Direct (nonstop) flights from Portland to Ontario
1 airline flys nonstop from Portland International (PDX) to Ontario International Airport (ONT). It's 838 miles (1,349 km), about 2h 21m in the air. Operated by Alaska Airlines.
Alaska Airlines
Route data last updated: May 30, 2026
Airlines with non-stop flights
AS
Alaska Airlines
Alternative Routes
Other ways to fly from Portland to Ontario with one stop · direct emits 155 kg CO₂ per passenger
Looking for the return flight?
ONT → PDX: Flights from Ontario to PortlandOther direct flights from Portland
Direct flights from Ontario (ONT)
Frequently Asked Questions
How long is the direct flight from Portland to Ontario?
A nonstop flight from Portland (PDX) to Ontario (ONT) takes approximately 2 hours and 21 minutes. The distance is 838 miles (1,349 km).
Which airlines fly nonstop from Portland to Ontario?
Just Alaska Airlines.
Is there a nonstop flight from Portland to Ontario?
Yes. 1 airline: Alaska Airlines.
How far is Portland from Ontario?
The flight distance from Portland to Ontario 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 Portland to Ontario?
At 2h 21m, 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 Portland to Ontario?
Roughly 155 kg CO2 per passenger one-way. That's about the same as driving 775 km.
Is the return flight from Ontario to Portland 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 Portland to Ontario?
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 Portland International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.