How far is San Luis, AZ from Flagstaff, AZ?
The driving distance from San Luis, AZ to Flagstaff, AZ is about 243.5 miles (391.9 km), with a travel time of about 03h 51m by car.
- The straight-line flight distance is about 198.3 miles (319.1 km).
- For a round trip, plan for roughly 07h 42m 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 51m.
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.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between San Luis and Flagstaff.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Luis and Flagstaff.
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1
Start on the route
857 ft · 38 sec
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2
Continue on Indian Route 51
1.6 km · 4 min · Indian Route 51
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3
At the end of the road, turn right onto Indian Route 15
33.2 mi · 46 min · Indian Route 15
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4
Continue on South Chuichu Road
5.4 mi · 8 min · South Chuichu Road
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5
Turn right onto West Hanna Street
1 mi · 2 min · West Hanna Street
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6
Turn left onto South Trekell Road
2244 ft · 47 sec · South Trekell Road
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7
Take the ramp right toward I 8 East: Tucson
1841 ft · 45 sec
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8
Merge slight left onto Phoenix Bypass Route
3 mi · 3 min · Phoenix Bypass Route
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9
Keep slight left to continue on I 10 West: Phoenix
1.6 km · 2 min
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10
Merge slight left onto Phoenix-Casa Grande Highway
37.5 mi · 38 min · Phoenix-Casa Grande Highway
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11
Continue on Maricopa Freeway
12 mi · 14 min · Maricopa Freeway
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12
Keep slight right to continue on Maricopa Freeway
4.2 mi · 5 min · Maricopa Freeway
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13
Continue on Black Canyon Freeway
41.3 mi · 45 min · Black Canyon Freeway
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14
Continue on Phoenix–Cordes Junction Highway
8.9 mi · 10 min · Phoenix–Cordes Junction Highway
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15
Continue on Arizona Veterans Highway
13.4 mi · 14 min · Arizona Veterans Highway
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16
Keep slight left to continue on Arizona Veterans Highway
77.3 mi · 1 hr 18 min · Arizona Veterans Highway
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17
Continue on Prescott–Flagstaff Highway
1 km · 44 sec · Prescott–Flagstaff Highway
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18
Continue on Arizona Veterans Highway
2638 ft · 42 sec · Arizona Veterans Highway
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19
Continue on South Milton Road
1.8 mi · 5 min · South Milton Road
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20
Continue on West Historic Route 66
137 m · 14 sec · West Historic Route 66
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21
Arrive at your destination
0 m · 1 sec · West Historic Route 66
Car Route Details
A richer read on the saved driving route between San Luis and Flagstaff.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Arizona Veterans Highway
Keep slight left to continue on Arizona Veterans Highway
77.3 mi · 01h 18m
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.
Mostly Sunny leaving San Luis and Mostly Sunny near Flagstaff.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Luis to Flagstaff?
The road trip is about 243.5 miles (391.9 km) and usually takes 03h 51m 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?
Cave Creek is a useful midpoint, sitting about 121.6 miles from San Luis and 121.9 miles from Flagstaff.
How much longer is the road route than the straight-line distance?
The direct path is about 198.3 miles (319.1 km), while the road route adds roughly 45.2 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 9:18 AM MST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $42.53 one way or $85.06 round trip. Estimated CO2 is about 76.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around San Luis and Mostly Sunny near Flagstaff.
Stop Ideas Near Cave Creek
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 Cave Creek.
Phoenix (Metro Center Transit Station), Arizona
Phoenix (Airport), Arizona
Phoenix (Greyhound), Arizona
Maricopa
Flight Path Map
This map shows the direct air route between San Luis and Flagstaff. Straight-line distance: 198.27 mi (319.09 km).
#1 San Luis
Town in Yuma County, Arizona, United States
| Population | 36,242 |
| Coordinates | 32.3467300, -112.0409700 |
| Altitude | 547 |
| Country | United States |
#2 Flagstaff
The most populous city in Coconino County, Arizona.
| Population | 73,939 |
| Coordinates | 35.1980700, -111.6512700 |
| Altitude | 2104 |
| Country | United States |
End: US 180 (-111.651222, 35.198174)
Estimated Travel Time
Distance: 392 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 06m |
| 40 mph (64.37 km/h) | 06h 05m |
| 50 mph (80.47 km/h) | 04h 52m |
| 60 mph (96.56 km/h) | 04h 03m |
| 70 mph (112.65 km/h) | 03h 28m |
| 80 mph (129 km/h) | 03h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $42.53 | $85.06 |
| Mid-grade | $5.34 | $45.85 | $91.71 |
| Premium | $5.57 | $47.81 | $95.62 |
| Diesel | $6.37 | $54.68 | $109.37 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.