Florissant, MO to Windsor, MO is 206.7 miles and takes about 4h 10m via I 70 and US 65, with a fuel budget near $33 and enough daylight to finish in a day. This trip stays within the Midwest, traveling entirely within Missouri. It's a straightforward, primarily highway drive connecting two points with minimal fuss. You'll find this route efficient for getting from point A to point B, especially if you're looking for a one-day transit.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
103.3 miles from Florissant, MO
A natural place for your longest stop of the day
, about 2h 3m into the drive
.
Main Roads
Road
Distance
Duration
I 70
154.2 mi
2h 58m
US 65
30.5 mi
38m
Whiteman Road
13.7 mi
20m
Rosemary Straub Davison Highway
3.7 mi
4m
Lindbergh Boulevard
1.7 mi
3m
Washington Street
1 mi
1m
North New Florissant Road
<0.1 mi
<1m
South Main Street
—
—
Some road-level metrics are being recalculated.
Longest stretch:
I 70
— 154.2 mi, about 2h 58m
Traffic on I-70
Hour-of-day weekday pattern from 42 FHWA count stations on your route.
Peak
4 PM
~3,683 veh/hr typical
· worst 4,355
Quietest
2 AM
~345 veh/hr
Peak-to-quiet ratio
10.7×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 105 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Florissant, MO and Windsor, MO.
1
Start on North New Florissant Road
87 ft·5 sec·North New Florissant Road
2
Turn right onto Washington Street
1.0 mi·1 min·Washington Street
3
Turn left onto US 67
1.7 mi·3 min·Lindbergh Boulevard
4
Take the ramp
0.4 mi·46 sec
Use the right lane.
5
Merge onto I 270
3.7 mi·4 min·Rosemary Straub Davison Highway
Use the straight / slight right lanes.
6
Take the exit
0.3 mi·25 sec
Exit 20AToward I 70: Saint Louis, Kansas City
7
Continue on this road
0.5 mi·42 sec·this road
Exit 20A-BToward I 70: Saint Louis, Kansas CityUse the slight left / slight right lanes.
8
Keep slight right at fork
0.5 mi·41 sec
Exit 20BToward I 70 West: Kansas CityUse the slight right lane.
9
Merge onto I 70
154 mi·2 hr 58 min·I 70
Use the straight / slight right lanes.
10
Take the exit
0.2 mi·37 sec
Exit 78AToward US 65 South: Sedalia
11
Merge onto US 65
31 mi·38 min·US 65
12
Take the exit
188 ft·5 sec
Toward MO 52 West: Windsor
13
Turn right onto MO 52
14 mi·20 min·Whiteman Road
14
Arrive at destination
MO 52
Trip Plan
Given the 4h 10m estimated drive time and 206.7 miles, this route is easily manageable in a single day. Aim to depart in the morning to maximize daylight and allow for potential brief stops. The longest stretch without a significant change in road type is 154.2 miles on I 70, so plan your fuel and rest stops accordingly before you hit that segment. The total fuel cost is estimated at $33, so keep an eye on your gauge, especially on the highway portions.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 103.3 miles from Florissant, MO, or about 2h 3m into the drive.
The longest continuous stretch on this route runs about 154.2 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 45 miles or 55m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 103.3 miles or 2h 3m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 20m
Traffic, exits, and arrival timing usually matter more near Windsor, 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 206.7 miles and 4h 10m.
Your first comfortable stop window is around 45 miles from Florissant, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 70 for about 154.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 10
5 decision points cluster between mile 3.1 and 8.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
3.1 mi into trip|~6m in|I 270 / Rosemary Straub Davison Highway
Merge onto I 270 / Rosemary Straub Davison Highway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
6.9 mi into trip|~10m in
Take the exit toward I 70: Saint Louis, Kansas City
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 20A
Toward I 70: Saint Louis, Kansas City
5
7.1 mi into trip|~11m in
Continue toward I 70: Saint Louis, Kansas City
Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Exit 20A-B
Toward I 70: Saint Louis, Kansas City
8
7.6 mi into trip|~12m in
Keep slight right at fork toward I 70 West: Kansas City
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Exit 20B
Toward I 70 West: Kansas City
5
8.1 mi into trip|~12m in|I 70
Merge onto I 70
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
Fuel & Cost
Regular Gas
$34.48 one way
$68.96 round trip
$4.24/gal25.4 MPG avg72 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.61
$37.47
$74.95
premium
$5.26
$42.80
$85.59
diesel
$6.18
$50.28
$100.57
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$34
Meals
$25–$50
Total
$59–$84
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 72.3 kg one way.
Prices: EIA weekly data, 2026-10-12.
Driving Electric?
About $22 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
62
0
$21.70
$9.92
Efficient EV
51.7
0
$18.09
$8.27
EV Truck/SUV
82.7
1
$28.94
$13.23
Gas CO2
72 kg
EV CO2
24 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 Oct 18, 2026
Origin
Florissant, MO
Morning
in Florissant on Monday
Local time
8:41 AM
CDT
Current temp
69°F
Sunny
S 7 mph0% chanceLive forecast
Destination
Windsor, MO
Morning
in Windsor on Monday
Local time
8:41 AM
CDT
Current temp
69°F
Sunny
S 5 to 10 mph0% chanceLive 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
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
4h 10m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Gateway Arch National Park
National Park
Gateway Arch National Park commemorates President Jefferson’s vision of a continental nation, the individuals and cultural groups who helped shape its history, St. Louis’ role in westward expansion, a...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
The drive from Florissant to Windsor is 89% highway, meaning you'll spend most of your time on faster roads. You'll encounter 154.2 miles on I 70, which is the longest continuous stretch. After that, you'll transition to US 65 and then Whiteman Road, indicating a shift to more local surface streets as you approach your destination. Expect a steady pace with fewer turns overall.
89% highway — fuel and pacing are the main things to plan.
14 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 154.2 mi on I 70.
How Hard Is This Drive?
6/10
This is a straightforward highway drive that stays mostly on I 70 and US 65. You will hit about 10 points where you need to pay attention to lane position or signs. The trickiest moment comes around 3.1 miles in near I 270 / Rosemary Straub Davison Highway.
Driving Effort6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 206.7 miles you will encounter 10 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 3.1 miles (I 270 / Rosemary Straub Davison Highway): Merge point - match speed before joining. Lane positioning matters here; at 6.9 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 7.1 miles: Lane positioning matters here. Multiple destination signs - pick the right one.
Doable as a same-day drive at 4h 10m. Total distance: 206.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 10m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (89%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 154.2 miles on I 70. The full list of main roads is in the Roads section above.
Yes — we found about 22 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Windsor, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 22 rest areas along the route for bathroom stops.
The main spots that need attention: at 3.1 miles (I 270 / Rosemary Straub Davison Highway): Merge point - match speed before joining. Lane positioning matters here; at 6.9 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 7.1 miles: Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.2 hours each way, an in-and-out day trip would put you behind the wheel for 8.4 hours — manageable with a long break at Windsor, MO, but most travelers stay overnight.
