How far is Somerton, AZ from Casa Grande, AZ?
The driving distance from Somerton, AZ to Casa Grande, AZ is about 185.8 miles (299 km), with a travel time of about 02h 53m by car.
- The straight-line flight distance is about 172.7 miles (277.9 km).
- For a round trip, plan for roughly 05h 47m 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 02h 53m.
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.
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 Somerton and Casa Grande.
Turn-by-Turn Driving Directions
Step-by-step road directions between Somerton and Casa Grande.
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1
Start on South Somerton Avenue
23 m · 6 sec · South Somerton Avenue
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2
Turn right onto East Main Street
1.8 mi · 2 min · East Main Street
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3
Continue on West County 16th Street
1.2 km · 50 sec · West County 16th Street
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4
Continue on San Luis–Yuma–Quartzsite Highway
1.3 mi · 2 min · San Luis–Yuma–Quartzsite Highway
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5
Continue on South Avenue B
4 mi · 5 min · South Avenue B
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6
Turn right onto West 32nd Street
1.7 mi · 3 min · West 32nd Street
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7
Continue on West 32nd Street
5.8 mi · 9 min · West 32nd Street
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8
Turn left onto South Araby Road
2514 ft · 38 sec · South Araby Road
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9
Enter the roundabout and take exit 2 toward Robert A. Vaughan Expressway
34 m · 2 sec
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10
Exit the rotary
2212 ft · 54 sec
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11
Merge slight left onto Blue Star Memorial Highway
166.2 mi · 2 hr 50 min · Blue Star Memorial Highway
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12
Take the exit slight right toward Trekell Road
1542 ft · 46 sec
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13
Turn left onto South Trekell Road
2.7 mi · 4 min · South Trekell Road
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14
Turn left onto Jimmie Kerr Boulevard
3232 ft · 1 min · Jimmie Kerr Boulevard
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15
Enter the roundabout and take exit 1 toward North Casa Grande Avenue
9 m · 1 sec · North Casa Grande Avenue
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16
Exit the roundabout onto North Casa Grande Avenue
849 ft · 23 sec · North Casa Grande Avenue
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17
Continue on East 2nd Street
3187 ft · 2 min · East 2nd Street
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18
Continue on West Gila Bend Highway
38 m · 24 sec · West Gila Bend Highway
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19
Arrive at your destination
0 m · 1 sec · West Gila Bend Highway
Car Route Details
A richer read on the saved driving route between Somerton and Casa Grande.
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
Merge slight left onto Blue Star Memorial Highway
166 mi · 02h 50m
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.
Sunny leaving Somerton and Sunny near Casa Grande.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Somerton to Casa Grande?
The road trip is about 185.8 miles (299 km) and usually takes 02h 53m 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?
Gila Bend is a useful midpoint, sitting about 93.3 miles from Somerton and 92.5 miles from Casa Grande.
How much longer is the road route than the straight-line distance?
The direct path is about 172.7 miles (277.9 km), while the road route adds roughly 13.1 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 12:42 PM MST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.43 one way or $64.86 round trip. Estimated CO2 is about 58.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Somerton and Sunny near Casa Grande.
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 Somerton and Casa Grande. Straight-line distance: 172.69 mi (277.92 km).
#1 Somerton
City in Arizona, United States
| Population | 16,716 |
| Coordinates | 32.5964400, -114.7096800 |
| Altitude | 32 |
| Country | United States |
#2 Casa Grande
The most populous city in Pinal County, Arizona.
| Population | 61,183 |
| Coordinates | 32.8795000, -111.7573500 |
| Altitude | 426 |
| Country | United States |
End: West Gila Bend Highway (-111.757373, 32.879483)
Estimated Travel Time
Distance: 299 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 11m |
| 40 mph (64.37 km/h) | 04h 38m |
| 50 mph (80.47 km/h) | 03h 42m |
| 60 mph (96.56 km/h) | 03h 05m |
| 70 mph (112.65 km/h) | 02h 39m |
| 80 mph (129 km/h) | 02h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $32.43 | $64.86 |
| Mid-grade | $5.34 | $34.96 | $69.93 |
| Premium | $5.57 | $36.46 | $72.91 |
| Diesel | $6.37 | $41.70 | $83.39 |
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.