San Francisco to Bostonia is 509 miles and takes about 9h 38m via Westside Freeway and I 5 Truck, with a fuel budget near $111 and enough daylight to finish in a day. This route keeps you within California for its entirety, moving from the Pacific Coast region to the same region. Expect a long-haul drive that is predominantly highway cruising. It's recommended to split this trip over two days to make it more manageable. Consider your departure time carefully, as traffic around San Francisco can add significant time to your initial leg.
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
254.5 miles from San Francisco, CA
A natural place for your longest stop of the day
, about 4h 41m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
224.4 mi
4h
I 5 Truck
83.3 mi
1h 36m
San Diego Freeway
62.4 mi
1h 13m
Santa Ana Freeway
35 mi
40m
Arthur H. Breed Junior Freeway
29.3 mi
33m
William Elton Brown Freeway
17 mi
18m
MacArthur Freeway
15.9 mi
18m
San Clemente Canyon Freeway
13.1 mi
15m
Longest stretch:
Westside Freeway
— 224.4 mi, about 4h
Traffic on I-5
Hour-of-day weekday pattern from 460 FHWA count stations on your route.
Peak
3 PM
~3,834 veh/hr typical
· worst 4,705
Quietest
2 AM
~535 veh/hr
Peak-to-quiet ratio
7.2×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 96 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between San Francisco, CA and Bostonia, CA.
1
Start on Market Street
312 ft·7 sec·Market Street
2
Turn right onto 11th Street
0.6 mi·1 min·11th Street
3
Turn left onto Bryant Street
0.3 mi·1 min·Bryant Street
4
Take the ramp
0.3 mi·25 sec
Toward I 80 East: OaklandUse the left / straight lanes.
5
Merge onto I 80
0.9 mi·1 min·Route 80
6
Continue on I 80
5.8 mi·8 min·Dwight D. Eisenhower Highway
Use the straight / slight left lanes.
7
Take the exit
1.0 mi·1 min
Exit 8BToward I 580 East: Downtown Oakland, Hayward-StocktonUse the slight right lane.
8
Merge onto I 580
16 mi·18 min·MacArthur Freeway
Use the straight / slight left lanes.
9
Merge onto I 580
12 mi·13 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
10
Keep slight right at fork onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
11
Keep slight right at fork onto I 580
11 mi·11 min·William Elton Brown Freeway
12
Keep slight left at fork onto I 580
5.9 mi·6 min·William Elton Brown Freeway
13
Merge onto I 5
224 mi·4 hr·Westside Freeway
Use the straight / slight right lanes.
14
Keep slight right at fork onto I 5 Truck
58 mi·1 hr 6 min·I 5 Truck
Use the straight / slight right lanes.
15
Keep slight left at fork onto I 5
4.1 mi·4 min·Golden State Freeway
Use the straight / slight right lanes.
16
Keep slight right at fork onto I 5 Truck
0.3 mi·17 sec·I 5 Truck
Exit 158Toward I 405 SouthUse the straight / slight right lanes.
17
Keep slight left at fork onto I 5 Truck
25 mi·29 min·I 5 Truck
Use the straight / slight right lanes.
18
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 AnaUse the slight left / straight lanes.
19
Merge onto I 5
26 mi·30 min·Santa Ana Freeway
Use the straight / slight right lanes.
20
Keep slight right at fork onto I 5
0.2 mi·16 sec·Santa Ana Freeway
Use the straight / slight right lanes.
21
Take the exit
0.8 mi·57 sec
Toward Broadway, Main Street, Santa AnaUse the straight / slight right lanes.
22
Keep slight left at fork
0.1 mi·10 sec
Use the straight / slight right lanes.
23
Keep slight left at fork
0.2 mi·12 sec
Toward I 5 South
24
Merge onto I 5
0.8 mi·54 sec·Santa Ana Freeway
25
Keep slight right at fork onto I 5
0.8 mi·52 sec·Santa Ana Freeway
26
Keep slight right at fork onto I 5
1.2 mi·1 min·Santa Ana Freeway
Use the straight / slight right lanes.
27
Take the exit
0.7 mi·1 min
Exit 102Toward Newport AvenueUse the slight right lane.
28
Turn right onto Newport Avenue
0.4 mi·44 sec·Newport Avenue
Use the right lane.
29
Turn left onto Walnut Avenue
2.2 mi·4 min·Walnut Avenue
30
Turn left onto Jamboree Road
0.5 mi·37 sec·Jamboree Road
Toward CA 261 Toll North: Jamboree Road, RiversideUse the left lane.
31
Take the exit
0.3 mi·21 sec
Toward I 5 South
32
Merge onto I 5
5.5 mi·6 min·Santa Ana Freeway
Use the straight / slight right lanes.
33
Keep slight left at fork onto I 5
0.8 mi·55 sec·Santa Ana Freeway
Use the straight / slight right lanes.
34
Merge onto I 5
62 mi·1 hr 13 min·San Diego Freeway
Use the straight / slight right lanes.
35
Take the exit
0.8 mi·54 sec
Exit 31
36
Continue on I 805
4.0 mi·4 min·Jacob Dekema Freeway
Use the straight / slight right lanes.
37
Take the exit
0.2 mi·18 sec
Exit 23Toward CA 52: JunctionUse the straight / slight right lanes.
38
Keep slight left at fork
0.6 mi·56 sec
Toward CA 52 East: SanteeUse the straight / slight right lanes.
39
Merge onto CA 52
13 mi·15 min·San Clemente Canyon Freeway
Use the straight / slight right lanes.
40
Keep slight right at fork
0.7 mi·1 min
Exit 18BToward CA 67 South: El CajonUse the slight left / slight right lanes.
41
Merge onto CA 67
1.0 mi·1 min·San Vicente Freeway
Use the straight / slight right lanes.
42
Take the exit
0.3 mi·38 sec
Exit 1СToward Broadway, Fletcher ParkwayUse the straight / slight right lanes.
43
Turn left onto Broadway
1.5 mi·3 min·Broadway
44
Arrive at destination
Broadway
Trip Plan
Given the 9h 38m duration, planning for two days is wise. Aim to leave San Francisco early to beat the morning commute. You'll have two planned stops along the way, which should help break up the 509 miles. Consider stopping for the night around the halfway point, roughly between Bakersfield and Los Angeles, to split the driving evenly. Keep an eye on your fuel levels, especially as you approach the 224.4-mile stretch on the Westside Freeway, as services can be spaced out.
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 254.5 miles from San Francisco, CA, or about 4h 41m into the drive.
The longest continuous stretch on this route runs about 224.4 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 112 miles or 2h 8m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 254.5 miles or 4h 41m 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 254.5 miles or 4h 41m
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 8h 26m
Traffic, exits, and arrival timing usually matter more near Bostonia, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving San Francisco, 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 San Francisco, CA
Aim for roughly 255 miles and 4.8 hours of wheel time on this day.
Day 2
Finish the approach into Bostonia, CA
Aim for roughly 255 miles and 4.8 hours of wheel time on this day.
Your first comfortable stop window is around 112 miles from San Francisco, 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 224.4 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 39
5 decision points cluster between mile 8 and 505.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
8 mi into trip|~13m in
Take the exit toward I 580 East: Downtown Oakland, Hayward-Stockton
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 8B
Toward I 580 East: Downtown Oakland, Hayward-St...
8
358.1 mi into trip|~6h 37m 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
8
383.1 mi into trip|~7h 6m 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...
8
417.5 mi into trip|~7h 49m 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...
8
505.6 mi into trip|~9h 32m in
Keep slight right at fork toward CA 67 South: El Cajon
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Exit 18B
Toward CA 67 South: El Cajon
Fuel & Cost
Regular Gas
$123.14 one way
$246.28 round trip
$6.15/gal25.4 MPG avg178 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.34
$127.03
$254.06
premium
$6.50
$130.18
$260.35
diesel
$6.28
$125.77
$251.53
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$123
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$253–$363
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 178.1 kg one way.
Prices: EIA weekly data, 2026-10-19.
Driving Electric?
About $53 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
152.7
1
$53.45
$24.43
Efficient EV
127.3
1
$44.54
$20.36
EV Truck/SUV
203.6
2
$71.26
$32.58
Gas CO2
178 kg
EV CO2
60 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 as of Oct 21, 2026
Origin
San Francisco, CA
Afternoon
in San Francisco on Thursday
Local time
3:24 PM
PDT
Current temp
56°F
Mostly Cloudy
WSW 3 mph5% chanceLive forecast
Winter Weather Advisory
Winter Weather Advisory issued October 20 at 8:35PM PDT until October 22 at 11:00AM PDT by NWS Hanford CA
Flood Watch
Flood Watch issued October 20 at 8:34PM PDT until October 22 at 8:00PM PDT by NWS Hanford CA
Destination
Bostonia, CA
Afternoon
in Bostonia on Thursday
Local time
3:24 PM
PDT
Current temp
59°F
Partly Cloudy
0 mph2% chanceLive forecast
Winter Weather Advisory
Winter Weather Advisory issued October 20 at 8:35PM PDT until October 22 at 11:00AM PDT by NWS Hanford CA
Flood Watch
Flood Watch issued October 20 at 8:34PM PDT until October 22 at 8:00PM PDT by NWS Hanford CA
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
3 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 38m 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.
National Parks Near This Route
Worth a detour if your schedule allows.
San Francisco Maritime National Historical Park
National Historical Park
Established in 1988, San Francisco Maritime National Historical Park celebrates America’s maritime heritage on the Pacific Coast. Our 50-acre park has grown around Aquatic Park Cove, a protected area...
Rosie the Riveter WWII Home Front National Historical Park
National Historical Park
Celebrate and honor the contributions and sacrifices of American civilians on the WWII home front. Discover how diverse communities lived, worked, and interacted. Many faces, many stories, many truths...
Experience a park so rich it supports 19 distinct ecosystems with over 2,000 plant and animal species. Go for a hike, enjoy a vista, have a picnic or learn about the centuries of overlapping history f...
Walk among old growth coast redwoods, cooling their roots in the fresh water of Redwood Creek and lifting their crowns to reach the sun and fog. Federally protected as a National Monument since 1908,...
In 1542, Juan Rodriguez Cabrillo climbed out of his boat and onto shore, becoming the first European to set foot on what is now the West Coast of the United States. Cabrillo National Monument not only...
13 mi from route
~33 min detour
$20
near mile 491.5
On July 17, 1944, a massive explosion jolted the San Francisco East Bay area, shattering windows and lighting up the night sky. At Port Chicago Naval Magazine, 320 men were killed instantly when two s...
21 mi from route
~52 min detour
Free
near mile 17.6
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is 97% highway, so you'll spend most of your time on major freeways. The longest continuous stretch on the Westside Freeway is 224.4 miles. After this, you'll transition to the I 5 Truck and San Diego Freeway, which are also major arteries. You'll notice a dense pattern of exits and merges as you navigate through various populated areas. The drive is largely urban and suburban for much of its length.
97% highway — fuel and pacing are the main things to plan.
44 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 224.4 mi on Westside Freeway.
How Hard Is This Drive?
10/10
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 8 miles in.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 39 significant decision points across 509 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 8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 358.1 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 383.1 miles (I 5 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Hilly terrain with moderate elevation changes
2,910 ft54 ft
Total Climb
3,737 ft
Total Descent
3,306 ft
Highest Point
2,910 ft
~327.2 mi in
Elevation Range
2,856 ft
Notable High Points
2,910 ft at ~327.2 miles+2,042 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between San Francisco, CA and Bostonia, CA, road signs point toward Santa Ana, Broadway and Riverside.
The centerpiece of the Bay Area, San Francisco is one of the most visited cities in the world, and with good reason. The cultural center of northern California, San Francisco is renowned for its mixture of scenic beauty and unique culture that makes it one of the most vibrant and desirable cities in the nation, if not the world.
Sandwiched between the San Francisco Bay and the Pacific Ocean on a small square of land seven miles (11 km) on each side, San Francisco offers a wealth of treasures for the visitor, from the windswept and often foggy bay to the steep hills lined with Victorian homes that overlook the spectacular scenery of the city.
Top landmarks
•Golden Gate Bridge — suspension bridge on the San Francisco Bay
•Alcatraz Island — island in San Francisco, California, United States of America
•San Francisco–Oakland Bay Bridge — suspension bridge connecting San Francisco and Oakland, California, USA
The longest stretch is about 224.4 miles on Westside Freeway. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 255 miles on day one.
Yes — we found about 40 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
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 Bostonia, CA 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 2 meaningful breaks. There are 40 rest areas along the route for bathroom stops.
The main spots that need attention: at 8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 358.1 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 383.1 miles (I 5 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — San Francisco Maritime National Historical Park, Rosie the Riveter WWII Home Front National Historical Park and Golden Gate National Recreation Area (6 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 9.6 hours each way, a round trip means 19.3 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Bostonia, CA before the return drive.
