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CA $229 Cheap Flights from Austin (AUS) to Ontario Intl. Airport (ONT)

View CA $229 flight on Sat, Sep 5, 2026Opens in a new window

Popular airlines from Austin-Bergstrom International Airport (AUS) to Ontario Intl. Airport (ONT)

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Cheap flights from Austin (AUS) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at CA $229 for one-way flights and CA $496 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Sep 8 - Thu, Sep 10
AUS
Austin
ONT
Ontario
CA $496 Roundtrip, found 4 days ago
CA $496
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Sep 8 from Austin to Ontario, returning Thu, Sep 10, priced at CA $496 found 4 days ago
American Airlines
Fri, Sep 4 - Wed, Sep 9
AUS
Austin
ONT
Ontario
CA $500 Roundtrip, found 10 hours ago
CA $500
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Sep 4 from Austin to Ontario, returning Wed, Sep 9, priced at CA $500 found 10 hours ago
American Airlines
Tue, Sep 8 - Thu, Sep 10
AUS
Austin
ONT
Ontario
CA $501 Roundtrip, found 4 days ago
CA $501
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Sep 8 from Austin to Ontario, returning Thu, Sep 10, priced at CA $501 found 4 days ago
American Airlines
Thu, Nov 26 - Tue, Dec 1
AUS
Austin
ONT
Ontario
CA $508 Roundtrip, found 6 days ago
CA $508
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Nov 26 from Austin to Ontario, returning Tue, Dec 1, priced at CA $508 found 6 days ago
American Airlines
Thu, Nov 26 - Tue, Dec 1
AUS
Austin
ONT
Ontario
CA $522 Roundtrip, found 6 days ago
CA $522
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Nov 26 from Austin to Ontario, returning Tue, Dec 1, priced at CA $522 found 6 days ago
American Airlines
Fri, Sep 4 - Wed, Sep 9
AUS
Austin
ONT
Ontario
CA $531 Roundtrip, found 10 hours ago
CA $531
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Sep 4 from Austin to Ontario, returning Wed, Sep 9, priced at CA $531 found 10 hours ago
Delta
Wed, Nov 18 - Thu, Nov 26
AUS
Austin
ONT
Ontario
CA $554 Roundtrip, found 6 days ago
CA $554
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 18 from Austin to Ontario, returning Thu, Nov 26, priced at CA $554 found 6 days ago
United
Tue, Nov 17 - Thu, Nov 19
AUS
Austin
ONT
Ontario
CA $678 Roundtrip, found 6 days ago
CA $678
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 17 from Austin to Ontario, returning Thu, Nov 19, priced at CA $678 found 6 days ago
Southwest Airlines
Fri, Nov 20 - Sun, Nov 22
AUS
Austin
ONT
Ontario
CA $698 Roundtrip, found 6 days ago
CA $698
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Fri, Nov 20 from Austin to Ontario, returning Sun, Nov 22, priced at CA $698 found 6 days ago
Alaska Airlines
Fri, Sep 4 - Wed, Sep 9
AUS
Austin
ONT
Ontario
CA $991 Roundtrip, found 10 hours ago
CA $991
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Fri, Sep 4 from Austin to Ontario, returning Wed, Sep 9, priced at CA $991 found 10 hours ago

Find the cheapest month to fly from Austin (AUS) to Ontario (ONT)

February is typically the cheapest month to fly

From CA $182 - CA $463 per traveller.

Frequently asked questions

How much does a flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT) cost?
You can find one-way and return flights from AUS to ONT with Expedia. 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 our cheapest fares first, and use the Price Tracking tool to receive alerts when AUS to ONT ticket fares go up or down.
What is the cheapest month to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
If you're looking for the cheapest time to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT), April is typically your best bet! You can expect average return flights to be around CA$456 during this month. April often sees lower prices because it's just before the peak summer travel season, when demand starts to pick up. Other budget-friendly months to consider for this route include January and May.
Which airlines fly direct from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
Only one airline offers direct flights from Austin-Bergstrom Intl. (AUS) to Ontario Intl. Airport (ONT). Southwest Airlines operates 7 direct flights from Austin-Bergstrom Intl. to Ontario Intl. Airport every week.
What is the cheapest airline that flies from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
Airport (ONT), with tickets starting from around CA$177. Airport (ONT), with tickets starting from around CA$446 for flights that can be booked for departure within the next year. Southwest Airlines is one of the cheapest airlines offering nonstop return flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Frontier Airlines offers one of the cheapest connecting return flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
To find a cheap flight from Austin, TX (AUS-Austin-Bergstrom Intl.) 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
The best airline to fly with from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT) will differ from traveler to traveler. If you like to fly early, Southwest Airlines offers early morning flights. If price is the most important factor, Southwest Airlines typically offers the lowest fares. Alaska Airlines offers the most daily flights from Austin, TX (AUS-Austin-Bergstrom Intl.) 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
If you're looking for the best value to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT), April and May are typically the cheapest months, with average return flights around CA$456. While July is the most popular month for this route, offering plenty of flight options, it's not the cheapest. For a good balance of price and availability, focusing on the spring months of April and May will likely give you the best experience.
How many flights per day from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
There are approximately 82 connecting flights per day from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT). Some common connection points include Seattle - Tacoma Intl. (SEA), Dallas-Fort Worth Intl. (DFW), and Portland Intl. (PDX).
What is the earliest flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
The earliest flight from Austin-Bergstrom Intl. (AUS) to Ontario Intl. Airport (ONT) typically departs around 5:00 AM local time. This flight is operated by American Airlines and is available year-round. Choosing an early departure like this can help you maximize 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
You'll typically find the most flights from Austin-Bergstrom Intl. (AUS) to Ontario Intl. Airport (ONT) on a Friday, with around 79 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, United, and American Airlines. Flight options are notably more plentiful on Fridays compared to other days of the week, offering you greater flexibility.
What are the most popular departure times for flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
The most popular departure times for flights from Austin-Bergstrom Intl. (AUS) to Ontario Intl. Airport (ONT) are in the early morning, from 6am to 9am. Many major carriers, including Southwest Airlines, American Airlines and Alaska Airlines, offer flights during this window. Many travellers prefer these times because they allow for an early start to their day at their destination.
How long does it take to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
A non-stop flight from Austin-Bergstrom Intl. (AUS) to Ontario Intl. Airport (ONT) typically takes around 3 hours. This route covers a distance of approximately 1,922 kilometers. If you opt for a one-stop flight, your travel time will be longer, usually around 5 hours 48 minutes. Flights with two or more stops will take even longer, averaging about 8 hours 48 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
Yes, you can fly business class or first class between Austin-Bergstrom Intl. (AUS) and Ontario Intl. Airport (ONT).You can fly business class with Frontier Airlines and Delta.First class cabins are available on Alaska Airlines, United, Delta, and American Airlines.
How do I earn miles on a Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT) flight with Expedia?
It's easy to earn miles on a Austin, TX (AUS-Austin-Bergstrom Intl.) 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 Austin, TX (AUS)?
If you're planning to travel to Ontario from Austin-Bergstrom Intl. (AUS), you can fly directly into Los Angeles - Ontario Intl. (ONT) which offers international flights and connections. Some flights may connect through major hubs like George Bush Intercontinental (IAH), San Diego Intl. (SAN), or Denver Intl. (DEN) 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT) at the last minute?
Typically, booking a last minute flight from Austin, TX (AUS-Austin-Bergstrom Intl.) 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT) flight and hotel package?
Securing a Austin, TX (AUS-Austin-Bergstrom Intl.) 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 Austin, TX (AUS-Austin-Bergstrom Intl.) to Ontario Intl. Airport (ONT)?
If you booked your Austin, TX (AUS-Austin-Bergstrom Intl.) 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

0
Origin airport
Austin-Bergstrom Intl.
Destination airport
Ontario Intl. Airport
Airlines serving
Alaska Airlines, American Airlines, Delta
Roundtrip price
CA $495
Distance
1909 km

Book with confidence

Austin to Los Angeles Flights

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

With Expedia, it’s simple to find and book flights to Ontario Intl. Airport from Austin 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 Austin to Ontario Intl. Airport today, tomorrow, or this week.  

 

Save dollars with cheap flights from Austin-Bergstrom Intl., AUS to Ontario Intl. Airport, ONT 

Sort your search results by price to find great deals on your flight from Austin 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 Austin currently is just CA $496 rising to CA $991.  

Here are more money-saving tips: 

  • Fly in September 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 Austin 

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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