How far is Florissant, MO from Weldon Spring, MO?
The driving distance from Florissant, MO to Weldon Spring, MO is about 23.2 miles (37.3 km), with a travel time of about 00h 33m by car.
- The straight-line flight distance is about 20.4 miles (32.9 km).
- For a round trip, plan for roughly 01h 07m 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.
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 Florissant and Weldon Spring.
Turn-by-Turn Driving Directions
Step-by-step road directions between Florissant and Weldon Spring.
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1
Start on North New Florissant Road
26 m · 6 sec · North New Florissant Road
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2
Turn right onto Washington Street
1 mi · 2 min · Washington Street
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3
Turn left onto Lindbergh Boulevard
1.7 mi · 3 min · Lindbergh Boulevard
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4
Take the ramp slight right
1912 ft · 47 sec
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5
Merge slight left onto Rosemary Straub Davison Highway
3.7 mi · 5 min · Rosemary Straub Davison Highway
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6
Take the exit slight right toward I 70: Saint Louis, Kansas City
1492 ft · 26 sec
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7
Continue on I 70: Saint Louis, Kansas City
2478 ft · 43 sec
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8
Keep slight right to continue on I 70 West: Kansas City
2439 ft · 42 sec
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9
Merge slight left
3.3 mi · 4 min
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10
Take the exit slight right
657 ft · 16 sec
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11
Turn straight onto North Outer Road
1263 ft · 24 sec · North Outer Road
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12
Continue on North Outer Road
1566 ft · 30 sec · North Outer Road
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13
Keep slight left to continue on MO 94 West: Veterans Memorial Parkway
631 ft · 16 sec
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14
Continue on South First Capitol Drive
7.3 mi · 10 min · South First Capitol Drive
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15
Take the exit slight right toward MO 94 West: Weldon Spring
3.7 mi · 5 min
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16
Turn slight right onto Weldon Spring Road
84 m · 15 sec · Weldon Spring Road
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17
At the end of the road, turn left onto Old 94 South
45 m · 5 sec · Old 94 South
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18
Arrive at your destination
0 m · 1 sec · Old 94 South
Car Route Details
A richer read on the saved driving route between Florissant and Weldon Spring.
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.
South First Capitol Drive
Continue on South First Capitol Drive
7.31 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.
Sunny leaving Florissant and Sunny near Weldon Spring.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Florissant to Weldon Spring?
The road trip is about 23.2 miles (37.3 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?
Saint Charles is a useful midpoint, sitting about 11.6 miles from Florissant and 11.6 miles from Weldon Spring.
How much longer is the road route than the straight-line distance?
The direct path is about 20.4 miles (32.9 km), while the road route adds roughly 2.8 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 7:22 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.09 one way or $6.18 round trip. Estimated CO2 is about 7.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Florissant and Sunny near Weldon Spring.
Stop Ideas Near Saint Charles
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Park
Jennings City Hall
Ferguson Finance Director
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Saint Charles.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Florissant and Weldon Spring. Straight-line distance: 20.44 mi (32.9 km).
#1 Florissant
The most populous city in St.
| Population | 50,795 |
| Coordinates | 38.7892200, -90.3226100 |
| Altitude | 175 |
| Country | United States |
#2 Weldon Spring
City in Saint Charles County, Missouri, United States
| Population | 5,546 |
| Coordinates | 38.7133900, -90.6892900 |
| Altitude | 165 |
| Country | United States |
End: Weldon Spring (-90.68929, 38.71339)
Estimated Travel Time
Distance: 37 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 46m |
| 40 mph (64.37 km/h) | 00h 34m |
| 50 mph (80.47 km/h) | 00h 27m |
| 60 mph (96.56 km/h) | 00h 23m |
| 70 mph (112.65 km/h) | 00h 19m |
| 80 mph (129 km/h) | 00h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $3.09 | $6.18 |
| Mid-grade | $4.25 | $3.49 | $6.97 |
| Premium | $4.65 | $3.82 | $7.63 |
| Diesel | $5.30 | $4.35 | $8.70 |
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 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.