Frontier Airlines
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United States
George Bush Intercontinental Airport
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United States
Ontario International Airport
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Scan through all non-stop flights from Houston to Ontario. The full flight schedule below gives an overview of all non-stop flights from IAH to ONT, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
In Ontario, the summers are known for being warm, long, and dry, with temperatures typically reaching about 30°C (86°F). The area’s breathtaking scenery complements the sun-filled lifestyle, making it a popular destination for visitors all year round who are looking for relaxation, fun by the water, and the beauty of the outdoors.
Ontario is best explored from mid-spring to summer, specifically between April and September, as most rainfall occurs from October to February.
In total there are 2 airlines operating nonstop flights from Houston IAH to Ontario ONT. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their IAH ONT flight schedule.
Flights from IAH to ONT are operated 9 times a week, with an average of 1 flight per day. Departure times vary between 06:00 - 20:31. The earliest flight departs at 06:00, the last flight departs at 20:31. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Houston to Ontario takes 3 hours and 45 minutes. The flight distance between Houston and Ontario is 1,330 miles (or 2,140 km).
There is 1 airport in Ontario: Ontario International Airport (ONT).
There are 9 flights per week flying from Houston to Ontario (as of April 2026).
3 hours and 45 minutes is the average flight time from Houston to Ontario.
The distance from Houston to Ontario is 1,330 miles (2,140 kilometers).
Frontier Airlines and United Airlines are flying nonstop from Houston to Ontario.
Star Alliance is currently the only alliance flying nonstop from Houston to Ontario.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Houston to Ontario:
The earliest flight departs at 06:00 from Houston and arrives at 07:35 at Ontario.
The latest flight departs at 20:31 from Houston and arrives at 21:55 at Ontario.
1,330 miles (2,140 km) · 3h 45m
14:36
16:17
Frontier Airlines
F9 3131
Frontier Airlines
Airbus A321neo
Y
W
J
F
15:01
16:38
Frontier Airlines
F9 3131
Frontier Airlines
Airbus A321-100/200
Y
W
J
F
15:01
16:38
Frontier Airlines
F9 3131
Frontier Airlines
Airbus A321neo
Y
W
J
F
15:01
16:38
Frontier Airlines
F9 3131
Frontier Airlines
Airbus A321neo
Y
W
J
F
15:11
16:48
Frontier Airlines
F9 3131
Frontier Airlines
Airbus A321-100/200
Y
W
J
F
20:14
21:50
United Airlines
Star Alliance
UA 1563
United Airlines
Boeing 737-900
Y
W
J
F
20:22
21:58
United Airlines
Star Alliance
UA 1563
United Airlines
Boeing 737-900
Y
W
J
F
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