How far is Florissant, MO from Washington, MO?
The driving distance from Florissant, MO to Washington, MO is about 51.3 miles (82.5 km), with a travel time of about 01h 16m by car.
- The straight-line flight distance is about 40.5 miles (65.1 km).
- For a round trip, plan for roughly 02h 32m 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 16m.
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 Chance Showers And Thunderstorms
Partly Sunny
Driving Route Map
The map below follows the saved road route between Florissant and Washington.
Turn-by-Turn Driving Directions
Step-by-step road directions between Florissant and Washington.
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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
3.8 mi · 6 min
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16
Keep slight left
1.3 mi · 2 min
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17
Turn right
15.3 mi · 22 min
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18
At the end of the road, turn left
3.1 mi · 4 min
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19
Continue straight
3.6 mi · 6 min
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20
Continue straight
1.1 km · 2 min
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21
At the end of the road, turn left
3.4 mi · 5 min
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22
Turn right onto East 3rd Street
1.1 km · 2 min · East 3rd Street
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23
Arrive at your destination
0 m · 1 sec · West 3rd Street
Car Route Details
A richer read on the saved driving route between Florissant and Washington.
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.
Longest stretch
Turn right
15.3 mi · 00h 22m
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 Chance Showers And Thunderstorms leaving Florissant and Partly Sunny near Washington.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Florissant to Washington?
The road trip is about 51.3 miles (82.5 km) and usually takes 01h 16m 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 25.6 miles from Florissant and 25.7 miles from Washington.
How much longer is the road route than the straight-line distance?
The direct path is about 40.5 miles (65.1 km), while the road route adds roughly 10.8 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 3:58 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.83 one way or $13.65 round trip. Estimated CO2 is about 16.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Chance Showers And Thunderstorms around Florissant and Partly Sunny near Washington.
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 Florissant and Washington. Straight-line distance: 40.48 mi (65.14 km).
#1 Florissant
The most populous city in St.
| Population | 50,795 |
| Coordinates | 38.7892200, -90.3226100 |
| Altitude | 175 |
| Country | United States |
#2 Washington
City in Franklin County, Missouri
| Population | 14,243 |
| Coordinates | 38.5581100, -91.0120900 |
| Altitude | 168 |
| Country | United States |
End: Washington (-91.01209, 38.55811)
Estimated Travel Time
Distance: 83 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 42m |
| 40 mph (64.37 km/h) | 01h 16m |
| 50 mph (80.47 km/h) | 01h 01m |
| 60 mph (96.56 km/h) | 00h 51m |
| 70 mph (112.65 km/h) | 00h 43m |
| 80 mph (129 km/h) | 00h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $6.83 | $13.65 |
| Mid-grade | $4.25 | $7.70 | $15.40 |
| Premium | $4.65 | $8.42 | $16.85 |
| Diesel | $5.30 | $9.60 | $19.20 |
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 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.