How far is Saint Charles, MO from Mexico, MO?
The driving distance from Saint Charles, MO to Mexico, MO is about 99.9 miles (160.7 km), with a travel time of about 02h 01m by car.
- The straight-line flight distance is about 79.8 miles (128.5 km).
- For a round trip, plan for roughly 04h 02m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 01m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Human settlement in Montgomery County, Missouri, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Isolated Rain Showers
Driving Route Map
The map below follows the saved road route between Saint Charles and Mexico.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Charles and Mexico.
-
1
Start on North Second Street
1551 ft · 1 min · North Second Street
-
2
Turn right onto First Capitol Drive
1.4 km · 2 min · First Capitol Drive
-
3
Turn left onto First Capitol Drive
1.5 km · 2 min · First Capitol Drive
-
4
Take the ramp slight right toward I 70 West
1018 ft · 14 sec
-
5
Merge slight left
79.9 mi · 1 hr 34 min
-
6
Take the exit slight right toward US 54: Auxvasse, Mexico, Fulton
1033 ft · 22 sec
-
7
Turn right
13.3 mi · 15 min
-
8
Take the exit slight right toward US 54 Business, MO 15, MO 22: Mexico
1135 ft · 34 sec
-
9
Turn left
3.8 mi · 6 min
-
10
Turn right onto High Street
677 ft · 33 sec · High Street
-
11
At the end of the road, turn left onto South Jefferson Street
51 m · 7 sec · South Jefferson Street
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12
Arrive at your destination
0 m · 1 sec · South Jefferson Street
Car Route Details
A richer read on the saved driving route between Saint Charles and Mexico.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 70 West
Merge slight left
79.9 mi · 01h 34m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Chance Rain Showers leaving Saint Charles and Isolated Rain Showers near Mexico.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Charles to Mexico?
The road trip is about 99.9 miles (160.7 km) and usually takes 02h 01m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
High Hill is a useful midpoint, sitting about 49.8 miles from Saint Charles and 50 miles from Mexico.
How much longer is the road route than the straight-line distance?
The direct path is about 79.8 miles (128.5 km), while the road route adds roughly 20.1 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:28 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.27 one way or $26.55 round trip. Estimated CO2 is about 31.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Saint Charles and Isolated Rain Showers near Mexico.
Stop Ideas Near High Hill
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Warrenton City Animal Control
Warrenton City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to High Hill.
Hermann
Washington
Jefferson City
Kirkwood
Flight Path Map
This map shows the direct air route between Saint Charles and Mexico. Straight-line distance: 79.87 mi (128.54 km).
#1 Saint Charles
A city in St.
| Population | 71,761 |
| Coordinates | 38.7839400, -90.4812300 |
| Altitude | 147 |
| Country | United States |
#2 Mexico
City in and county seat of Audrain County, Missouri
| Population | 11,530 |
| Coordinates | 39.1697600, -91.8829500 |
| Altitude | 244 |
| Country | United States |
End: Mexico (-91.88295, 39.16976)
Estimated Travel Time
Distance: 161 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 19m |
| 40 mph (64.37 km/h) | 02h 29m |
| 50 mph (80.47 km/h) | 01h 59m |
| 60 mph (96.56 km/h) | 01h 39m |
| 70 mph (112.65 km/h) | 01h 25m |
| 80 mph (129 km/h) | 01h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $13.27 | $26.55 |
| Mid-grade | $4.25 | $14.97 | $29.94 |
| Premium | $4.65 | $16.38 | $32.76 |
| Diesel | $5.30 | $18.67 | $37.34 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.