Origin
Ferguson, MO
Night in Ferguson on Saturday
Local time
11:15 PM
CDT
Current temp
57°F
Unavailable
Live forecast
Trip from Ferguson, MO to O'Fallon, MO
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
33m
Distance
24.8 mi
40 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$4
one way
EV Charging
Good
6 stations
Best Time to Leave
4 AM
0h 31m
★
6 AM
0h 34m
8 AM
0h 40m
10 AM
0h 36m
12 PM
0h 35m
3 PM
0h 36m
5 PM
0h 39m
8 PM
0h 32m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Ferguson, MO
Lena Khrupina
O'Fallon, MO
Wikimedia Commons
Trip Overview
If you are planning a quick excursion from Ferguson to O'Fallon, Missouri, you are looking at a straightforward 24.8-mile trip. This drive typically takes about 33 minutes, making it an ideal day trip that requires no overnight stay. With a fuel budget of approximately $4, it is a highly economical route within the Midwest. You will rely primarily on I-70, Airport Road, and East Terra Lane to navigate between these two locations. Whether you are traveling for business or a brief change of scenery, the simplicity of this route ensures you can reach your destination without the stress of a long-haul journey.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 70 | 19.6 mi | 24m |
| Airport Road | 1.8 mi | 2m |
| East Terra Lane | 0.9 mi | 1m |
| Inner Belt Expressway | 0.8 mi | <1m |
| South Main Street | 0.5 mi | 1m |
| North Florissant Road | 0.3 mi | <1m |
| Carson Road | <0.1 mi | <1m |
Longest stretch:
I 70
— 19.6 mi, about 24m
Turn-by-Turn Driving Directions
Step-by-step road directions between Ferguson, MO and O'Fallon, MO.
1
Start on Carson Road
119 ft
·
12 sec
·
Carson Road
2
Turn left onto MO N
0.3 mi
·
48 sec
·
North Florissant Road
3
Turn left onto Airport Road
1.8 mi
·
2 min
·
Airport Road
Use the left lane.
4
Take the ramp
0.3 mi
·
19 sec
Toward I 170 South
5
Merge onto I 170
0.8 mi
·
59 sec
·
Inner Belt Expressway
6
Take the exit
0.4 mi
·
48 sec
Exit 7B
Toward I 70 West: Kansas City
Use the slight right lane.
7
Merge onto I 70
20 mi
·
24 min
·
I 70
Use the straight lane.
8
Take the exit
390 ft
·
8 sec
Exit 218
Toward MO K: O'Fallon, Main Street
Use the slight right lane.
9
Turn straight onto East Terra Lane
0.9 mi
·
1 min
·
East Terra Lane
Use the straight lane.
10
Turn right onto South Main Street
0.5 mi
·
1 min
·
South Main Street
11
Turn right
25 ft
·
1 sec
12
Arrive at destination
Heads-up: tricky spots
5 of 105 decision points cluster between mile 0 and 23.3 — 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
|
MO N / North Florissant Road
Turn left onto MO N / North Florissant Road
Navigation decision point
5
0.3 mi into trip
|
~1m in
|
Airport Road
Turn left onto Airport Road
Lane positioning matters here
Use the left lane.
7
3.2 mi into trip
|
~5m in
Take the exit toward I 70 West: Kansas City
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 7B
Toward I 70 West: Kansas City
5
3.7 mi into trip
|
~6m in
|
I 70
Merge onto I 70
Merge point - match speed before joining. Lane positioning matters here
Use the straight lane.
8
23.3 mi into trip
|
~30m in
Take the exit toward MO K: O'Fallon, Main Street
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 218
Toward MO K: O'Fallon, Main Street
Fuel & Cost
Regular Gas
$3.88 one way
$7.75 round trip
$3.97/gal
25.4 MPG avg
9 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $4.26 | $8.51 |
| premium | $4.89 | $4.77 | $9.55 |
| diesel | $5.61 | $5.48 | $10.95 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$4
Estimated CO2 emission: 8.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $3 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 7.4 | 0 | $2.60 | $1.19 |
| Efficient EV | 6.2 | 0 | $2.17 | $0.99 |
| EV Truck/SUV | 9.9 | 0 | $3.47 | $1.59 |
Gas CO2
9 kg
EV CO2
3 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.
Destination
O'Fallon, MO
Night in O'Fallon on Saturday
Local time
11:15 PM
CDT
Current temp
69°F
Partly Cloudy
SW 14 mph
9% chance
Live forecast
Severe Thunderstorm Warning
Severe Thunderstorm Warning issued April 13 at 9:04PM CDT until April 13 at 9:45PM CDT by NWS Kansas City/Pleasant Hill...
Tornado Warning
Tornado Warning issued April 13 at 9:04PM CDT until April 13 at 9:45PM CDT by NWS Kansas City/Pleasant Hill 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
12 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
33m 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?
Expect a highway-focused experience, as 82% of this route consists of high-speed travel. You will spend the bulk of your time on I-70, which accounts for the longest uninterrupted stretch of 19.6 miles. The character of the drive is efficient and direct, prioritizing speed over winding backroads or scenic detours. As you transition from the local connectors like Airport Road onto the interstate, the pace picks up significantly. It is a functional, no-nonsense drive that gets you from point A to point B with minimal complexity.
82% highway — fuel and pacing are the main things to plan.
12 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 19.6 mi on I 70.
How Hard Is This Drive?
6/10
This is a straightforward highway drive that stays mostly on I 70 and Airport Road. You will hit about 10 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near MO N / North Florissant Road.
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 24.8 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: near the start (MO N / North Florissant Road): Navigation decision point; at 0.3 miles (Airport Road): Lane positioning matters here; at 3.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
597 ft
508 ft
Total Climb
133 ft
Total Descent
103 ft
Highest Point
597 ft
~7.2 mi in
Elevation Range
90 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Ferguson, MO to O'Fallon, MO, road signs begin pointing toward Mo K: O'fallon along the way.
Mo K: O'fallon
23.3 mi in
|
~30m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 33m. Total distance: 24.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
33m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (82%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 19.6 miles on I 70. 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 O'Fallon, 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 (MO N / North Florissant Road): Navigation decision point; at 0.3 miles (Airport Road): Lane positioning matters here; at 3.2 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 O'Fallon, 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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