How far is Wentzville, MO from Affton, MO?
The driving distance from Wentzville, MO to Affton, MO is about 39.5 miles (63.6 km), with a travel time of about 00h 53m by car.
- The straight-line flight distance is about 33.3 miles (53.6 km).
- For a round trip, plan for roughly 01h 46m 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 00h 53m.
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.
Driving Route Map
The map below follows the saved road route between Wentzville and Affton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Wentzville and Affton.
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1
Start on East Allen Street
12 m · 4 sec · East Allen Street
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2
Turn right onto North Linn Avenue
65 m · 11 sec · North Linn Avenue
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3
Turn right onto East Pearce Boulevard
2469 ft · 1 min · East Pearce Boulevard
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4
Turn slight right
106 m · 9 sec
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5
Turn slight right onto Luetkenhaus Boulevard
152 m · 14 sec · Luetkenhaus Boulevard
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6
Take the ramp straight toward US 61 South, I 70, US 40
50 m · 2 sec
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7
Keep slight left to continue on US 61 South
772 ft · 11 sec
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8
Merge slight left onto Avenue of the Saints
25.5 mi · 31 min · Avenue of the Saints
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9
Take the exit slight right toward I 270: Chicago, Memphis
1829 ft · 39 sec
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10
Keep slight right to continue on I 270 South: Memphis
1691 ft · 31 sec
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11
Merge slight left
8.1 mi · 10 min
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12
Take the exit slight right toward MO 30: Gravois Road
1580 ft · 34 sec
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13
Keep slight left to continue on MO 30: Saint Louis, Ulysses S. Grant National Historic Site, Gravois Road
121 m · 11 sec
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14
Merge slight right
4.1 mi · 8 min
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15
Turn right
12 m · 8 sec
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16
Turn left
27 m · 6 sec
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17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Wentzville and Affton.
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
Merge slight left onto Avenue of the Saints
25.5 mi · 00h 31m
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 Wentzville and Sunny near Affton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Wentzville to Affton?
The road trip is about 39.5 miles (63.6 km) and usually takes 00h 53m 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?
Chesterfield is a useful midpoint, sitting about 19.8 miles from Wentzville and 19.8 miles from Affton.
How much longer is the road route than the straight-line distance?
The direct path is about 33.3 miles (53.6 km), while the road route adds roughly 6.2 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 4:44 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.24 one way or $10.48 round trip. Estimated CO2 is about 12.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Wentzville and Sunny near Affton.
Stop Ideas Near Chesterfield
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Park
Berkeley City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Chesterfield.
Kirkwood
Gateway Transportation Center
Washington
Alton
Flight Path Map
This map shows the direct air route between Wentzville and Affton. Straight-line distance: 33.32 mi (53.63 km).
#1 Wentzville
A city in St.
| Population | 43,109 |
| Coordinates | 38.8114400, -90.8529100 |
| Altitude | 190 |
| Country | United States |
#2 Affton
Census designated place
| Population | 20,307 |
| Coordinates | 38.5506100, -90.3331700 |
| Altitude | 188 |
| Country | United States |
End: Affton (-90.33317, 38.55061)
Estimated Travel Time
Distance: 64 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 19m |
| 40 mph (64.37 km/h) | 00h 59m |
| 50 mph (80.47 km/h) | 00h 47m |
| 60 mph (96.56 km/h) | 00h 39m |
| 70 mph (112.65 km/h) | 00h 33m |
| 80 mph (129 km/h) | 00h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $5.24 | $10.48 |
| Mid-grade | $4.25 | $5.91 | $11.82 |
| Premium | $4.65 | $6.47 | $12.94 |
| Diesel | $5.30 | $7.37 | $14.75 |
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.