Origin
Parker Dam, CA
Late night in Parker Dam on Wednesday
Local time
3:27 AM
PDT
Current temp
94°F
Unavailable
Live forecast
Trip from Parker Dam, CA to Ontario, CA
Data updated 0 seconds ago
Drive Time
4h 41m
Distance
241.6 mi
389 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$56
one way
EV Charging
Loading...
station data
Best Time to Leave
4 AM
4h 28m
★
6 AM
4h 42m
8 AM
5h 8m
10 AM
4h 51m
12 PM
4h 48m
3 PM
4h 52m
5 PM
5h 7m
8 PM
4h 34m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Ontario, CA
Wikimedia Commons
Trip Overview
The drive from Parker Dam, CA to Ontario, CA covers 241.6 miles and takes about 4h 41m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Pearl Harbor Memorial Highway, Aqueduct Road, Sonny Bono Memorial Freeway for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 85.5 miles on Pearl Harbor Memorial Highway. At current regular gas prices, budget about $55.53 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
120.8 miles from Parker Dam, CA
A natural place for your longest stop of the day , about 2h 26m into the drive .
Loading map...
Drive Character
Expect a 4h 41m drive with frequent turns across 241.6 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 21 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Pearl Harbor Memorial Highway is the longest continuous segment at about 85.5 miles.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.1 miles in near Parker Dam Road.
Route Complexity
7/10
Demanding - plan breaks and stay ahead of the key maneuvers
This is a demanding drive. With 11 significant decision points across 241.6 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 0.1 miles (Parker Dam Road): Navigation decision point; at 16.6 miles (AZ 95 Truck / California Avenue): Navigation decision point; at 17.9 miles (CA 62 / Aqueduct Road): Navigation decision point.
Critical Maneuvers
5 of 11 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
4
0.1 mi into trip
|
~0m in
|
Parker Dam Road
At end of road, turn left onto Parker Dam Road
Navigation decision point
4
16.6 mi into trip
|
~21m in
|
AZ 95 Truck / California Avenue
Turn right onto AZ 95 Truck / California Avenue
Navigation decision point
4
17.9 mi into trip
|
~23m in
|
CA 62 / Aqueduct Road
At end of road, turn left onto CA 62 / Aqueduct Road
Navigation decision point
5
236.9 mi into trip
|
~4h 33m in
Take the exit
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
6
238.1 mi into trip
|
~4h 34m in
Take the exit toward Holt Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Toward Holt Boulevard
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Pearl Harbor Memorial Highway | 85.5 mi | 1h 32m |
| Aqueduct Road | 84.1 mi | 1h 42m |
| Sonny Bono Memorial Freeway | 33.7 mi | 36m |
| San Bernardino Freeway | 15 mi | 17m |
| Quartzsite–Parker–Topock Highway | 6.6 mi | 7m |
| Rio Vista Highway | 4.4 mi | 5m |
| Riverside Drive | 3.9 mi | 4m |
| Holt Boulevard | 2.7 mi | 4m |
Longest stretch:
Pearl Harbor Memorial Highway
— 85.5 mi, about 1h 32m
Turn-by-Turn Driving Directions
Step-by-step road directions between Parker Dam, CA and Ontario, CA.
1
Start on Arizona Street
517 ft
·
25 sec
·
Arizona Street
2
At end of road, turn left onto Parker Dam Road
1.6 mi
·
2 min
·
Parker Dam Road
3
Merge onto AZ 95
3.9 mi
·
4 min
·
Riverside Drive
4
Turn straight onto AZ 95
6.6 mi
·
7 min
·
Quartzsite–Parker–Topock Highway
5
Continue on AZ 95
4.4 mi
·
5 min
·
Rio Vista Highway
6
Turn right onto AZ 95 Truck
0.9 mi
·
1 min
·
California Avenue
7
Continue on CA 62
0.4 mi
·
53 sec
·
CA 62
8
At end of road, turn left onto CA 62
16 mi
·
24 min
·
Aqueduct Road
9
Continue on CA 62
68 mi
·
1 hr 18 min
·
Aqueduct Road
10
Take the ramp
0.2 mi
·
14 sec
11
Merge onto I 10
46 mi
·
48 min
·
Pearl Harbor Memorial Highway
12
Continue on I 10
34 mi
·
36 min
·
Sonny Bono Memorial Freeway
Use the straight / slight right lanes.
13
Continue on I 10
40 mi
·
43 min
·
Pearl Harbor Memorial Highway
Use the straight / slight right lanes.
14
Continue on I 10
14 mi
·
15 min
·
San Bernardino Freeway
Use the straight / slight right lanes.
15
Keep slight left at fork onto I 10 EXPR
1.7 mi
·
1 min
·
I-10 Metro ExpressLanes
16
Take the exit
360 ft
·
8 sec
Use the straight / slight right lanes.
17
Merge onto I 10
1.2 mi
·
1 min
·
San Bernardino Freeway
18
Take the exit
0.7 mi
·
1 min
Toward Holt Boulevard
Use the slight right lane.
19
Keep slight left at fork
0.1 mi
·
17 sec
20
Continue on Holt Boulevard
2.7 mi
·
4 min
·
Holt Boulevard
Use the straight lane.
21
Arrive at destination
Holt Boulevard
Trip Plan
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 120.8 miles from Parker Dam, CA, or about 2h 26m into the drive.
The longest continuous stretch on this route runs about 85.5 miles.
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 41m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 120.8 miles or 2h 26m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 50m
Traffic, exits, and arrival timing usually matter more near Ontario, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Parker Dam, 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 Parker Dam, CA
This is one driving day of about 241.6 miles and 4h 41m.
Your first comfortable stop window is around 80 miles from Parker Dam, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Pearl Harbor Memorial Highway for about 85.5 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 120.8 mi from Parker Dam, CA · 2h 26m into the drive
Mid-route town
Meal stop
121 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.
Pacing Suggestions
Fuel and coffee
A short stop after about 80 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 120.8 miles from Parker Dam, CA, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Pearl Harbor Memorial Highway if your tank is already low. That segment runs about 85.5 miles.
Arriving in Ontario, CA
The final approach into Ontario, 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 Ontario, CA.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$55.53 one way
$111.06 round trip
$5.84/gal
25.4 MPG avg
85 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $6.02 | $57.22 | $114.45 |
| premium | $6.18 | $58.75 | $117.51 |
| diesel | $5.61 | $53.34 | $106.68 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$56
Meals
$25–$50
Total
$81–$106
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 84.5 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $25 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 72.5 | 0 | $25.37 | $11.60 |
| Efficient EV | 60.4 | 0 | $21.14 | $9.66 |
| EV Truck/SUV | 96.6 | 1 | $33.82 | $15.46 |
Gas CO2
85 kg
EV CO2
28 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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.
Destination
Ontario, CA
Late night in Ontario on Wednesday
Local time
3:27 AM
PDT
Current temp
52°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.
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
42 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 41m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Parker Dam, CA to Ontario, CA covers 241.6 miles and takes about 4h 41m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Pearl Harbor Memorial Highway, Aqueduct Road, Sonny Bono Memorial Freeway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 120.8 miles from Parker Dam, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $55.53 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 11 significant decision points across 241.6 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.
The main spots that need attention: at 0.1 miles (Parker Dam Road): Navigation decision point; at 16.6 miles (AZ 95 Truck / California Avenue): Navigation decision point; at 17.9 miles (CA 62 / Aqueduct Road): Navigation decision point.
The route from Parker Dam, CA to Ontario, CA does not surface many named destination signs beyond the main corridor.
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