$92 Cheap Flights from Austin (AUS) to Ontario (ONT)

View $92 flight on Tue, Jun 10, 2025Opens in a new window
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Cheap Flights from Austin to Ontario (AUS-ONT)

Prices were available within the past 7 days and start at $92 for one-way flights and $200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Jun 10 - Thu, Jun 12
AUS
Austin
ONT
Ontario
$200 Roundtrip, found 8 hours ago
$200
Roundtrip
found 8 hours ago
Select Southwest Airlines flight, departing Tue, Jun 10 from Austin to Ontario, returning Thu, Jun 12, priced at $200 found 8 hours ago
Frontier Airlines
Tue, Apr 29 - Wed, May 14
AUS
Austin
ONT
Ontario
$202 Roundtrip, found 4 days ago
$202
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, Apr 29 from Austin to Ontario, returning Wed, May 14, priced at $202 found 4 days ago
Frontier Airlines
Tue, Jun 3 - Thu, Jun 5
AUS
Austin
ONT
Ontario
$203 Roundtrip, found 1 day ago
$203
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jun 3 from Austin to Ontario, returning Thu, Jun 5, priced at $203 found 1 day ago
Frontier Airlines
Sat, May 31 - Thu, Jun 5
AUS
Austin
ONT
Ontario
$208 Roundtrip, found 2 hours ago
$208
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, May 31 from Austin to Ontario, returning Thu, Jun 5, priced at $208 found 2 hours ago
Frontier Airlines
Tue, Apr 29 - Sat, May 3
AUS
Austin
ONT
Ontario
$208 Roundtrip, found 1 hour ago
$208
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Apr 29 from Austin to Ontario, returning Sat, May 3, priced at $208 found 1 hour ago
Frontier Airlines
Sat, May 24 - Sat, May 31
AUS
Austin
ONT
Ontario
$210 Roundtrip, found 13 hours ago
$210
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Sat, May 24 from Austin to Ontario, returning Sat, May 31, priced at $210 found 13 hours ago
Frontier Airlines
Fri, May 16 - Sun, May 18
AUS
Austin
ONT
Ontario
$210 Roundtrip, found 1 hour ago
$210
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, May 16 from Austin to Ontario, returning Sun, May 18, priced at $210 found 1 hour ago
United
Fri, Jul 18 - Mon, Jul 21
AUS
Austin
ONT
Ontario
$212 Roundtrip, found 2 hours ago
$212
Roundtrip
found 2 hours ago
Select United flight, departing Fri, Jul 18 from Austin to Ontario, returning Mon, Jul 21, priced at $212 found 2 hours ago
American Airlines
Sat, May 17 - Sat, May 24
AUS
Austin
ONT
Ontario
$226 Roundtrip, found 5 hours ago
$226
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Sat, May 17 from Austin to Ontario, returning Sat, May 24, priced at $226 found 5 hours ago
Delta
Wed, Jul 2 - Sat, Jul 5
AUS
Austin
ONT
Ontario
$234 Roundtrip, just found
$234
Roundtrip
just found
Select Delta flight, departing Wed, Jul 2 from Austin to Ontario, returning Sat, Jul 5, priced at $234 just found

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT) cost?
You can land cheap return tickets from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT) starting from $175. Book a seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines and Spirit Airlines flight leaving AUS on May 13 2025 and touching down at ONT. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from AUS to ONT?
The cheapest flights from AUS to ONT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT)?
When heading out of Austin-Bergstrom Intl. Airport (AUS), you can jump on a nonstop flight to Los Angeles - Ontario Intl. Airport (ONT) with Southwest Airlines.
What is the cheapest airline that flies from AUS to ONT?
With tickets starting at $99 for a one-way journey from AUS to ONT, Southwest Airlines is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from AUS on May 28 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT)?
On average, just 1 direct flight departs each day from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT). Need more options? Use our filters to find flights with layovers and add a new destination to your journey.
What are the most popular departure times for flights from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT)?
The 1 PM departures from AUS to ONT are the busiest. Prices can be higher for these popular slots. If you want to save on your trip, book during off-peak hours.
What day of the week has the most flights from AUS to ONT?
Jet off on a Friday if you’re searching for the best selection of flights from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT).
What is the earliest flight from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT)?
The first flight of the day jetting off from Austin-Bergstrom Intl. Airport (AUS) is at around 1:35PM UTC-6. Catch this flight and you’ll land at Los Angeles - Ontario Intl. Airport (ONT) at approximately 2:55PM UTC-8. The total travel time is 3h 20m.
How long does it take to fly from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT)?
Flights from AUS to ONT have an average travel time of 3 hours and 20 minutes. The total distance between the two is 1,200 mi.
What is the best time to fly from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT)?
To land at Los Angeles - Ontario Intl. Airport (ONT) on schedule, select a flight that takes off from Austin-Bergstrom Intl. Airport (AUS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Austin-Bergstrom Intl. Airport (AUS)?
Land at any of these Ontario hubs after your direct flight from Austin-Bergstrom Intl. Airport (AUS):

  • Los Angeles Intl. Airport (LAX)
  • John Wayne Airport (SNA)
  • Bob Hope Airport (BUR)
  • Los Angeles - Ontario Intl. Airport (ONT)
  • Long Beach Municipal Airport (LGB)

Is it cheaper to buy a plane ticket from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Waiting until just before your trip to book a flight from AUS to ONT generally means paying more. While it’s possible to find some last-minute offers, there’s no guarantee. Be flexible with your itinerary for a better chance of getting a bargain.
Is it cheaper to book an AUS to ONT flight and hotel package?
Compared with arranging flights and hotels separately, booking an AUS to ONT flight and hotel package with Expedia could result in significant savings. What’s more, managing everything in one place will take the hassle out of planning your trip. Simply secure your flights and choose from our extensive range of hotels, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to Los Angeles - Ontario Intl. Airport (ONT)?
Generally, it’s possible to reschedule or cancel your AUS to ONT flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find more details on our Customer Service portal.
*Available to One Key members.