How far is Kansas City, MO from Affton, MO?
The driving distance from Kansas City, MO to Affton, MO is about 246.7 miles (397 km), with a travel time of about 04h 47m by car.
- The straight-line flight distance is about 231.6 miles (372.8 km).
- For a round trip, plan for roughly 09h 34m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 04h 47m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
The most populous city in the state of Missouri.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms then Showers And Thunderstorms
Mostly Cloudy then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Kansas City and Affton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Kansas City and Affton.
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1
Start on Oak Street
6 m · 5 sec · Oak Street
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2
Turn right onto East 12th Street
1308 ft · 42 sec · East 12th Street
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3
Turn right onto Charlotte Street
145 m · 12 sec · Charlotte Street
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4
Take the ramp straight toward I 70 East, US 40 East
1164 ft · 28 sec
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5
Merge slight left onto George Brett Super Highway
6.9 mi · 9 min · George Brett Super Highway
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6
Continue on Truman/Eisenhower Presidential Highway
2.9 mi · 3 min · Truman/Eisenhower Presidential Highway
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7
Continue on Clifton J. Scott Memorial Highway
1.8 mi · 2 min · Clifton J. Scott Memorial Highway
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8
Continue on Truman/Eisenhower Presidential Highway
2.6 mi · 3 min · Truman/Eisenhower Presidential Highway
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9
Continue on Dwight D. Eisenhower Highway
52.5 mi · 57 min · Dwight D. Eisenhower Highway
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10
Continue on U.S. Submarine Veterans' Memorial Highway
32 mi · 34 min · U.S. Submarine Veterans' Memorial Highway
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11
Keep slight left to continue on U.S. Submarine Veterans' Memorial Highway
22.4 mi · 24 min · U.S. Submarine Veterans' Memorial Highway
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12
Continue on Dwight D. Eisenhower Highway
1.8 mi · 2 min · Dwight D. Eisenhower Highway
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13
Continue on Highway Patrol Sgt. Benjamin Booth Memorial Highway
1.6 mi · 2 min · Highway Patrol Sgt. Benjamin Booth Memorial Highway
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14
Continue on Sheriff Roger I. Wilson Memorial Highway
1.9 mi · 2 min · Sheriff Roger I. Wilson Memorial Highway
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15
Continue on Dwight D. Eisenhower Highway
81 mi · 1 hr 35 min · Dwight D. Eisenhower Highway
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16
Take the exit slight right toward I 64 East, US 40 East, US 61 South: Chesterfield
1567 ft · 33 sec
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17
Merge slight left onto Avenue of the Saints
25.1 mi · 31 min · Avenue of the Saints
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18
Take the exit slight right toward I 270: Chicago, Memphis
1829 ft · 39 sec
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19
Keep slight right to continue on I 270 South: Memphis
1691 ft · 31 sec
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20
Merge slight left
8.1 mi · 10 min
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21
Take the exit slight right toward MO 30: Gravois Road
1580 ft · 34 sec
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22
Keep slight left to continue on MO 30: Saint Louis, Ulysses S. Grant National Historic Site, Gravois Road
121 m · 11 sec
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23
Merge slight right
4.1 mi · 8 min
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24
Turn right
12 m · 8 sec
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25
Turn left
27 m · 6 sec
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26
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Kansas City 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.
Dwight D. Eisenhower Highway
Continue on Dwight D. Eisenhower Highway
81 mi · 01h 35m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Chance Showers And Thunderstorms then Showers And Thunderstorms leaving Kansas City 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 Kansas City to Affton?
The road trip is about 246.7 miles (397 km) and usually takes 04h 47m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Columbia is a useful midpoint, sitting about 123.1 miles from Kansas City and 123.6 miles from Affton.
How much longer is the road route than the straight-line distance?
The direct path is about 231.6 miles (372.8 km), while the road route adds roughly 15.1 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 7:26 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.81 one way or $65.62 round trip. Estimated CO2 is about 77.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms then Showers And Thunderstorms around Kansas City and Mostly Cloudy then Chance Showers And Thunderstorms near Affton.
Stop Ideas Near Columbia
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 Columbia.
Jefferson City
Sedalia
Hermann
Flight Path Map
This map shows the direct air route between Kansas City and Affton. Straight-line distance: 231.63 mi (372.77 km).
#1 Kansas City
The third most populous city in Missouri and the center of the Kansas City metropolitan area.
| Population | 495,327 |
| Coordinates | 39.0997300, -94.5785700 |
| Altitude | 274 |
| 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: 397 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 13m |
| 40 mph (64.37 km/h) | 06h 10m |
| 50 mph (80.47 km/h) | 04h 55m |
| 60 mph (96.56 km/h) | 04h 06m |
| 70 mph (112.65 km/h) | 03h 31m |
| 80 mph (129 km/h) | 03h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $32.81 | $65.62 |
| Mid-grade | $4.25 | $37.00 | $74.00 |
| Premium | $4.65 | $40.49 | $80.98 |
| Diesel | $5.30 | $46.14 | $92.29 |
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.