How far is Saint Marys, KS from Lenexa, KS?
The driving distance from Saint Marys, KS to Lenexa, KS is about 84.6 miles (136.2 km), with a travel time of about 01h 25m by car.
- The straight-line flight distance is about 73.6 miles (118.5 km).
- For a round trip, plan for roughly 02h 51m 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 25m.
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.
Chance Rain Showers
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Saint Marys and Lenexa.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Marys and Lenexa.
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1
Start on North 6th Street
7 m · 6 sec · North 6th Street
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2
Turn left onto West Bertrand Avenue
12.9 mi · 18 min · West Bertrand Avenue
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3
Continue on West Railroad Street
1079 ft · 46 sec · West Railroad Street
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4
Continue on South Chestnut Street
7.4 mi · 10 min · South Chestnut Street
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5
Take the exit slight right
2111 ft · 52 sec
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6
Merge slight left
1.2 mi · 1 min
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7
Keep slight left to continue on I 70 East, US 40 East, KS 4 East: Kansas City, Gage Boulevard
1621 ft · 36 sec
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8
Keep slight left to continue on I-70 East, Kansas City
1046 ft · 25 sec
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9
Merge slight left onto Truman/Eisenhower Presidential Highway
7.3 mi · 9 min · Truman/Eisenhower Presidential Highway
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10
Keep slight left to continue on Truman/Eisenhower Presidential Highway
1.2 km · 52 sec · Truman/Eisenhower Presidential Highway
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11
Continue on Kansas Turnpike
14 mi · 14 min · Kansas Turnpike
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12
Take the exit slight right toward KS 10: Lecompton, Lawrence
2307 ft · 1 min
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13
Turn right onto South Lawrence Trafficway
35.4 mi · 39 min · South Lawrence Trafficway
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14
Take the exit slight right toward I 35, I 435 North: Wichita, Des Moines, Renner Boulevard
119 m · 6 sec
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15
Keep slight left to continue on I 35, I 435 North: Wichita, Des Moines
3070 ft · 48 sec
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16
Keep slight right to continue on I 35: Wichita, Des Moines
1.4 mi · 2 min
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17
Keep slight left to continue on I 35 North: Des Moines
3082 ft · 1 min
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18
Merge slight left
1.4 km · 1 min
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19
Take the exit slight right toward 95th Street
805 ft · 20 sec
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20
Keep slight right to continue on 95th Street, Pittsburgh State University, Brown Mackie College
90 m · 7 sec
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21
Turn straight onto West 95th Street
58 m · 4 sec · West 95th Street
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22
Turn slight right onto Lenexa Drive
1165 ft · 57 sec · Lenexa Drive
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23
Turn left onto Rosehill Road
152 m · 19 sec · Rosehill Road
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24
Turn right
22 m · 11 sec
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25
Turn left
78 m · 19 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 Saint Marys and Lenexa.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
South Lawrence Trafficway
Turn right onto South Lawrence Trafficway
35.4 mi · 00h 39m
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.
Chance Rain Showers leaving Saint Marys and Showers And Thunderstorms Likely near Lenexa.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Marys to Lenexa?
The road trip is about 84.6 miles (136.2 km) and usually takes 01h 25m 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 42.3 miles from Saint Marys and 42.4 miles from Lenexa.
How much longer is the road route than the straight-line distance?
The direct path is about 73.6 miles (118.5 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 3:38 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.28 one way or $22.55 round trip. Estimated CO2 is about 26.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Saint Marys and Showers And Thunderstorms Likely near Lenexa.
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 Saint Marys and Lenexa. Straight-line distance: 73.64 mi (118.52 km).
#1 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 |
#2 Lenexa
The most populous city in Johnson County, Kansas.
| Population | 56,156 |
| Coordinates | 38.9536200, -94.7335700 |
| Altitude | 314 |
| Country | United States |
End: (-94.73357, 38.953456)
Estimated Travel Time
Distance: 136 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 49m |
| 40 mph (64.37 km/h) | 02h 06m |
| 50 mph (80.47 km/h) | 01h 41m |
| 60 mph (96.56 km/h) | 01h 24m |
| 70 mph (112.65 km/h) | 01h 12m |
| 80 mph (129 km/h) | 01h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $11.28 | $22.55 |
| Mid-grade | $4.25 | $12.72 | $25.43 |
| Premium | $4.65 | $13.92 | $27.83 |
| Diesel | $5.30 | $15.86 | $31.72 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.