🇺🇸 ONT
Ontario
1333 mi
IAH 🇺🇸
Houston

Ontario to Houston Flights

Ontario International Airport George Bush Intercontinental Houston Airport 4 airlines

Get Notified About Route Changes

Track up to 3 airports free. Weekly alerts when airlines add or remove routes.

Sign Up Free

The Ontario to Houston route connects Ontario International Airport (ONT) in US with George Bush Intercontinental Houston Airport (IAH) in US. This medium-haul flight covers approximately 1333 miles (2145 km) with a typical flight time of 2h 46m. This route is served by 4 airlines: UAL, ATN, FFT and others. AirportRoutes has tracked 6 unique flight numbers on this route.

Search tickets for this route

Compare flight prices across hundreds of booking sites

Search ONT → IAH flights

Opens a live price search — just pick your dates

Departure Airport

Ontario International Airport

ICAO Code:
KONT
IATA Code:
ONT
City:
🇺🇸 Ontario
Country:
US
Elevation:
944 ft

Destination Airport

George Bush Intercontinental Houston Airport

ICAO Code:
KIAH
IATA Code:
IAH
City:
🇺🇸 Houston
Country:
US
Elevation:
97 ft

4

Operators

6

Tracked Flights

1333

Miles

2h 46m

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
United UAL UA
Air Transport International, Inc. ATN 8C
Frontier FFT F9
United Parcel Service UPS 5X

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 6 17%
Tuesday 3 9%
Wednesday 6 17%
Thursday 3 9%
Friday 6 17%
Saturday 6 17%
Sunday 5 14%

Pattern Analysis

6 Tracked Flights:
Data Points: 35
API observations used to build this analysis
Weekdays: 24 flights
Weekend: 11 flights
Business Route More active on weekdays

All Flight Routes

4 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
B763 03:50 3:50 AM (Representative)
M T W T F S S
Jun 16, 2026 Active
Frontier
FFT / F9
A321 20:06 8:06 PM (Representative)
M T W T F S S
Jun 16, 2026 Active
United
UAL / UA
B739 05:45 5:45 AM (Representative)
M T W T F S S
Jun 16, 2026 Active
B763 11:15 11:15 AM (Representative)
M T W T F S S
Jun 16, 2026 Active
Total Routes: 4
Active Routes: 4
Unique Airlines: 4
Aircraft Types: 4

Spotted Departure Times

Departure Time Operator ICAO IATA
03:50 3:50 AM Air Transport International, Inc. ATN 8C
05:45 5:45 AM United UAL UA
11:15 11:15 AM United Parcel Service UPS 5X
20:06 8:06 PM Frontier FFT F9

Time Information

Times are shown in the departure airport's local timezone (KONT - America/Los_Angeles).

Total Departure Times: 4
Time Range:
03:50 - 20:06
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.