Saint Peters, MO to Chillicothe, MO is 207 miles and takes about 4 hours via I-70 and the Chicago-Kansas City Expressway, with a fuel budget near $33 and enough daylight to finish in a day. This route stays within the Midwest, primarily traversing Missouri. You'll experience a mix of highway driving and surface roads, making it a straightforward trip for a single day. Plan for a comfortable drive that won't feel rushed, allowing for a relaxed start or a leisurely arrival.
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
103.4 miles from Saint Peters, MO
A natural place for your longest stop of the day
, about 2h 4m into the drive
.
Main Roads
Road
Distance
Duration
Chicago-Kansas City Expressway
111.4 mi
2h 8m
Avenue of the Saints
73.3 mi
1h 26m
I 70
11.1 mi
13m
V.F.W. Memorial Highway
5.8 mi
6m
Veterans Road
2.2 mi
3m
South Washington Street
1.4 mi
3m
Paris Gravel Road
0.5 mi
1m
Locust Street
0.1 mi
<1m
Longest stretch:
Chicago-Kansas City Expressway
— 111.4 mi, about 2h 8m
Traffic on I-70
Hour-of-day weekday pattern from 12 FHWA count stations on your route.
Peak
2 PM
~3,147 veh/hr typical
· worst 3,671
Quietest
1 AM
~263 veh/hr
Peak-to-quiet ratio
12×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 103 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Peters, MO and Chillicothe, MO.
1
Start on I 70
11 mi·13 min·I 70
Use the straight / slight right lanes.
2
Take the exit
0.4 mi·47 sec
Exit 210BToward US 61 North: HannibalUse the slight right lane.
3
Merge onto US 61
73 mi·1 hr 26 min·Avenue of the Saints
Use the right lane.
4
Take the exit
249 ft·14 sec
5
Turn left onto Paris Gravel Road
0.5 mi·1 min·Paris Gravel Road
6
Keep slight right at fork onto County Road 422
279 ft·8 sec·County Road 422
7
Turn right onto Veterans Road
2.2 mi·3 min·Veterans Road
8
Take the ramp
0.2 mi·16 sec
Toward US 36 West, MO 110 West: Monroe City
9
Merge onto US 36; MO 110
5.8 mi·6 min·V.F.W. Memorial Highway
10
Continue on US 24; US 36; MO 110
111 mi·2 hr 8 min·Chicago-Kansas City Expressway
11
Take the exit
0.2 mi·27 sec
Toward US 65, US 36 Business: Chillicothe, Carrollton
12
Turn right onto US 65; US 36 Business
1.4 mi·3 min·South Washington Street
Use the straight / right lanes.
13
Turn right onto Jackson Street
322 ft·15 sec·Jackson Street
14
Turn left onto Locust Street
0.1 mi·30 sec·Locust Street
15
Arrive at destination
Locust Street
Trip Plan
Given this is a 4-hour drive, leaving in the morning from Saint Peters allows you ample time to reach Chillicothe before evening. With only one recommended stop, you have flexibility in when and where you choose to break up the drive. The longest stretch without a significant change is over 111 miles, so consider a quick stop before or after that segment. Keep an eye on your fuel gauge, especially during the longer highway portions, as services can be spread out. The estimated fuel cost is around $33, so factor that into your budget.
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.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 103.4 miles from Saint Peters, MO, or about 2h 4m into the drive.
The longest continuous stretch on this route runs about 111.4 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 46 miles or 55m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 103.4 miles or 2h 4m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 21m
Traffic, exits, and arrival timing usually matter more near Chillicothe, MO than in the middle of the route.
Before You Leave
+
Open the route before leaving Saint Peters, 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 Saint Peters, MO
This is one driving day of about 206.9 miles and 4h 6m.
Your first comfortable stop window is around 46 miles from Saint Peters, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Chicago-Kansas City Expressway for about 111.4 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 13
5 decision points cluster between mile 11.1 and 205.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
11.1 mi into trip|~13m in
Take the exit toward US 61 North: Hannibal
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 210B
Toward US 61 North: Hannibal
5
11.5 mi into trip|~14m in|US 61 / Avenue of the Saints
Merge onto US 61 / Avenue of the Saints
Merge point - match speed before joining. Lane positioning matters here
Use the right lane.
6
87.6 mi into trip|~1h 46m in
Take the ramp toward US 36 West, MO 110 West: Monroe City
Multiple destination signs - pick the right one
Toward US 36 West, MO 110 West: Monroe City
5
205.1 mi into trip|~4h 2m in
Take the exit toward US 65, US 36 Business: Chillicothe, Carrollton
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 65, US 36 Business: Chillicothe, Carr...
5
205.3 mi into trip|~4h 2m in|US 65; US 36 Business / South Washington Street
Turn right onto US 65; US 36 Business / South Washington Street
Lane positioning matters here
Use the straight / right lanes.
Fuel & Cost
Regular Gas
$34.51 one way
$69.03 round trip
$4.24/gal25.4 MPG avg72 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.61
$37.51
$75.02
premium
$5.26
$42.84
$85.68
diesel
$6.18
$50.33
$100.66
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$35
Meals
$25–$50
Total
$60–$85
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 72.4 kg one way.
Prices: EIA weekly data, 2026-10-12.
Driving Electric?
About $22 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
62.1
0
$21.72
$9.93
Efficient EV
51.7
0
$18.10
$8.28
EV Truck/SUV
82.8
1
$28.97
$13.24
Gas CO2
72 kg
EV CO2
24 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 Oct 19, 2026
Origin
Saint Peters, MO
Morning
in Saint Peters on Tuesday
Local time
7:37 AM
CDT
Current temp
72°F
Sunny
SE 2 mph0% chanceLive forecast
Destination
Chillicothe, MO
Morning
in Chillicothe on Tuesday
Local time
7:37 AM
CDT
Current temp
70°F
Mostly Sunny
SSE 5 mph1% chanceLive forecast
79°F
Independence, IL
103 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
2 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
4h 6m on the road
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.
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...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
About 59% of this 207-mile drive is on highways like I-70. You'll encounter a stretch of 111.4 miles on the Chicago-Kansas City Expressway without a major break. After the highway portions, expect a shift to surface roads, which often means more frequent intersections and changes in speed limits as you approach towns. The driving involves merging onto and off of expressways, which can be busy.
59% highway, the rest on surface roads — varied driving throughout.
15 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 111.4 mi on Chicago-Kansas City Expressway.
How Hard Is This Drive?
6/10
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 13 points where you need to pay attention to lane position or signs. The trickiest moment comes around 11.1 miles in.
Driving Effort6/10
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 206.9 miles you will encounter 13 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 11.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 11.5 miles (US 61 / Avenue of the Saints): Merge point - match speed before joining. Lane positioning matters here; at 87.6 miles: Multiple destination signs - pick the right one.
Doable as a same-day drive at 4h 6m. Total distance: 206.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 6m drive, comfortable solo distance.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 111.4 miles on Chicago-Kansas City Expressway. The full list of main roads is in the Roads section above.
Yes — we found about 3 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
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 Chillicothe, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 3 rest areas along the route for bathroom stops.
The main spots that need attention: at 11.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 11.5 miles (US 61 / Avenue of the Saints): Merge point - match speed before joining. Lane positioning matters here; at 87.6 miles: Multiple destination signs - pick the right one.
Yes — Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.1 hours each way, an in-and-out day trip would put you behind the wheel for 8.2 hours — manageable with a long break at Chillicothe, MO, but most travelers stay overnight.
