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Cheap flights from Ontario to Austin from $54

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Austin departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Austin

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to Austin that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to Austin.

Cheap last minute flights

Planning a quick getaway from Ontario to Austin? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Austin, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ontario to Austin

Find recent round-trip train or bus tickets from Ontario to Austin.

All round-trip flight deals to Austin

The cheapest plane tickets to Austin found on KAYAK recently.
7:45 am - 3:09 pmONT-AUS
5h 24m1 stop
4:05 pm - 7:09 pmAUS-ONT
5h 04m1 stop
$106Frontier
Find Deal
Wed, Jan 15 - Sat, Jan 18
8:04 am - 3:05 pmONT-AUS
5h 01m1 stop
4:14 pm - 11:47 pmAUS-ONT
9h 33m1 stop
$108Frontier
Find Deal
Sat, Feb 1 - Tue, Feb 4
4:25 pm - 11:38 pmONT-AUS
5h 13m1 stop
9:00 am - 3:29 pmAUS-ONT
8h 29m2 stops
$221American Airlines
Find Deal
Sat, Jan 11 - Sat, Jan 25
7:00 am - 3:49 pmONT-AUS
6h 49m1 stop
5:41 am - 9:09 amAUS-ONT
5h 28m1 stop
$226American Airlines
Find Deal
Sat, Jan 18 - Mon, Jan 20
6:00 am - 1:48 pmONT-AUS
5h 48m1 stop
6:59 pm - 11:53 pmAUS-ONT
6h 54m1 stop
$236Delta
Find Deal
Fri, Jan 24 - Mon, Jan 27
1:21 pm - 9:29 pmONT-AUS
6h 08m1 stop
12:14 pm - 4:28 pmAUS-ONT
6h 14m1 stop
$267Delta
Find Deal
Sat, Jan 11 - Tue, Jan 14
10:35 am - 3:15 pmONT-AUS
2h 40mnonstop
4:00 pm - 5:20 pmAUS-ONT
3h 20mnonstop
$273Southwest
Find Deal
Wed, Feb 12 - Wed, Feb 19
10:35 am - 3:15 pmONT-AUS
2h 40mnonstop
6:45 am - 1:25 pmAUS-ONT
8h 40m1 stop
$282Southwest
Find Deal
Wed, Feb 12 - Wed, Feb 19
1:45 pm - 8:59 pmONT-AUS
5h 14m1 stop
5:55 pm - 9:57 pmAUS-ONT
6h 02m1 stop
$316United Airlines
Find Deal
Mon, Jan 13 - Thu, Jan 16
6:00 am - 3:24 pmONT-AUS
7h 24m1 stop
5:59 pm - 9:59 pmAUS-ONT
6h 00m1 stop
$365United Airlines
Find Deal
Thu, Feb 13 - Tue, Feb 18
7:45 am - 3:14 pmONT-AUS
5h 29m1 stop
$54Frontier
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Wed, Jan 22
7:45 am - 3:14 pmONT-AUS
5h 29m1 stop
$55Frontier
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Tue, Feb 4
4:25 pm - 11:38 pmONT-AUS
5h 13m1 stop
$108American Airlines
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Tue, Jan 21
12:48 pm - 10:33 pmONT-AUS
7h 45m2 stops
$113American Airlines
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Wed, Jan 22
1:21 pm - 9:29 pmONT-AUS
6h 08m1 stop
$118Delta
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Sat, Jan 18
10:35 am - 3:15 pmONT-AUS
2h 40mnonstop
$144Southwest
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Wed, Jan 22
1:44 pm - 9:23 pmONT-AUS
5h 39m1 stop
$149United Airlines
Find Deal
Sat, Feb 22
10:35 am - 3:15 pmONT-AUS
2h 40mnonstop
$150Southwest
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Fri, Jan 24
1:05 pm - 12:35 amONT-AUS
9h 30m1 stop
$153Delta
Find Deal
Sat, Feb 22
6:00 am - 3:24 pmONT-AUS
7h 24m1 stop
$168United Airlines
Find Deal
Tue, Feb 18
10:39 pm - 4:19 pmONT-AUS
15h 40m1 stop
10:30 pm - 8:06 amAUS-ONT
11h 36m1 stop
$282Frontier
Find Deal
Tue, Dec 24 - Sat, Jan 4
10:39 pm - 4:19 pmONT-AUS
15h 40m1 stop
10:30 pm - 7:09 amAUS-ONT
10h 39m1 stop
$288Frontier
Find Deal
Tue, Dec 24 - Thu, Jan 2
3:45 pm - 12:50 amONT-AUS
7h 05m1 stop
4:00 pm - 5:20 pmAUS-ONT
3h 20mnonstop
$577Southwest
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Fri, Dec 27 - Wed, Jan 8
11:25 am - 4:05 pmONT-AUS
2h 40mnonstop
4:00 pm - 5:20 pmAUS-ONT
3h 20mnonstop
$578Southwest
Find Deal
Fri, Dec 27 - Wed, Jan 8
6:05 am - 3:58 pmONT-AUS
7h 53m1 stop
12:45 pm - 6:24 pmAUS-ONT
7h 39m2 stops
$596American Airlines
Find Deal
Fri, Dec 27 - Wed, Jan 8
11:56 am - 9:15 pmONT-AUS
7h 19m1 stop
12:14 pm - 4:28 pmAUS-ONT
6h 14m1 stop
$616Delta
Find Deal
Mon, Dec 23 - Wed, Jan 8
7:15 am - 4:51 pmONT-AUS
7h 36m1 stop
12:22 pm - 6:25 pmAUS-ONT
8h 03m1 stop
$799American Airlines
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Wed, Dec 25 - Wed, Jan 1
6:52 am - 5:36 pmONT-AUS
8h 44m1 stop
1:07 pm - 7:41 pmAUS-ONT
8h 34m1 stop
$856Delta
Find Deal
Thu, Dec 26 - Sun, Dec 29
5:05 am - 1:15 pmONT-AUS
6h 10m1 stop
5:47 pm - 5:26 pmAUS-ONT
25h 39m3 stops
$951United Airlines
Find Deal
Wed, Dec 25 - Wed, Jan 1
1:42 pm - 8:58 pmONT-AUS
5h 16m1 stop
5:35 pm - 5:26 pmAUS-ONT
25h 51m2 stops
$1,231United Airlines
Find Deal
Wed, Dec 25 - Sun, Dec 29
10:35 am - 3:15 pmONT-AUS
2h 40mnonstop
4:00 pm - 5:20 pmAUS-ONT
3h 20mnonstop
$273Southwest
Find Deal
Wed, Feb 12 - Wed, Feb 19
11:55 am - 4:35 pmONT-AUS
2h 40mnonstop
4:00 pm - 5:20 pmAUS-ONT
3h 20mnonstop
$368Southwest
Find Deal
Thu, Feb 13 - Wed, Feb 19
10:40 am - 3:20 pmONT-AUS
2h 40mnonstop
4:00 pm - 5:20 pmAUS-ONT
3h 20mnonstop
$478Southwest
Find Deal
Thu, Jan 16 - Tue, Jan 21
6:00 am - 10:40 amONT-AUS
2h 40mnonstop
9:30 pm - 10:45 pmAUS-ONT
3h 15mnonstop
$488Southwest
Find Deal
Sat, Mar 8 - Sat, Mar 15
11:55 am - 4:35 pmONT-AUS
2h 40mnonstop
4:00 pm - 5:20 pmAUS-ONT
3h 20mnonstop
$528Southwest
Find Deal
Fri, Feb 21 - Tue, Feb 25
2:30 pm - 7:15 pmONT-AUS
2h 45mnonstop
2:40 pm - 3:55 pmAUS-ONT
3h 15mnonstop
$724Southwest
Find Deal
Fri, Mar 21 - Mon, Mar 24

American Airlines flights from Ontario to Austin

Our best American Airlines deals on Ontario to Austin flight tickets
American Airlines
Jan 11
ONT4:25 pmOntario
5h 13m
1 stop
AUS11:38 pmAustin Bergstrom
Jan 25
AUS9:00 amAustin Bergstrom
8h 29m
2 stops
ONT3:29 pmOntario
American Airlines
Jan 18
ONT7:00 amOntario
6h 49m
1 stop
AUS3:49 pmAustin Bergstrom
Jan 20
AUS5:41 amAustin Bergstrom
5h 28m
1 stop
ONT9:09 amOntario
American Airlines
Jan 18
ONT12:48 pmOntario
8h 33m
2 stops
AUS11:21 pmAustin Bergstrom
Jan 20
AUS5:41 amAustin Bergstrom
5h 28m
1 stop
ONT9:09 amOntario

Frontier flights from Ontario to Austin

Our best Frontier deals on Ontario to Austin flight tickets
Frontier
Jan 15
ONT7:45 amOntario
5h 24m
1 stop
AUS3:09 pmAustin Bergstrom
Jan 18
AUS4:05 pmAustin Bergstrom
5h 04m
1 stop
ONT7:09 pmOntario
Frontier
Feb 1
ONT8:04 amOntario
5h 01m
1 stop
AUS3:05 pmAustin Bergstrom
Feb 4
AUS4:14 pmAustin Bergstrom
9h 33m
1 stop
ONT11:47 pmOntario
Frontier
Jan 16
ONT7:56 amOntario
10h 47m
1 stop
AUS8:43 pmAustin Bergstrom
Jan 21
AUS4:14 pmAustin Bergstrom
9h 33m
1 stop
ONT11:47 pmOntario

See travel insights to Austin from

How to get the cheapest flight ticket from Ontario to Austin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Austin?

The cheapest month to fly to Austin from Ontario is in September. Flight prices, which tend to average around $249, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in September, then February is your next best option. Flight prices from Ontario to Austin during February average around $258.

What is the cheapest day to depart on your flight to Austin?

The cheapest day to depart on your flight to Austin is on a Wednesday when prices can be found for as low as $277. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Austin for around $342.

What is the cheapest time of day to depart on your flight to Austin?

In the evening is the cheapest time of day to fly from Ontario to Austin when you can find flight prices for as low as $273. Flying to Austin in the evening is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly at noon, with an average ticket price of $324. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ontario to Austin Bergstrom flight route?

Fly from Ontario to Austin Bergstrom for the best Ontario - Austin Bergstrom flight prices

How far in advance should I book a flight to Austin?

We recommend purchasing flights from Ontario to Austin 49 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Austin for $335. Keep in mind that you might be able to find cheaper flights to Austin at any time. In fact, our users found flights for as low as $108 in the past 72 hours.

What cabin class options are available on Ontario to Austin Bergstrom flights?

There are 1 cabin classes available to choose from on Ontario to Austin Bergstrom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ontario to Austin flights?

You could potentially save up to 58% on your flight if you consider stops on a Ontario to Austin flight.

How have Ontario to Austin flight prices changed over time?

As of December 2024, prices for Ontario to Austin flights are approximately 45% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Austin

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Austin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Austin (ONT to AUS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Austin

Best Price Found

$54

Fastest flight time

2h 40m

Direct flights

Every day

Airports in Austin

1 airport
The best one-way flight to Austin from Ontario in the past 72 hours is $54. The best round-trip flight deal from Ontario to Austin found on momondo in the last 72 hours is $106.
The fastest flight from Ontario to Austin takes 2h 40m
Direct flights go from Ontario to Austin every day.
There is 1 airport near Austin: Austin Bergstrom (AUS)

  • How far is Ontario to Austin Bergstrom by plane?

    Ontario and Austin Bergstrom are 1190.2 mi apart from one another. Typically, this will take 2h 40m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Austin Bergstrom Airport?

    Prices for flights from Ontario Airport to Austin Bergstrom Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario Airport to Austin Bergstrom Airport?

  • How old do you have to be to fly from Ontario Airport to Austin Bergstrom Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Austin Bergstrom Airport.

  • What documentation or ID do you need to fly to Austin Bergstrom Airport?

    The required travel and health documents for your Austin Bergstrom Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Austin Bergstrom Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Ontario to Austin?

  • What is the most popular airline from Ontario to Austin?


Best airlines flying from Ontario to Austin

Compare and see reviews for airlines that fly from Ontario to Austin with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $117Free CancellationRating
6.1
3,472 reviews
Search Frontier flights
DeltaPriceFrom $193Free CancellationRating
8.0
8,594 reviews
Search Delta flights
United AirlinesPriceFrom $225Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
SouthwestPriceFrom $230Free CancellationRating
8.1
4,804 reviews
Search Southwest flights
American AirlinesPriceFrom $232Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Southwest Flights From Ontario to Austin

    Southwest is one of the most popular airlines flying from Ontario to Austin, operating 6 flights/week on average for this route. A good Southwest flight deal for Ontario to Austin starts from $230 round-trip, up to an average price of $382. Our users have rated Southwest at 8.1/10.

  • United Airlines Flights From Ontario to Austin

    United Airlines is also a popular choice for this route. United Airlines flight deals for Ontario to Austin start from as low as $225 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $439. United Airlines operates 2 flights to Austin from Ontario in an average week. Users have rated it 7.4/10 across 9,028 reviews.


Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Austin?

It is quick and easy to find Ontario to Austin flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Austin that suits you.

Can I find flights from Ontario to Austin with flexible booking policies on momondo?

Flights from Ontario to Austin with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Austin?

Once you have performed a search for Ontario to Austin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Austin right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Austin flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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