Cheap Flight Tickets from Ontario (ONT) to Houston (IAH), Starting at $139

Good to Know: Cheapest and Fastest ONT - IAH Flights

Useful information for finding best airline tickets from Ontario International to George Bush Intercontinental Houston on your next trip.

Cheapest Round Trip Flight

$589

DL Delta Airlines • 1 stop • 10h 23m

Nov 05 – Nov 09

The cheapest round trip flight from Ontario to Houston (ONT-IAH-ONT) is currently $589

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Cheapest One way Flight

$139

UA United Airlines • 1 stop • 31m

Nov 03

The cheapest one way flight from Ontario to Houston (ONT-IAH) is currently $139

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Cheapest Direct Flight

$532

UA United Airlines • nonstop • 5h 23m

Nov 24

The cheapest nonstop flight from Ontario to Houston (ONT-IAH) is currently $532

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Fastest Flight

31m

The fastest nonstop flight from Ontario to Houston (ONT-IAH) takes 31m

Top Airlines Flying from Ontario to Houston

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Ontario (ONT) to Houston (IAH)

Compare and book low fare round-trip air tickets from Ontario to Houston. Ideal for travelers with confirmed return itineraries.

Nov 05 - Nov 09, Economy
DL
Ontario → Houston
10h 23m
1:35 PM - 9:58 PM • 1 stop
DL
Ontario → Houston
5h 42m
7:00 AM - 8:42 AM • nonstop
$589
Delta Airlines
Nov 05 - Nov 09, Economy
DL
Ontario → Houston
15h 39m
12:16 PM - 11:55 PM • 1 stop
DL
Ontario → Houston
5h 42m
7:00 AM - 8:42 AM • nonstop
$589
Delta Airlines
Nov 05 - Nov 09, Economy
DL
Ontario → Houston
8h 49m
6:00 AM - 1:29 PM • 1 stop
DL
Ontario → Houston
5h 42m
7:00 AM - 8:42 AM • nonstop
$589
Delta Airlines
Nov 05 - Nov 09, Economy
DL
Ontario → Houston
10h 23m
1:35 PM - 9:58 PM • 1 stop
DL
Ontario → Houston
10h 6m
7:38 PM - 11:44 PM • 1 stop
$592
Delta Airlines
Nov 05 - Nov 09, Economy
DL
Ontario → Houston
8h 49m
6:00 AM - 1:29 PM • 1 stop
DL
Ontario → Houston
10h 6m
7:38 PM - 11:44 PM • 1 stop
$592
Delta Airlines
Nov 05 - Nov 09, Economy
DL
Ontario → Houston
15h 39m
12:16 PM - 11:55 PM • 1 stop
DL
Ontario → Houston
10h 6m
7:38 PM - 11:44 PM • 1 stop
$592
Delta Airlines

Fly from Ontario to Houston with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Ontario to Houston? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Ontario to Houston Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to IAH?
The most popular airline flying from Ontario to Houston are
Can I fly from ONT to IAH non-stop?
Yes, you can fly ONT to IAH non-stop on
Which airlines fly nonstop between Ontario and Houston?
The non-stop flights between Ontario and Houston are .
What’s the earliest departure time from ONT to IAH Airport?
The earliest flight leaves ONT at 12:50 am and lands in IAH - George Bush Intercontinental Houston
What are the airports in Houston?
IAH
Can I make changes to my Ontario to Houston flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to IAH?
Read the fare rules of the Ontario to Houston air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and Houston?
operate flights between Ontario and Houston
How long does a flight from Ontario to Houston take?
It takes approximately 3 hour to fly non-stop from ONT to IAH, which is 1333.6 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Houston (IAH) ?
In the past couple of days, the cheapest tickets to IAH from ONT were found on DL : USD 154
Do I need a passport to fly between ONT and IAH?
No
What’s the latest departure time from ONT to IAH ?
The last flight leaves ONT at 2:08 pm

Ontario (ONT) to Houston (IAH): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport George Bush Intercontinental Houston , Houston, US
Distance 1334 miles

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