How far is St. Louis, MO from Warrenton, MO?
The driving distance from St. Louis, MO to Warrenton, MO is about 57.4 miles (92.4 km), with a travel time of about 01h 15m by car.
- The straight-line flight distance is about 52.4 miles (84.4 km).
- For a round trip, plan for roughly 02h 30m 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 15m.
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.
City in Saint Charles County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny then Slight Chance Rain Showers
Mostly Sunny
Driving Route Map
The map below follows the saved road route between St. Louis and Warrenton.
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Louis and Warrenton.
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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
16.2 mi · 22 min · Dwight D Eisenhower Highway
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8
Take the exit slight right toward MO 47: Warrenton, Hawk Point
753 ft · 21 sec
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9
Turn left
1.3 km · 2 min
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10
Arrive at your destination
0 m · 1 sec · East Booneslick Road
Car Route Details
A richer read on the saved driving route between St. Louis and Warrenton.
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
Continue on Avenue of the Saints
27.8 mi · 00h 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.
Partly Sunny then Slight Chance Rain Showers leaving St. Louis and Mostly Sunny near Warrenton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from St. Louis to Warrenton?
The road trip is about 57.4 miles (92.4 km) and usually takes 01h 15m 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?
Weldon Spring is a useful midpoint, sitting about 28.6 miles from St. Louis and 28.8 miles from Warrenton.
How much longer is the road route than the straight-line distance?
The direct path is about 52.4 miles (84.4 km), while the road route adds roughly 5 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 4:00 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.66 one way or $15.31 round trip. Estimated CO2 is about 18 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Slight Chance Rain Showers around St. Louis and Mostly Sunny near Warrenton.
Stop Ideas Near Weldon Spring
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Park
City of O'Fallon
Swingley Ridge @ Chesterfield City Hall SB
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Weldon Spring.
Kirkwood
Washington
Gateway Transportation Center
Alton
Flight Path Map
This map shows the direct air route between St. Louis and Warrenton. Straight-line distance: 52.44 mi (84.39 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 Warrenton
City in Warren County, Missouri, United States
| Population | 8,913 |
| Coordinates | 38.8114400, -91.1415400 |
| Altitude | 270 |
| Country | United States |
End: Warrenton (-91.14154, 38.81144)
Estimated Travel Time
Distance: 92 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 54m |
| 40 mph (64.37 km/h) | 01h 26m |
| 50 mph (80.47 km/h) | 01h 08m |
| 60 mph (96.56 km/h) | 00h 57m |
| 70 mph (112.65 km/h) | 00h 49m |
| 80 mph (129 km/h) | 00h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $7.66 | $15.31 |
| Mid-grade | $4.25 | $8.63 | $17.27 |
| Premium | $4.65 | $9.45 | $18.90 |
| Diesel | $5.30 | $10.77 | $21.53 |
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 26, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.