How far is Barstow, CA from Flagstaff, AZ?
The driving distance from Barstow, CA to Flagstaff, AZ is about 352.6 miles (567.4 km), with a travel time of about 06h 09m by car.
- The straight-line flight distance is about 304.5 miles (490.1 km).
- For a round trip, plan for roughly 12h 18m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
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 06h 09m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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
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 Barstow and Flagstaff.
Turn-by-Turn Driving Directions
Step-by-step road directions between Barstow and Flagstaff.
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1
Start on East Main Street
16 m · 9 sec · East Main Street
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2
Turn left onto South Barstow Road
1.5 km · 2 min · South Barstow Road
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3
Take the ramp right toward I 15 North: Las Vegas, Needles
1255 ft · 30 sec
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4
Merge slight left onto Barstow and Mojave Freeway
2163 ft · 26 sec · Barstow and Mojave Freeway
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5
Keep slight right to continue on Needles Freeway
143.8 mi · 2 hr 34 min · Needles Freeway
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6
Take the exit slight right toward US 95 South: East Broadway, Blythe
1786 ft · 22 sec
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7
Continue straight
1420 ft · 17 sec
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8
Merge slight left onto Needles Freeway
10.6 mi · 11 min · Needles Freeway
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9
Continue on Purple Heart Trail
1619 ft · 18 sec · Purple Heart Trail
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10
Take the exit slight right toward Bullhead City, Laughlin, Havasu National Wildlife Refuge
2733 ft · 31 sec
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11
Merge slight left onto Purple Heart Trail
190 mi · 3 hr 10 min · Purple Heart Trail
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12
Take the exit slight right toward I 40 Business: Flagstaff
1 km · 1 min
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13
At the end of the road, turn right onto West Historic Route 66
3.7 mi · 6 min · West Historic Route 66
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14
Continue on West Historic Route 66
718 ft · 26 sec · West Historic Route 66
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15
At the end of the road, turn left onto South Milton Road
2905 ft · 1 min · South Milton Road
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16
Continue on West Historic Route 66
137 m · 14 sec · West Historic Route 66
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17
Arrive at your destination
0 m · 1 sec · West Historic Route 66
Car Route Details
A richer read on the saved driving route between Barstow and Flagstaff.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Purple Heart Trail
Merge slight left onto Purple Heart Trail
190 mi · 03h 10m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Barstow and Sunny near Flagstaff.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Barstow to Flagstaff?
The road trip is about 352.6 miles (567.4 km) and usually takes 06h 09m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Desert Hills is a useful midpoint, sitting about 176 miles from Barstow and 176.6 miles from Flagstaff.
How much longer is the road route than the straight-line distance?
The direct path is about 304.5 miles (490.1 km), while the road route adds roughly 48.1 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 7:30 AM PDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $77.89 one way or $155.77 round trip. Estimated CO2 is about 110.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Barstow and Sunny near Flagstaff.
Stop Ideas Near Desert Hills
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 Desert Hills.
El Garces Intermodal Transportation Facility
Laughlin, Nevada
Kingman
Kingman (Greyhound), Arizona
Flight Path Map
This map shows the direct air route between Barstow and Flagstaff. Straight-line distance: 304.5 mi (490.05 km).
#1 Barstow
City in San Bernardino County, California, United States
| Population | 23,692 |
| Coordinates | 34.8985900, -117.0228200 |
| Altitude | 663 |
| 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: Flagstaff (-111.65127, 35.19807)
Estimated Travel Time
Distance: 567 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 44m |
| 40 mph (64.37 km/h) | 08h 48m |
| 50 mph (80.47 km/h) | 07h 03m |
| 60 mph (96.56 km/h) | 05h 52m |
| 70 mph (112.65 km/h) | 05h 02m |
| 80 mph (129 km/h) | 04h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $6.26 | $77.89 | $155.77 |
| Mid-grade | $6.50 | $80.85 | $161.70 |
| Premium | $6.69 | $83.21 | $166.42 |
| Diesel | $8.41 | $104.66 | $209.32 |
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 California · Oct 15, 2026