How far is Casa Grande, AZ from San Luis, AZ?
The driving distance from Casa Grande, AZ to San Luis, AZ is about 198.3 miles (319.2 km), with a travel time of about 03h 31m by car.
- The straight-line flight distance is about 178 miles (286.4 km).
- For a round trip, plan for roughly 07h 02m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MST.
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 31m.
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.
Town in Maricopa County, Arizona, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
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.
-
1
Start on West Gila Bend Highway
10 m · 3 sec · West Gila Bend Highway
-
2
Continue on West Florence Boulevard
1 mi · 2 min · West Florence Boulevard
-
3
Turn right onto North Trekell Road
3.4 mi · 6 min · North Trekell Road
-
4
Take the ramp right toward I 8 West: San Diego
1993 ft · 49 sec
-
5
Merge slight left onto Phoenix Bypass Route
54.4 mi · 54 min · Phoenix Bypass Route
-
6
Continue on Blue Star Memorial Highway
111.9 mi · 1 hr 54 min · Blue Star Memorial Highway
-
7
Take the exit slight right toward AZ 195: Araby Road, San Luis
1661 ft · 41 sec
-
8
Keep slight left to continue on AZ 195: Araby Road, San Luis
81 m · 8 sec
-
9
Enter the roundabout and take exit 3 toward South Araby Road
82 m · 4 sec · South Araby Road
-
10
Exit the roundabout onto South Araby Road
723 ft · 9 sec · South Araby Road
-
11
Enter the roundabout and take exit 2 toward Robert A. Vaughan Expressway
57 m · 3 sec · South Araby Road
-
12
Exit the rotary onto South Araby Road
2417 ft · 33 sec · South Araby Road
-
13
Continue on Robert A. Vaughan Expressway
20.9 mi · 24 min · Robert A. Vaughan Expressway
-
14
Continue on East Cesar Chavez Boulevard
4.5 mi · 7 min · East Cesar Chavez Boulevard
-
15
Turn left onto 4th Avenue
2637 ft · 55 sec · 4th Avenue
-
16
At the end of the road, turn right onto Urtuzuastegui Street
1286 ft · 38 sec · Urtuzuastegui Street
-
17
Arrive at your destination
0 m · 1 sec · Urtuzuastegui Street
Car Route Details
A richer read on the saved driving route between Casa Grande and San Luis.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Blue Star Memorial Highway
Continue on Blue Star Memorial Highway
112 mi · 01h 54m
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.
Sunny leaving Casa Grande and 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 198.3 miles (319.2 km) and usually takes 03h 31m 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?
Gila Bend is a useful midpoint, sitting about 99 miles from Casa Grande and 99.3 miles from San Luis.
How much longer is the road route than the straight-line distance?
The direct path is about 178 miles (286.4 km), while the road route adds roughly 20.3 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 MST. If you want a more comfortable same-day return, try to leave by 9:58 AM MST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $34.66 one way or $69.31 round trip. Estimated CO2 is about 62.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Casa Grande and Sunny near San Luis.
Stop Ideas Near Gila Bend
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 Gila Bend.
Maricopa
Phoenix (Greyhound), Arizona
Phoenix (Airport), Arizona
Phoenix (Metro Center Transit Station), Arizona
Flight Path Map
This map shows the direct air route between Casa Grande and San Luis. Straight-line distance: 177.98 mi (286.43 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 | 31,520 |
| Coordinates | 32.4870000, -114.7821800 |
| Altitude | 40 |
| Country | United States |
End: San Luis (-114.78218, 32.487)
Estimated Travel Time
Distance: 319 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 36m |
| 40 mph (64.37 km/h) | 04h 57m |
| 50 mph (80.47 km/h) | 03h 57m |
| 60 mph (96.56 km/h) | 03h 18m |
| 70 mph (112.65 km/h) | 02h 49m |
| 80 mph (129 km/h) | 02h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $34.66 | $69.31 |
| Mid-grade | $5.34 | $37.37 | $74.73 |
| Premium | $5.57 | $38.96 | $77.92 |
| Diesel | $6.37 | $44.56 | $89.12 |
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 · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.