The drive from San Diego to Phoenix takes approximately 5h 15min, covering 355 miles via I-5. Under normal conditions, expect to spend around $41 on gas.
Travel time can vary — during peak hours, weekends, or holidays, the journey may take 7–8+ hours. For the fastest trip, leave early morning (before 7 AM) or travel on weekday evenings.
Traffic Estimate
🟢 Light traffic
4h 28m
🔵 Typical
5h 15min
🔴 Heavy traffic
7h 37m
Traffic is usually worst during weekday rush hours (7–9 AM, 4–7 PM) and holiday weekends.
Trip Details
Distance355 miles (571 km)
Drive Time5h 15min
RouteI-5
Best TimeLate evening (8-10 PM)
Fuel Costs
Gas (30 mpg)~11.8 gallons
Est. Cost$41
Route Tips: I-5
The main West Coast highway. Heavy traffic near LA, San Francisco, and Seattle. Scenic stretches through Oregon and Northern California.
This trip can typically be done on a single tank of gas.
Best Time to Drive from San Diego to Phoenix
The best time to drive from San Diego to Phoenix is late evening (8-10 pm). Weekday mornings before 7 AM or evenings after 7 PM typically have the lightest traffic. Avoid Friday afternoons and Sunday evenings when possible.
🟢 Best:Late evening (8-10 PM)
🔴 Avoid:Rush hour (4-7 PM)
Driving vs Flying
🚗 Driving
5h 15min
~$41 gas
✈️ Flying
3h 13m
~$80–$150 flight
✈️ Flying is faster when you factor in airport time. Flight time is ~43 min but add ~2.5 hours for check-in, security, and boarding.
All Travel Options
🚗 Drive
5h 15min
~$41
🚌 Bus
7h 53m
~$28–$64
🚂 Train
6h 27m
~$43–$106
Estimated times and prices. Bus/train availability varies by route. Driving gives the most flexibility for stops and schedules.
Suggested Stops
Popular cities along the route for rest, food, or fuel:
📍 Joshua Tree
📍 Kingman
Frequently Asked Questions
How long does it take to drive from San Diego to Phoenix?
The drive from San Diego to Phoenix takes approximately 5h 15min covering 355 miles via I-5. Actual time may vary based on traffic, weather, and road conditions.
How much does gas cost for San Diego to Phoenix?
At 30 MPG and $3.50/gallon, expect to spend approximately $41 on gas for this 355-mile trip. You'll need about 11.8 gallons of fuel.
What is the best time to drive from San Diego to Phoenix?
Late evening (8-10 PM) to avoid heavy traffic. Weekday mornings before 7 AM or evenings after 7 PM typically have less congestion.
Are there tolls on the San Diego to Phoenix route?
There may be minor tolls (around $10) on parts of this route. Some sections have toll-free alternatives.
