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Trip from Crystal City, MO to Florissant, MO

Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards

Drive Time

1h 5m

Distance

49.6 mi

80 km

Drive Score

6/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$8

one way

EV Charging

Unknown

Best Time to Leave

Save up to 16 min
4 AM
1h 0m ★
6 AM
1h 5m
8 AM
1h 16m
10 AM
1h 9m
12 PM
1h 8m
3 PM
1h 10m
5 PM
1h 15m
8 PM
1h 2m

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

city in Jefferson County, Missouri, United States

Crystal City, MO

Wikimedia Commons

Downtown Florissant, MO, MO

Florissant, MO

Wikimedia Commons

Trip Overview

This 49.6-mile drive from Crystal City, MO, to Florissant, MO, is a straightforward trip that can easily be completed in about 1 hour and 5 minutes. With 82% of the journey on highways, it’s a route designed for efficiency, making it ideal for a single-day excursion. The estimated fuel cost is around $8, so you won't need to budget heavily for gas. This drive stays within the Midwest region, offering a familiar landscape as you travel. It's a practical choice for a quick transition between these two Missouri locations, perfect for those who prefer a direct path.

Main Roads

Road Distance Duration
I 270 24.4 mi 30m
I 55 16.2 mi 17m
North Lindbergh Boulevard 1.8 mi 3m
North Truman Boulevard 1.5 mi 2m
Rosa Parks Highway 1.3 mi 1m
West Washington Street 1 mi 2m
Commercial Boulevard 0.6 mi 1m
Jefferson Avenue 0.5 mi 1m
Longest stretch: I 270 — 24.4 mi, about 30m

Turn-by-Turn Driving Directions

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

1

Start on North Taylor Avenue

20 ft · 2 sec · North Taylor Avenue
2

Turn right onto 2nd Avenue

368 ft · 18 sec · 2nd Avenue
3

Turn right onto Jefferson Avenue

0.5 mi · 1 min · Jefferson Avenue
4

Turn left onto 8th Street

0.2 mi · 27 sec · 8th Street
5

Turn right onto I 55 Business; US 61; US 67

1.5 mi · 2 min · North Truman Boulevard
6

Continue on I 55 Business; US 61; US 67

0.6 mi · 1 min · Commercial Boulevard
7

Turn left onto I 55 Business

0.5 mi · 58 sec · McNutt Street
Use the left lane.
8

Take the ramp

0.2 mi · 30 sec
Toward I 55 North: Saint Louis Use the right lane.
9

Merge onto I 55

16 mi · 17 min · I 55
10

Continue on I 55

1.3 mi · 1 min · Rosa Parks Highway
11

Take the exit

0.2 mi · 27 sec
Exit 196 Toward I 270 West, I 255 East: Kansas City, Chicago Use the slight right lane.
12

Keep slight left at fork

388 ft · 8 sec
Toward I 270 West: Kansas City Use the slight left lane.
13

Continue on this road

0.7 mi · 1 min · this road
Exit 196 Toward I 270 West
14

Merge onto I 270

24 mi · 30 min · I 270
Use the straight lane.
15

Take the exit

0.3 mi · 44 sec
Exit 25 Toward US 67 Use the straight / slight right lanes.
16

Turn left onto US 67

1.8 mi · 3 min · North Lindbergh Boulevard
Use the left lane.
17

Turn right onto West Washington Street

1.0 mi · 2 min · West Washington Street
18

Turn left onto North New Florissant Road

87 ft · 1 sec · North New Florissant Road
19

Arrive at destination

North New Florissant Road

Where to Stop

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

Unincorporated community in Missouri, U.S.

Mid-route town

Meal stop

Affton, MO

25 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

Imperial, MO

Fuel and coffee

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

Fenton, MO

Meal break

The midpoint is around 24.8 miles from Crystal City, 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 13

5 decision points cluster between mile 2.9 and 46.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

6
2.9 mi into trip | ~6m in | I 55 Business / McNutt Street

Turn left onto I 55 Business / McNutt Street

Lane positioning matters here

Use the left lane.
8
21.1 mi into trip | ~26m in

Take the exit toward I 270 West, I 255 East: Kansas City, Chicago

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

Use the slight right lane. Exit 196 Toward I 270 West, I 255 East: Kansas City, Chi...
8
21.3 mi into trip | ~27m in

Keep slight left at fork toward I 270 West: Kansas City

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight left lane. Toward I 270 West: Kansas City
7
46.5 mi into trip | ~59m in

Take the exit toward US 67

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

Use the straight / slight right lanes. Exit 25 Toward US 67
6
46.8 mi into trip | ~59m in | US 67 / North Lindbergh Boulevard

Turn left onto US 67 / North Lindbergh Boulevard

Lane positioning matters here

Use the left lane.

Fuel & Cost

Regular Gas

$7.75 one way

$15.51 round trip

$3.97/gal 25.4 MPG avg 17 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.36 $8.51 $17.03
premium $4.89 $9.55 $19.09
diesel $5.61 $10.95 $21.90

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$8

Estimated CO2 emission: 17.4 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $5 in charging · 0 stops · 65% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 14.9 0 $5.21 $2.38
Efficient EV 12.4 0 $4.34 $1.98
EV Truck/SUV 19.8 0 $6.94 $3.17

Gas CO2

17 kg

EV CO2

6 kg (65% 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 Apr 15, 2026

Origin

Crystal City, MO

Late night in Crystal City on Sunday

Local time

3:15 AM

CDT

Current temp

56°F

Unavailable

Live forecast

Destination

Florissant, MO

Late night in Florissant on Sunday

Local time

3:15 AM

CDT

Current temp

83°F

Unavailable

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

27 degrees warmer at arrival

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

Road read

1h 5m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

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

What kind of drive is this?

Expect a highway-focused experience for the majority of this trip, with 82% of the route utilizing major roadways like I-270 and I-55. The longest uninterrupted stretch you'll encounter is 24.4 miles on I-270, allowing for consistent speed and minimal interruptions. While primarily interstate driving, you'll also navigate segments on North Lindbergh Boulevard, offering a slight variation in the road's personality. The overall feel is one of steady progress, with the focus on getting you to your destination efficiently.

82% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 24.4 mi on I 270.

How Hard Is This Drive?

8/10

This is a straightforward highway drive that stays mostly on I 270 and I 55. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 2.9 miles in near I 55 Business / McNutt Street.

Driving Effort 8/10

Demanding - plan breaks and stay ahead of the key maneuvers

Balances navigation complexity with total wheel time.

This drive requires moderate attention. Across 49.6 miles you will encounter 13 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 2.9 miles (I 55 Business / McNutt Street): Lane positioning matters here; at 21.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 21.3 miles: Highway fork - watch signs carefully. Lane positioning matters here.

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 Crystal City, MO to Florissant, MO, road signs begin pointing toward Chicago along the way.

Chicago

21.1 mi in | ~26m

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 1h 5m. Total distance: 49.6 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

1h 5m drive, comfortable solo distance.

EV Driver

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

First-Time Driver

Mostly highway driving (82%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 24.4 miles on I 270. 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 Florissant, 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 2.9 miles (I 55 Business / McNutt Street): Lane positioning matters here; at 21.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 21.3 miles: Highway fork - watch signs carefully. Lane positioning matters here.

Yes — Gateway Arch National Park and Ste. Geneviève National Historical 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 Florissant, 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, and NPS for national parks. See our methodology for refresh cadence and limitations.

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