How far is Kansas City, KS from Saint Marys, KS?
The driving distance from Kansas City, KS to Saint Marys, KS is about 88.1 miles (141.8 km), with a travel time of about 01h 43m by car.
- The straight-line flight distance is about 77.5 miles (124.8 km).
- For a round trip, plan for roughly 03h 26m 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 01h 43m.
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.
Township in Douglas County, Kansas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Mostly Cloudy then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Kansas City and Saint Marys.
Turn-by-Turn Driving Directions
Step-by-step road directions between Kansas City and Saint Marys.
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1
Start on the route
45 m · 13 sec
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2
Turn right onto Armstrong Avenue
86 m · 14 sec · Armstrong Avenue
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3
Turn right onto North 7th Street Trafficway
1.3 mi · 3 min · North 7th Street Trafficway
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4
Take the ramp slight right toward I 70 West, US 24 West, US 40 West, US 69 South: Topeka
54.3 mi · 56 min
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5
Keep slight right to continue on Kansas Turnpike
1.5 km · 1 min · Kansas Turnpike
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6
Continue on Truman/Eisenhower Presidential Highway
8.4 mi · 10 min · Truman/Eisenhower Presidential Highway
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7
Take the exit slight right toward US 75 North: Holton
1443 ft · 35 sec
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8
Continue on Addy Westgate Memorial Bridge
1.6 mi · 2 min · Addy Westgate Memorial Bridge
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9
Take the exit slight right toward US 24 West: Manhattan
1194 ft · 29 sec
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10
Merge slight left
21 mi · 29 min
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11
Turn right onto North 6th Street
7 m · 1 sec · North 6th Street
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12
Arrive at your destination
0 m · 1 sec · North 6th Street
Car Route Details
A richer read on the saved driving route between Kansas City and Saint Marys.
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 70 West
Take the ramp slight right toward I 70 West, US 24 West, US 40 West, US 69 South: Topeka
54.3 mi · 00h 56m
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.
Partly Sunny leaving Kansas City and Mostly Cloudy then Slight Chance Showers And Thunderstorms near Saint Marys.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Kansas City to Saint Marys?
The road trip is about 88.1 miles (141.8 km) and usually takes 01h 43m 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?
Kanwaka is a useful midpoint, sitting about 44 miles from Kansas City and 44.1 miles from Saint Marys.
How much longer is the road route than the straight-line distance?
The direct path is about 77.5 miles (124.8 km), while the road route adds roughly 10.6 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 3:04 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.73 one way or $23.46 round trip. Estimated CO2 is about 27.6 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Kansas City and Mostly Cloudy then Slight Chance Showers And Thunderstorms near Saint Marys.
Stop Ideas Near Kanwaka
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 Kanwaka.
Lawrence
Topeka
Union Station
Independence
Flight Path Map
This map shows the direct air route between Kansas City and Saint Marys. Straight-line distance: 77.55 mi (124.8 km).
#1 Kansas City
The second most populous city in Kansas.
| Population | 152,960 |
| Coordinates | 39.1141700, -94.6274600 |
| Altitude | 266 |
| Country | United States |
#2 Saint Marys
City in Pottawatomie and Wabaunsee couties in Kansas, United States
| Population | 2,652 |
| Coordinates | 39.1941600, -96.0711000 |
| Altitude | 291 |
| Country | United States |
End: Saint Marys (-96.0711, 39.19416)
Estimated Travel Time
Distance: 142 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 56m |
| 40 mph (64.37 km/h) | 02h 12m |
| 50 mph (80.47 km/h) | 01h 45m |
| 60 mph (96.56 km/h) | 01h 28m |
| 70 mph (112.65 km/h) | 01h 15m |
| 80 mph (129 km/h) | 01h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $11.73 | $23.46 |
| Mid-grade | $4.25 | $13.23 | $26.45 |
| Premium | $4.65 | $14.47 | $28.95 |
| Diesel | $5.30 | $16.50 | $32.99 |
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 Kansas · Jun 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.