How far is Athens, MO from Saint Peters, MO?
The driving distance from Athens, MO to Saint Peters, MO is about 161.6 miles (260 km), with a travel time of about 02h 46m by car.
- The straight-line flight distance is about 135.7 miles (218.4 km).
- For a round trip, plan for roughly 05h 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 02h 46m.
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 Ralls County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Chance Showers And Thunderstorms
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Athens and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Athens and Saint Peters.
-
1
Start on the route
1.5 mi · 4 min
-
2
Turn slight left
2.5 mi · 6 min
-
3
Turn left
12 mi · 18 min
-
4
Turn left
8.8 mi · 13 min
-
5
Take the ramp right toward MO 27 South: Hannibal
1519 ft · 42 sec
-
6
Merge slight left onto Avenue of the Saints
46.3 mi · 54 min · Avenue of the Saints
-
7
Continue on Avenue of the Saints
3.9 mi · 5 min · Avenue of the Saints
-
8
Turn right
1.7 mi · 2 min
-
9
Turn right onto Veterans Road
3.2 mi · 6 min · Veterans Road
-
10
At the end of the road, turn left onto County Road 422
85 m · 7 sec · County Road 422
-
11
Continue on Paris Gravel Road
2539 ft · 1 min · Paris Gravel Road
-
12
Take the ramp right
37 m · 3 sec
-
13
Merge slight left onto Avenue of the Saints
73.7 mi · 1 hr 27 min · Avenue of the Saints
-
14
Take the exit slight left toward I 70 East: Saint Louis
2705 ft · 51 sec
-
15
Merge slight left onto Dwight D Eisenhower Highway
10.9 mi · 13 min · Dwight D Eisenhower Highway
-
16
Take the exit slight right toward Mid Rivers Mall Drive
889 ft · 19 sec
-
17
Keep slight left to continue on Mid Rivers Mall Drive
63 m · 4 sec
-
18
Turn straight onto Mid Rivers Mall Drive
61 m · 6 sec · Mid Rivers Mall Drive
-
19
Take the ramp straight toward I 70 West: Wentzville
1419 ft · 20 sec
-
20
Merge slight left
146 m · 7 sec
-
21
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Athens 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.
Avenue of the Saints
Merge slight left onto Avenue of the Saints
73.7 mi · 01h 27m
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.
Slight Chance Rain Showers then Chance Showers And Thunderstorms leaving Athens and Mostly Sunny near Saint Peters.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Athens to Saint Peters?
The road trip is about 161.6 miles (260 km) and usually takes 02h 46m 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?
Flint Hill is a useful midpoint, sitting about 83.3 miles from Athens and 78.3 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 135.7 miles (218.4 km), while the road route adds roughly 25.9 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 12:58 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.49 one way or $42.99 round trip. Estimated CO2 is about 50.7 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Chance Showers And Thunderstorms around Athens and Mostly Sunny near Saint Peters.
Stop Ideas Near Flint Hill
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 Flint Hill.
Quincy
Hermann
La Plata
Fort Madison station
Flight Path Map
This map shows the direct air route between Athens and Saint Peters. Straight-line distance: 135.69 mi (218.37 km).
#1 Athens
Township in Missouri
| Population | 2,080 |
| Coordinates | 40.5825400, -91.6985000 |
| Altitude | 186 |
| 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: 260 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 23m |
| 40 mph (64.37 km/h) | 04h 02m |
| 50 mph (80.47 km/h) | 03h 13m |
| 60 mph (96.56 km/h) | 02h 41m |
| 70 mph (112.65 km/h) | 02h 18m |
| 80 mph (129 km/h) | 02h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $21.49 | $42.99 |
| Mid-grade | $4.25 | $24.24 | $48.48 |
| Premium | $4.65 | $26.53 | $53.06 |
| Diesel | $5.30 | $30.23 | $60.47 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.