How far is Ontario, CA from Parker Dam, CA?
The driving distance from Ontario, CA to Parker Dam, CA is about 241.7 miles (388.9 km), with a travel time of about 04h 41m by car.
- The straight-line flight distance is about 201.1 miles (323.6 km).
- For a round trip, plan for roughly 09h 23m 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 41m.
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 Ontario and Parker Dam.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ontario and Parker Dam.
-
1
Start on Holt Boulevard
2.7 mi · 5 min · Holt Boulevard
-
2
Take the ramp straight toward I 10 East
1.1 km · 1 min
-
3
Merge slight left onto San Bernardino Freeway
16.6 mi · 19 min · San Bernardino Freeway
-
4
Continue on Pearl Harbor Memorial Highway
40.3 mi · 44 min · Pearl Harbor Memorial Highway
-
5
Keep slight left to continue on Sonny Bono Memorial Freeway
32.5 mi · 35 min · Sonny Bono Memorial Freeway
-
6
Keep slight left to continue on Sonny Bono Memorial Freeway
1.1 mi · 1 min · Sonny Bono Memorial Freeway
-
7
Continue on Pearl Harbor Memorial Highway
45.6 mi · 49 min · Pearl Harbor Memorial Highway
-
8
Take the exit slight right toward Desert Center, Chuckwalla Valley Raceway
1126 ft · 18 sec
-
9
Turn left onto Rice Road
84.1 mi · 1 hr 43 min · Rice Road
-
10
Turn right
2128 ft · 47 sec
-
11
Continue on California Avenue
1.4 km · 2 min · California Avenue
-
12
Turn left onto Rio Vista Highway
4.4 mi · 6 min · Rio Vista Highway
-
13
Continue on Quartzsite–Parker–Topock Highway
6.6 mi · 7 min · Quartzsite–Parker–Topock Highway
-
14
Continue on Riverside Drive
4 mi · 5 min · Riverside Drive
-
15
Turn left onto Parker Dam Road
48 m · 4 sec · Parker Dam Road
-
16
At the end of the road, turn right onto Parker Dam Road
1.5 mi · 3 min · Parker Dam Road
-
17
Turn right onto Arizona Street
158 m · 23 sec · Arizona Street
-
18
Arrive at your destination
0 m · 1 sec · Arizona Street
Car Route Details
A richer read on the saved driving route between Ontario and Parker Dam.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Rice Road
Turn left onto Rice Road
84.1 mi · 01h 43m
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 Ontario and Sunny near Parker Dam.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ontario to Parker Dam?
The road trip is about 241.7 miles (388.9 km) and usually takes 04h 41m 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 120.7 miles from Ontario and 121 miles from Parker Dam.
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 40.6 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 7:36 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $53.41 one way or $106.81 round trip. Estimated CO2 is about 75.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Ontario and Sunny near Parker Dam.
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 Ontario and Parker Dam. Straight-line distance: 201.11 mi (323.65 km).
#1 Ontario
The second most populous city in San Bernardino County, California.
| Population | 183,393 |
| Coordinates | 34.0633400, -117.6508900 |
| Altitude | 306 |
| Country | United States |
#2 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 |
End: Parker Dam (-114.143, 34.28724)
Estimated Travel Time
Distance: 389 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 03m |
| 40 mph (64.37 km/h) | 06h 02m |
| 50 mph (80.47 km/h) | 04h 49m |
| 60 mph (96.56 km/h) | 04h 01m |
| 70 mph (112.65 km/h) | 03h 27m |
| 80 mph (129 km/h) | 03h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $6.26 | $53.41 | $106.81 |
| Mid-grade | $6.50 | $55.44 | $110.87 |
| Premium | $6.69 | $57.06 | $114.11 |
| Diesel | $8.41 | $71.76 | $143.53 |
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