanley Road | Unavailable | Refreshing |
Per-road distance and duration are being refreshed from OSRM for this route.
Longest stretch:
Dunn Road
— detailed segment metrics are refreshing.
Turn-by-Turn Driving Directions
Step-by-step road directions between Florissant, MO and Clayton, MO.
1
Start on North New Florissant Road
1.2 mi
·
2 min
·
North New Florissant Road
2
Turn right onto Dunn Road
0.2 mi
·
29 sec
·
Dunn Road
3
Take the ramp straight toward I 270 West
0.2 mi
·
31 sec
·
I 270 West
4
Merge slight left onto Rosemary Straub Davison Highway
0.5 mi
·
37 sec
·
Rosemary Straub Davison Highway
5
Take the exit slight right toward I 170 South: Clayton
0.5 mi
·
47 sec
·
I 170 South: Clayton
6
Continue on Inner Belt Expressway
4.7 mi
·
5 min
·
Inner Belt Expressway
7
Take the exit slight right toward MO 180: Saint Charles Rock Road
0.1 mi
·
16 sec
·
MO 180: Saint Charles Rock Road
8
Keep slight left to continue on MO 180: Saint Charles Rock Road
427 ft
·
11 sec
·
MO 180: Saint Charles Rock Road
9
Turn left onto Saint Charles Rock Road
0.7 mi
·
1 min
·
Saint Charles Rock Road
10
Turn right onto North Hanley Road
3.9 mi
·
7 min
·
North Hanley Road
11
Turn left onto Wydown Boulevard
0.6 mi
·
1 min
·
Wydown Boulevard
12
Turn right onto Hillvale Drive
177 ft
·
8 sec
·
Hillvale Drive
13
Arrive at your destination
Trip Plan
Since this is a short 12.8-mile trip with zero mandatory stops, you have the advantage of total departure flexibility. You won't need to worry about complex refueling strategies or rest breaks given the low $2 fuel cost and the brief 20-minute duration. To ensure the smoothest travel, keep an eye on traffic patterns along the Inner Belt Expressway, as that 4.7-mile stretch is your primary opportunity to make up time. Because there are no scheduled stops required for a trip of this length, feel free to head out whenever it best fits your agenda. Planning your departure to avoid peak transit hours on the expressway will help you maintain that estimated 20-minute arrival time consistently.
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 6.4 miles from Florissant, MO, or about 10m into the drive.
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 12.8 miles or 20m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 6.4 miles or 10m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 17m
Traffic, exits, and arrival timing usually matter more near Clayton, MO than in the middle of the route.
Before You Leave
+
Open the route before leaving Florissant, 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 Florissant, MO
This is one driving day of about 12.8 miles and 20m.
Your first comfortable stop window is around 80 miles from Florissant, 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.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 6.4 mi from Florissant, MO · 10m into the drive
Mid-route town
Meal stop
6 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
Fuel and coffee
A short stop after about 12.8 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 6.4 miles from Florissant, MO, which is a good place for a longer meal and fuel stop.
Arriving in Clayton, MO
The final approach into Clayton, 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 Clayton, 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
$1.94 one way
$3.89 round trip
$3.86/gal
25.4 MPG avg
5 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $2.14 | $4.29 |
| premium | $4.80 | $2.42 | $4.83 |
| diesel | $5.64 | $2.84 | $5.69 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$2
Meals
$25–$50
Total
$27–$52
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 4.5 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $1 in charging · 0 stops · 75% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 3.8 | 0 | $1.34 | $0.61 |
| Efficient EV | 3.2 | 0 | $1.12 | $0.51 |
| EV Truck/SUV | 5.1 | 0 | $1.79 | $0.82 |
Gas CO2
4 kg
EV CO2
1 kg (75% 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.
Destination
Clayton, MO
Late night in Clayton on Monday
Local time
3:44 AM
CDT
Current temp
81°F
Unavailable
Live forecast
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
35 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
20m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Florissant, MO to Clayton, MO covers 12.8 miles and takes about 20m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Dunn Road, I 270 West, Rosemary Straub Davison Highway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 6.4 miles from Florissant, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $1.94 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.
The drive from Florissant, MO to Clayton, MO is easy. At 20m with 0% highway, most drivers will find it relaxed and low-stress.
This route does not have any notably tricky sections. Most of the drive from Florissant, MO to Clayton, MO is straightforward, with well-signed roads and simple exits.
The route from Florissant, MO to Clayton, MO does not surface many named destination signs beyond the main corridor.
Mostly flat terrain. The route ranges from 524 ft to 646 ft elevation with about 349 ft of total climbing.
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