Drive Time
1h 58m
Distance
117 mi
188 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$16
one way
Photo: Stephen Leonardi
The drive from Diamond Bar, CA to Chula Vista, CA covers 117 miles and takes about 1h 58m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Sunset Crossing Road, CA 57 South, Orange Freeway for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $15.89 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
0 planned breaks
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
58.5 miles from Diamond Bar, CA
A natural place for your longest stop of the day , about 59m into the drive .
Expect a 1h 58m drive with frequent turns across 117 miles of local and secondary roads.
| Road | Distance | Duration |
|---|---|---|
| Sunset Crossing Road | Unavailable | Refreshing |
| CA 57 South | Unavailable | Refreshing |
| Orange Freeway | Unavailable | Refreshing |
| Pomona Freeway | Unavailable | Refreshing |
| I 5 South | Unavailable | Refreshing |
| Santa Ana Freeway | Unavailable | Refreshing |
| Newport Avenue | Unavailable | Refreshing |
| Walnut Avenue | Unavailable | Refreshing |
Per-road distance and duration are being refreshed from OSRM for this route.
Step-by-step road directions between Diamond Bar, CA and Chula Vista, CA.
Start on the route
At the end of the road, turn right onto Sunset Crossing Road
Take the ramp right toward CA 57 South, CA 60 West: Santa Ana, Los Angeles
Merge slight left onto Orange Freeway
Merge slight left onto Pomona Freeway
Keep slight right to continue on Orange Freeway
Keep slight left to continue on Orange Freeway
Keep slight right to continue on Orange Freeway
Keep slight right to continue on Orange Freeway
Keep slight left to continue on I 5 South: Santa Ana
Keep slight left
Keep slight left to continue on I 5 South
Merge slight left onto Santa Ana Freeway
Keep slight right to continue on Santa Ana Freeway
Keep slight right to continue on Santa Ana Freeway
Take the exit slight right toward Newport Avenue
Turn right onto Newport Avenue
Turn left onto Walnut Avenue
Turn left onto Jamboree Road
Take the exit slight right toward I 5 South
Merge slight left onto Santa Ana Freeway
Keep slight left to continue on Santa Ana Freeway
Merge slight right onto San Diego Freeway
Take the exit slight left
Continue on Jacob Dekema Freeway
Take the exit slight right toward CA 54 East, CA 54 West
Keep slight right to continue on CA 54 West
Merge slight left onto South Bay Freeway
Take the exit slight right toward Highland Avenue, 4th Avenue
Turn left onto Highland Avenue
Continue on 4th Avenue
Turn right onto F Street
Continue on F Street
Arrive at your destination
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 80 miles or 1h 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 58.5 miles or 59m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 37m
Traffic, exits, and arrival timing usually matter more near Chula Vista, CA than in the middle of the route.
Open the route before leaving Diamond Bar, 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.
Day 1
Settle into the route from Diamond Bar, CA
This is one driving day of about 117 miles and 1h 58m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 58.5 mi from Diamond Bar, CA · 59m into the drive
Mid-route town
Meal stop
59 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 80 miles helps settle the day before fatigue starts building.
The midpoint is around 58.5 miles from Diamond Bar, CA, which is a good place for a longer meal and fuel stop.
The final approach into Chula Vista, 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 Chula Vista, CA.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$15.89 one way
$31.78 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $3.85 | $17.73 | $35.47 |
| premium | $4.15 | $19.12 | $38.23 |
| diesel | $3.75 | $17.27 | $34.55 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$16
Meals
$25–$50
Total
$41–$66
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 40.9 kg one way.
Driving Electric?
About $12 in charging · 0 stops · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 35.1 | 0 | $12.29 | $5.62 |
| Efficient EV | 29.3 | 0 | $10.24 | $4.68 |
| EV Truck/SUV | 46.8 | 0 | $16.38 | $7.49 |
Gas CO2
41 kg
EV CO2
14 kg (66% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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. If you're planning ahead, check the forecast closer to your travel date.
Origin
Morning in Diamond Bar on Saturday
Local time
8:20 AM
PDT
Current temp
53°F
Forecast unavailable right now
Destination
Morning in Chula Vista on Saturday
Local time
8:20 AM
PDT
Current temp
67°F
Forecast unavailable right now
Along the Route
74°F
Irvine, CA
59 mi in
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.
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
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