How far is St. Louis, MO from Montgomery City, MO?
The driving distance from St. Louis, MO to Montgomery City, MO is about 81.3 miles (130.8 km), with a travel time of about 01h 42m by car.
- The straight-line flight distance is about 74.4 miles (119.8 km).
- For a round trip, plan for roughly 03h 25m 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 01h 42m.
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.
A city in St.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between St. Louis and Montgomery City.
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Louis and Montgomery City.
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1
Start on Market Street
1.6 mi · 3 min · Market Street
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2
Take the ramp slight left toward I 64 West, US 40 West: Wentzville
1531 ft · 24 sec
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3
Merge slight left onto Jack Buck Memorial Highway
4.3 mi · 6 min · Jack Buck Memorial Highway
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4
Continue on Daniel Boone Expressway
5.7 mi · 7 min · Daniel Boone Expressway
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5
Continue on Avenue of the Saints
27.8 mi · 34 min · Avenue of the Saints
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6
Take the exit slight left toward I 70 West, US 40 West: Kansas City
3047 ft · 1 min
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7
Merge slight left onto Dwight D Eisenhower Highway
34.6 mi · 42 min · Dwight D Eisenhower Highway
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8
Take the exit slight right toward MO 19: Hermann, New Florence
1223 ft · 26 sec
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9
Enter the roundabout and take exit 2 toward the route
52 m · 3 sec
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10
Exit the roundabout
55 m · 3 sec
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11
Continue straight
6 mi · 9 min
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12
Turn right onto East 2nd Street
12 m · 2 sec · East 2nd Street
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13
Arrive at your destination
0 m · 1 sec · East 2nd Street
Car Route Details
A richer read on the saved driving route between St. Louis and Montgomery City.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Dwight D Eisenhower Highway
Merge slight left onto Dwight D Eisenhower Highway
34.6 mi · 00h 42m
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.
Sunny leaving St. Louis and Sunny near Montgomery City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from St. Louis to Montgomery City?
The road trip is about 81.3 miles (130.8 km) and usually takes 01h 42m 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?
Wentzville is a useful midpoint, sitting about 40.6 miles from St. Louis and 40.7 miles from Montgomery City.
How much longer is the road route than the straight-line distance?
The direct path is about 74.4 miles (119.8 km), while the road route adds roughly 6.9 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 3:04 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.82 one way or $21.65 round trip. Estimated CO2 is about 25.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around St. Louis and Sunny near Montgomery City.
Stop Ideas Near Wentzville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Park
City of O'Fallon
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Wentzville.
Washington
Kirkwood
Hermann
Gateway Transportation Center
Flight Path Map
This map shows the direct air route between St. Louis and Montgomery City. Straight-line distance: 74.42 mi (119.77 km).
#1 St. Louis
The second most populous city in Missouri and the center of the St.
| Population | 315,685 |
| Coordinates | 38.6272700, -90.1978900 |
| Altitude | 142 |
| Country | United States |
#2 Montgomery City
City in Missouri, United States
| Population | 2,678 |
| Coordinates | 38.9775400, -91.5048800 |
| Altitude | 251 |
| Country | United States |
End: Montgomery City (-91.50488, 38.97754)
Estimated Travel Time
Distance: 131 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 42m |
| 40 mph (64.37 km/h) | 02h 01m |
| 50 mph (80.47 km/h) | 01h 37m |
| 60 mph (96.56 km/h) | 01h 21m |
| 70 mph (112.65 km/h) | 01h 09m |
| 80 mph (129 km/h) | 01h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $10.82 | $21.65 |
| Mid-grade | $4.25 | $12.21 | $24.41 |
| Premium | $4.65 | $13.36 | $26.71 |
| Diesel | $5.30 | $15.22 | $30.44 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.