How far is Mehlville, MO from Castle Point, MO?
The driving distance from Mehlville, MO to Castle Point, MO is about 24.8 miles (39.9 km), with a travel time of about 00h 33m by car.
- The straight-line flight distance is about 17.7 miles (28.5 km).
- For a round trip, plan for roughly 01h 06m 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 33m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The second most populous city in Missouri and the center of the St.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Mehlville and Castle Point.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mehlville and Castle Point.
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1
Start on Lemay Ferry Road
1155 ft · 25 sec · Lemay Ferry Road
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2
Turn right onto South Lindbergh Boulevard
1 km · 1 min · South Lindbergh Boulevard
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3
Take the ramp slight right toward I 55 North: Saint Louis
1760 ft · 31 sec
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4
Merge slight left
11.3 mi · 14 min
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5
Keep slight left to continue on Third Street Expressway
2 mi · 3 min · Third Street Expressway
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6
Merge slight right onto Andy Gammon Memorial Highway
1.4 mi · 2 min · Andy Gammon Memorial Highway
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7
Continue on Mark Twain Expressway
2.1 mi · 3 min · Mark Twain Expressway
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8
Take the exit slight right toward West Florissant Avenue
1121 ft · 25 sec
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9
Turn straight onto West Florissant Avenue
1.9 mi · 4 min · West Florissant Avenue
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10
Turn right onto Riverview Boulevard
1.2 mi · 2 min · Riverview Boulevard
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11
Enter the roundabout and take exit 4 toward Halls Ferry Circle
154 m · 10 sec · Halls Ferry Road
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12
Exit the rotary onto Halls Ferry Road
2 mi · 3 min · Halls Ferry Road
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13
Turn right onto Chambers Road
2011 ft · 39 sec · Chambers Road
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14
Turn left onto Lord Drive
2556 ft · 2 min · Lord Drive
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15
Arrive at your destination
0 m · 1 sec · Lord Drive
Car Route Details
A richer read on the saved driving route between Mehlville and Castle Point.
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.
I 55 North
Merge slight left
11.3 mi · 00h 14m
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.
Slight Chance Rain Showers leaving Mehlville and Slight Chance Rain Showers near Castle Point.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mehlville to Castle Point?
The road trip is about 24.8 miles (39.9 km) and usually takes 00h 33m 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?
St. Louis is a useful midpoint, sitting about 12.2 miles from Mehlville and 12.6 miles from Castle Point.
How much longer is the road route than the straight-line distance?
The direct path is about 17.7 miles (28.5 km), while the road route adds roughly 7.1 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:24 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.28 one way or $6.56 round trip. Estimated CO2 is about 7.7 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around Mehlville and Slight Chance Rain Showers near Castle Point.
Stop Ideas Near St. Louis
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 St. Louis.
Gateway Transportation Center
Kirkwood
Alton
Washington
Flight Path Map
This map shows the direct air route between Mehlville and Castle Point. Straight-line distance: 17.72 mi (28.52 km).
#1 Mehlville
Census designated place
| Population | 28,380 |
| Coordinates | 38.5083900, -90.3228900 |
| Altitude | 184 |
| Country | United States |
#2 Castle Point
A census-designated place in Jefferson County, Missouri.
| Population | 90,070 |
| Coordinates | 38.7581100, -90.2481700 |
| Altitude | 152 |
| Country | United States |
End: Count Drive (-90.248701, 38.758102)
Estimated Travel Time
Distance: 40 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 49m |
| 40 mph (64.37 km/h) | 00h 37m |
| 50 mph (80.47 km/h) | 00h 29m |
| 60 mph (96.56 km/h) | 00h 24m |
| 70 mph (112.65 km/h) | 00h 21m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $3.28 | $6.56 |
| Mid-grade | $4.25 | $3.70 | $7.40 |
| Premium | $4.65 | $4.05 | $8.10 |
| Diesel | $5.30 | $4.61 | $9.23 |
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 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.