How far is St. Louis, MO from Chesterfield, MO?
The driving distance from St. Louis, MO to Chesterfield, MO is about 21.9 miles (35.3 km), with a travel time of about 00h 24m by car.
- The straight-line flight distance is about 20.6 miles (33.2 km).
- For a round trip, plan for roughly 00h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 24m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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 Missouri
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Slight Chance Rain Showers then Mostly Sunny
Driving Route Map
The map below follows the saved road route between St. Louis and Chesterfield.
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Louis and Chesterfield.
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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
8.3 mi · 10 min · Avenue of the Saints
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6
Take the exit slight right toward Chesterfield Parkway West
116 m · 8 sec
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7
Turn straight onto North Outer 40
2036 ft · 56 sec · North Outer 40
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8
Turn left onto Chesterfield Parkway West
607 ft · 27 sec · Chesterfield Parkway West
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9
Turn right
1674 ft · 33 sec
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10
Turn straight onto Wild Horse Creek Road
48 m · 4 sec · Wild Horse Creek Road
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11
Turn right onto Old Chesterfield Road
1576 ft · 1 min · Old Chesterfield Road
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12
Turn left onto Santa Maria Drive
33 m · 5 sec · Santa Maria Drive
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13
Arrive at your destination
0 m · 1 sec · Santa Maria Drive
Car Route Details
A richer read on the saved driving route between St. Louis and Chesterfield.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Avenue of the Saints
Continue on Avenue of the Saints
8.29 mi · 00h 10m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving St. Louis and Slight Chance Rain Showers then Mostly Sunny near Chesterfield.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from St. Louis to Chesterfield?
The road trip is about 21.9 miles (35.3 km) and usually takes 00h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Ladue is a useful midpoint, sitting about 10.7 miles from St. Louis and 11.2 miles from Chesterfield.
How much longer is the road route than the straight-line distance?
The direct path is about 20.6 miles (33.2 km), while the road route adds roughly 1.3 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:42 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.90 one way or $5.81 round trip. Estimated CO2 is about 6.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around St. Louis and Slight Chance Rain Showers then Mostly Sunny near Chesterfield.
Stop Ideas Near Ladue
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 Ladue.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between St. Louis and Chesterfield. Straight-line distance: 20.61 mi (33.17 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 Chesterfield
A city in St.
| Population | 47,570 |
| Coordinates | 38.6631100, -90.5770700 |
| Altitude | 144 |
| Country | United States |
End: Santa Maria Drive (-90.576914, 38.663102)
Estimated Travel Time
Distance: 35 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 43m |
| 40 mph (64.37 km/h) | 00h 32m |
| 50 mph (80.47 km/h) | 00h 26m |
| 60 mph (96.56 km/h) | 00h 21m |
| 70 mph (112.65 km/h) | 00h 18m |
| 80 mph (129 km/h) | 00h 16m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $2.90 | $5.81 |
| Mid-grade | $4.25 | $3.27 | $6.55 |
| Premium | $4.65 | $3.58 | $7.17 |
| Diesel | $5.30 | $4.08 | $8.17 |
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 · May 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.