How far is Unionville, MO from Saint Charles, MO?
The driving distance from Unionville, MO to Saint Charles, MO is about 241.3 miles (388.4 km), with a travel time of about 03h 53m by car.
- The straight-line flight distance is about 178 miles (286.5 km).
- For a round trip, plan for roughly 07h 47m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 53m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Monroe County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Unionville and Saint Charles.
Turn-by-Turn Driving Directions
Step-by-step road directions between Unionville and Saint Charles.
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1
Start on Main Street
24.5 mi · 36 min · Main Street
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2
At the end of the road, turn right
54.5 mi · 1 hr 5 min
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3
Take the exit left toward US 36 East, MO 110 East: Hannibal
929 ft · 12 sec
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4
Merge slight left onto Chicago-Kansas City Expressway
52.9 mi · 1 hr 1 min · Chicago-Kansas City Expressway
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5
Continue on V.F.W. Memorial Highway
5.8 mi · 7 min · V.F.W. Memorial Highway
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6
Take the exit slight right toward Veterans Road
1167 ft · 30 sec
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7
Turn right onto Veterans Road
2.1 mi · 4 min · Veterans Road
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8
At the end of the road, turn left onto County Road 422
85 m · 7 sec · County Road 422
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9
Continue on Paris Gravel Road
2539 ft · 1 min · Paris Gravel Road
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10
Take the ramp right
37 m · 3 sec
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11
Merge slight left onto Avenue of the Saints
73.7 mi · 1 hr 27 min · Avenue of the Saints
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12
Take the exit slight left toward I 70 East: Saint Louis
2705 ft · 51 sec
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13
Merge slight left onto Dwight D Eisenhower Highway
17.1 mi · 21 min · Dwight D Eisenhower Highway
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14
Take the exit slight right toward I 70 Business, MO 94: First Capitol Drive, Lewis and Clark Trail
653 ft · 14 sec
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15
Keep slight left to continue on I 70 Business, MO 94 East: First Capitol Drive, Lindenwood University, SSM Health Saint Joseph Hospital
596 ft · 15 sec
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16
Turn straight onto First Capitol Drive
1.5 km · 2 min · First Capitol Drive
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17
Turn slight right onto MO 94
1.4 km · 2 min
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18
Turn left onto South Second Street
1551 ft · 57 sec · South Second Street
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19
Arrive at your destination
0 m · 1 sec · North Second Street
Car Route Details
A richer read on the saved driving route between Unionville and Saint Charles.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Avenue of the Saints
Merge slight left onto Avenue of the Saints
73.7 mi · 01h 27m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Showers And Thunderstorms leaving Unionville and Showers And Thunderstorms near Saint Charles.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Unionville to Saint Charles?
The road trip is about 241.3 miles (388.4 km) and usually takes 03h 53m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Monroe City is a useful midpoint, sitting about 117.1 miles from Unionville and 124.2 miles from Saint Charles.
How much longer is the road route than the straight-line distance?
The direct path is about 178 miles (286.5 km), while the road route adds roughly 63.3 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 9:12 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.13 one way or $64.26 round trip. Estimated CO2 is about 75.7 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Unionville and Showers And Thunderstorms near Saint Charles.
Stop Ideas Near Monroe City
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Monroe City.
Quincy
La Plata
Hermann
Fort Madison station
Flight Path Map
This map shows the direct air route between Unionville and Saint Charles. Straight-line distance: 178.02 mi (286.49 km).
#1 Unionville
City in Putnam County, Missouri, United States
| Population | 1,733 |
| Coordinates | 40.4769600, -93.0032600 |
| Altitude | 324 |
| Country | United States |
#2 Saint Charles
A city in St.
| Population | 71,761 |
| Coordinates | 38.7839400, -90.4812300 |
| Altitude | 147 |
| Country | United States |
End: North Second Street (-90.481269, 38.783952)
Estimated Travel Time
Distance: 388 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 02m |
| 40 mph (64.37 km/h) | 06h 02m |
| 50 mph (80.47 km/h) | 04h 49m |
| 60 mph (96.56 km/h) | 04h 01m |
| 70 mph (112.65 km/h) | 03h 26m |
| 80 mph (129 km/h) | 03h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $32.13 | $64.26 |
| Mid-grade | $4.25 | $36.24 | $72.47 |
| Premium | $4.65 | $39.65 | $79.30 |
| Diesel | $5.30 | $45.19 | $90.38 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Missouri · Apr 24, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.