Trip from Palo Alto, CA to San Diego, CA

Drive Time

9h 7m

Distance

476.3 mi

766 km

Drive Score

7/10

Good drive

Same Day?

2-day trip

Fuel Cost

$110

one way

EV Charging

station data

Best Time to Leave

Save up to 25 min

4 AM

8h 59m ★

6 AM

9h 8m

8 AM

9h 24m

10 AM

9h 13m

12 PM

9h 12m

3 PM

9h 14m

5 PM

9h 23m

8 PM

9h 3m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly

Google Maps Waze Apple Maps

Download GPX

Palo Alto, CA

Stephen Leonardi

San Diego, CA

Lindsey Willard

Trip Overview

Driving from Palo Alto to San Diego covers 482.2 miles along the California coast, typically taking about 7 hours and 32 minutes of pure travel time. Because this route stays within the Pacific Coast region, you will experience consistent coastal geography for the duration of your trip. While it is technically possible to complete the journey in a single 1-day push, be prepared for a long day behind the wheel. You should budget approximately $66 for fuel to cover the distance. This drive is best suited for those who don't mind a turn-heavy local feel rather than a straight interstate sprint, so factor in extra time for traffic or necessary breaks.

Trip Pace

Best split across 2 days

Treat the return leg as its own travel day rather than an afterthought.

Break Rhythm

2 planned breaks

Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

Midpoint

238.1 miles from Palo Alto, CA

A natural place for your longest stop of the day , about 4h 29m into the drive .

Drive Character

This journey is characterized by its turn-heavy local nature, requiring your full attention as you navigate away from the Palo Alto area. You will spend your time transitioning through various road types, including Embarcadero Road and the Bayshore Freeway, before settling onto US 101 South. Since the highway share is 0 percent, expect a more technical driving experience rather than a monotonous interstate cruise. With the longest uninterrupted stretch being 0 miles on Embarcadero Road, you will find that the route demands frequent adjustments and active steering throughout the day. It is an engaging drive that keeps you alert as you make your way south.

Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.

There are about 35 navigation steps in the underlying route data, so the final approach matters more than the middle miles.

Westside Freeway is the longest continuous segment at about 181.1 miles.

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on Westside Freeway and I 5 Truck. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 4.9 miles in near US 101 / Bayshore Freeway.

Route Complexity 10/10

High effort - long or complex enough to need steady focus all day

This is a demanding drive. With 31 significant decision points across 476.3 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 4.9 miles (US 101 / Bayshore Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 332.5 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 357.5 miles (I 5 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.

Critical Maneuvers

5 of 31 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

4.9 mi into trip | ~8m in | US 101 / Bayshore Freeway

Keep slight left at fork onto US 101 / Bayshore Freeway toward US 101 South: San Jose, Los Angeles

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Toward US 101 South: San Jose, Los Angeles

332.5 mi into trip | ~6h 15m in | I 5 Truck

Keep slight right at fork onto I 5 Truck toward I 405 South

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes. Exit 158 Toward I 405 South

357.5 mi into trip | ~6h 44m in | I 5 / Golden State Freeway

Keep slight left at fork onto I 5 / Golden State Freeway toward CA 60 East, I 5 South: Pomona, Soto Street, Santa Ana

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the slight left / straight lanes. Toward CA 60 East, I 5 South: Pomona, Soto Stre...

391.9 mi into trip | ~7h 27m in | Jamboree Road

Turn left onto Jamboree Road toward CA 261 Toll North: Jamboree Road, Riverside

Lane positioning matters here. Multiple destination signs - pick the right one

Use the left lane. Toward CA 261 Toll North: Jamboree Road, Rivers...

475.4 mi into trip | ~9h 5m in

Take the exit toward Front Street, Civic Center, 2nd Avenue

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 17 Toward Front Street, Civic Center, 2nd Avenue

Towns Along This Route

Between Palo Alto, CA and San Diego, CA, road signs point toward Santa Ana, Broadway and Riverside.

Santa Ana

357.5 mi in | ~6h 44m | via I 5

Broadway

384.7 mi in | ~7h 16m

Riverside

391.9 mi in | ~7h 27m | via Jamboree Road

Main Roads

Road	Distance	Duration
Westside Freeway	181.1 mi	3h 14m
I 5 Truck	83.3 mi	1h 36m
San Diego Freeway	76.5 mi	1h 29m
Bayshore Freeway	45.8 mi	52m
Pacheco Pass Highway	40.6 mi	50m
Santa Ana Freeway	35 mi	40m
Golden State Freeway	5.3 mi	6m
Walnut Avenue	2.2 mi	4m

Longest stretch: Westside Freeway — 181.1 mi, about 3h 14m

Turn-by-Turn Driving Directions

Step-by-step road directions between Palo Alto, CA and San Diego, CA.

Start on Middlefield Road

98 ft · 11 sec · Middlefield Road

Turn sharp right onto Embarcadero Road

1.0 mi · 3 min · Embarcadero Road

Use the straight / right lanes.

Take the ramp

0.4 mi · 58 sec

Toward US 101 South: San Jose

Merge onto US 101

3.4 mi · 3 min · Bayshore Freeway

Toward US 101 South: San Jose, Los Angeles Use the straight / slight right lanes.

Keep slight left at fork onto US 101

42 mi · 48 min · Bayshore Freeway

Toward US 101 South: San Jose, Los Angeles Use the straight / slight right lanes.

Take the exit onto CA 152

0.3 mi · 39 sec · CA 152

Toward CA 152 East: 10th Street, Pacheco Pass Road

Turn left onto CA 152

353 ft · 12 sec · East 10th Street

Continue on CA 152

41 mi · 50 min · Pacheco Pass Highway

Take the exit

0.6 mi · 1 min

Toward I 5: Los Angeles

Merge onto I 5

181 mi · 3 hr 14 min · Westside Freeway

Use the straight / slight right lanes.

Keep slight right at fork onto I 5 Truck

58 mi · 1 hr 6 min · I 5 Truck

Use the straight / slight right lanes.

Keep slight left at fork onto I 5

4.1 mi · 4 min · Golden State Freeway

Use the straight / slight right lanes.

Keep slight right at fork onto I 5 Truck

0.3 mi · 17 sec · I 5 Truck

Exit 158 Toward I 405 South Use the straight / slight right lanes.

Keep slight left at fork onto I 5 Truck

25 mi · 29 min · I 5 Truck

Use the straight / slight right lanes.

Keep slight left at fork onto I 5

1.3 mi · 1 min · Golden State Freeway

Toward CA 60 East, I 5 South: Pomona, Soto Street, Santa Ana Use the slight left / straight lanes.

Merge onto I 5

26 mi · 30 min · Santa Ana Freeway

Use the straight / slight right lanes.

Keep slight right at fork onto I 5

0.2 mi · 16 sec · Santa Ana Freeway

Use the straight / slight right lanes.

Take the exit

0.8 mi · 57 sec

Toward Broadway, Main Street, Santa Ana Use the straight / slight right lanes.

Keep slight left at fork

0.1 mi · 10 sec

Use the straight / slight right lanes.

Keep slight left at fork

0.2 mi · 12 sec

Toward I 5 South

Merge onto I 5

0.8 mi · 54 sec · Santa Ana Freeway

Keep slight right at fork onto I 5

0.8 mi · 52 sec · Santa Ana Freeway

Keep slight right at fork onto I 5

1.2 mi · 1 min · Santa Ana Freeway

Use the straight / slight right lanes.

Take the exit

0.7 mi · 1 min

Exit 102 Toward Newport Avenue Use the slight right lane.

Turn right onto Newport Avenue

0.4 mi · 44 sec · Newport Avenue

Use the right lane.

Turn left onto Walnut Avenue

2.2 mi · 4 min · Walnut Avenue

Turn left onto Jamboree Road

0.5 mi · 37 sec · Jamboree Road

Toward CA 261 Toll North: Jamboree Road, Riverside Use the left lane.

Take the exit

0.3 mi · 21 sec

Toward I 5 South

Merge onto I 5

5.5 mi · 6 min · Santa Ana Freeway

Use the straight / slight right lanes.

Keep slight left at fork onto I 5

0.8 mi · 55 sec · Santa Ana Freeway

Use the straight / slight right lanes.

Merge onto I 5

76 mi · 1 hr 29 min · San Diego Freeway

Use the straight / slight right lanes.

Take the exit

0.2 mi · 28 sec

Exit 17 Toward Front Street, Civic Center, 2nd Avenue Use the straight / slight right lanes.

Keep slight right at fork

0.1 mi · 14 sec

Toward Front Street, Civic Center

Continue on Front Street

0.5 mi · 1 min · Front Street

Use the straight / left lanes.

Arrive at destination

Front Street

Trip Plan

To manage the 482.2-mile distance effectively, plan for at least 2 dedicated stops to stretch your legs and reset. Since the route involves significant local navigation, departing early in the morning is your best strategy to avoid peak congestion. Keep your $66 fuel budget in mind, as local roads can sometimes lead to fluctuating consumption rates compared to open highways. Because there are no long, uninterrupted stretches, use the smaller segments between turns as natural milestones to evaluate your fatigue levels. Staying flexible with your pace will make this 7-hour and 32-minute trip much more manageable than trying to power through without breaks.

Morning Departure

Start early — leave by 6-7 AM to arrive at a reasonable hour.

Evening Departure

This is a long drive — plan for a morning departure or consider splitting it into two days.

This drive is better paced as a 2-day trip.

Plan roughly 2 meaningful breaks for fuel, food, and rest.

The halfway point lands around 238.1 miles from Palo Alto, CA, or about 4h 29m into the drive.

The longest continuous stretch on this route runs about 181.1 miles.

Consider an overnight stop or starting very early.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 105 miles or 2h 6m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 238.1 miles or 4h 29m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Overnight split

Day 1 wrap after about 238.1 miles or 4h 29m

Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.

Final approach

Final hour starts around 7h 56m

Traffic, exits, and arrival timing usually matter more near San Diego, CA than in the middle of the route.

Before You Leave

Open the route before leaving Palo Alto, CA 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.

Pick one backup stop option before the midpoint in case traffic changes your pacing.

Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.

Day 1

Settle into the route from Palo Alto, CA

Aim for roughly 238 miles and 4.6 hours of wheel time on this day.

Day 2

Finish the approach into San Diego, CA

Aim for roughly 238 miles and 4.6 hours of wheel time on this day.

Your first comfortable stop window is around 105 miles from Palo Alto, CA.

This route usually feels better as a 2-day drive than as one long push.

Plan about 2 real breaks rather than only quick fuel stops.

The longest stretch is on Westside Freeway for about 181.1 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 238.1 mi from Palo Alto, CA · 4h 29m into the drive

Mid-route town

Overnight candidate

Santa Clarita, CA

238 mi into the route

Best for: Hotel check-in, dinner, and a fresh start

This lines up well with a realistic day-end stop if you are breaking the drive into stages.

Find hotels in Santa Clarita, CA

Popular next leg

Santa Clarita, CA to San Diego, CA

152.8 mi · 3h 6m

Overnight Options

Night 1

Santa Clarita, CA

238 mi · about 4.6h in

A practical overnight split lands near Santa Clarita, CA after about 238 miles or 4.6 hours of driving.

Find hotels

Pacing Suggestions

Modesto, CA

Fuel and coffee

A short stop after about 105 miles helps settle the day before fatigue starts building.

Bakersfield, CA

Meal break

The midpoint is around 238.1 miles from Palo Alto, CA, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before Westside Freeway if your tank is already low. That segment runs about 181.1 miles.

Overnight split

Hotel stop

For a steadier pace, wrap day one after about 238 miles or 4.6 hours on the road.

Arriving in San Diego, CA

The final approach into San Diego, CA usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around San Diego, CA.

On a multi-day trip, keep the last day a little lighter so you reach San Diego, CA with some flexibility left in the schedule.

After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Regular Gas

$110.30 one way

$220.60 round trip

$5.88/gal 25.4 MPG avg 167 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$6.07	$113.75	$227.50
premium	$6.24	$117.07	$234.14
diesel	$5.64	$105.82	$211.63

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$110

Hotel (1n)

$80–$140

Meals

$50–$100

Total

$240–$350

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 166.6 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $50 in charging · 1 stop · 66% less CO₂

Vehicle Type	kWh	Stops	DC Fast	Home Charge
Average EV	142.9	1	$50.01	$22.86
Efficient EV	119.1	1	$41.68	$19.05
EV Truck/SUV	190.5	2	$66.68	$30.48

Gas CO2

167 kg

EV CO2

56 kg (66% less)

Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.

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 data refreshed 3 days ago

Origin

Palo Alto, CA

Afternoon in Palo Alto on Sunday

Local time

4:42 PM

PDT

Current temp

67°F

Unavailable

Live forecast

Destination

San Diego, CA

Afternoon in San Diego on Sunday

Local time

4:42 PM

PDT

Current temp

72°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.

For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.

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

5 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

9h 7m on the road

This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Palo Alto, CA to San Diego, CA covers 476.3 miles and takes about 9h 7m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are Westside Freeway, I 5 Truck, San Diego Freeway. Most of the drive stays on highways, so watch for ramps and exits.

Consider an overnight stop or starting very early.

Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 238 miles on day one.

The midpoint is about 238.1 miles from Palo Alto, CA. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $110.30 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.

Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.

Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

Between Palo Alto, CA and San Diego, CA, road signs point toward Santa Ana, Broadway and Riverside.

Was this route helpful?

Thanks for your feedback!

Your tip has been submitted. Thanks!

/500

Explore More

Explore more options from Palo Alto, CA or browse trips ending in San Diego, CA.

Looking for more statewide routes? Browse CA road trips.

Explore maps for Palo Alto, CA or San Diego, CA on MapSof.net.

Trip from Palo Alto, CA to San Diego, CA

Best Time to Leave

Trip Overview

Drive Character

How Hard Is This Drive?

Critical Maneuvers

Towns Along This Route

Main Roads

Turn-by-Turn Driving Directions

Trip Plan

Before You Leave

Where to Stop

Overnight Options

Pacing Suggestions

Arriving in San Diego, CA

Fuel & Cost

Travel Intel

Palo Alto, CA

San Diego, CA

Same local time

5 degrees warmer at arrival

9h 7m on the road

Frequently Asked Questions

Was this route helpful?

Explore More

Continue From San Diego, CA

More from Palo Alto, CA

More trips to San Diego, CA