How far is Casa Grande, AZ from San Luis, AZ?
The driving distance from Casa Grande, AZ to San Luis, AZ is about 45.8 miles (73.7 km), with a travel time of about 01h 08m by car.
- The straight-line flight distance is about 40.3 miles (64.9 km).
- For a round trip, plan for roughly 02h 17m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MST.
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 08m.
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.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Casa Grande and San Luis.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casa Grande and San Luis.
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1
Start on West Gila Bend Highway
10 m · 3 sec · West Gila Bend Highway
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2
Continue on West Florence Boulevard
1 mi · 2 min · West Florence Boulevard
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3
Turn right onto North Trekell Road
4 mi · 7 min · North Trekell Road
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4
Turn right onto West Hanna Street
1 mi · 2 min · West Hanna Street
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5
Turn left onto South Chuichu Road
5.4 mi · 8 min · South Chuichu Road
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6
Continue on Indian Route 15
33.2 mi · 46 min · Indian Route 15
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7
Turn left onto Indian Route 51
1.1 mi · 4 min · Indian Route 51
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8
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Casa Grande and San Luis.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Indian Route 15
Continue on Indian Route 15
33.2 mi · 00h 46m
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 Casa Grande and Mostly Sunny near San Luis.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casa Grande to San Luis?
The road trip is about 45.8 miles (73.7 km) and usually takes 01h 08m 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?
Arizona City is a useful midpoint, sitting about 22.9 miles from Casa Grande and 22.9 miles from San Luis.
How much longer is the road route than the straight-line distance?
The direct path is about 40.3 miles (64.9 km), while the road route adds roughly 5.5 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 MST. If you want a more comfortable same-day return, try to leave by 4:12 PM MST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.97 one way or $15.94 round trip. Estimated CO2 is about 14.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Casa Grande and Mostly Sunny near San Luis.
Stop Ideas Near Arizona City
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 Arizona City.
Maricopa
Phoenix (Airport), Arizona
Phoenix (Greyhound), Arizona
Tucson
Flight Path Map
This map shows the direct air route between Casa Grande and San Luis. Straight-line distance: 40.34 mi (64.92 km).
#1 Casa Grande
The most populous city in Pinal County, Arizona.
| Population | 61,183 |
| Coordinates | 32.8795000, -111.7573500 |
| Altitude | 426 |
| Country | United States |
#2 San Luis
Town in Yuma County, Arizona, United States
| Population | 36,242 |
| Coordinates | 32.3467300, -112.0409700 |
| Altitude | 547 |
| Country | United States |
End: San Luis (-112.04097, 32.34673)
Estimated Travel Time
Distance: 74 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 31m |
| 40 mph (64.37 km/h) | 01h 08m |
| 50 mph (80.47 km/h) | 00h 54m |
| 60 mph (96.56 km/h) | 00h 45m |
| 70 mph (112.65 km/h) | 00h 39m |
| 80 mph (129 km/h) | 00h 34m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $7.97 | $15.94 |
| Mid-grade | $5.34 | $8.59 | $17.19 |
| Premium | $5.57 | $8.96 | $17.92 |
| Diesel | $6.37 | $10.25 | $20.50 |
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 Arizona · 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.