Driving distance from Ontario, OR to Portland, OR is 375 miles (604 km). How far is it from Ontario, OR to Portland, OR? It's a 06 hours 20 minutes drive by car. Flight distance is approximately 298 miles (479 km) and flight time from Ontario, OR to Portland, OR is 35 minutes. Don't forget to check out our "Gas cost calculator" option. It will calculate cost of driving this particular distance. See the map below for the visual display of the upcoming road trip.
To travel the distance from Ontario, OR to Portland, OR, please, click on the map to see the route for the journey. "Gas Cost Calculator" tool is to your right. You can always modify it and make the number more applicable for your journey.
Choose a place to stay while traveling from Ontario, OR to Portland, OR. We also offer Car Rental widget for your particular journey. There are lots of options to choose from. Give it a try.
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