How far is San Tan Valley, AZ from Somerton, AZ?
The driving distance from San Tan Valley, AZ to Somerton, AZ is about 219.1 miles (352.6 km), with a travel time of about 04h 14m by car.
- The straight-line flight distance is about 189.1 miles (304.3 km).
- For a round trip, plan for roughly 08h 29m 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 04h 14m.
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
Sunny
Driving Route Map
The map below follows the saved road route between San Tan Valley and Somerton.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Tan Valley and Somerton.
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1
Start on East Skyline Drive
46 m · 4 sec · East Skyline Drive
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2
Continue on North Schnepf Road
2 mi · 5 min · North Schnepf Road
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3
Turn left onto East Combs Road
2 mi · 4 min · East Combs Road
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4
Continue on West Combs Road
1.3 mi · 2 min · West Combs Road
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5
Continue on East Riggs Road
23.4 mi · 37 min · East Riggs Road
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6
Turn left onto North Maricopa Road
9.6 mi · 11 min · North Maricopa Road
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7
Continue on North John Wayne Parkway
14.8 mi · 19 min · North John Wayne Parkway
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8
At the end of the road, turn right onto Gila Bend–Casa Grande Highway
5.6 mi · 6 min · Gila Bend–Casa Grande Highway
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9
Take the exit slight right toward I 8 West: San Diego
2124 ft · 52 sec
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10
Merge slight left onto Phoenix Bypass Route
31.6 mi · 32 min · Phoenix Bypass Route
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11
Continue on Blue Star Memorial Highway
111.9 mi · 1 hr 54 min · Blue Star Memorial Highway
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12
Take the exit slight right toward AZ 195: Araby Road, San Luis
1661 ft · 41 sec
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13
Keep slight left to continue on AZ 195: Araby Road, San Luis
81 m · 8 sec
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14
Enter the roundabout and take exit 3 toward South Araby Road
82 m · 4 sec · South Araby Road
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15
Exit the roundabout onto South Araby Road
723 ft · 9 sec · South Araby Road
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16
Enter the roundabout and take exit 2 toward Robert A. Vaughan Expressway
57 m · 3 sec · South Araby Road
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17
Exit the rotary onto South Araby Road
2385 ft · 35 sec · South Araby Road
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18
Turn right onto East 32nd Street
5.8 mi · 9 min · East 32nd Street
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19
Turn left onto West 32nd Street
1.7 mi · 3 min · West 32nd Street
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20
Turn left onto South Avenue B
4 mi · 5 min · South Avenue B
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21
Continue on San Luis–Yuma–Quartzsite Highway
1.3 mi · 2 min · San Luis–Yuma–Quartzsite Highway
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22
Continue on West County 16th Street
1.2 km · 50 sec · West County 16th Street
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23
Continue on East Main Street
1.7 mi · 2 min · East Main Street
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24
Turn left onto South Musgrove Avenue
113 m · 18 sec · South Musgrove Avenue
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25
Turn right onto East Cano Street
112 m · 18 sec · East Cano Street
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26
Turn right onto South Somerton Avenue
93 m · 6 sec · South Somerton Avenue
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27
Arrive at your destination
0 m · 1 sec · South Somerton Avenue
Car Route Details
A richer read on the saved driving route between San Tan Valley and Somerton.
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 San Tan Valley and Sunny near Somerton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Tan Valley to Somerton?
The road trip is about 219.1 miles (352.6 km) and usually takes 04h 14m 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 109.4 miles from San Tan Valley and 109.7 miles from Somerton.
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 30 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 8:30 AM MST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.13 one way or $72.26 round trip. Estimated CO2 is about 68.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around San Tan Valley and Sunny near Somerton.
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 San Tan Valley and Somerton. Straight-line distance: 189.1 mi (304.32 km).
#1 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 |
#2 Somerton
City in Arizona, United States
| Population | 16,716 |
| Coordinates | 32.5964400, -114.7096800 |
| Altitude | 32 |
| Country | United States |
End: Somerton (-114.70968, 32.59644)
Estimated Travel Time
Distance: 353 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 18m |
| 40 mph (64.37 km/h) | 05h 28m |
| 50 mph (80.47 km/h) | 04h 22m |
| 60 mph (96.56 km/h) | 03h 39m |
| 70 mph (112.65 km/h) | 03h 07m |
| 80 mph (129 km/h) | 02h 44m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $36.13 | $72.26 |
| Mid-grade | $5.03 | $38.91 | $77.83 |
| Premium | $5.36 | $41.46 | $82.91 |
| Diesel | $6.27 | $48.48 | $96.97 |
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 · Oct 15, 2026