The drive from O'Fallon, MO to Eureka, MO covers 112.2 miles and takes about 2h 18m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Police Officer Steven Jarvis Memorial Highway, I 270, I 70 for much of the mileage,
and the overall profile is mixed drive.
The longest uninterrupted segment is about 57.5 miles on Police Officer Steven Jarvis Memorial Highway.
At current regular gas prices, budget about $17.54 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
56.1 miles from O'Fallon, MO
A natural place for your longest stop of the day
, about 1h 8m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 18m. Total distance: 112.2 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 18m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (34%). Some complex stretches to watch for.
Scenic Drive
Mixed drive route profile with national parks nearby.
Drive Character
The drive from O'Fallon, MO to Eureka, MO covers 112.2 miles and takes about 2h 18m, using a mix of highways and local roads.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 21 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Police Officer Steven Jarvis Memorial Highway is the longest continuous segment at about 57.5 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.6 miles in near Drennen Parkway.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 15 significant decision points across 112.2 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.6 miles (Drennen Parkway): Lane positioning matters here; at 1.5 miles: Lane positioning matters here; at 15.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 15 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
5
0.6 mi into trip|~1m in|Drennen Parkway
Turn left onto Drennen Parkway
Lane positioning matters here
Use the left lane.
5
1.5 mi into trip|~3m in
Take the ramp toward I 70 East: Saint Louis
Lane positioning matters here
Use the slight left lane.
Toward I 70 East: Saint Louis
8
15.1 mi into trip|~20m in
Take the exit toward I 270: Chicago, Memphis
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 232
Toward I 270: Chicago, Memphis
7
15.2 mi into trip|~20m in
Keep slight right at fork toward I 270 South: Memphis
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward I 270 South: Memphis
8
34.8 mi into trip|~44m in
Take the exit toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 1A
Toward I 55, US 61, US 67: Saint Louis, Memphis...
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between O'Fallon, MO and Eureka, MO, road signs point toward Memphis and Mo M: Brewer.
Memphis
15.1 mi in|~20m
Mo M: Brewer
96.4 mi in|~1h 51m
Main Roads
Road
Distance
Duration
Police Officer Steven Jarvis Memorial Highway
57.5 mi
1h 1m
I 270
19 mi
23m
I 70
13.5 mi
16m
South Kingshighway Street
7.2 mi
10m
US 61
5.3 mi
7m
MO D
2.5 mi
5m
Officer Thomas G. Smith, Jr. Memorial Highway
1.8 mi
2m
Rosa Parks Highway
1.5 mi
1m
Longest stretch:
Police Officer Steven Jarvis Memorial Highway
— 57.5 mi, about 1h 1m
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon, MO and Eureka, MO.
1
Start on this road
25 ft·7 sec·this road
2
Turn left onto South Main Street
0.6 mi·1 min·South Main Street
3
Turn left onto Drennen Parkway
0.9 mi·1 min·Drennen Parkway
Use the left lane.
4
Take the ramp
438 ft·6 sec
Toward I 70 East: Saint LouisUse the slight left lane.
5
Merge onto I 70
14 mi·16 min·I 70
Use the straight / slight right lanes.
6
Take the exit
0.2 mi·12 sec
Exit 232Toward I 270: Chicago, MemphisUse the slight right lane.
7
Keep slight right at fork
0.4 mi·33 sec
Toward I 270 South: MemphisUse the slight right lane.
8
Continue on this road
0.1 mi·10 sec·this road
Exit 232Toward I 270 South: Memphis
9
Merge onto I 270
19 mi·23 min·I 270
Use the straight lane.
10
Take the exit
0.4 mi·27 sec
Exit 1AToward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry RoadUse the straight / slight right lanes.
11
Keep slight right at fork
0.4 mi·43 sec
Toward I 55 South: Memphis
12
Merge onto I 55
1.5 mi·1 min·Rosa Parks Highway
13
Continue on I 55
1.8 mi·2 min·Officer Thomas G. Smith, Jr. Memorial Highway
14
Continue on I 55
57 mi·1 hr 1 min·Police Officer Steven Jarvis Memorial Highway
Use the straight / slight right lanes.
15
Take the exit
0.2 mi·29 sec
Exit 135Toward MO M: Brewer
16
Turn left onto MO M
0.6 mi·1 min·MO M
17
At end of road, turn right onto US 61; MO M
5.3 mi·7 min·US 61; MO M
18
Enter roundabout onto US 61
136 ft·2 sec·South Kingshighway Street
19
Continue on US 61
7.1 mi·10 min·South Kingshighway Street
20
Turn left onto MO D
2.5 mi·5 min·MO D
21
Arrive at destination
MO D
Trip Plan
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 56.1 miles from O'Fallon, MO, or about 1h 8m into the drive.
The longest continuous stretch on this route runs about 57.5 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 25 miles or 32m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 56.1 miles or 1h 8m 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 47m
Traffic, exits, and arrival timing usually matter more near Eureka, MO than in the middle of the route.
Before You Leave
+
Open the route before leaving O'Fallon, 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 O'Fallon, MO
This is one driving day of about 112.2 miles and 2h 18m.
Your first comfortable stop window is around 25 miles from O'Fallon, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Police Officer Steven Jarvis Memorial Highway for about 57.5 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 56.1 mi from O'Fallon, MO
· 1h 8m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Ste. Geneviève National Historical Park
National Historical Park
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...
5 mi from route
~13 min detour
Free
near mile 85.1
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
~30 min detour
$19
near mile 34.8
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $12 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
33.7
0
$11.78
$5.39
Efficient EV
28.1
0
$9.82
$4.49
EV Truck/SUV
44.9
0
$15.71
$7.18
Gas CO2
39 kg
EV CO2
13 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 Apr 17, 2026
Origin
O'Fallon, MO
Morning
in O'Fallon on Friday
Local time
9:16 AM
CDT
Current temp
57°F
Unavailable
Live forecast
Destination
Eureka, MO
Morning
in Eureka on Friday
Local time
9:16 AM
CDT
Current temp
84°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
S 5 to 18 mph18% chanceLive forecast
57°F
Imperial, MO
56 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
27 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
2h 18m 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.
Frequently Asked Questions
The drive from O'Fallon, MO to Eureka, MO covers 112.2 miles and takes about 2h 18m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Police Officer Steven Jarvis Memorial Highway, I 270, I 70. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 56.1 miles from O'Fallon, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $17.54 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a demanding drive. With 15 significant decision points across 112.2 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 0.6 miles (Drennen Parkway): Lane positioning matters here; at 1.5 miles: Lane positioning matters here; at 15.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Between O'Fallon, MO and Eureka, MO, road signs point toward Memphis and Mo M: Brewer.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.
