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$128+ Cheap flights from Austin (AUS) to Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — YYZ
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Austin to Ontario

Keep the following information in mind while searching for Austin to Ontario flight deals. Data was last updated July 30, 2025.

Round-trip from

$315
(Kiwi.com)

One-way from

$128
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$617

Good round-trip deal

$625 or less

Good one-way deal

$376 or less
From Austin Bergstrom to Ontario
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One-way flight from Austin Bergstrom to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Austin Bergstrom to Ontario.
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Price to beat on a one-way flight from Austin Bergstrom to Ontario.
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Find flight deals from Austin to Ontario

Cheapest flights from Austin to Ontario
Explore the most affordable flight options available from Austin to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/45:45 amAUS - YYZ
1 stop14h 10mMultiple Airlines
Tue 9/96:30 amYYZ - AUS
1 stop16h 09mMultiple Airlines
Deal found 7/28$315
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/234:30 pmAUS - YUL
1 stop21h 20mMultiple Airlines
Mon 10/276:45 amYUL - AUS
1 stop18h 11mMultiple Airlines
Deal found 7/29$336
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/197:15 amAUS - YOW
1 stop9h 05mMultiple Airlines
Wed 9/37:00 amYOW - AUS
2 stops14h 45mMultiple Airlines
Deal found 7/29$342
This Mytrip deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/510:00 amAUS - YUL
Nonstop3h 58mAir Canada
Thu 9/115:00 amYUL - AUS
1 stop6h 30mAir Canada
Deal found 7/29$374
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1510:35 amAUS - YTZ
1 stop8h 15mMultiple Airlines
Wed 11/1912:30 pmYTZ - AUS
1 stop8h 13mMultiple Airlines
Deal found 7/30$391
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/164:50 pmAUS - YOW
1 stop12h 55mWestJet
Sun 10/196:00 amYOW - AUS
1 stop11h 01mWestJet
Deal found 7/29$437
This Mytrip deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:45 amAUS - YSB
3 stops28h 41mMultiple Airlines
Sat 9/2012:10 pmYSB - AUS
3 stops23h 57mMultiple Airlines
Deal found 7/29$978
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:30 amAUS - YSB
2 stops8h 46mUnited Airlines
Sat 9/209:40 amYSB - AUS
3 stops12h 40mUnited Airlines
Deal found 7/29$1,132
This Air Canada deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/127:45 pmAUS - YSB
2 stops18h 31mAir Canada
Sat 9/203:55 pmYSB - AUS
1 stop19h 35mAir Canada
Deal found 7/29$1,144

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Austin to Ontario that are best for you.

Fly from

Austin

Fly to

Ontario

Route

Depart

Return

Price

AustinToronto

AUS - YYZ

AUSYYZ

Austin Bergstrom

Thu 9/4

5:45 am-8:55 pm

1 stop14h 10m

Toronto Pearson Intl

Tue 9/9

6:30 am-9:39 pm

1 stop16h 09m

$315

AustinMontreal

AUS - YUL

AUSYUL

Austin Bergstrom

Thu 10/23

4:30 pm-2:50 pm

1 stop21h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 10/27

6:45 am-11:56 pm

1 stop18h 11m

$336

AustinOttawa

AUS - YOW

AUSYOW

Austin Bergstrom

Tue 8/19

7:15 am-5:20 pm

1 stop9h 05m

Ottawa

Wed 9/3

7:00 am-8:45 pm

2 stops14h 45m

$342

AustinMontreal

AUS - YUL

AUSYUL

Austin Bergstrom

Fri 9/5

10:00 am-2:58 pm

Nonstop3h 58m

Montreal Pierre Elliott Trudeau Intl

Thu 9/11

5:00 am-10:30 am

1 stop6h 30m

$374

AustinToronto

AUS - YTZ

AUSYTZ

Austin Bergstrom

Thu 8/14

7:15 am-7:42 pm

2 stops11h 27m

Toronto Island

Sun 8/17

7:55 am-5:40 pm

1 stop10h 45m

$396

AustinOttawa

AUS - YOW

AUSYOW

Austin Bergstrom

Thu 10/16

4:50 pm-6:45 am

1 stop12h 55m

Ottawa

Sun 10/19

6:00 am-4:01 pm

1 stop11h 01m

$437

AustinSudbury

AUS - YSB

AUSYSB

Austin Bergstrom

Fri 9/12

5:45 am-11:26 am

3 stops28h 41m

Sudbury

Sat 9/20

12:10 pm-11:07 am

3 stops23h 57m

$978

AustinSudbury

AUS - YSB

AUSYSB

Austin Bergstrom

Fri 9/12

5:30 am-3:16 pm

2 stops8h 46m

Sudbury

Sat 9/20

9:40 am-9:20 pm

3 stops12h 40m

$1,132

AustinSudbury

AUS - YSB

AUSYSB

Austin Bergstrom

Fri 9/12

7:45 pm-3:16 pm

2 stops18h 31m

Sudbury

Sat 9/20

3:55 pm-10:30 am

1 stop19h 35m

$1,144

AustinToronto

AUS - YYZ

AUSYYZ

Austin Bergstrom

Tue 9/30

5:45 am-8:55 pm

1 stop14h 10m

$128

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 20 results
1
2

Best time to book a flight from Austin to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Austin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Austin to Ontario

What is the cheapest month to book a flight from Austin to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Austin to Region of Ontario (average of $243). Flying from Austin to Region of Ontario in August is currently the most expensive (average of $348). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AUS to ON?

Find hourly flight availability from Austin to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

When flying from Austin to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated July 30, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Austin to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,975 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,837 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Austin to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Austin to Ontario?

    Located just 7.5 mi from the city center, Austin Bergstrom (AUS) is the airport most travelers will use when flying to Ontario from Austin.

  • What are the cheapest airlines to fly from Austin to Region of Ontario one-way?

    The cheapest airlines for a one-way flight from Austin to Region of Ontario are WestJet ($180), Air Canada ($185), and American Airlines ($194).

  • What are the most popular routes from Austin to Region of Ontario?

    While some choose either Austin Bergstrom - Montreal Pierre Elliott Trudeau Intl or Austin Bergstrom - Toronto Island, Austin Bergstrom - Toronto Pearson Intl is the most popular route from Austin to Region of Ontario.

  • What are the most reliable airlines from Austin to Region of Ontario?

    The top 3 most reliable airlines when flying from Austin to Region of Ontario are Air Canada (69%), United Airlines (67%) and Air Canada Rouge (66%).

  • What are the cheapest flights from Austin to Region of Ontario?

    Looking at all options, your cheapest flight can be booked for $293. While the most popular route (Austin Bergstrom - Toronto Pearson Intl) can be booked for $231 on average our data indicates $1,675 when flying from Austin to Region of Ontario.

  • Can I find deals for flights from Austin to Ontario that include hotel bookings?

    Yes. In addition to deals on Austin to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Ontario.

  • Can I find deals for business class flights from Austin to Ontario?

    Yes. Cheapflights offers flight deals from Austin to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Austin to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Austin to Region of Ontario (average of $243). Flying from Austin to Region of Ontario in August is currently the most expensive (average of $348). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Austin to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Austin to Ontario

Discover the top 4 airlines that operate flights from Austin to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$215Average$588FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$253Average$720FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$261Average$745FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$390Average$651FlexibilityNo cancel feeOn-time71%

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