Direct flights from Ontario to Houston
All flights from ONT to IAH non-stop. There are direct flights from Ontario International Airport (ONT), California, USA to George Bush Intcntl Houston (IAH), Texas, USA with United Airlines and Frontier Airlines. 14 weekly departures are currently scheduled on this route. Departure times range from 05:45 to 15:57 depending on the schedule period. The flight distance is 1339 miles (2154 km). Flight time ranges from 3 hours and 10 minutes to 3 hours and 24 minutes.
Ontario
, USA
Flight schedule from Ontario to Houston with United Airlines
This is a weekly direct flight schedule for United Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-07-12
Flight schedule from Ontario to Houston with Frontier Airlines
This is a weekly direct flight schedule for Frontier Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-07-12
Ontario to Houston scheduled departures
Select a date to see every published non-stop departure between ONT and IAH.
ONT - IAH route facts
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Distance1339 miles (2154 km)
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Flight time3 hours and 10 minutes to 3 hours and 24 minutes
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Airlines United Frontier
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Airline alliancesStar Alliance Low-cost carrier
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CabinsEconomy Business First
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Hub airportsUnited Airlines: IAH
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Departure terminalsUnited Airlines: Terminal 2
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Arrival terminalsUnited Airlines: Terminal CFrontier Airlines: Terminal A
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AircraftUnited Airlines: Boeing 737-900 Passenger, Boeing 737-800 Passenger and Airbus A320Frontier Airlines: Airbus A320neo, Airbus A321, Airbus A321neo and Airbus A320
Route FAQ
Nearby airports that offer flights to Houston (IAH)
From (MEX)
73 flights per week
From (AUS)
55 flights per week
From (IND)
25 flights per week
From (XPL)
7 flights per week
From (HEZ)
7 flights per week
Direct flights from Ontario to TX, USA
From Ontario to Dallas
DFW Dallas Fort Worth International
From Ontario to Houston
HOU William P. Hobby Airport
From Ontario to Dallas
DAL Dallas Love Fld
From Ontario to Austin
AUS Austin-Bergstrom International Airport
