Cheap Flight Tickets from Ontario (ONT) to Houston (IAH), Starting at $291

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

$291

F9 Frontier Airlines • 1 stop • 14h 8m

Oct 25 – Oct 30

The cheapest round trip flight from Ontario to Houston (ONT-IAH-ONT) is currently $291

🔍 Search Flights

Cheapest One way Flight

$541

UA United Airlines • 1 stop • 13h 38m

Oct 13

The cheapest one way flight from Ontario to Houston (ONT-IAH) is currently $541

🔍 Search Flights

Cheapest Direct Flight

$444

F9 Frontier Airlines • nonstop • 5h 14m

Nov 25

The cheapest nonstop flight from Ontario to Houston (ONT-IAH) is currently $444

🔍 Search Flights

Fastest Flight

5h 14m

The fastest nonstop flight from Ontario to Houston (ONT-IAH) takes 5h 14m

Top Airlines Flying from Ontario to Houston

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Southwest Airlines-WN

Southwest 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.

Oct 25 - Oct 30, Economy
F9
Ontario → Houston
14h 8m
1:38 PM - 12:26 AM • 1 stop
F9
Ontario → Houston
11h 56m
6:00 AM - 11:16 AM • 1 stop
$291
Frontier Airlines
Oct 25 - Oct 30, Economy
F9
Ontario → Houston
10h 48m
3:38 PM - 12:26 AM • 1 stop
F9
Ontario → Houston
11h 56m
6:00 AM - 11:16 AM • 1 stop
$291
Frontier Airlines
Oct 25 - Oct 30, Economy
F9
Ontario → Houston
12h 5m
8:35 PM - 6:00 AM • 1 stop
F9
Ontario → Houston
11h 56m
6:00 AM - 11:16 AM • 1 stop
$291
Frontier Airlines
Oct 25 - Oct 30, Economy
F9
Ontario → Houston
12h 33m
11:52 AM - 9:45 PM • 1 stop
F9
Ontario → Houston
11h 56m
6:00 AM - 11:16 AM • 1 stop
$291
Frontier Airlines
Nov 25 - Nov 29, Economy
F9
Ontario → Houston
13h 44m
11:40 AM - 10:04 PM • 1 stop
F9
Ontario → Houston
5h 39m
3:44 PM - 5:23 PM • nonstop
$495
Frontier Airlines
Nov 25 - Nov 29, Economy
F9
Ontario → Houston
10h 53m
10:55 AM - 7:48 PM • 1 stop
F9
Ontario → Houston
5h 39m
3:44 PM - 5:23 PM • nonstop
$495
Frontier 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 5:00 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 UA : USD 541
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 8:35 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

More Flight Options for Ontario (ONT) and Houston (IAH)

Why Fareleaders for ONT to IAH Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Ontario to Houston flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on ONT to IAH flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Ontario to Houston flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Ontario (ONT) to Houston (IAH)
Terms and Conditions*