How far is Salem, MO from Saint Peters, MO?
The driving distance from Salem, MO to Saint Peters, MO is about 133.9 miles (215.5 km), with a travel time of about 02h 14m by car.
- The straight-line flight distance is about 93.8 miles (151 km).
- For a round trip, plan for roughly 04h 28m 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 02h 14m.
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.
Human settlement in Franklin County, Missouri, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Salem and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Salem and Saint Peters.
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1
Start on East 4th Street
29 m · 5 sec · East 4th Street
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2
Turn right onto North Main Street
1.3 km · 1 min · North Main Street
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3
Keep slight left
22.3 mi · 39 min
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4
At the end of the road, turn left
4.7 mi · 7 min
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5
Take the ramp right toward I 44 East: Saint Louis
890 ft · 22 sec
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6
Merge slight left
57.3 mi · 1 hr 1 min
-
7
Take the exit slight right toward I 44 Business, MO 100 East: Gray Summit
970 ft · 28 sec
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8
Turn left onto Manchester Road
13.4 mi · 19 min · Manchester Road
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9
Take the exit slight right toward MO 109
1108 ft · 31 sec
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10
Enter the roundabout and take exit 3 toward the route
68 m · 4 sec
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11
Exit the roundabout
157 m · 11 sec
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12
Enter the roundabout and take exit 1 toward the route
30 m · 2 sec
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13
Exit the roundabout
2129 ft · 45 sec
-
14
Enter the roundabout and take exit 2 toward the route
29 m · 2 sec
-
15
Exit the roundabout
4.3 mi · 7 min
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16
Enter the roundabout and take exit 2 toward South Eatherton Road
29 m · 1 sec · South Eatherton Road
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17
Exit the roundabout onto South Eatherton Road
2.4 mi · 5 min · South Eatherton Road
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18
Continue on Olive Street Road
1.5 km · 2 min · Olive Street Road
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19
Take the ramp left toward Chesterfield Airport Road
1.1 km · 1 min · Chesterfield Airport Road
-
20
Merge slight left onto Avenue of the Saints
2.7 mi · 3 min · Avenue of the Saints
-
21
Take the exit slight right toward MO 94: Defiance, Saint Charles
1013 ft · 16 sec
-
22
Keep slight right to continue on MO 94 East: Saint Charles
95 m · 5 sec
-
23
Merge slight left
3.4 mi · 5 min
-
24
Keep slight right to continue on Mid Rivers Mall Drive, Pitman Hill Road
1056 ft · 22 sec
-
25
Turn left onto Mid Rivers Mall Drive
4.7 mi · 10 min · Mid Rivers Mall Drive
-
26
Take the ramp straight toward I 70 West: Wentzville
1419 ft · 20 sec
-
27
Merge slight left
146 m · 7 sec
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28
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Salem and Saint Peters.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
I 44 East
Merge slight left
57.3 mi · 01h 01m
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.
Sunny leaving Salem and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Saint Peters.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Salem to Saint Peters?
The road trip is about 133.9 miles (215.5 km) and usually takes 02h 14m 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?
Oak Grove Village is a useful midpoint, sitting about 59.8 miles from Salem and 74.1 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 93.8 miles (151 km), while the road route adds roughly 40.1 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 2:02 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.80 one way or $35.60 round trip. Estimated CO2 is about 41.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Salem and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Saint Peters.
Stop Ideas Near Oak Grove Village
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Oak Grove Village.
Washington
Hermann
Kirkwood
Gateway Transportation Center
Flight Path Map
This map shows the direct air route between Salem and Saint Peters. Straight-line distance: 93.82 mi (150.99 km).
#1 Salem
City in Missouri, United States
| Population | 4,874 |
| Coordinates | 37.6456000, -91.5359800 |
| Altitude | 361 |
| Country | United States |
#2 Saint Peters
The most populous city in St.
| Population | 58,043 |
| Coordinates | 38.8003300, -90.6265100 |
| Altitude | 134 |
| Country | United States |
End: I 70 West (-90.626511, 38.800311)
Estimated Travel Time
Distance: 215 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 27m |
| 40 mph (64.37 km/h) | 03h 20m |
| 50 mph (80.47 km/h) | 02h 40m |
| 60 mph (96.56 km/h) | 02h 13m |
| 70 mph (112.65 km/h) | 01h 54m |
| 80 mph (129 km/h) | 01h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $17.80 | $35.60 |
| Mid-grade | $4.25 | $20.07 | $40.15 |
| Premium | $4.65 | $21.97 | $43.93 |
| Diesel | $5.30 | $25.03 | $50.07 |
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.