Cheap Flight Tickets from Ontario (ONT) to Austin (AUS), Starting at $198

Good to Know: Cheapest and Fastest ONT - AUS Flights

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

Cheapest Round Trip Flight

$219

F9 Frontier Airlines • 1 stop • 10h 40m

Jul 04 – Jul 15

The cheapest round trip flight from Ontario to Austin (ONT-AUS-ONT) is currently $219

🔍 Search Flights

Cheapest Direct Flight

$198

WN Southwest Airlines • nonstop • 4h 10m

Aug 06

The cheapest nonstop flight from Ontario to Austin (ONT-AUS) is currently $198

🔍 Search Flights

Fastest Flight

4h 10m

The fastest nonstop flight from Ontario to Austin (ONT-AUS) takes 4h 10m

Top Airlines Flying from Ontario to Austin

Southwest Airlines-WN

Southwest Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Delta Airline, DL

Delta Airlines

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

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

Jul 04 - Jul 15, Economy
F9
Ontario → Austin
10h 40m
10:50 AM - 7:30 PM • 1 stop
F9
Ontario → Austin
8h 54m
6:30 AM - 10:04 AM • 1 stop
$219
Frontier Airlines
Jul 04 - Jul 15, Economy
WN
Ontario → Austin
4h 15m
6:40 AM - 11:35 AM • nonstop
WN
Ontario → Austin
5h 5m
6:10 AM - 7:15 AM • nonstop
$333
Southwest Airlines
Jul 04 - Jul 15, Economy
WN
Ontario → Austin
4h 15m
6:40 AM - 11:35 AM • nonstop
WN
Ontario → Austin
9h 10m
5:20 PM - 9:10 PM • 1 stop
$344
Southwest Airlines
Jul 01 - Jul 06, Economy
WN
Ontario → Austin
4h 10m
9:55 AM - 2:45 PM • nonstop
WN
Ontario → Austin
5h 15m
5:30 PM - 6:45 PM • nonstop
$689
Southwest Airlines
Jul 01 - Jul 06, Economy
AS
Ontario → Austin
16h 42m
6:02 AM - 6:04 PM • 1 stop
AS
Ontario → Austin
13h 35m
5:41 PM - 11:56 PM • 1 stop
$710
Alaska Airlines
Jul 01 - Jul 06, Economy
AS
Ontario → Austin
32h
5:54 PM - 3:14 PM • 1 stop
AS
Ontario → Austin
13h 35m
5:41 PM - 11:56 PM • 1 stop
$1109
Alaska Airlines

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

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

FAQs on Ontario to Austin Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to AUS?
The most popular airline flying from Ontario to Austin are
Can I fly from ONT to AUS non-stop?
Yes, you can fly ONT to AUS non-stop on
Which airlines fly nonstop between Ontario and Austin?
The non-stop flights between Ontario and Austin are .
What’s the earliest departure time from ONT to AUS Airport?
The earliest flight leaves ONT at 6:02 am and lands in AUS - Austin Bergstrom International
What are the airports in Austin?
AUS
Can I make changes to my Ontario to Austin 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 ONT to AUS?
Read the fare rules of the Ontario to Austin 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 Ontario and Austin?
operate flights between Ontario and Austin
How long does a flight from Ontario to Austin take?
It takes approximately 3 hour to fly non-stop from ONT to AUS, which is 1196.46 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Austin (AUS) ?
In the past couple of days, the cheapest tickets to AUS from ONT were found on WN : USD 333
Do I need a passport to fly between ONT and AUS?
No
What’s the latest departure time from ONT to AUS ?
The last flight leaves ONT at 5:54 pm

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

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

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

Why Fareleaders for ONT to AUS Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Ontario to Austin flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on ONT to AUS flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Ontario to Austin 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 Ontario (ONT) to Austin (AUS)
Terms and Conditions*