Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 4, 2026 · Editorial standards
Drive Time
5h 3m
Distance
264.7 mi
426 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$41
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
O'Fallon, MO
Wikimedia Commons
Sparta, MO
Valeria Boltneva
O'Fallon, MO to Sparta, MO is 264.7 miles and takes about 5h 3m via I 70, I 435, and I 29, with a fuel budget near $42 and enough daylight to finish in a day. This drive stays entirely within Missouri, traversing the Midwest region. It's a straightforward trip, primarily on major interstates, making it a good option for a single-day transit. You'll find the route is about 93% highway, so expect consistent speed for most of the drive. Consider this route if you need to get from the St. Louis area to southwest Missouri efficiently.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
132.4 miles from O'Fallon, MO
A natural place for your longest stop of the day , about 2h 30m into the drive .
| Road | Distance | Duration |
|---|---|---|
| I 70 | 200.7 mi | 3h 46m |
| I 435 | 20.9 mi | 22m |
| I 29 | 18.6 mi | 19m |
| Lamar Hunt Memorial Highway | 7.8 mi | 9m |
| Truman/Eisenhower Presidential Highway | 5.6 mi | 6m |
| MO 371 | 4 mi | 7m |
| Clifton J. Scott Memorial Highway | 1.8 mi | 2m |
| I435 N | 1.3 mi | 1m |
Hour-of-day weekday pattern from 54 FHWA count stations on your route.
Peak
4 PM
~2,890 veh/hr typical · worst 3,438
Quietest
1 AM
~270 veh/hr
Peak-to-quiet ratio
10.7×
busier at peak than in the quiet hours
Averaged across 105 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Step-by-step road directions between O'Fallon, MO and Sparta, MO.
Start on this road
Turn left onto South Main Street
Turn left
Turn sharp left onto South Main Street
Turn left onto West Terra Lane
Take the ramp
Merge onto I 70
Continue on I 70
Continue on I 70
Continue on I 70
Continue on I 70
Take the exit
Merge onto I 435; US 24
Continue on I435 N
Continue on I 435
Keep slight left at fork onto I 29; US 71
Take the exit
Turn left onto MO DD
At end of road, turn right onto MO 371
Arrive at destination
Given the 5-hour duration, departing O'Fallon in the morning allows ample time to reach Sparta before evening. While only one stop is indicated, feel free to add more as needed, especially since you have flexibility with a single-day drive. Keep an eye on your fuel levels; the estimated cost is $42, but local prices can vary. The longest stretch on I 70 is over 200 miles, so ensure you're fueled up and comfortable before embarking on that segment. This route is designed for efficiency, so minimal stops are required if you're on a tight schedule.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
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 58 miles or 1h 6m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 132.4 miles or 2h 30m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 7m
Traffic, exits, and arrival timing usually matter more near Sparta, MO than in the middle of the route.
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 264.7 miles and 5h 3m.
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
132 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 58 miles helps settle the day before fatigue starts building.
The midpoint is around 132.4 miles from O'Fallon, MO, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 70 if your tank is already low. That segment runs about 200.7 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 0.6 and 240.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn left toward I 70 East
Lane positioning matters here
Turn sharp left onto South Main Street
Sharp turn - reduce speed on approach
Turn left onto West Terra Lane
Lane positioning matters here
Take the exit toward I 435 North, US 24 East: Des Moines
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight left at fork onto I 29; US 71 toward I 29 North, US 71 North: Saint Joseph
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Regular Gas
$41.04 one way
$82.08 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.32 | $45.00 | $90.00 |
| premium | $4.93 | $51.36 | $102.71 |
| diesel | $5.60 | $58.35 | $116.70 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$41
Meals
$25–$50
Total
$66–$91
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 92.6 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $28 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 79.4 | 0 | $27.79 | $12.71 |
| Efficient EV | 66.2 | 0 | $23.16 | $10.59 |
| EV Truck/SUV | 105.9 | 1 | $37.06 | $16.94 |
Gas CO2
93 kg
EV CO2
31 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Afternoon in O'Fallon on Friday
Local time
2:58 PM
CDT
Current temp
86°F
Sunny
Destination
Afternoon in Sparta on Friday
Local time
2:58 PM
CDT
Current temp
85°F
Sunny
67°F
Marshall, MO
132 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
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
This trip is mostly highway driving, with 93% of the 264.7 miles on interstates. You'll encounter the longest continuous stretch of highway at 200.7 miles, all on I 70. Expect a lot of exits and merging traffic as you pass through and around urban areas, particularly near Kansas City. Surface roads will likely begin closer to your destination in Sparta.
This is a straightforward highway drive that stays mostly on I 70 and I 435. You will hit about 12 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.6 miles in.
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 264.7 miles you will encounter 12 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 0.6 miles: Lane positioning matters here; at 0.6 miles (South Main Street): Sharp turn - reduce speed on approach; at 0.7 miles (West Terra Lane): Lane positioning matters here.
Gently rolling terrain
Total Climb
1,145 ft
Total Descent
556 ft
Highest Point
1,136 ft
~264.7 mi in
Elevation Range
589 ft
Founded 1856
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.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 5h 3m. Total distance: 264.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 3m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (93%). Some complex stretches to watch for.
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 FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
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