How far is Somerton, AZ from San Tan Valley, AZ?
The driving distance from Somerton, AZ to San Tan Valley, AZ is about 205.7 miles (331 km), with a travel time of about 03h 35m by car.
- The straight-line flight distance is about 189.1 miles (304.3 km).
- For a round trip, plan for roughly 07h 11m 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 35m.
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 Somerton and San Tan Valley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Somerton and San Tan Valley.
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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
143.4 mi · 2 hr 27 min · Blue Star Memorial Highway
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12
Take the exit slight right toward AZ 84 East: Maricopa
1294 ft · 35 sec
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13
Turn left onto Gila Bend–Casa Grande Highway
5.7 mi · 7 min · Gila Bend–Casa Grande Highway
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14
Turn left onto South John Wayne Parkway
14.8 mi · 19 min · South John Wayne Parkway
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15
Continue on Maricopa Road
9.6 mi · 11 min · Maricopa Road
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16
Turn right onto West Riggs Road
23.4 mi · 38 min · West Riggs Road
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17
Continue on West Combs Road
1.3 mi · 2 min · West Combs Road
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18
Continue on East Combs Road
2 mi · 4 min · East Combs Road
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19
Turn right onto North Schnepf Road
2 mi · 5 min · North Schnepf Road
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20
Arrive at your destination
0 m · 1 sec · East Skyline Drive
Car Route Details
A richer read on the saved driving route between Somerton and San Tan Valley.
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
143 mi · 02h 27m
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 Somerton and Sunny near San Tan Valley.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Somerton to San Tan Valley?
The road trip is about 205.7 miles (331 km) and usually takes 03h 35m 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 109.2 miles from Somerton and 96.5 miles from San Tan Valley.
How much longer is the road route than the straight-line distance?
The direct path is about 189.1 miles (304.3 km), while the road route adds roughly 16.6 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 9:48 AM MST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $33.93 one way or $67.87 round trip. Estimated CO2 is about 64.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Somerton and Sunny near San Tan Valley.
Stop Ideas Near Gila Bend
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Gila Bend Town Hall
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 San Tan Valley. Straight-line distance: 189.1 mi (304.32 km).
#1 Somerton
City in Arizona, United States
| Population | 16,716 |
| Coordinates | 32.5964400, -114.7096800 |
| Altitude | 32 |
| Country | United States |
#2 San Tan Valley
This Arizonan community is situated in the Sonoran Desert, surrounded by the San Tan Mountains Regional Park.
| Population | 0 |
| Coordinates | 33.1911000, -111.5280000 |
| Altitude | 462 |
| Country | United States |
End: East Skyline Drive (-111.527989, 33.19109)
Estimated Travel Time
Distance: 331 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 51m |
| 40 mph (64.37 km/h) | 05h 08m |
| 50 mph (80.47 km/h) | 04h 06m |
| 60 mph (96.56 km/h) | 03h 25m |
| 70 mph (112.65 km/h) | 02h 56m |
| 80 mph (129 km/h) | 02h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $33.93 | $67.87 |
| Mid-grade | $5.03 | $36.55 | $73.09 |
| Premium | $5.36 | $38.94 | $77.87 |
| Diesel | $6.27 | $45.53 | $91.07 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
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