Direct (nonstop) flights from Austin to Ontario
1 airline flys nonstop from Austin-Bergstrom International Airport (AUS) to Ontario International Airport (ONT). It's 1,196 miles (1,925 km), about 3h in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Austin to Ontario with one stop · direct emits 202 kg CO₂ per passenger
Looking for the return flight?
ONT → AUS: Flights from Ontario to AustinOther direct flights from Austin
Direct flights from Ontario (ONT)
Frequently Asked Questions
How long is the direct flight from Austin to Ontario?
A nonstop flight from Austin (AUS) to Ontario (ONT) takes approximately 3 hours. The distance is 1,196 miles (1,925 km).
Which airlines fly nonstop from Austin to Ontario?
Just Southwest Airlines.
Is there a nonstop flight from Austin to Ontario?
Yes. 1 airline: Southwest Airlines.
How far is Austin from Ontario?
The flight distance from Austin to Ontario is 1,196 miles (1,925 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Austin to Ontario?
At 3h, 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 Austin to Ontario?
Roughly 202 kg CO2 per passenger one-way. That's about the same as driving 1,010 km.
Is the return flight from Ontario to Austin 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 Austin 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 Austin-Bergstrom International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.