Bonne Terre, MO to O'Fallon, MO is 82.5 miles and takes about 1 hour 41 minutes via US 67 and I-55/I-270, with a fuel budget near $13 and enough daylight to finish in a day. This Midwest drive keeps you within Missouri for its entirety, offering a straightforward connection between two points. It's designed for efficiency, meaning you'll spend most of your time on major highways. Consider this trip if you need a quick, no-fuss journey and want to minimize time on the road.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
41.2 miles from Bonne Terre, MO
A natural place for your longest stop of the day
, about 48m into the drive
.
Main Roads
Road
Distance
Duration
US 67
23.1 mi
26m
I 55
20.5 mi
22m
I 270
18.1 mi
22m
I 70
13.6 mi
16m
Rosa Parks Highway
1.3 mi
1m
East Terra Lane
0.9 mi
1m
Benham Street
0.7 mi
1m
South Main Street
0.5 mi
1m
Longest stretch:
US 67
— 23.1 mi, about 26m
Turn-by-Turn Driving Directions
Step-by-step road directions between Bonne Terre, MO and O'Fallon, MO.
1
Start on MO E
12 ft·6 sec·North Division Street
2
Turn left onto MO 47
0.3 mi·31 sec·Park Avenue
3
Continue on MO 47
0.7 mi·1 min·Benham Street
4
Take the ramp
0.2 mi·20 sec
Toward US 67 North: Saint Louis
5
Merge onto US 67
23 mi·26 min·US 67
6
Keep slight right at fork onto US 67
0.3 mi·27 sec·US 67
7
Take the exit
0.3 mi·49 sec
Toward I 55 North: Saint Louis
8
Merge onto I 55
21 mi·22 min·I 55
9
Continue on I 55
1.3 mi·1 min·Rosa Parks Highway
10
Take the exit
0.2 mi·27 sec
Exit 196Toward I 270 West, I 255 East: Kansas City, ChicagoUse the slight right lane.
11
Keep slight left at fork
388 ft·8 sec
Toward I 270 West: Kansas CityUse the slight left lane.
12
Continue on this road
0.7 mi·1 min·this road
Exit 196Toward I 270 West
13
Merge onto I 270
18 mi·22 min·I 270
Use the straight lane.
14
Take the exit
1.0 mi·1 min
Exit 20AToward I 70: Kansas City, Saint Louis, Saint Louis Lambert International AirportUse the slight right lane.
15
Keep slight left at fork
0.1 mi·11 sec
Toward I 70 West: Kansas CityUse the slight left lane.
16
Continue on this road
0.6 mi·57 sec·this road
Exit 20BToward I 70 West: Kansas City
17
Merge onto I 70
14 mi·16 min·I 70
Use the straight / slight right lanes.
18
Take the exit
390 ft·8 sec
Exit 218Toward MO K: O'Fallon, Main StreetUse the slight right lane.
19
Turn straight onto East Terra Lane
0.9 mi·1 min·East Terra Lane
Use the straight lane.
20
Turn right onto South Main Street
0.5 mi·1 min·South Main Street
21
Turn right
25 ft·1 sec
22
Arrive at destination
Trip Plan
Given the relatively short duration of 1 hour and 41 minutes, this route is easily manageable as a single-day trip. You have the flexibility to depart at your convenience, but leaving mid-morning can help you avoid the busiest commuter times. While 82.5 miles isn't long enough for extensive stops, keep an eye on your fuel gauge, as the longest stretch on US 67 is over 23 miles. It's always a good idea to top off your tank before departing Bonne Terre to ensure a smooth ride to O'Fallon.
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 41.2 miles from Bonne Terre, MO, or about 48m into the drive.
The longest continuous stretch on this route runs about 23.1 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 18 miles or 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 41.2 miles or 48m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 24m
Traffic, exits, and arrival timing usually matter more near O'Fallon, MO than in the middle of the route.
Before You Leave
+
Open the route before leaving Bonne Terre, MO so your first major turns are already loaded.
Day 1
Settle into the route from Bonne Terre, MO
This is one driving day of about 82.5 miles and 1h 41m.
Your first comfortable stop window is around 18 miles from Bonne Terre, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on US 67 for about 23.1 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 16
5 decision points cluster between mile 46.4 and 81 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
46.4 mi into trip|~53m in
Take the exit toward I 270 West, I 255 East: Kansas City, Chicago
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 196
Toward I 270 West, I 255 East: Kansas City, Chi...
8
46.6 mi into trip|~54m in
Keep slight left at fork toward I 270 West: Kansas City
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 270 West: Kansas City
8
65.6 mi into trip|~1h 18m in
Take the exit toward I 70: Kansas City, Saint Louis, Saint Louis Lambert International Airport
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 20A
Toward I 70: Kansas City, Saint Louis, Saint Lo...
7
66.6 mi into trip|~1h 19m in
Keep slight left at fork toward I 70 West: Kansas City
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 70 West: Kansas City
8
81 mi into trip|~1h 37m 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
$12.90 one way
$25.80 round trip
$3.97/gal25.4 MPG avg29 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$14.16
$28.32
premium
$4.89
$15.88
$31.75
diesel
$5.61
$18.21
$36.43
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$13
Meals
$25–$50
Total
$38–$63
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 28.9 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $9 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
24.8
0
$8.66
$3.96
Efficient EV
20.6
0
$7.22
$3.30
EV Truck/SUV
33
0
$11.55
$5.28
Gas CO2
29 kg
EV CO2
10 kg (66% 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 Apr 20, 2026
Origin
Bonne Terre, MO
Late night
in Bonne Terre on Tuesday
Local time
4:22 AM
CDT
Current temp
74°F
Unavailable
Live forecast
Destination
O'Fallon, MO
Late night
in O'Fallon on Tuesday
Local time
4:22 AM
CDT
Current temp
71°F
Unavailable
Live forecast
71°F
Arnold, MO
41 mi in
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
3 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
1h 41m 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.
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...
12 mi from route
~31 min detour
$19
near mile 48.3
Established by 1750, Ste. Geneviève was the first permanent European settlement in Missouri. Early French Canadian settlers were drawn here by the rich agricultural land known as Le Grand Champ (the B...
24 mi from route
~61 min detour
Free
near mile 8.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This is a highway-focused drive, with 91% of the 82.5 miles on major roadways like US 67 and I-55/I-270. You'll experience a significant stretch of 23.1 miles on US 67, which will likely feel like the most continuous part of your journey before merging onto interstate systems. Expect a steady pace for most of the trip, characteristic of connecting larger towns and cities via well-maintained highways. The character remains predominantly high-speed and direct throughout.
91% highway — fuel and pacing are the main things to plan.
22 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 23.1 mi on US 67.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on US 67 and I 55. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 46.4 miles in.
Driving Effort10/10
Demanding - stay alert through the decision-heavy sections
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 82.5 miles you will encounter 16 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 46.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 46.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 65.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Bonne Terre, MO and O'Fallon, MO, road signs point toward Chicago, Saint Louis and Saint Louis Lambert International Airport.
St. Charles, Missouri is outside of St. Louis on the bank of the Missouri River. It was Missouri's first state capital and was one of the first stops by Lewis and Clark on their journey to explore Louisiana Territory. The historic Main Street has largely been restored to its 1812-era appearance including gas lights a boardwalk and is lined with shops selling artwork, handicrafts, home decorations, antiques. There are also many restaurants.
Doable as a same-day drive at 1h 41m. Total distance: 82.5 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 41m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (91%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 23.1 miles on US 67. 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: at 46.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 46.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 65.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Gateway Arch National Park and Ste. Geneviève National Historical 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.
