$67 Cheap Flights from Houston (HOU) to Ontario (ONT)

View $67 flight on Fri, Dec 12, 2025Opens in a new window

Popular airlines from Houston William Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Houston to Ontario (HOU-ONT)

Prices were available within the past 7 days and start at $67 for one-way flights and $139 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Mon, Dec 8 - Fri, Dec 12
HOU
Houston
ONT
Ontario
$139 Roundtrip, found 5 days ago
$139
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Mon, Dec 8 from Houston to Ontario, returning Fri, Dec 12, priced at $139 found 5 days ago
Southwest Airlines
Fri, Dec 12 - Mon, Dec 15
HOU
Houston
ONT
Ontario
$143 Roundtrip, just found
$143
Roundtrip
just found
Select Southwest Airlines flight, departing Fri, Dec 12 from Houston to Ontario, returning Mon, Dec 15, priced at $143 just found

Find the cheapest month to fly from Houston (HOU) to Ontario (ONT)

March is typically the cheapest month to fly

From $74 - $431 per traveler.

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $138
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $138

Frequently asked questions

How much does a flight from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Grab a cheap one-way flight from $67 or cheap return flight from $139 from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)?
December is the most affordable month to fly from HOU to ONT. Timing your trip outside of the busy season is often the key to finding a great deal.
Which airlines fly direct from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)?
Fly directly from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT) on a Southwest Airlines flight.
What is the cheapest airline that flies from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline flying from HOU to ONT, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)?
On average, William P. Hobby Airport (HOU) only offers 1 nonstop flight to Los Angeles - Ontario Intl. Airport (ONT) each day. For more choices, try Expedia's easy-to-use filters. Just enter your details, then select "1 Stop" or "2+ Stops" to find flights offering layovers.
What are the most popular departure times for flights from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)?
Flights between HOU and ONT tend to be busiest at 9 AM. If you're after a more relaxed atmosphere and potentially cheaper prices, choose a time outside the usual busy windows.
What day of the week has the most flights from HOU to ONT?
Depart on a Friday if you're looking for the best choice of flights from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT).
What is the earliest flight from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)?
Catch the earliest flight at around 8:45AM UTC-6, departing from William P. Hobby Airport (HOU). You'll be flying for roughly 3h 40m, landing at Los Angeles - Ontario Intl. Airport (ONT) at approximately 10:25AM UTC-8.
How long does it take to fly from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)?
Flights from HOU to ONT have an average travel time of 3 hours and 36 minutes. The distance between the two is 1,350 mi.
What airline has the least delays from HOU to ONT?
Southwest Airlines has the strongest track record for on-time direct flights from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT), with an on-time score of 83%. Use the Expedia App to look up your flight status before you jet off and receive notifications about any changes.
What is the best time to fly from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)?
To land at Los Angeles - Ontario Intl. Airport (ONT) on time, opt for a flight that leaves from William P. Hobby Airport (HOU) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Ontario from William P. Hobby Airport (HOU)?
William P. Hobby Airport (HOU) offers direct flights to Ontario. These are some of the airports you can fly to without layovers:

  • Los Angeles Intl. Airport (LAX)
  • Los Angeles - Ontario Intl. Airport (ONT)
  • Long Beach Municipal Airport (LGB)

Is it cheaper to buy a plane ticket from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Booking your flight from HOU to ONT just before your trip is generally more expensive. But if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a HOU to ONT flight and hotel package?
You can save money by securing a HOU to ONT flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred accommodations and flights, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from William P. Hobby Airport (HOU) to Los Angeles - Ontario Intl. Airport (ONT)?
If you reserved your HOU to ONT flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Origin airport
William P. Hobby
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines
Roundtrip price
$138
Distance
1341 mi
Average flight time
1 hour 30 mins

Book with confidence

Houston to Ontario Flights

The cheapest times to fly from Houston to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Ontario are during the month of December. You can find some of the cheapest flights from Houston to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Ontario

Sunday is one of the best days to book for cheap flights from Houston to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $67 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Houston to Ontario Flights

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