How far is Cape Girardeau, MO from Affton, MO?
The driving distance from Cape Girardeau, MO to Affton, MO is about 107.8 miles (173.5 km), with a travel time of about 02h 04m by car.
- The straight-line flight distance is about 96.8 miles (155.8 km).
- For a round trip, plan for roughly 04h 08m 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 04m.
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 and the county seat of Ste.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Cloudy then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Cape Girardeau and Affton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Cape Girardeau and Affton.
-
1
Start on Broadway Street
2 mi · 4 min · Broadway Street
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2
Turn right onto North Kingshighway
3.6 mi · 6 min · North Kingshighway
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3
Take the ramp slight right toward I 55 North: Saint Louis
1606 ft · 39 sec
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4
Merge slight left
95.1 mi · 1 hr 42 min
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5
Continue on Rosa Parks Highway
4.3 mi · 5 min · Rosa Parks Highway
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6
Take the exit slight right toward Reavis Barracks Road
742 ft · 24 sec
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7
Turn left onto Reavis Barracks Road
1.2 km · 2 min · Reavis Barracks Road
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8
Continue on Mackenzie Road
2623 ft · 1 min · Mackenzie Road
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9
Turn left onto Reavis Road
2639 ft · 1 min · Reavis Road
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10
Turn right onto Tesson Ferry Road
2511 ft · 58 sec · Tesson Ferry Road
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11
Continue on Tesson Ferry Road
87 m · 19 sec · Tesson Ferry Road
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12
Turn right
69 m · 17 sec
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13
Turn slight right
20 m · 5 sec
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14
Turn right
27 m · 6 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Cape Girardeau and Affton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 55 North
Merge slight left
95.1 mi · 01h 42m
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.
Mostly Sunny leaving Cape Girardeau and Mostly Cloudy then Chance Showers And Thunderstorms near Affton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Cape Girardeau to Affton?
The road trip is about 107.8 miles (173.5 km) and usually takes 02h 04m 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?
Sainte Genevieve is a useful midpoint, sitting about 53.9 miles from Cape Girardeau and 53.9 miles from Affton.
How much longer is the road route than the straight-line distance?
The direct path is about 96.8 miles (155.8 km), while the road route adds roughly 11 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 2:22 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.33 one way or $28.66 round trip. Estimated CO2 is about 33.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Cape Girardeau and Mostly Cloudy then Chance Showers And Thunderstorms near Affton.
Stop Ideas Near Sainte Genevieve
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 Sainte Genevieve.
Du Quoin
Gateway Transportation Center
Kirkwood
Carbondale station
Flight Path Map
This map shows the direct air route between Cape Girardeau and Affton. Straight-line distance: 96.8 mi (155.78 km).
#1 Cape Girardeau
The second-largest city in Cape Girardeau County, Missouri.
| Population | 41,588 |
| Coordinates | 37.3058800, -89.5181500 |
| Altitude | 108 |
| Country | United States |
#2 Affton
Census designated place
| Population | 20,307 |
| Coordinates | 38.5506100, -90.3331700 |
| Altitude | 188 |
| Country | United States |
End: Affton (-90.33317, 38.55061)
Estimated Travel Time
Distance: 173 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 35m |
| 40 mph (64.37 km/h) | 02h 41m |
| 50 mph (80.47 km/h) | 02h 09m |
| 60 mph (96.56 km/h) | 01h 47m |
| 70 mph (112.65 km/h) | 01h 32m |
| 80 mph (129 km/h) | 01h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $14.33 | $28.66 |
| Mid-grade | $4.25 | $16.16 | $32.32 |
| Premium | $4.65 | $17.69 | $35.37 |
| Diesel | $5.30 | $20.16 | $40.31 |
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 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.