Direct (nonstop) flights from Ontario to Portland
1 airline flys nonstop from Ontario International Airport (ONT) to Portland International (PDX). It's 838 miles (1,349 km), about 2h 25m in the air. Operated by Alaska Airlines.
Alaska Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
AS
Alaska Airlines
Alternative Routes
Other ways to fly from Ontario to Portland with one stop · direct emits 155 kg CO₂ per passenger
Looking for the return flight?
PDX → ONT: Flights from Portland to OntarioOther direct flights from Ontario
Direct flights from Portland (PDX)
Frequently Asked Questions
How long is the direct flight from Ontario to Portland?
A nonstop flight from Ontario (ONT) to Portland (PDX) takes approximately 2 hours and 25 minutes. The distance is 838 miles (1,349 km).
Which airlines fly nonstop from Ontario to Portland?
Just Alaska Airlines.
Is there a nonstop flight from Ontario to Portland?
Yes. 1 airline: Alaska Airlines.
How far is Ontario from Portland?
The flight distance from Ontario to Portland is 838 miles (1,349 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Madrid.
What type of aircraft flies from Ontario to Portland?
At 2h 25m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Ontario to Portland?
Roughly 155 kg CO2 per passenger one-way. That's about the same as driving 775 km.
Is the return flight from Portland to Ontario also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Ontario to Portland?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Ontario International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.