Cheap Flight Tickets from Austin (AUS) to Ontario (ONT), Starting at $152

Good to Know: Cheapest and Fastest AUS - ONT Flights

Useful information for finding best airline tickets from Austin Bergstrom International to Ontario International on your next trip.

Cheapest Round Trip Flight

$263

AA American Airlines • 1 stop • 8h 45m

Oct 10 – Oct 12

The cheapest round trip flight from Austin to Ontario (AUS-ONT-AUS) is currently $263

🔍 Search Flights

Cheapest One way Flight

$152

AA American Airlines • 1 stop • 8h 45m

Oct 16

The cheapest one way flight from Austin to Ontario (AUS-ONT) is currently $152

🔍 Search Flights

Cheapest Direct Flight

$281

AS Alaska Airlines • nonstop • 5h 39m

Oct 18

The cheapest nonstop flight from Austin to Ontario (AUS-ONT) is currently $281

🔍 Search Flights

Fastest Flight

5h 5m

The fastest nonstop flight from Austin to Ontario (AUS-ONT) takes 5h 5m

Top Airlines Flying from Austin to Ontario

American Airlines, AA

American Airlines

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Austin (AUS) to Ontario (ONT)

Compare and book low fare round-trip air tickets from Austin to Ontario. Ideal for travelers with confirmed return itineraries.

Oct 10 - Oct 12, Economy
AA
Austin → Ontario
8h 45m
5:46 PM - 9:11 PM • 1 stop
AA
Austin → Ontario
4h 16m
4:46 PM - 9:42 PM • nonstop
$263
American Airlines
Oct 10 - Oct 12, Economy
AA
Austin → Ontario
8h 48m
8:24 PM - 11:52 PM • 1 stop
AA
Austin → Ontario
4h 16m
4:46 PM - 9:42 PM • nonstop
$263
American Airlines
Oct 10 - Oct 12, Economy
AA
Austin → Ontario
8h 41m
11:55 AM - 3:16 PM • 1 stop
AA
Austin → Ontario
4h 16m
4:46 PM - 9:42 PM • nonstop
$263
American Airlines
Oct 18 - Oct 21, Economy
AA
Austin → Ontario
10h 42m
7:10 PM - 11:52 PM • 1 stop
AA
Austin → Ontario
7h 22m
1:05 PM - 7:47 PM • 1 stop
$286
American Airlines
Oct 18 - Oct 21, Economy
AA
Austin → Ontario
10h 53m
7:00 AM - 11:53 AM • 1 stop
AA
Austin → Ontario
7h 22m
1:05 PM - 7:47 PM • 1 stop
$335
American Airlines
Oct 18 - Oct 21, Economy
DL
Austin → Ontario
9h 12m
12:31 PM - 4:23 PM • 1 stop
DL
Austin → Ontario
8h 45m
9:45 AM - 5:10 PM • 1 stop
$875
Delta Airlines

Fly from Austin to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Austin to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Austin to Ontario Flights

What are the airports in Austin?
AUS
What’s the most popular airline flying from AUS to ONT?
The most popular airline flying from Austin to Ontario are
Can I fly from AUS to ONT non-stop?
Yes, you can fly AUS to ONT non-stop on
Which airlines fly nonstop between Austin and Ontario?
The non-stop flights between Austin and Ontario are .
What’s the earliest departure time from AUS to ONT Airport?
The earliest flight leaves AUS at 5:15 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Austin to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from AUS to ONT?
Read the fare rules of the Austin to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Austin and Ontario?
operate flights between Austin and Ontario
How long does a flight from Austin to Ontario take?
It takes approximately 3 hour to fly non-stop from AUS to ONT, which is 1196.46 miles by air.
Which airlines provide the cheapest flights from Austin (AUS) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from AUS were found on WN : USD 192
Do I need a passport to fly between AUS and ONT?
No
What’s the latest departure time from AUS to ONT ?
The last flight leaves AUS at 8:44 pm

Essential Information for Booking Flights from Austin (AUS) - AI Insights

What's the cheapest airline from aus to ont?
For a round-trip flight from Austin (aus) to Ontario (ont) with 4 passengers, traveling in Economy class, and with 2 stops, you can find the cheapest airline tickets on fareleaders.com. You can book flights with airfare savings and budget-friendly options.
What's the popular airline to fly from aus to ont?
You can fly from Austin to Ontario with Southwest Airlines, which offers a budget-friendly option for your round-trip journey. Southwest Airlines operates with two stops, and booking in advance can help you secure the best airfares. For a group of four, Southwest Airlines is a popular choice for affordable air travel.
What's the cheapest day of the week to fly from aus to ont?
The cheapest day to fly from Austin to Ontario is Sunday. Flying on Sundays can result in lower airfares, making it a budget-friendly option for your round-trip journey. Consider booking your flights in advance to secure the best rates. Low fares and savings are available when booking early for your trip.
What's the cheapest month to fly from aus to ont?
The cheapest month to fly from Austin to Ontario is November, as it tends to have lower airfares compared to other months. Booking in advance, with at least 16 days prior to your trip, can help you secure budget-friendly flights. You can find affordable airline tickets for your round-trip journey from Austin to Ontario during this period.
Which airline/airlines fly from aus to ont?
The airlines that fly from Austin to Ontario are Alaska Airlines, American Airlines, Delta Airlines, United Airlines, JetBlue Airways, Frontier Airlines, Viva Aerobus, Southwest Airlines, and Aeromexico. You can find the cheapest airfares on our website for your round-trip journey. Look for budget-friendly flights with airlines offering savings on airfares for your July weekend getaway.
What are the cheapest flights available from Austin Bergstrom International Airport to Ontario International Airport?
You can find the cheapest flights from Austin Bergstrom International Airport to Ontario International Airport on FareLeaders.com, with Southwest Airlines offering the best airfare options.
How far in advance should I book my airfare for a round trip economy flight?
For the best airfare options, book your round trip economy flight at least 16 days in advance, as per the advance booking days specified in your trip details.
Can I find last-minute airfare deals on your website?
Yes, you can find last-minute airfare deals on FareLeaders.com, especially on Sundays, which are the cheapest travel days.
What are the different types of airfare options available for my trip?
FareLeaders.com offers various airfare options, including economy, premium economy, business, and first class, depending on your cabin type and preferences.
How do I book a flight with the cheapest airfare on your website?
To book a flight with the cheapest airfare on FareLeaders.com, simply compare airfares from different airlines and select the best option that suits your needs.
How can I plan my weekend getaway with the best airfare options?
For a successful weekend getaway, plan your trip during the cheapest month, which is November, and book your flights in advance to secure the best airfare options.

Austin (AUS) to Ontario (ONT): Airport Information

Origin Airport Austin Bergstrom International , Austin, US
Destination Airport Ontario International , Ontario, US
Distance 1196 miles

More Flight Options for Austin (AUS) and Ontario (ONT)

Why Fareleaders for AUS to ONT Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Austin to Ontario flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on AUS to ONT flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Austin to Ontario flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Austin (AUS) to Ontario (ONT)
Terms and Conditions*