Direct (nonstop) flights from Ontario to Austin
1 airline flys nonstop from Ontario International Airport (ONT) to Austin-Bergstrom International Airport (AUS). It's 1,196 miles (1,925 km), about 2h 40m 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 Ontario to Austin with one stop · direct emits 202 kg CO₂ per passenger
Looking for the return flight?
AUS → ONT: Flights from Austin to OntarioOther direct flights from Ontario
Direct flights from Austin (AUS)
Frequently Asked Questions
How long is the direct flight from Ontario to Austin?
A nonstop flight from Ontario (ONT) to Austin (AUS) takes approximately 2 hours and 40 minutes. The distance is 1,196 miles (1,925 km).
Which airlines fly nonstop from Ontario to Austin?
Just Southwest Airlines.
Is there a nonstop flight from Ontario to Austin?
Yes. 1 airline: Southwest Airlines.
How far is Ontario from Austin?
The flight distance from Ontario to Austin 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 Ontario to Austin?
At 2h 40m, 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 Austin?
Roughly 202 kg CO2 per passenger one-way. That's about the same as driving 1,010 km.
Is the return flight from Austin 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 Austin?
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.