Airlines with flights from Houston to Ontario

There are four airlines with scheduled flights between IAH and ONT. Both Frontier and United operates non-stop flights from Houston Airport to Ontario International Airport and the flight time is 3 hours and 32 minutes.

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Direct

$Frontier Airlines from {( $airportFrom->city_name }} to Ontario$

Non-stop

3h 32min

Direct

$United Airlines from {( $airportFrom->city_name }} to Ontario$

Non-stop

3h 24min

Via Phoenix

4h 29min

Via Dallas

5h 5min

Via Salt Lake City

5h 35min

Via Denver

5h 35min

Via Las Vegas

5h 35min

Via Denver

5h 56min

Via San Francisco

6h 32min

Starts 11/08

Via Austin

8h 11min

Schedules

Non-stop with Frontier Airlines

Total flight time: 3 hours and 32 minutes
Low-cost airline

8 flights per week
Airbus A320neo

IAH

Direct

ONT

Flight

Mon

Jun 15

Tue

Jun 16

Wed

Jun 17

Thu

Jun 18

Fri

Jun 19

Sat

Jun 20

Sun

Jun 21

F93131

16:21

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The timetable & schedule information was updated at 2026-04-21

Non-stop with United Airlines

Total flight time: 3 hours and 24 minutes
Houston is a United Airlines hub.

7 flights per week
Boeing 737-900 Passenger

Boeing 737-800 Passenger
Business and first class available

IAH

Direct

ONT

Flight

Mon

Jun 15

Tue

Jun 16

Wed

Jun 17

Thu

Jun 18

Fri

Jun 19

Sat

Jun 20

Sun

Jun 21

UA1563

20:31

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The timetable & schedule information was updated at 2026-04-21

Via Phoenix with American Airlines

Total flight time: 4h 29m - 6h 27m.
One World Alliance

95 flights per week

IAH

Via PHX

ONT

Flight

Mon

Jun 15

Tue

Jun 16

Wed

Jun 17

Thu

Jun 18

Fri

Jun 19

Sat

Jun 20

Sun

Jun 21

AA1937
AA2244

08:31

AA2710
AA864

14:17