Direct (non-stop) flights from Ontario (ONT) to Houston (IAH)
Find comprehensive flight information, schedules, and booking details for direct flights from Ontario (ONT) to Houston (IAH). This popular route is operated by 2 airlines, offering multiple daily departures.• Flight Duration: 2h 57m - 3h 25m (average flight time)• Daily Flights: 1-3 flights (scheduled departures per day)
Ontario (ONT)
Houston (IAH)
FLIGHT TIME
2h 57m - 3h 25m
3h 7m - 3h 17m
06:05
15:21
2 (Show)
7
Flight Schedule
December 2025
Airlines with direct flights from Ontario (ONT) to Houston (IAH)
Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 2h 57m - 3h 25m.
Best departure times: Peak departure times are 6:00, 15:00, offering more flight options and potentially better connections.
Ontario (ONT) - Houston (IAH) flight price statistics
$321
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$114
Jan$114
Feb$100
Mar$358
Apr$605
May$393
Jun$368
Jul$308
Aug$308
Sep$433
Oct$308
Nov$440
DecRelated Information
Airports: ONT • IAH Airport
Airlines operating this route: United Airlines (UA), Frontier Airlines
Frequently Asked Questions
How many flights operate from ONT to IAH?
There are 2 direct flights operating from ONT to IAH. Approximately 1-3 flights daily.
Which airlines operate flights from ONT to IAH?
2 airlines operate on this route: United Airlines, Frontier Airlines.
How long is the flight from ONT to IAH?
The flight duration from ONT to IAH is approximately 2h 57m - 3h 25m.
What is the flight time range for this route?
Flight times on this route range from 3h 7m - 3h 17m.
What are the earliest and latest flight departure times?
The earliest flight departs at 06:05 and the latest flight departs at 15:21.
How many flights operate per week on this route?
Approximately 7 flights operate per week from ONT to IAH.
What types of aircraft operate on this route?
This route is served by Airbus A319, Airbus A321neo.
What is the average flight price from ONT to IAH?
The average flight price for a round-trip ticket from ONT to IAH is approximately $321 USD. Prices can vary based on booking time, season, and airline.
How many airlines offer flights from ONT to IAH?
2 airlines offer direct flights from ONT to IAH, providing travelers with multiple options for scheduling and pricing.
How long does it take to fly from ONT to IAH?
The flight time from ONT to IAH is approximately 2h 57m - 3h 25m. Actual flight duration may vary based on weather conditions, aircraft type, and routing.