Direct (nonstop) flights from Houston to Ontario
1 airline flys nonstop from William P. Hobby Airport (HOU) to Ontario International Airport (ONT). It's 1,344 miles (2,163 km), about 3h 20m in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Houston to Ontario with one stop · direct emits 227 kg CO₂ per passenger
Looking for the return flight?
ONT → HOU: Flights from Ontario to HoustonOther direct flights from Houston
Direct flights from Ontario (ONT)
Frequently Asked Questions
How long is the direct flight from Houston to Ontario?
A nonstop flight from Houston (HOU) to Ontario (ONT) takes approximately 3 hours and 20 minutes. The distance is 1,344 miles (2,163 km).
Which airlines fly nonstop from Houston to Ontario?
Just Southwest Airlines.
Is there a nonstop flight from Houston to Ontario?
Yes. 1 airline: Southwest Airlines.
How far is Houston from Ontario?
The flight distance from Houston to Ontario is 1,344 miles (2,163 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 Houston to Ontario?
At 3h 20m, 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 Houston to Ontario?
Roughly 227 kg CO2 per passenger one-way. That's about the same as driving 1,135 km.
Is the return flight from Ontario to Houston 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 Houston 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 William P. Hobby Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.