How far is Douglas, AZ from San Tan Valley, AZ?
The driving distance from Douglas, AZ to San Tan Valley, AZ is about 207.4 miles (333.7 km), with a travel time of about 03h 40m by car.
- The straight-line flight distance is about 172.3 miles (277.3 km).
- For a round trip, plan for roughly 07h 20m 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 40m.
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.
Census-designated place in Pima County, Arizona
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 Douglas and San Tan Valley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Douglas and San Tan Valley.
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1
Start on East 10th Street
2878 ft · 1 min · East 10th Street
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2
Turn right onto G Avenue
2438 ft · 50 sec · G Avenue
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3
Continue on 16th Street
21.8 mi · 28 min · 16th Street
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4
Turn right onto Old Douglas Road
3082 ft · 1 min · Old Douglas Road
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5
Merge right
10.1 mi · 16 min
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6
Turn left onto Whetstone TI-Junction SR 80 Highway
11.8 mi · 14 min · Whetstone TI-Junction SR 80 Highway
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7
Continue on State Route 90
2.1 mi · 3 min · State Route 90
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8
Continue on Whetstone TI-Junction SR 80 Highway
1.6 km · 2 min · Whetstone TI-Junction SR 80 Highway
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9
Turn right onto State Route 90 Bypass
4.4 mi · 6 min · State Route 90 Bypass
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10
Continue on State Route 90
3 mi · 3 min · State Route 90
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11
Continue on South Huachuca Boulevard
2.2 mi · 4 min · South Huachuca Boulevard
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12
Continue on State Route 90
12 mi · 14 min · State Route 90
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13
Continue on Huachuca Boulevard
9 mi · 10 min · Huachuca Boulevard
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14
Continue on South State Highway 90
1.3 mi · 2 min · South State Highway 90
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15
Turn left onto I 10, Tuscon, South Tuscon
3044 ft · 1 min
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16
Merge slight left onto Tucson-Benson Highway
41.4 mi · 43 min · Tucson-Benson Highway
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17
Continue on South Freeway
6 mi · 7 min · South Freeway
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18
Continue on Casa Grande-Tucson Highway
3.7 mi · 4 min · Casa Grande-Tucson Highway
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19
Keep slight left to continue on Casa Grande-Tucson Highway
39.1 mi · 40 min · Casa Grande-Tucson Highway
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20
Take the exit slight right toward AZ 87 North: Coolidge, Florence
3193 ft · 1 min
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21
Keep slight right
121 m · 10 sec
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22
Turn straight onto Junction I-10-Mesa Highway
10.5 mi · 16 min · Junction I-10-Mesa Highway
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23
Continue on J Street
8.6 mi · 15 min · J Street
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24
Turn right onto Florence-Coolidge Highway
2.9 mi · 4 min · Florence-Coolidge Highway
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25
Turn left onto North Attaway Road
3 mi · 5 min · North Attaway Road
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26
At the end of the road, turn left onto West Hunt Highway
8.7 mi · 13 min · West Hunt Highway
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27
Turn right onto North Gantzel Road
1.2 mi · 2 min · North Gantzel Road
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28
Turn right onto East Bella Vista Road
2 mi · 5 min · East Bella Vista Road
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29
Turn left onto North Sierra Vista Drive
2 mi · 6 min · North Sierra Vista Drive
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30
Turn left onto East Skyline Drive
1.6 km · 2 min · East Skyline Drive
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31
Arrive at your destination
0 m · 1 sec · East Skyline Drive
Car Route Details
A richer read on the saved driving route between Douglas 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.
Tucson-Benson Highway
Merge slight left onto Tucson-Benson Highway
41.4 mi · 00h 43m
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 Douglas 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 Douglas to San Tan Valley?
The road trip is about 207.4 miles (333.7 km) and usually takes 03h 40m 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?
Littletown is a useful midpoint, sitting about 105.9 miles from Douglas and 101.4 miles from San Tan Valley.
How much longer is the road route than the straight-line distance?
The direct path is about 172.3 miles (277.3 km), while the road route adds roughly 35.1 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 6:00 AM to 8:00 AM MST. If you want a more comfortable same-day return, try to leave by 9:40 AM MST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.24 one way or $72.48 round trip. Estimated CO2 is about 65.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Douglas and Sunny near San Tan Valley.
Stop Ideas Near Littletown
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 Littletown.
Tucson
Benson
Flight Path Map
This map shows the direct air route between Douglas and San Tan Valley. Straight-line distance: 172.31 mi (277.31 km).
#1 Douglas
City in Cochise County, Arizona, United States
| Population | 16,458 |
| Coordinates | 31.3445500, -109.5453400 |
| Altitude | 1222 |
| 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: 334 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 54m |
| 40 mph (64.37 km/h) | 05h 11m |
| 50 mph (80.47 km/h) | 04h 08m |
| 60 mph (96.56 km/h) | 03h 27m |
| 70 mph (112.65 km/h) | 02h 57m |
| 80 mph (129 km/h) | 02h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $36.24 | $72.48 |
| Mid-grade | $5.34 | $39.07 | $78.15 |
| Premium | $5.57 | $40.74 | $81.49 |
| Diesel | $6.37 | $46.60 | $93.20 |
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 · Jun 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.