Origin
Crestwood, MO
Late night in Crestwood on Sunday
Local time
5:07 AM
CDT
Current temp
55°F
Unavailable
Live forecast
Trip from Crestwood, 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
31m
Distance
18.8 mi
30 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 29m
★
6 AM
0h 31m
8 AM
0h 37m
10 AM
0h 33m
12 PM
0h 33m
3 PM
0h 34m
5 PM
0h 37m
8 PM
0h 30m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Crestwood, MO
Theodore Nguyen
Florissant, MO
Wikimedia Commons
Trip Overview
This short 18.8-mile drive from Crestwood, MO to Florissant, MO is a manageable trip, estimated to take around 31 minutes. With a fuel cost of about $3, it's an economical option for a single-day excursion within the Midwest region. The route primarily utilizes the Inner Belt Expressway, South Elm Avenue, and South Brentwood Boulevard, offering a mixed driving experience. Given its brevity, this route is perfectly suited for a day trip, allowing for plenty of flexibility in your schedule without the need for an overnight stay.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Inner Belt Expressway | 9.3 mi | 11m |
| South Elm Avenue | 2.4 mi | 5m |
| South Brentwood Boulevard | 1.6 mi | 3m |
| Watson Road | 1.3 mi | 2m |
| North Hanley Road | 1 mi | 1m |
| West Saint Anthony Lane | 0.7 mi | 1m |
| South New Florissant Road | 0.6 mi | 1m |
| Graham Road | 0.5 mi | 1m |
Longest stretch:
Inner Belt Expressway
— 9.3 mi, about 11m
Turn-by-Turn Driving Directions
Step-by-step road directions between Crestwood, MO and Florissant, MO.
1
Start on MO 366
1.3 mi
·
2 min
·
Watson Road
2
Turn left onto South Elm Avenue
2.4 mi
·
5 min
·
South Elm Avenue
3
Turn right onto East Kirkham Avenue
0.5 mi
·
55 sec
·
East Kirkham Avenue
4
Continue on South Brentwood Boulevard
1.6 mi
·
3 min
·
South Brentwood Boulevard
5
Turn right onto Eager Road
0.2 mi
·
32 sec
·
Eager Road
6
Turn left
0.4 mi
·
32 sec
Toward I 170 North
7
Merge onto I 170
9.3 mi
·
11 min
·
Inner Belt Expressway
Use the straight / slight right lanes.
8
Take the exit
0.2 mi
·
23 sec
Exit 9C
Toward North Hanley Road
Use the slight right lane.
9
Turn left onto North Hanley Road
1.0 mi
·
1 min
·
North Hanley Road
10
Continue on Graham Road
0.5 mi
·
1 min
·
Graham Road
11
Turn right onto West Saint Anthony Lane
0.7 mi
·
1 min
·
West Saint Anthony Lane
12
Turn left onto South New Florissant Road
0.6 mi
·
1 min
·
South New Florissant Road
13
Arrive at destination
North New Florissant Road
Heads-up: tricky spots
5 of 75 decision points cluster between mile 1.3 and 18.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
3
1.3 mi into trip
|
~2m in
|
South Elm Avenue
Turn left onto South Elm Avenue
Navigation decision point
5
6.1 mi into trip
|
~12m in
Turn left toward I 170 North
Navigation decision point
Toward I 170 North
5
6.5 mi into trip
|
~13m 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 right lanes.
7
15.8 mi into trip
|
~25m 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
18.2 mi into trip
|
~30m in
|
South New Florissant Road
Turn left onto South New Florissant Road
Navigation decision point
Fuel & Cost
Regular Gas
$2.94 one way
$5.88 round trip
$3.97/gal
25.4 MPG avg
7 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $3.23 | $6.45 |
| premium | $4.89 | $3.62 | $7.24 |
| diesel | $5.61 | $4.15 | $8.30 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 6.6 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 | 5.6 | 0 | $1.97 | $0.90 |
| Efficient EV | 4.7 | 0 | $1.65 | $0.75 |
| EV Truck/SUV | 7.5 | 0 | $2.63 | $1.20 |
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
Florissant, MO
Late night in Florissant on Sunday
Local time
5:07 AM
CDT
Current temp
83°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
28 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
31m 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?
You'll find this drive to be a mix of speeds, with about 50% of the journey on highways. The longest continuous stretch you'll encounter is 9.3 miles on the Inner Belt Expressway, providing a good period of consistent travel. As you transition between the Inner Belt Expressway and surface streets like South Elm Avenue and South Brentwood Boulevard, expect the pace to change, offering a varied driving experience that keeps things interesting. The overall profile is a mixed drive, reflecting these shifts in road type and traffic.
50% highway, the rest on surface roads — varied driving throughout.
13 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 9.3 mi on Inner Belt Expressway.
How Hard Is This Drive?
3/10
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 1.3 miles in near South Elm Avenue.
Driving Effort
3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 31m drive. You will face about 7 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 1.3 miles (South Elm Avenue): Navigation decision point; at 6.1 miles: Navigation decision point; at 6.5 miles (I 170 / Inner Belt Expressway): Merge point - match speed before joining. Lane positioning matters here.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 31m. Total distance: 18.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
31m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (50%). Straightforward navigation.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 9.3 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.
The main spots that need attention: at 1.3 miles (South Elm Avenue): Navigation decision point; at 6.1 miles: Navigation decision point; at 6.5 miles (I 170 / Inner Belt Expressway): Merge point - match speed before joining. 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 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, and NPS for national parks. See our methodology for refresh cadence and limitations.
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