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CA $176 Cheap Flights from Houston (IAH) to Ontario Intl. Airport (ONT)

View CA $176 flight on Tue, Oct 13, 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Ontario Intl. Airport (ONT)

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Cheap flights from Houston (IAH) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at CA $176 for one-way flights and CA $353 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Dec 1 - Wed, Dec 2
IAH
Houston
ONT
Ontario
CA $353 Roundtrip, found 3 hours ago
CA $353
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Dec 1 from Houston to Ontario, returning Wed, Dec 2, priced at CA $353 found 3 hours ago
Delta
Sat, Sep 12 - Mon, Sep 14
IAH
Houston
ONT
Ontario
CA $353 Roundtrip, found 17 hours ago
CA $353
Roundtrip
found 17 hours ago
Select Delta flight, departing Sat, Sep 12 from Houston to Ontario, returning Mon, Sep 14, priced at CA $353 found 17 hours ago
American Airlines
Sat, Sep 12 - Mon, Sep 14
IAH
Houston
ONT
Ontario
CA $354 Roundtrip, found 17 hours ago
CA $354
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Sat, Sep 12 from Houston to Ontario, returning Mon, Sep 14, priced at CA $354 found 17 hours ago
Delta
Tue, Jan 5 - Sat, Jan 9
IAH
Houston
ONT
Ontario
CA $368 Roundtrip, found 1 day ago
CA $368
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jan 5 from Houston to Ontario, returning Sat, Jan 9, priced at CA $368 found 1 day ago
Delta
Sat, Sep 12 - Mon, Sep 14
IAH
Houston
ONT
Ontario
CA $369 Roundtrip, found 17 hours ago
CA $369
Roundtrip
found 17 hours ago
Select Delta flight, departing Sat, Sep 12 from Houston to Ontario, returning Mon, Sep 14, priced at CA $369 found 17 hours ago
American Airlines
Sat, Sep 12 - Mon, Sep 14
IAH
Houston
ONT
Ontario
CA $383 Roundtrip, found 17 hours ago
CA $383
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Sat, Sep 12 from Houston to Ontario, returning Mon, Sep 14, priced at CA $383 found 17 hours ago
Delta
Fri, Dec 11 - Fri, Dec 25
IAH
Houston
ONT
Ontario
CA $384 Roundtrip, found 1 day ago
CA $384
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Dec 11 from Houston to Ontario, returning Fri, Dec 25, priced at CA $384 found 1 day ago
Alaska Airlines
Thu, Oct 22 - Mon, Oct 26
IAH
Houston
ONT
Ontario
CA $411 Roundtrip, found 21 hours ago
CA $411
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Thu, Oct 22 from Houston to Ontario, returning Mon, Oct 26, priced at CA $411 found 21 hours ago
United
Tue, Jan 19 - Thu, Feb 11
IAH
Houston
ONT
Ontario
CA $450 Roundtrip, found 1 day ago
CA $450
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jan 19 from Houston to Ontario, returning Thu, Feb 11, priced at CA $450 found 1 day ago
JetBlue Airways
Wed, Sep 23 - Mon, Sep 28
IAH
Houston
ONT
Ontario
CA $21,564 Roundtrip, found 5 hours ago
CA $21,564
Roundtrip
found 5 hours ago
Select JetBlue Airways flight, departing Wed, Sep 23 from Houston to Ontario, returning Mon, Sep 28, priced at CA $21,564 found 5 hours ago

Frequently asked questions

How much does a flight from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) cost?
You can find cheap one-way flights from CA $176 and cheap return flights from CA $353 IAH to ONT with Expedia. One-way flights typically cost between CA$279 and CA$976. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when IAH to ONT ticket fares go up or down.
What is the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
August is typically the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT), with average return fares around CA$431. August often sees lower prices as it's outside the peak summer travel season, and many families are preparing for the school year, leading to reduced demand. Other cheap months to fly from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) include April and September.
Which airlines fly direct from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
You have 2 airlines offering direct flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT):
  • United operates 7 direct flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) every week.
  • Frontier Airlines operates 7 direct flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) every week.
What is the cheapest airline that flies from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
Frontier Airlines is one of the cheapest airlines offering nonstop return flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT), with prices starting from around CA$91 for flights that can be booked for departure within the next year. JetBlue Airways offers one of the cheapest connecting return flights on this route, with prices starting from around CA$436. These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
To find a cheap flight from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
The best airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) will differ from traveler to traveler. If you like to fly early, Frontier Airlines offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. Alaska Airlines offers the most daily flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
The cheapest months to fly from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) are typically August and September, with average return flights around CA$431. April is a popular month for this route, meaning you'll find plenty of flight options then. If you're looking for the best value, focusing on August or September could save you money, while April offers more choices if flexibility is key.
How many flights per day from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
You'll find approximately 2 nonstop flights per day from George Bush Intercontinental (IAH) to Ontario Intl. Airport (ONT). For even more choices, look at flights that include layovers, as there are around 58 connecting flights daily. Some common connection points include Seattle - Tacoma Intl. (SEA), Dallas-Fort Worth Intl. (DFW), and Portland Intl. (PDX).
What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
The earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) typically departs around 12:15 AM local time. This flight is operated by United and Delta. This is a seasonal service, active only in November. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
You'll typically find the most flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) on a Friday, with around 48 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, Alaska Airlines, and American Airlines. Flight options are notably more on Fridays compared to other days of the week, offering you greater flexibility.
What are the most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
The most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Frontier Airlines and Alaska Airlines, offer flights during this window. Many travellers prefer this time because it allows for an early start to their journey, often leading to an earlier arrival at their destination.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
A nonstop flight from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) typically takes around 3 hours 30 minutes. This route covers a distance of approximately 2142 kilometres. If you opt for a one-stop flight, your travel time will be longer, usually around 6 hours 30 minutes. Flights with two or more stops will take even longer, averaging about 12 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
Yes, you can fly business class or first class between IAH and ONT.Airlines that offer business class service on this route include:
  • Frontier Airlines
  • Delta
First class cabins are available on:
  • Alaska Airlines
  • United
  • Delta
  • American Airlines
How do I earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) flight with Expedia?
It's easy to earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Ontario Intl. Airport (ONT) from Houston, TX (IAH)?
If you're planning to travel to Ontario from George Bush Intercontinental (IAH), you can fly directly into Los Angeles - Ontario Intl. (ONT). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), or Dallas-Fort Worth Intl. (DFW) before reaching Ontario. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) at the last minute?
Typically, booking a last minute flight from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) flight and hotel package?
Securing a Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT)?
If you booked your Houston, TX (IAH-George Bush Intercontinental) to Ontario Intl. Airport (ONT) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Ontario Intl. Airport
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, United
Roundtrip price
CA $352
Distance
2128 km
Average flight time
1 hour 25 mins

Book with confidence

Houston to Los Angeles Flights

The easy way to book your flights from Houston to Ontario Intl. Airport 

With Expedia, it’s simple to find and book flights to Ontario Intl. Airport from Houston whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Ontario Intl. Airport, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Houston to Ontario Intl. Airport today, tomorrow, or this week.  

 

Save dollars with cheap flights from George Bush Intercontinental, IAH to Ontario Intl. Airport, ONT 

Sort your search results by price to find great deals on your flight from Houston to Ontario Intl. Airport—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Ontario Intl. Airport from Houston currently is just CA $353 rising to CA $21,564.  

Here are more money-saving tips: 

  • Fly in December when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Ontario Intl. Airport  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Ontario Intl. Airport from Houston 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Ontario Intl. Airport with Expedia today.

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