CA $188 Cheap Flights from Ontario Intl. Airport (ONT) to Austin (AUS)

View CA $188 flight on Thu, Sep 10, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at CA $188 for one-way flights and CA $376 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Sep 10 - Mon, Sep 14
ONT
Ontario
AUS
Austin
CA $376 Roundtrip, found 2 days ago
CA $376
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Sep 10 from Ontario to Austin, returning Mon, Sep 14, priced at CA $376 found 2 days ago
Alaska Airlines
Fri, Sep 11 - Sat, Sep 12
ONT
Ontario
AUS
Austin
CA $376 Roundtrip, found 2 days ago
CA $376
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Sep 11 from Ontario to Austin, returning Sat, Sep 12, priced at CA $376 found 2 days ago
Alaska Airlines
Wed, May 27 - Wed, Jun 10
ONT
Ontario
AUS
Austin
CA $377 Roundtrip, found 4 days ago
CA $377
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, May 27 from Ontario to Austin, returning Wed, Jun 10, priced at CA $377 found 4 days ago
American Airlines
Fri, May 15 - Fri, Jun 5
ONT
Ontario
AUS
Austin
CA $379 Roundtrip, found 6 days ago
CA $379
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, May 15 from Ontario to Austin, returning Fri, Jun 5, priced at CA $379 found 6 days ago
American Airlines
Fri, May 15 - Sat, Jun 6
ONT
Ontario
AUS
Austin
CA $382 Roundtrip, found 6 days ago
CA $382
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, May 15 from Ontario to Austin, returning Sat, Jun 6, priced at CA $382 found 6 days ago
Delta
Thu, Sep 10 - Mon, Sep 14
ONT
Ontario
AUS
Austin
CA $405 Roundtrip, found 2 days ago
CA $405
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Sep 10 from Ontario to Austin, returning Mon, Sep 14, priced at CA $405 found 2 days ago
Alaska Airlines
Thu, Sep 10 - Mon, Sep 14
ONT
Ontario
AUS
Austin
CA $418 Roundtrip, found 2 days ago
CA $418
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Ontario to Austin, returning Mon, Sep 14, priced at CA $418 found 2 days ago
Delta
Fri, May 22 - Fri, Jun 5
ONT
Ontario
AUS
Austin
CA $419 Roundtrip, found 4 days ago
CA $419
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, May 22 from Ontario to Austin, returning Fri, Jun 5, priced at CA $419 found 4 days ago
Delta
Tue, Jun 9 - Mon, Jun 15
ONT
Ontario
AUS
Austin
CA $420 Roundtrip, found 6 days ago
CA $420
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Jun 9 from Ontario to Austin, returning Mon, Jun 15, priced at CA $420 found 6 days ago
United
Fri, May 15 - Sat, Jun 6
ONT
Ontario
AUS
Austin
CA $451 Roundtrip, found 6 days ago
CA $451
Roundtrip
found 6 days ago
Select United flight, departing Fri, May 15 from Ontario to Austin, returning Sat, Jun 6, priced at CA $451 found 6 days ago

Alternative airports near Austin

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

Select flight to Austin-Bergstrom Intl. AUS. Cheapest and Closest option available. Average driving time to city centre is 11 minutes. Flights from CA $419
AUS
Austin-Bergstrom Intl.
CheapestClosest
Average driving time to city centre11 min
Flights from CA $419

Frequently asked questions

What is the cheapest month to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
April is typically the cheapest month to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.), with average round-trip fares around 822 CAD. This is about 15% lower than the average price throughout the year. April often sees lower prices as it's outside of peak holiday travel seasons. Other cheap months to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) include August and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
Enter ONT to AUS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
To find a cheap flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.), 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 Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The best airline to fly with from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) will differ from traveler to traveler. If you like to fly early, WN offers early morning flights. If price is the most important factor, WN typically offers the lowest fares. WN offers the most daily flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.), 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 Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
When looking for the best time to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.), it's a balance between price and availability. Based on booking data from the past year, you'll find the cheapest flights in April and August, with average round-trip fares around 822 CAD. While October is the most popular month for this route, offering plenty of flight options, it might not be the cheapest. For the best value, consider April or August to save on your trip.*Prices based on flights available on Expedia in the last year.
How many flights per day from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
There are approximately 66 connecting flights per day from Los Angeles - Ontario Intl. (ONT) to Austin-Bergstrom Intl. (AUS). Some common connection points include Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), and Sky Harbor Intl. (PHX).
What is the earliest flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The earliest flight from Los Angeles - Ontario Intl. (ONT) to Austin-Bergstrom Intl. (AUS) typically departs at approximately 12:05 AM local time, operated by F9. This is a seasonal service active in May. An early departure like this can help 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 Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
You'll typically find the most flights from Los Angeles - Ontario Intl. (ONT) to Austin-Bergstrom Intl. (AUS) on a Sunday, with around 52 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, American Airlines, and Alaska Airlines.
What are the most popular departure times for flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
The most popular departure times for flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) are in the early morning, from 6am to 9am. About 29% of passengers prefer this time. Many major carriers, including Southwest Airlines, American Airlines and United Airlines, offer flights during this window. This timing works well because it allows you to get an early start on your travel day and arrive in Austin with plenty of time.
How long does it take to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
A nonstop flight from ONT to AUS typically takes around 2 hours 50 minutes, covering approximately 1,194 miles. Connecting flights on this route usually add 2 hours 30 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
Select the "Business class" and "First class" filters when looking for ONT to AUS flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) flight with Expedia?
It's easy to earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) 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 Austin from Los Angeles - Ontario Intl. (ONT)?
If you're planning to travel to Austin from Los Angeles - Ontario Intl. (ONT), you can fly into Austin-Bergstrom Intl. (AUS) Some flights may connect through major hubs like San Francisco Intl. (SFO), Sky Harbor Intl. (PHX), Denver Intl. (DEN) before reaching Austin. 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 Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) at the last minute?
Typically, booking a last minute flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) 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 Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) flight and hotel package?
Securing a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) 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 Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.)?
If you booked your Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Austin, TX (AUS-Austin-Bergstrom Intl.) 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
Ontario Intl. Airport
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta
Roundtrip price
CA $376
Distance
1909 km
Average flight time
2 hours 40 mins

Book with confidence

Los Angeles to Austin Flights

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

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

 

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

Sort your search results by price to find great deals on your flight from Ontario Intl. Airport to Austin—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Austin from Ontario Intl. Airport currently is just CA $376 rising to CA $451.  

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 Austin  
  • 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 Austin from Ontario Intl. Airport 

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 Austin with Expedia today.

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