Origin
Florissant, MO
Night in Florissant on Saturday
Local time
11:27 PM
CDT
Current temp
83°F
Unavailable
Live forecast
Trip from Florissant, MO to Des Peres, MO
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
27m
Distance
19.2 mi
31 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 25m
★
6 AM
0h 27m
8 AM
0h 32m
10 AM
0h 29m
12 PM
0h 29m
3 PM
0h 29m
5 PM
0h 32m
8 PM
0h 26m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Florissant, MO
Wikimedia Commons
Des Peres, MO
Valeria Boltneva
Trip Overview
Florissant, MO to Des Peres, MO is 19.2 miles and takes about 27 minutes via Rosemary Straub Davison Highway, with a fuel budget near $3 and enough daylight to finish in a day. This short trip stays within Missouri and the Midwest region, making it a convenient local drive. Given its brief duration, it's an ideal option for a quick errand, a short commute, or a brief scenic detour if you're in the area. You'll be navigating through familiar suburban landscapes for the entirety of this straightforward journey. Plan for a simple, no-fuss transit between these two Missouri locales.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Rosemary Straub Davison Highway | 14.4 mi | 17m |
| Lindbergh Boulevard | 1.7 mi | 3m |
| Washington Street | 1 mi | 1m |
| Manchester Road | 0.9 mi | 1m |
| North New Florissant Road | <0.1 mi | <1m |
Longest stretch:
Rosemary Straub Davison Highway
— 14.4 mi, about 17m
Turn-by-Turn Driving Directions
Step-by-step road directions between Florissant, MO and Des Peres, 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
14 mi
·
17 min
·
Rosemary Straub Davison Highway
Use the straight / slight right lanes.
6
Take the exit
0.3 mi
·
21 sec
Exit 9
Toward MO 100: Manchester Road
Use the slight right lane.
7
Keep slight left at fork
0.3 mi
·
51 sec
Toward MO 100 East: Manchester Road East
Use the slight left lane.
8
Keep slight left at fork
285 ft
·
9 sec
Toward MO 100 East: Manchester Road
9
Continue on this road
0.1 mi
·
17 sec
·
this road
Exit 9
Toward MO 100 East: Manchester Road
10
Turn slight left onto MO 100
0.9 mi
·
1 min
·
Manchester Road
11
Arrive at destination
MO 100
Heads-up: tricky spots
5 of 75 decision points cluster between mile 0 and 18.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0 mi into trip
|
~0m in
|
Washington Street
Turn right onto Washington Street
Navigation decision point
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.
7
17.5 mi into trip
|
~24m in
Take the exit toward MO 100: Manchester Road
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 9
Toward MO 100: Manchester Road
8
17.8 mi into trip
|
~24m in
Keep slight left at fork toward MO 100 East: Manchester Road East
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward MO 100 East: Manchester Road East
6
18.1 mi into trip
|
~25m in
Keep slight left at fork toward MO 100 East: Manchester Road
Highway fork - watch signs carefully
Toward MO 100 East: Manchester Road
Fuel & Cost
Regular Gas
$3.00 one way
$6.00 round trip
$3.97/gal
25.4 MPG avg
7 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $3.30 | $6.59 |
| premium | $4.89 | $3.69 | $7.39 |
| diesel | $5.61 | $4.24 | $8.48 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 6.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 71% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 5.8 | 0 | $2.02 | $0.92 |
| Efficient EV | 4.8 | 0 | $1.68 | $0.77 |
| EV Truck/SUV | 7.7 | 0 | $2.69 | $1.23 |
Gas CO2
7 kg
EV CO2
2 kg (71% 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
Des Peres, MO
Night in Des Peres on Saturday
Local time
11:27 PM
CDT
Current temp
79°F
Unavailable
Live forecast
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
4 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
27m 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.
What kind of drive is this?
This route is characterized as a 'turn-heavy local drive' with a 0% highway share. You'll encounter frequent turns as you navigate surface streets and boulevards, rather than a continuous highway experience. The longest uninterrupted stretch you'll experience is 14.4 miles on Rosemary Straub Davison Highway. Expect a driving rhythm dictated by traffic lights and intersections as you transition from one local road to another. This drive feels more like a series of connected neighborhood journeys than a long-haul trip.
Only 0% highway — the rest is turn-by-turn surface driving.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 14.4 mi on Rosemary Straub Davison Highway.
How Hard Is This Drive?
6/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 7 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Washington Street.
Driving Effort
6/10
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 19.2 miles you will encounter 7 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: near the start (Washington Street): Navigation decision point; at 3.1 miles (I 270 / Rosemary Straub Davison Highway): Merge point - match speed before joining. Lane positioning matters here; at 17.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 27m. Total distance: 19.2 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
27m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 14.4 miles on Rosemary Straub Davison Highway. The full list of main roads is in the Roads section above.
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 Des Peres, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: near the start (Washington Street): Navigation decision point; at 3.1 miles (I 270 / Rosemary Straub Davison Highway): Merge point - match speed before joining. Lane positioning matters here; at 17.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
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 Des Peres, 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, and NPS for national parks. See our methodology for refresh cadence and limitations.
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