Direct (nonstop) flights from Ontario to Phoenix
2 airlines fly nonstop from Ontario International Airport (ONT) to Phoenix Sky Harbor International (PHX). It's 325 miles (523 km), about 1h 20m in the air. Operated by American Airlines, Southwest Airlines.
American Airlines
Southwest Airlines
Route data last updated: May 24, 2026
Airlines with non-stop flights
AA
American Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Ontario to Phoenix with one stop · direct emits 60 kg CO₂ per passenger
Looking for the return flight?
PHX → ONT: Flights from Phoenix to OntarioOther direct flights from Ontario
Direct flights from Phoenix (PHX)
Frequently Asked Questions
How long is the direct flight from Ontario to Phoenix?
A nonstop flight from Ontario (ONT) to Phoenix (PHX) takes approximately 1 hours and 20 minutes. The distance is 325 miles (523 km).
Which airlines fly nonstop from Ontario to Phoenix?
2 airlines: American Airlines, Southwest Airlines.
Is there a nonstop flight from Ontario to Phoenix?
Yes. 2 airlines: American Airlines, Southwest Airlines.
How far is Ontario from Phoenix?
The flight distance from Ontario to Phoenix is 325 miles (523 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Ontario to Phoenix?
At 1h 20m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Ontario to Phoenix?
Roughly 60 kg CO2 per passenger one-way. That's about the same as driving 300 km.
Is the return flight from Phoenix 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 Phoenix?
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.