How far is Lenexa, KS from Saint Marys, KS?
The driving distance from Lenexa, KS to Saint Marys, KS is about 200.5 miles (322.6 km), with a travel time of about 03h 39m by car.
- The straight-line flight distance is about 179.5 miles (288.9 km).
- For a round trip, plan for roughly 07h 18m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CST.
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 03h 39m.
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.
Human settlement in United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Drizzle then Mostly Cloudy
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Lenexa and Saint Marys.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lenexa and Saint Marys.
-
1
Start on the route
78 m · 21 sec
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2
Turn right
22 m · 10 sec
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3
Turn left onto Rosehill Road
152 m · 21 sec · Rosehill Road
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4
Turn right onto Lenexa Drive
635 ft · 31 sec · Lenexa Drive
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5
Continue on Lenexa Drive
757 ft · 34 sec · Lenexa Drive
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6
Turn right onto West 95th Street
1033 ft · 20 sec · West 95th Street
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7
Take the ramp slight left toward I 35 South, US 56 West, US 169 South: Wichita
908 ft · 22 sec
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8
Merge slight left
1.7 mi · 2 min
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9
Continue straight
37.1 mi · 39 min
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10
Continue straight
132.8 mi · 2 hr 14 min
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11
Take the exit slight right toward US 54, US 400
2804 ft · 1 min
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12
Merge slight left onto Vietnam Veterans Memorial Highway
23.7 mi · 30 min · Vietnam Veterans Memorial Highway
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13
Turn right onto South 247th Street West
3 mi · 7 min · South 247th Street West
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14
Turn left onto West 13th Street North
1.3 km · 3 min · West 13th Street North
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15
Arrive at your destination
0 m · 1 sec · West 13th Street North
Car Route Details
A richer read on the saved driving route between Lenexa 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 35 South
Continue straight
133 mi · 02h 14m
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.
Slight Chance Drizzle then Mostly Cloudy leaving Lenexa and Partly Cloudy near Saint Marys.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lenexa to Saint Marys?
The road trip is about 200.5 miles (322.6 km) and usually takes 03h 39m 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?
Plymouth is a useful midpoint, sitting about 100.1 miles from Lenexa and 100.4 miles from Saint Marys.
How much longer is the road route than the straight-line distance?
The direct path is about 179.5 miles (288.9 km), while the road route adds roughly 21 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 CST. If you want a more comfortable same-day return, try to leave by 9:42 AM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.02 one way or $54.04 round trip. Estimated CO2 is about 62.8 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Drizzle then Mostly Cloudy around Lenexa and Partly Cloudy near Saint Marys.
Stop Ideas Near Plymouth
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 Plymouth.
Topeka
Newton
Lawrence
Flight Path Map
This map shows the direct air route between Lenexa and Saint Marys. Straight-line distance: 179.54 mi (288.94 km).
#1 Lenexa
The most populous city in Johnson County, Kansas.
| Population | 56,156 |
| Coordinates | 38.9536200, -94.7335700 |
| Altitude | 314 |
| Country | United States |
#2 Saint Marys
Saint Marys is a place in Kansas, United States.
| Population | 0 |
| Coordinates | 37.7066800, -97.6400500 |
| Altitude | 461 |
| Country | United States |
End: Saint Marys (-97.64005, 37.70668)
Estimated Travel Time
Distance: 323 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 40m |
| 40 mph (64.37 km/h) | 05h 00m |
| 50 mph (80.47 km/h) | 04h 00m |
| 60 mph (96.56 km/h) | 03h 20m |
| 70 mph (112.65 km/h) | 02h 51m |
| 80 mph (129 km/h) | 02h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.82 | $27.02 | $54.04 |
| Mid-grade | $4.19 | $29.62 | $59.23 |
| Premium | $4.55 | $32.20 | $64.39 |
| Diesel | $5.92 | $41.86 | $83.72 |
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 · Nov 06, 2026