United Airlines flights from Houston George Bush (IAH) to Ontario, Los Angeles (ONT).

FLIGHT SCHEDULE
Direct Flights:
Tue 16:20 Houston George Bush (IAH) C 18:07 Ontario, Los Angeles (ONT) 2 United Airlines UA 564 Non-stop Boeing 737-900 (739) 3:47 Effective 2026-03-10 through 2026-03-24
Daily 20:00 Houston George Bush (IAH) C 21:21 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Airbus A320 (320) 3:21 Effective from 2026-05-21
Daily 20:10 Houston George Bush (IAH) C 21:52 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Boeing 737-900 (739) 3:42 Valid until 2026-01-04
Mon 20:10 Houston George Bush (IAH) C 21:52 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Airbus A319 (319) 3:42 Operates only on 2026-01-05
Wed-Sun 20:12 Houston George Bush (IAH) C 21:59 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Boeing 737-900 (739) 3:47 Effective 2026-02-12 through 2026-03-04
Mon,Tue 20:12 Houston George Bush (IAH) C 22:00 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Airbus A319 (319) 3:48 Effective 2026-02-16 through 2026-03-03
Daily 20:14 Houston George Bush (IAH) C 21:50 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Boeing 737-900 (739) 3:36 Effective 2026-04-30 through 2026-05-20
Tue 20:15 Houston George Bush (IAH) C 21:59 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Airbus A319 (319) 3:44 Effective 2026-01-06 through 2026-01-20
Mon,Wed-Sun 20:15 Houston George Bush (IAH) C 21:58 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Boeing 737-900 (739) 3:43 Effective 2026-01-07 through 2026-01-26
Daily 20:15 Houston George Bush (IAH) C 21:58 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Boeing 737-900 (739) 3:43 Effective 2026-01-27 through 2026-02-02
Tue,Wed 20:15 Houston George Bush (IAH) C 21:59 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Airbus A319 (319) 3:44 Effective 2026-02-03 through 2026-02-10
Mon,Wed-Sun 20:15 Houston George Bush (IAH) C 21:58 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Boeing 737-900 (739) 3:43 Effective 2026-02-05 through 2026-02-11
Daily 20:35 Houston George Bush (IAH) C 22:11 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Boeing 737-900 (739) 3:36 Effective 2026-03-29 through 2026-04-29
Mon,Wed-Sun 20:49 Houston George Bush (IAH) C 22:36 Ontario, Los Angeles (ONT) 2 United Airlines UA 1563 Non-stop Boeing 737-900 (739) 3:47 Effective 2026-03-05 through 2026-03-28
Non-Direct Flights:
Tue 05:25 Houston George Bush (IAH) C 12:17 Ontario, Los Angeles (ONT) 2 United Airlines UA 487 1-stop Boeing 737-900 (739) 8:52 Operates only on 2026-01-06
Wed 05:25 Houston George Bush (IAH) C 11:18 Ontario, Los Angeles (ONT) 2 United Airlines UA 487 1-stop Boeing 737 MAX 9 (7M9) 7:53 Effective 2026-01-07 through 2026-01-21
Mon,Tue,Fri 05:25 Houston George Bush (IAH) C 11:18 Ontario, Los Angeles (ONT) 2 United Airlines UA 487 1-stop Boeing 737 MAX 9 (7M9) 7:53 Effective 2026-01-09 through 2026-01-16
Sat 05:25 Houston George Bush (IAH) C 12:17 Ontario, Los Angeles (ONT) 2 United Airlines UA 487 1-stop Boeing 737 MAX 9 (7M9) 8:52 Effective 2026-01-10 through 2026-02-07
Sun 05:25 Houston George Bush (IAH) C 11:18 Ontario, Los Angeles (ONT) 2 United Airlines UA 487 1-stop Boeing 737-900 (739) 7:53 Effective 2026-01-11 through 2026-02-08
Mon 05:25 Houston George Bush (IAH) C 11:18 Ontario, Los Angeles (ONT) 2 United Airlines UA 487 1-stop Boeing 737-900 (739) 7:53 Operates only on 2026-01-19
Mon,Fri 05:25 Houston George Bush (IAH) C 11:18 Ontario, Los Angeles (ONT) 2 United Airlines UA 487 1-stop Boeing 737 MAX 9 (7M9) 7:53 Effective 2026-01-23 through 2026-02-09

A domestic route departing from the Houston George Bush airport (IAH) and arriving at Ontario, Los Angeles airport (ONT).
The flight distance is 1331 miles, or 2142 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:21 and 3:48.

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FLIGHT SCHEDULE

Direct Flights:

United Airlines UA564

16:20

Houston George Bush (IAH) C

18:07

Ontario, Los Angeles (ONT) 2

Effective 2026-03-10 through 2026-03-24

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:47, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1563

20:00

Houston George Bush (IAH) C

21:21

Ontario, Los Angeles (ONT) 2

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:21, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA1563

20:10

Houston George Bush (IAH) C

21:52

Ontario, Los Angeles (ONT) 2

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:42, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1563

20:10

Houston George Bush (IAH) C

21:52

Ontario, Los Angeles (ONT) 2

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:42, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1563

20:12

Houston George Bush (IAH) C

21:59

Ontario, Los Angeles (ONT) 2

Effective 2026-02-12 through 2026-03-04

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 3:47, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1563

20:12

Houston George Bush (IAH) C

22:00

Ontario, Los Angeles (ONT) 2

Effective 2026-02-16 through 2026-03-03

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:48, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1563

20:14

Houston George Bush (IAH) C

21:50

Ontario, Los Angeles (ONT) 2

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:36, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1563

20:15

Houston George Bush (IAH) C

21:59

Ontario, Los Angeles (ONT) 2

Effective 2026-01-06 through 2026-01-20

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:44, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1563

20:15

Houston George Bush (IAH) C

21:58

Ontario, Los Angeles (ONT) 2

Effective 2026-01-07 through 2026-01-26

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 3:43, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1563

20:15

Houston George Bush (IAH) C

21:58

Ontario, Los Angeles (ONT) 2

Effective 2026-01-27 through 2026-02-02

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:43, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1563

20:15

Houston George Bush (IAH) C

21:59

Ontario, Los Angeles (ONT) 2

Effective 2026-02-03 through 2026-02-10

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:44, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1563

20:15

Houston George Bush (IAH) C

21:58

Ontario, Los Angeles (ONT) 2

Effective 2026-02-05 through 2026-02-11

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 3:43, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1563

20:35

Houston George Bush (IAH) C

22:11

Ontario, Los Angeles (ONT) 2

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:36, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1563

20:49

Houston George Bush (IAH) C

22:36

Ontario, Los Angeles (ONT) 2

Effective 2026-03-05 through 2026-03-28

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 3:47, non-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA487

05:25

Houston George Bush (IAH) C

12:17

Ontario, Los Angeles (ONT) 2

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:52, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA487

05:25

Houston George Bush (IAH) C

11:18

Ontario, Los Angeles (ONT) 2

Effective 2026-01-07 through 2026-01-21

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 7:53, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA487

05:25

Houston George Bush (IAH) C

11:18

Ontario, Los Angeles (ONT) 2

Effective 2026-01-09 through 2026-01-16

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 7:53, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA487

05:25

Houston George Bush (IAH) C

12:17

Ontario, Los Angeles (ONT) 2

Effective 2026-01-10 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 8:52, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA487

05:25

Houston George Bush (IAH) C

11:18

Ontario, Los Angeles (ONT) 2

Effective 2026-01-11 through 2026-02-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 7:53, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA487

05:25

Houston George Bush (IAH) C

11:18

Ontario, Los Angeles (ONT) 2

Operates only on 2026-01-19

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 7:53, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA487

05:25

Houston George Bush (IAH) C

11:18

Ontario, Los Angeles (ONT) 2

Effective 2026-01-23 through 2026-02-09

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 7:53, 1-stop
Boeing 737 MAX 9 (7M9)

A domestic route departing from the Houston George Bush airport (IAH) and arriving at Ontario, Los Angeles airport (ONT).
The flight distance is 1331 miles, or 2142 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:21 and 3:48.

All IAH-ONT flights

All United Airlines flights

Return (ONT-IAH) flights

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