Phoenix to San Luis is 204.4 miles and takes about 3h 52m via Blue Star Memorial Highway, with a fuel budget near $39 and enough daylight to finish in a day. This one-day trip stays within Arizona, traversing the Desert Southwest region for its entire duration. You'll experience a mix of highway driving and surface roads as you head south. Given the relatively short distance and duration, this route is ideal for a straightforward, single-day excursion.
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
102.2 miles from Phoenix, AZ
A natural place for your longest stop of the day
, about 2h 1m into the drive
.
Main Roads
Road
Distance
Duration
Blue Star Memorial Highway
106.8 mi
1h 48m
Arizona State Highway 85
28.5 mi
33m
Robert A. Vaughan Expressway
20.9 mi
24m
Papago Freeway
19 mi
21m
Pearl Harbor Memorial Highway
11.9 mi
12m
East Cesar Chavez Boulevard
4.5 mi
7m
South Oglesby Road
3.6 mi
5m
East Pima Street
2.4 mi
5m
Longest stretch:
Blue Star Memorial Highway
— 106.8 mi, about 1h 48m
Turn-by-Turn Driving Directions
Step-by-step road directions between Phoenix, AZ and San Luis, AZ.
1
Start on West Washington Street
0.5 mi·1 min·West Washington Street
Use the straight / left lanes.
2
Turn right onto North 7th Avenue
0.9 mi·1 min·North 7th Avenue
Use the straight / slight left lanes.
3
Take the ramp
0.4 mi·54 sec
Toward I 10 West: Los AngelesUse the left lane.
4
Merge onto I 10
19 mi·21 min·Papago Freeway
Use the straight / slight right lanes.
5
Continue on I 10
12 mi·12 min·Pearl Harbor Memorial Highway
Use the straight / slight right lanes.
6
Take the exit
1.1 mi·2 min
Exit 112Toward AZ 85: Yuma, San DiegoUse the straight / slight right lanes.
7
Continue on AZ 85
3.6 mi·5 min·South Oglesby Road
8
Continue on AZ 85; US 80 Hist
1.0 mi·1 min·Gila Bend-Buckeye Highway
9
Continue on AZ 85
28 mi·33 min·Arizona State Highway 85
10
Take the exit onto AZ 85
0.6 mi·1 min·Gila Bend-Buckeye Highway
Toward AZ-85 South: Gila Bend
11
Continue on AZ 85
0.3 mi·43 sec·Arizona State Highway 85
12
Continue on AZ 85
2.4 mi·5 min·East Pima Street
13
Take the exit onto I 8 Bus; US 80 Hist
0.7 mi·1 min·I 8 Bus; US 80 Hist
Toward I 8 West: San Diego
14
Merge onto I 8
107 mi·1 hr 48 min·Blue Star Memorial Highway
15
Take the exit
0.3 mi·40 sec
Toward AZ 195: Araby Road, San Luis
16
Keep slight left at fork
267 ft·7 sec
Toward AZ 195: Araby Road, San Luis
17
Enter roundabout onto AZ 195
267 ft·3 sec·South Araby Road
18
Continue on AZ 195
0.1 mi·9 sec·South Araby Road
19
Enter roundabout onto AZ 195
188 ft·2 sec·South Araby Road
20
Continue on AZ 195
0.5 mi·33 sec·South Araby Road
21
Continue on AZ 195
21 mi·24 min·Robert A. Vaughan Expressway
Use the straight / right lanes.
22
Continue on AZ 195
4.5 mi·7 min·East Cesar Chavez Boulevard
23
Turn left onto 4th Avenue
0.5 mi·54 sec·4th Avenue
24
At end of road, turn right onto Urtuzuastegui Street
0.2 mi·37 sec·Urtuzuastegui Street
25
Arrive at destination
Urtuzuastegui Street
Trip Plan
For this 3h 52m drive, consider an early morning departure from Phoenix to maximize daylight, especially since it's a single-day trip. The 204.4 miles can easily be completed without an overnight stay. With a fuel cost estimate of $39, you'll want to ensure your tank is full before leaving Phoenix, as there's only one recommended stop. Keep an eye on your fuel gauge, particularly during the longer 106.8-mile stretch on the Blue Star Memorial Highway.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 102.2 miles from Phoenix, AZ, or about 2h 1m into the drive.
The longest continuous stretch on this route runs about 106.8 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 45 miles or 55m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 102.2 miles or 2h 1m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 8m
Traffic, exits, and arrival timing usually matter more near San Luis, AZ than in the middle of the route.
Before You Leave
+
Open the route before leaving Phoenix, 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 Phoenix, AZ
This is one driving day of about 204.4 miles and 3h 52m.
Your first comfortable stop window is around 45 miles from Phoenix, 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 Blue Star Memorial Highway for about 106.8 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 14
5 decision points cluster between mile 0.5 and 177.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.5 mi into trip|~1m in|North 7th Avenue
Turn right onto North 7th Avenue
Lane positioning matters here
Use the straight / slight left lanes.
5
1.4 mi into trip|~3m in
Take the ramp toward I 10 West: Los Angeles
Lane positioning matters here
Use the left lane.
Toward I 10 West: Los Angeles
8
32.7 mi into trip|~38m in
Take the exit toward AZ 85: Yuma, San Diego
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 112
Toward AZ 85: Yuma, San Diego
6
177.6 mi into trip|~3h 19m in
Keep slight left at fork toward AZ 195: Araby Road, San Luis
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward AZ 195: Araby Road, San Luis
6
177.6 mi into trip|~3h 19m in|AZ 195 / South Araby Road
Enter roundabout onto AZ 195 / South Araby Road
Roundabout - know your exit number before entering
Fuel & Cost
Regular Gas
$37.43 one way
$74.86 round trip
$4.65/gal25.4 MPG avg72 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.00
$40.27
$80.54
premium
$5.34
$42.97
$85.94
diesel
$6.37
$51.29
$102.59
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$37
Meals
$25–$50
Total
$62–$87
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 71.5 kg one way.
Driving Electric?
About $21 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
61.3
0
$21.46
$9.81
Efficient EV
51.1
0
$17.89
$8.18
EV Truck/SUV
81.8
1
$28.62
$13.08
Gas CO2
72 kg
EV CO2
24 kg (67% 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 Oct 17, 2026
Origin
Phoenix, AZ
Late night
in Phoenix on Sunday
Local time
3:22 AM
MST
Current temp
69°F
Mostly Cloudy
ENE 15 mph1% chanceLive forecast
Wind Advisory
Wind Advisory issued October 17 at 4:59AM MST until October 17 at 2:00PM MST by NWS Tucson AZ
Wind Advisory
Wind Advisory issued October 17 at 4:59AM MST until October 17 at 2:00PM MST by NWS Tucson AZ
Destination
San Luis, AZ
Late night
in San Luis on Sunday
Local time
3:22 AM
MST
Current temp
81°F
Slight Chance Rain Showers then Mostly Cloudy
NE 10 to 20 mph20% chanceLive forecast
Wind Advisory
Wind Advisory issued October 17 at 4:59AM MST until October 17 at 2:00PM MST by NWS Tucson AZ
Wind Advisory
Wind Advisory issued October 17 at 4:59AM MST until October 17 at 2:00PM MST by NWS Tucson AZ
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 warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 52m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This route features a 34% highway share, meaning you'll transition from faster-paced highway driving to surface roads. The longest continuous stretch on the Blue Star Memorial Highway is 106.8 miles. Expect to encounter a mix of highway and surface road conditions throughout the 204.4-mile drive. You'll likely notice more frequent exits and merges as you approach and leave urban areas.
34% highway, the rest on surface roads — varied driving throughout.
25 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 106.8 mi on Blue Star Memorial Highway.
How Hard Is This Drive?
7/10
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.5 miles in near North 7th Avenue.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 14 significant decision points across 204.4 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.5 miles (North 7th Avenue): Lane positioning matters here; at 1.4 miles: Lane positioning matters here; at 32.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
1,132 ft131 ft
Total Climb
344 ft
Total Descent
1,301 ft
Highest Point
1,132 ft
~29.2 mi in
Elevation Range
1,002 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Phoenix, AZ to San Luis, AZ, road signs begin pointing toward San Diego along the way.
Phoenix is the capital of the state of Arizona, the most populous city in the American Southwest. Warm and sunny winter weather have ensured a thriving tourism industry, and the city has become the region's primary political, cultural, economic, and transportation center. Phoenix is extremely hot and dry in the summertime, so always have sunscreen with you! It had about 1,625,000 residents in 2021, and is the fifth largest city in the United States.
Top landmarks
•Arizona State Capitol — state capitol building of the U.S. state of Arizona
•Phoenix Art Museum — art museum in Phoenix, Arizona
•St. Mary's Basilica — Roman Catholic church in Phoenix, Arizona
Doable as a same-day drive at 3h 52m. Total distance: 204.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 52m drive, comfortable solo distance.
Scenic Drive
Mixed highway & surface route profile.
Frequently Asked Questions
The longest stretch is about 106.8 miles on Blue Star Memorial Highway. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
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 San Luis, 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 0.5 miles (North 7th Avenue): Lane positioning matters here; at 1.4 miles: Lane positioning matters here; at 32.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Possible but tiring. At 3.9 hours each way, an in-and-out day trip would put you behind the wheel for 7.8 hours — manageable with a long break at San Luis, AZ, but most travelers stay overnight.
