Distance from Portland, Oregon to Ontario, Oregon


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The distance from Portland, Oregon to Ontario, Oregon is 297.1 miles by the driving route, 297.1 miles by the biking route, and 297.1 miles by the walking route. The straight line distance between Portland and Ontario is 297.1 miles (airplane route). The distances via different routes and the durations needed to travel from Portland to Ontario are summarized in Table 1. The estimated gasoline cost of driving from Portland to Ontario is summarized in Table 2.

Table 1. Travel Distance & Duration from Portland, OR to Ontario, OR

Travel RouteDistance (mi) Distance (km)Travel Time
driving Driving 297.1 mi 478.1 km
biking Bicycling 297.1 mi 478.1 km
walking Walking 297.1 mi 478.1 km
flying Airplane 297.1 mi 478.1 km 35.7 minutes
Note: Distances of driving, bicycling, and walking routes and travel durations are calculated using Google Maps services API. Airplane distance and travel time are calculated using straight line and flying speed of 500 miles per hour [reference].

Table 2. Gasoline Cost of Traveling from Portland to Ontario by Car

Fuel Economy Distance (driving) Fuel Cost
20 mpg297.1 miles$32.68
25 mpg297.1 miles$26.15
30 mpg297.1 miles$21.79
35 mpg297.1 miles$18.68
40 mpg297.1 miles$16.34
50 mpg297.1 miles$13.07
Note: Gasoline price used in the calculation is $2.20 per gallon.

Table 3. Distance from Portland, OR to Nearby Cities

From Portland, OR to Vancouver, WA 7.3 miles
From Portland, OR to Vancouver, WA 7.3 miles
From Portland, OR to Lake Oswego, OR 8.9 miles
From Portland, OR to Lake Oswego, OR 8.9 miles
From Portland, OR to Beaverton, OR 9.1 miles

Table 4. Distance from Portland, OR to Cities Near Ontario, OR

From Portland, OR to Caldwell, ID 322.3 miles
From Portland, OR to Caldwell, ID 322.3 miles
From Portland, OR to Eagle, ID 329.9 miles
From Portland, OR to Eagle, ID 329.9 miles
From Portland, OR to Nampa, ID 328.5 miles

Also see Distance from Portland to other countries; Distance from Portland to other world cities; Distance from Portland to nearby airports.