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Trip from Florissant, MO to Washington, MO

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 2, 2026 · Editorial standards

Drive Time

1h 16m

Distance

51.3 mi

83 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$8

one way

EV Charging

Good

8 stations

Best Time to Leave

Save up to 18 min
4 AM
1h 10m ★
6 AM
1h 16m
8 AM
1h 28m
10 AM
1h 20m
12 PM
1h 19m
3 PM
1h 21m
5 PM
1h 28m
8 PM
1h 13m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Downtown Florissant, MO, MO

Florissant, MO

Wikimedia Commons

Downtown Washington, MO, MO

Washington, MO

Valeria Boltneva

Trip Overview

Florissant to Washington is 51.3 miles and takes about 1 hour 16 minutes via MO D and MO 94, with a fuel budget near $8 and enough daylight to finish in a day. This route stays within the Midwest region, specifically Missouri, and covers mostly surface roads. It's a straightforward drive connecting two points without extensive highway travel. Consider this trip if you're looking for a short, direct connection between these two Missouri locations, ideal for a quick errand or a brief scenic excursion.

Main Roads

Road Distance Duration
MO D 18.4 mi 26m
South First Capitol Drive 7.3 mi 9m
MO 94 5.8 mi 8m
Rosemary Straub Davison Highway 3.7 mi 4m
MO TT 3.6 mi 5m
MO 47 3.4 mi 5m
I 70 3.3 mi 4m
Lindbergh Boulevard 1.7 mi 3m
Longest stretch: MO D — 18.4 mi, about 26m

Traffic on I-70

Hour-of-day weekday pattern from 22 FHWA count stations on your route.

Peak

4 PM

~6,486 veh/hr typical

Quietest

2 AM

~540 veh/hr

Peak-to-quiet ratio

12×

busier at peak than in the quiet hours

12a 6a noon 6p 11p

Averaged across 105 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).

Turn-by-Turn Driving Directions

Step-by-step road directions between Florissant, MO and Washington, MO.

1

Start on North New Florissant Road

87 ft · 5 sec · North New Florissant Road
2

Turn right onto Washington Street

1.0 mi · 1 min · Washington Street
3

Turn left onto US 67

1.7 mi · 3 min · Lindbergh Boulevard
4

Take the ramp

0.4 mi · 46 sec
Use the right lane.
5

Merge onto I 270

3.7 mi · 4 min · Rosemary Straub Davison Highway
Use the straight / slight right lanes.
6

Take the exit

0.3 mi · 25 sec
Exit 20A Toward I 70: Saint Louis, Kansas City
7

Continue on this road

0.5 mi · 42 sec · this road
Exit 20A-B Toward I 70: Saint Louis, Kansas City Use the slight left / slight right lanes.
8

Keep slight right at fork

0.5 mi · 41 sec
Exit 20B Toward I 70 West: Kansas City Use the slight right lane.
9

Merge onto I 70

3.3 mi · 4 min · I 70
Use the straight / slight right lanes.
10

Take the exit

0.1 mi · 16 sec
Use the straight / slight right lanes.
11

Turn straight onto North Outer Road

0.2 mi · 23 sec · North Outer Road
Toward I 70 West
12

Continue on North Outer Road

0.3 mi · 29 sec · North Outer Road
Toward I 70 West
13

Keep slight left at fork

0.1 mi · 15 sec
Toward MO 94 West: Veterans Memorial Parkway
14

Continue on MO 94

7.3 mi · 9 min · South First Capitol Drive
Use the straight / slight right lanes.
15

Take the exit onto MO 94

3.8 mi · 5 min · MO 94
Exit 8A Toward MO 94 West: Weldon Spring Use the slight right lane.
16

Keep slight left at fork onto MO 94

1.3 mi · 1 min · MO 94
17

Turn right onto MO D

15 mi · 21 min · MO D
Use the right lane.
18

At end of road, turn left onto MO D; MO T

3.1 mi · 4 min · MO D; MO T
19

Continue on MO TT

3.6 mi · 5 min · MO TT
20

Continue on MO 94

0.7 mi · 1 min · MO 94
21

At end of road, turn left onto MO 47

3.4 mi · 5 min · MO 47
22

Turn right onto East 3rd Street

0.7 mi · 2 min · East 3rd Street
23

Arrive at destination

West 3rd Street

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Downtown Dardenne Prairie, MO, MO

Mid-route town

Meal stop

Dardenne Prairie, MO

26 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Saint Charles, MO

Fuel and coffee

A short stop after about 11 miles helps settle the day before fatigue starts building.

Dardenne Prairie, MO

Meal break

The midpoint is around 25.6 miles from Florissant, MO, which is a good place for a longer meal and fuel stop.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Heads-up: tricky spots

5 of 16

5 decision points cluster between mile 3.1 and 19.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

5
3.1 mi into trip | ~6m in | I 270 / Rosemary Straub Davison Highway

Merge onto I 270 / Rosemary Straub Davison Highway

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight right lanes.
6
6.9 mi into trip | ~10m in

Take the exit toward I 70: Saint Louis, Kansas City

Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one

Exit 20A Toward I 70: Saint Louis, Kansas City
8
7.6 mi into trip | ~12m in

Keep slight right at fork toward I 70 West: Kansas City

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight right lane. Exit 20B Toward I 70 West: Kansas City
6
12 mi into trip | ~17m in

Keep slight left at fork toward MO 94 West: Veterans Memorial Parkway

Highway fork - watch signs carefully

Toward MO 94 West: Veterans Memorial Parkway
7
19.4 mi into trip | ~28m in | MO 94

Take the exit onto MO 94 toward MO 94 West: Weldon Spring

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the slight right lane. Exit 8A Toward MO 94 West: Weldon Spring

Fuel & Cost

Regular Gas

$7.95 one way

$15.91 round trip

$3.94/gal 25.4 MPG avg 18 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.32 $8.72 $17.44
premium $4.93 $9.95 $19.91
diesel $5.60 $11.31 $22.62

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$8

Estimated CO2 emission: 17.9 kg one way. Prices: EIA weekly data, 2026-08-31.

Driving Electric?

About $5 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 15.4 0 $5.39 $2.46
Efficient EV 12.8 0 $4.49 $2.05
EV Truck/SUV 20.5 0 $7.18 $3.28

Gas CO2

18 kg

EV CO2

6 kg (67% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast as of Aug 28, 2026

Origin

Florissant, MO

Afternoon in Florissant on Wednesday

Local time

3:33 PM

CDT

Current temp

87°F

Sunny

NE 1 to 5 mph 0% chance Live forecast

Destination

Washington, MO

Afternoon in Washington on Wednesday

Local time

3:33 PM

CDT

Current temp

85°F

Patchy Fog then Sunny

N 1 mph 0% chance Live forecast

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

2 degrees cooler at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

1h 16m on the road

The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

What kind of drive is this?

This drive is primarily on surface roads, with only 24% of the 51.3 miles on highways. You'll encounter the longest continuous stretch on MO D, covering 18.4 miles. Expect to navigate through local traffic and intersections as you transition from more rural cruising to town approaches. The profile suggests a consistent pace without the frequent acceleration and braking typical of heavy highway use.

Only 24% highway — the rest is turn-by-turn surface driving.
23 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 18.4 mi on MO D.

How Hard Is This Drive?

10/10

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3.1 miles in near I 270 / Rosemary Straub Davison Highway.

Driving Effort 10/10

Demanding - stay alert through the decision-heavy sections

Balances navigation complexity with total wheel time.

This drive requires moderate attention. Across 51.3 miles you will encounter 16 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.

Where does it get tricky?

The main spots that need attention: at 3.1 miles (I 270 / Rosemary Straub Davison Highway): Merge point - match speed before joining. Lane positioning matters here; at 6.9 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 7.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.

Elevation Profile

Mostly flat terrain

823 ft 488 ft

Total Climb

500 ft

Total Descent

526 ft

Highest Point

823 ft

~40.3 mi in

Elevation Range

335 ft

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

On the drive from Florissant, MO to Washington, MO, road signs begin pointing toward Kansas City along the way.

Kansas City

6.9 mi in | ~10m

About the Cities

Starting in Florissant, MO

Full guide →

Founded 1785

Arriving in Washington, MO

Full guide →

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 1h 16m. Total distance: 51.3 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

1h 16m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

Scenic Drive

Mostly surface roads route profile with national parks nearby.

Frequently Asked Questions

The longest stretch is about 18.4 miles on MO D. The full list of main roads is in the Roads section above.

It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Washington, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

The main spots that need attention: at 3.1 miles (I 270 / Rosemary Straub Davison Highway): Merge point - match speed before joining. Lane positioning matters here; at 6.9 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 7.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.

Yes — Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.

Yes. A round trip is manageable in a single day if you plan a break at Washington, MO before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, NPS for national parks, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.

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