Spanning 151.8 miles through the heart of the Desert Southwest, this journey from Tempe Junction to Whetstone typically takes 2 hours and 42 minutes. Because this is a manageable distance, it works perfectly as a single-day trip, allowing you to reach your destination without the need for an overnight stay. You should budget approximately $30 for fuel to cover the transit. The route relies on a combination of the Phoenix-Casa Grande Highway, Casa Grande-Tucson Highway, and the Tucson-Benson Highway. Since both origin and destination are firmly within the Desert Southwest, you can expect a consistent arid landscape throughout your travels.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
75.9 miles from Tempe Junction, AZ
A natural place for your longest stop of the day
, about 1h 21m into the drive
.
Main Roads
Road
Distance
Duration
Casa Grande-Tucson Highway
54.6 mi
55m
Tucson-Benson Highway
41.4 mi
43m
Phoenix-Casa Grande Highway
37.8 mi
38m
Maricopa Freeway
6.7 mi
7m
North Freeway
6.1 mi
6m
West Broadway Road
1.6 mi
3m
Hohokam Expressway
1.4 mi
1m
South Roosevelt Street
0.5 mi
1m
Longest stretch:
Casa Grande-Tucson Highway
— 54.6 mi, about 55m
Turn-by-Turn Driving Directions
Step-by-step road directions between Tempe Junction, AZ and Whetstone, AZ.
1
Start on West 13th Street
0.3 mi·55 sec·West 13th Street
2
Turn left onto South Roosevelt Street
0.5 mi·1 min·South Roosevelt Street
3
Turn right onto West Broadway Road
1.3 mi·2 min·West Broadway Road
4
Continue on West Broadway Road
0.3 mi·1 min·West Broadway Road
5
Turn left
0.2 mi·34 sec
Toward I 10 East: TucsonUse the left lane.
6
Merge onto AZ 143
1.4 mi·1 min·Hohokam Expressway
Toward I 10 East: Tucson
7
Keep slight left at fork
0.2 mi·25 sec
Toward I 10 East: East Tucson
8
Merge onto I 10
6.7 mi·7 min·Maricopa Freeway
Use the straight / slight right lanes.
9
Continue on I 10
38 mi·38 min·Phoenix-Casa Grande Highway
Use the straight / slight right lanes.
10
Continue on I 10
55 mi·55 min·Casa Grande-Tucson Highway
Use the straight / slight right lanes.
11
Continue on I 10
6.1 mi·6 min·North Freeway
Use the straight / slight right lanes.
12
Continue on I 10
41 mi·43 min·Tucson-Benson Highway
Use the straight / slight right lanes.
13
Take the exit
0.6 mi·1 min
Exit 302Toward AZ 90 East: Fort Huachuca, Sierra Vista
14
Turn right onto AZ 90
0.4 mi·45 sec·South State Highway 90
15
Turn left onto West Casa del Rio Drive
383 ft·21 sec·West Casa del Rio Drive
16
Arrive at destination
West Casa del Rio Drive
Trip Plan
Since this is a straightforward 2-hour and 42-minute trip, you have plenty of flexibility in your departure time. Plan for at least one stop to break up the journey, which helps keep you alert on the more technical, turn-heavy sections. Keep an eye on your fuel gauge before leaving Tempe Junction, as the $30 estimate assumes steady driving conditions. Given the turn-heavy nature of the route, try to avoid peak traffic hours to ensure a smoother transition between the highway and local roads. Prioritize your comfort by pacing your single planned stop toward the middle of the drive to refresh before the final stretch into Whetstone.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 75.9 miles from Tempe Junction, AZ, or about 1h 21m into the drive.
The longest continuous stretch on this route runs about 54.6 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 33 miles or 38m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 75.9 miles or 1h 21m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 12m
Traffic, exits, and arrival timing usually matter more near Whetstone, AZ than in the middle of the route.
Before You Leave
+
Open the route before leaving Tempe Junction, AZ so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Tempe Junction, AZ
This is one driving day of about 151.8 miles and 2h 42m.
Your first comfortable stop window is around 33 miles from Tempe Junction, AZ.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Casa Grande-Tucson Highway for about 54.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 8
5 decision points cluster between mile 0.3 and 150.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0.3 mi into trip|~0m in|South Roosevelt Street
Turn left onto South Roosevelt Street
Navigation decision point
8
2.3 mi into trip|~5m in
Turn left toward I 10 East: Tucson
Lane positioning matters here
Use the left lane.
Toward I 10 East: Tucson
5
4 mi into trip|~7m in
Keep slight left at fork toward I 10 East: East Tucson
Highway fork - watch signs carefully
Toward I 10 East: East Tucson
5
4.2 mi into trip|~7m in|I 10 / Maricopa Freeway
Merge onto I 10 / Maricopa Freeway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
150.7 mi into trip|~2h 39m in
Take the exit toward AZ 90 East: Fort Huachuca, Sierra Vista
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 302
Toward AZ 90 East: Fort Huachuca, Sierra Vista
Fuel & Cost
Regular Gas
$30.24 one way
$60.48 round trip
$5.06/gal25.4 MPG avg53 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.36
$32.00
$64.01
premium
$5.59
$33.41
$66.83
diesel
$5.61
$33.52
$67.03
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$30
Meals
$25–$50
Total
$55–$80
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 53.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $16 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
45.5
0
$15.94
$7.29
Efficient EV
38
0
$13.28
$6.07
EV Truck/SUV
60.7
0
$21.25
$9.72
Gas CO2
53 kg
EV CO2
18 kg (66% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 15, 2026
Origin
Tempe Junction, AZ
Night
in Tempe Junction on Saturday
Local time
9:20 PM
MST
Current temp
90°F
Unavailable
Live forecast
Destination
Whetstone, AZ
Night
in Whetstone on Saturday
Local time
9:20 PM
MST
Current temp
78°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
12 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 42m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Saguaro National Park
National Park
Tucson, Arizona is home to the nation's largest cacti. The giant saguaro is the universal symbol of the American west. These majestic plants, found only in a small portion of the United States, are pr...
9 mi from route
~22 min detour
$25
near mile 120.4
Park Closure: Red Hills Visitor Center (TMD) theater closed for repairs
An Ancestral Sonoran Desert People's farming community and "Great House" are preserved at Casa Grande Ruins. Whether a gathering place for people or simply a waypoint marker in an extensive system of...
11 mi from route
~27 min detour
Free
near mile 41.9
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a turn-heavy local drive that demands your full attention behind the wheel. While about 10% of your time will be spent on highways, the remainder of the route navigates local roads that shift the pace significantly. You will encounter your longest uninterrupted segment while traveling 54.6 miles along the Casa Grande-Tucson Highway. The transition between fast-paced highway stretches and more technical local segments keeps the drive engaging. Be prepared for the road character to evolve as you move away from the junction and deeper into the desert corridor.
Only 10% highway — the rest is turn-by-turn surface driving.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 54.6 mi on Casa Grande-Tucson Highway.
How Hard Is This Drive?
6/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 8 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.3 miles in near South Roosevelt Street.
Driving Effort6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 151.8 miles you will encounter 8 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 0.3 miles (South Roosevelt Street): Navigation decision point; at 2.3 miles: Lane positioning matters here; at 4 miles: Highway fork - watch signs carefully.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 42m. Total distance: 151.8 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 42m drive, comfortable solo distance.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 54.6 miles on Casa Grande-Tucson Highway. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Whetstone, AZ before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 0.3 miles (South Roosevelt Street): Navigation decision point; at 2.3 miles: Lane positioning matters here; at 4 miles: Highway fork - watch signs carefully.
Yes — Saguaro National Park and Casa Grande Ruins National Monument. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Whetstone, AZ before heading back.
