How far is Ontario, OR from Parma, ID?
The driving distance from Ontario, OR to Parma, ID is about 18.3 miles (29.5 km), with a travel time of about 00h 21m by car.
- The straight-line flight distance is about 16.7 miles (26.9 km).
- For a round trip, plan for roughly 00h 42m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM MDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 21m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Malheur County, Oregon, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Ontario and Parma.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ontario and Parma.
-
1
Start on South Oregon Street
8 m · 3 sec · South Oregon Street
-
2
Turn right onto East Idaho Avenue
1 km · 1 min · East Idaho Avenue
-
3
Take the ramp right
1467 ft · 36 sec
-
4
Merge slight left onto Old Oregon Trail Highway
3.8 mi · 4 min · Old Oregon Trail Highway
-
5
Take the exit slight right toward US 95: Payette, Parma
1176 ft · 29 sec
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6
Turn right
13.4 mi · 15 min
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7
Arrive at your destination
0 m · 1 sec · East Grove Avenue
Car Route Details
A richer read on the saved driving route between Ontario and Parma.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Longest stretch
Turn right
13.4 mi · 00h 15m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny leaving Ontario and Sunny near Parma.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ontario to Parma?
The road trip is about 18.3 miles (29.5 km) and usually takes 00h 21m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Nyssa is a useful midpoint, sitting about 9.2 miles from Ontario and 9.2 miles from Parma.
How much longer is the road route than the straight-line distance?
The direct path is about 16.7 miles (26.9 km), while the road route adds roughly 1.6 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 7:00 AM to 7:00 PM MDT. If you want a more comfortable same-day return, try to leave by 7:48 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.32 one way or $6.63 round trip. Estimated CO2 is about 5.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Ontario and Sunny near Parma.
Stop Ideas Near Nyssa
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 Nyssa.
Ontario
Vale, Oregon
Nampa, Idaho
Boise, Idaho
Flight Path Map
This map shows the direct air route between Ontario and Parma. Straight-line distance: 16.71 mi (26.89 km).
#1 Ontario
City in Oregon, USA
| Population | 11,140 |
| Coordinates | 44.0265500, -116.9629400 |
| Altitude | 656 |
| Country | United States |
#2 Parma
Human settlement in Canyon County, Idaho, United States of America
| Population | 2,147 |
| Coordinates | 43.7851600, -116.9432100 |
| Altitude | 680 |
| Country | United States |
End: Parma (-116.94321, 43.78516)
Estimated Travel Time
Distance: 30 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 36m |
| 40 mph (64.37 km/h) | 00h 27m |
| 50 mph (80.47 km/h) | 00h 22m |
| 60 mph (96.56 km/h) | 00h 18m |
| 70 mph (112.65 km/h) | 00h 15m |
| 80 mph (129 km/h) | 00h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.10 | $3.32 | $6.63 |
| Mid-grade | $5.34 | $3.47 | $6.94 |
| Premium | $5.65 | $3.67 | $7.34 |
| Diesel | $6.87 | $4.47 | $8.93 |
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 Oregon · Sep 23, 2026