Flights from AUS(Austin|Austin–Bergstrom International Airport) to ONT(Los Angeles|Ontario International Airport)
Flights from Austin to Los Angeles
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AUS to ONT, Austin–Bergstrom International Airport to Ontario International Airport Cheap Flights
Find the best flight deals from Austin–Bergstrom International Airport to Ontario International Airport
AUS - ONT Flight Information
Austin → Los AngelesFlight information between Austin and Los Angeles
Cheapest one-way flight price
US$48
Cheapest return ticket price
US$134
Cheapest month
February
Peak season for travel
June
Flight distance
1,912.68 km
AUS - ONT Cheap Flights
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AUS - ONT Flight Airlines
Major airlines flying this route
AUS - ONT Route FAQs
Common questions about flights from AUS to ONT
Based on HopeGoo data, Frontier Airlines offers one-way fares as low as US$48 on Cheapest nonstop routes (e.g. AUS to ONT on Tue, Apr 21), while Frontier Airlines offers Cheapest nonstop round-trips from US$134 departing on Sat, Feb 28 and returning on Wed, Mar 4.
By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Austin to Ontario is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
To find best deals on flights from Austin to Ontario, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Apr 21, with one-way flights priced at just US$48. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo flight deals and promo codes frequently. · Avoid peak season unless you book very early. It seems the peak season for Ontario travel is around June. · Get exclusive promo codes for HopeGoo app users.
The cheapest months to fly from Austin to Ontario is February, when demand for travel is lower.
After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Austin to Ontario on February 28, 2026 with Frontier Airlines, with prices starting at US$134.
The time difference between Ontario and Austin is 2h.
Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your HopeGoo, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.