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Trip from Saint Peters, MO to St. Louis, MO

Drive Time

43m

Distance

32.1 mi

52 km

Drive Score

6/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$5

one way

EV Charging

Loading...

station data

Best Time to Leave

Save up to 11 min
4 AM
0h 40m ★
6 AM
0h 44m
8 AM
0h 51m
10 AM
0h 46m
12 PM
0h 46m
3 PM
0h 47m
5 PM
0h 51m
8 PM
0h 41m

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

Best Time Drive vs Fly
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Downtown Saint Peters, MO, MO

Saint Peters, MO

Aleksandra Żmuda

Trip Overview

If you are looking for a quick commute from Saint Peters to St. Louis, this 32.1-mile journey is a straightforward trip that typically takes about 43 minutes. Since the entire route is located within the Midwest, you will find it to be a very familiar and accessible drive. It is perfectly suited for a one-day excursion, meaning you certainly won't need to worry about booking an overnight stay. With a fuel budget of approximately $5, this is an incredibly economical route to navigate. Whether you are heading into the city for work or a short visit, the simplicity of this connection makes it a stress-free option for your schedule.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

0 planned breaks

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

16.1 miles from Saint Peters, MO

A natural place for your longest stop of the day , about 20m into the drive .

Drive Character

This highway-focused drive relies heavily on I-70, which accounts for the majority of your time behind the wheel. With 88% of the trip spent on high-speed roads, you can expect a very efficient transit. You will spend the bulk of your journey on a single 28.1-mile stretch of I-70, providing a consistent pace before the transition onto the Andy Gammon Memorial Highway and North Tucker Boulevard. The personality of this route is defined by its utility and speed rather than winding scenery. It is a classic interstate corridor that prioritizes getting you to your destination quickly.

Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 16 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 70 is the longest continuous segment at about 28.1 miles.

Elevation Profile

Mostly flat terrain

620 ft 430 ft

Total Climb

324 ft

Total Descent

286 ft

Highest Point

620 ft

~22.8 mi in

Elevation Range

190 ft

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on I 70 and Andy Gammon Memorial Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1.2 miles in.

Route Complexity 10/10

High effort - long or complex enough to need steady focus all day

This is a demanding drive. With 11 significant decision points across 32.1 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.

Where does it get tricky?

The main spots that need attention: at 1.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 21.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 22.1 miles: Highway fork - watch signs carefully. Lane positioning matters here.

Critical Maneuvers

5 of 11 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

8
1.2 mi into trip | ~1m in

Take the exit toward MO 79: Elsberry, Louisiana

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

Use the straight / slight right lanes. Exit 220 Toward MO 79: Elsberry, Louisiana
7
21.8 mi into trip | ~27m in

Take the exit toward Bermuda Road

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

Use the slight right lane. Exit 241A Toward Bermuda Road
8
22.1 mi into trip | ~28m in

Keep slight left at fork toward I 70 East: Saint Louis

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight left lane. Toward I 70 East: Saint Louis
7
30.6 mi into trip | ~39m in | I 70 / Andy Gammon Memorial Highway

Keep slight right at fork onto I 70 / Andy Gammon Memorial Highway toward Illinois

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes. Toward Illinois
7
30.7 mi into trip | ~39m in

Take the exit toward Tucker Boulevard, Downtown Saint Louis

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

Exit 249B Toward Tucker Boulevard, Downtown Saint Louis

Main Roads

Road Distance Duration
I 70 28.1 mi 36m
Andy Gammon Memorial Highway 1.6 mi 2m
North Tucker Boulevard 1.1 mi 2m
MO 79 0.1 mi <1m
South Tucker Boulevard <0.1 mi <1m
Market Street <0.1 mi <1m
Longest stretch: I 70 — 28.1 mi, about 36m

Turn-by-Turn Driving Directions

Step-by-step road directions between Saint Peters, MO and St. Louis, MO.

1

Start on I 70

1.2 mi · 1 min · I 70
2

Take the exit

0.1 mi · 15 sec
Exit 220 Toward MO 79: Elsberry, Louisiana Use the straight / slight right lanes.
3

Keep slight left at fork

384 ft · 14 sec
Toward MO 79
4

Turn left onto MO 79

0.1 mi · 11 sec · MO 79
5

Take the ramp

0.2 mi · 18 sec
Toward I 70 East Use the right lane.
6

Merge onto I 70

20 mi · 25 min · I 70
Use the straight / slight right lanes.
7

Take the exit

0.3 mi · 24 sec
Exit 241A Toward Bermuda Road Use the slight right lane.
8

Keep slight left at fork

0.2 mi · 12 sec
Toward I 70 East: Saint Louis Use the slight left lane.
9

Merge onto I 70

6.8 mi · 9 min · I 70
Use the straight / slight right lanes.
10

Continue on I 70

1.5 mi · 2 min · Andy Gammon Memorial Highway
Use the straight / slight right lanes.
11

Keep slight right at fork onto I 70

267 ft · 6 sec · Andy Gammon Memorial Highway
Toward Illinois Use the straight / slight right lanes.
12

Take the exit

0.3 mi · 38 sec
Exit 249B Toward Tucker Boulevard, Downtown Saint Louis
13

Continue on North Tucker Boulevard

1.1 mi · 2 min · North Tucker Boulevard
14

Continue on South Tucker Boulevard

396 ft · 21 sec · South Tucker Boulevard
15

Turn right onto Market Street

86 ft · 2 sec · Market Street
16

Arrive at destination

Market Street

Trip Plan

Since this is a short 32.1-mile drive, you have plenty of flexibility regarding your departure time. You can easily complete the entire trip without needing to plan for any scheduled stops, though it is always wise to keep an eye on traffic patterns when entering St. Louis. Because the fuel cost is a modest $5, you won't need to worry about complex refueling logistics along the way. Your best strategy is to simply time your departure to avoid peak commuter hours on I-70 if you prefer a quieter drive. Keep in mind that the final transition onto North Tucker Boulevard will shift you from highway speeds into a local urban environment, so stay alert as you approach your final destination.

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 16.1 miles from Saint Peters, MO, or about 20m into the drive.
The longest continuous stretch on this route runs about 28.1 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 32.1 miles or 43m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 16.1 miles or 20m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 35m

Traffic, exits, and arrival timing usually matter more near St. Louis, MO than in the middle of the route.

Before You Leave

+

Open the route before leaving Saint Peters, MO so your first major turns are already loaded.

+

Leave with enough water and a charging cable within reach, not packed away.

+

Check your fuel range against the first long segment, especially if you are starting outside city service areas.

Day 1

Settle into the route from Saint Peters, MO

This is one driving day of about 32.1 miles and 43m.

Your first comfortable stop window is around 80 miles from Saint Peters, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
You may only need one short stretch stop if conditions stay smooth.
The longest stretch is on I 70 for about 28.1 miles.

Where to Stop

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

Halfway Point

Midpoint

About 16.1 mi from Saint Peters, MO · 20m into the drive

Downtown East Saint Louis, IL, IL

Mid-route town

Meal stop

East Saint Louis, IL

16 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

East Saint Louis, IL

Fuel and coffee

A short stop after about 32.1 miles helps settle the day before fatigue starts building.

Alton, IL

Meal break

The midpoint is around 16.1 miles from Saint Peters, MO, which is a good place for a longer meal and fuel stop.

Arriving in St. Louis, MO

The final approach into St. Louis, MO usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around St. Louis, MO.

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

Fuel & Cost

Regular Gas

$4.88 one way

$9.75 round trip

$3.86/gal 25.4 MPG avg 11 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.25 $5.37 $10.75
premium $4.80 $6.06 $12.12
diesel $5.64 $7.13 $14.26

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$5

Meals

$25–$50

Total

$30–$55

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 11.2 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $3 in charging · 0 stops · 64% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 9.6 0 $3.37 $1.54
Efficient EV 8 0 $2.81 $1.28
EV Truck/SUV 12.8 0 $4.49 $2.05

Gas CO2

11 kg

EV CO2

4 kg (64% 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 data refreshed 12 hours ago

Origin

Saint Peters, MO

Afternoon in Saint Peters on Sunday

Local time

3:48 PM

CDT

Current temp

62°F

Partly Cloudy

S 8 mph 2% chance Live forecast

Special Weather Statement

Special Weather Statement issued April 12 at 12:21AM CDT by NWS Paducah KY

Flood Warning

Flood Warning issued April 11 at 9:46PM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

Destination

St. Louis, MO

Afternoon in St. Louis on Sunday

Local time

3:48 PM

CDT

Current temp

61°F

Partly Cloudy

S 8 mph 2% chance Live forecast

Special Weather Statement

Special Weather Statement issued April 12 at 12:21AM CDT by NWS Paducah KY

Flood Warning

Flood Warning issued April 11 at 9:46PM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

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

1 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

43m 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.

Frequently Asked Questions

The drive from Saint Peters, MO to St. Louis, MO covers 32.1 miles and takes about 43m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 70, Andy Gammon Memorial Highway, North Tucker Boulevard. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 16.1 miles from Saint Peters, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $4.88 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a demanding drive. With 11 significant decision points across 32.1 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 1.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 21.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 22.1 miles: Highway fork - watch signs carefully. Lane positioning matters here.
The route from Saint Peters, MO to St. Louis, MO does not surface many named destination signs beyond the main corridor.
Mostly flat terrain. The route ranges from 430 ft to 620 ft elevation with about 324 ft of total climbing.

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