How far is Parker Dam, CA from Ontario, CA?
The driving distance from Parker Dam, CA to Ontario, CA is about 239 miles (384.6 km), with a travel time of about 04h 03m by car.
- The straight-line flight distance is about 201.1 miles (323.6 km).
- For a round trip, plan for roughly 08h 06m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM PDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 04h 03m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
A city in Riverside County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Parker Dam and Ontario.
Turn-by-Turn Driving Directions
Step-by-step road directions between Parker Dam and Ontario.
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1
Start on Arizona Street
158 m · 26 sec · Arizona Street
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2
At the end of the road, turn left onto Parker Dam Road
1.6 mi · 3 min · Parker Dam Road
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3
Merge slight left onto Riverside Drive
3.9 mi · 4 min · Riverside Drive
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4
Turn straight onto Quartzsite–Parker–Topock Highway
6.6 mi · 8 min · Quartzsite–Parker–Topock Highway
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5
Continue on Rio Vista Highway
4.4 mi · 6 min · Rio Vista Highway
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6
Turn right onto California Avenue
1.4 km · 2 min · California Avenue
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7
Continue straight
2128 ft · 53 sec
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8
At the end of the road, turn left onto Aqueduct Road
16.5 mi · 24 min · Aqueduct Road
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9
Continue on Aqueduct Road
67.6 mi · 1 hr 18 min · Aqueduct Road
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10
Take the ramp right
1181 ft · 15 sec
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11
Merge slight left onto Pearl Harbor Memorial Highway
45.6 mi · 49 min · Pearl Harbor Memorial Highway
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12
Continue on Sonny Bono Memorial Freeway
33.7 mi · 36 min · Sonny Bono Memorial Freeway
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13
Continue on Pearl Harbor Memorial Highway
39.9 mi · 44 min · Pearl Harbor Memorial Highway
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14
Continue on San Bernardino Freeway
13.9 mi · 16 min · San Bernardino Freeway
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15
Keep slight left to continue on I-10 Metro ExpressLanes
1.7 mi · 2 min · I-10 Metro ExpressLanes
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16
Take the exit slight right
110 m · 9 sec
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17
Merge slight right onto San Bernardino Freeway
1.2 mi · 1 min · San Bernardino Freeway
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18
Take the exit slight right toward Holt Boulevard
1.1 km · 1 min
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19
Keep slight left
645 ft · 18 sec
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20
Continue on Holt Boulevard
2.7 mi · 5 min · Holt Boulevard
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21
Arrive at your destination
0 m · 1 sec · Holt Boulevard
Car Route Details
A richer read on the saved driving route between Parker Dam and Ontario.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Aqueduct Road
Continue on Aqueduct Road
67.6 mi · 01h 18m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Parker Dam and Sunny near Ontario.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Parker Dam to Ontario?
The road trip is about 239 miles (384.6 km) and usually takes 04h 03m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Coachella is a useful midpoint, sitting about 120.6 miles from Parker Dam and 118.4 miles from Ontario.
How much longer is the road route than the straight-line distance?
The direct path is about 201.1 miles (323.6 km), while the road route adds roughly 37.9 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM PDT. If you want a more comfortable same-day return, try to leave by 8:54 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $52.78 one way or $105.56 round trip. Estimated CO2 is about 74.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Parker Dam and Sunny near Ontario.
Stop Ideas Near Coachella
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Coachella.
Indio, California
La Quinta, CA
Palm Desert, CA
Palm Springs (Buses), California
Flight Path Map
This map shows the direct air route between Parker Dam and Ontario. Straight-line distance: 201.11 mi (323.65 km).
#1 Parker Dam
Located on the Colorado River along the border between California's San Bernardino County and Arizona, this concrete arch-gravity structure impounds the waters creating Lake Havasu.
| Population | 0 |
| Coordinates | 34.2872400, -114.1430000 |
| Altitude | 121 |
| Country | United States |
#2 Ontario
The second most populous city in San Bernardino County, California.
| Population | 183,393 |
| Coordinates | 34.0633400, -117.6508900 |
| Altitude | 306 |
| Country | United States |
End: Holt Boulevard (-117.65089, 34.063361)
Estimated Travel Time
Distance: 385 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 57m |
| 40 mph (64.37 km/h) | 05h 58m |
| 50 mph (80.47 km/h) | 04h 46m |
| 60 mph (96.56 km/h) | 03h 58m |
| 70 mph (112.65 km/h) | 03h 24m |
| 80 mph (129 km/h) | 02h 58m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $6.26 | $52.78 | $105.56 |
| Mid-grade | $6.50 | $54.79 | $109.57 |
| Premium | $6.69 | $56.39 | $112.78 |
| Diesel | $8.41 | $70.92 | $141.84 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in California · Oct 15, 2026