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$53+ Cheap flights from Austin to Ontario (AUS - ONT)

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — ONT
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Austin Bergstrom to Ontario are usually found in September or January, booked 29 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Austin to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

December

Cheapest in

September

Round-trip from

$108
(Frontier)

One-way from

$53
(Cheapflightsfares)
Provider with most accurate pricing for Austin Bergstrom-Ontario flight deals.
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Provider most trusted by Cheapflights users for Austin Bergstrom-Ontario flights.
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High demand for flights, 28% potential price rise
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Best time to find cheap flights, 24% potential price drop
Search Deals
From Austin Bergstrom to Ontario
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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 November 20, 2024.

This Frontier deal was found by Cheapflights users on 11/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/159:43 pmAUS - ONT
1 stop11h 31mFrontier
Tue 12/2410:39 pmONT - AUS
1 stop15h 40mFrontier
Deal found 11/20$123
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/102:27 pmAUS - ONT
1 stop6h 00mAmerican Airlines
Tue 12/174:25 pmONT - AUS
1 stop5h 19mAmerican Airlines
Deal found 11/19$218
This Southwest deal was found by Cheapflights users on 11/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/134:20 pmAUS - ONT
Nonstop3h 15mSouthwest
Mon 12/169:45 amONT - AUS
Nonstop2h 40mSouthwest
Deal found 11/20$333
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Wed 12/115:45 pmAUS - ONT
1 stop5h 57mUnited Airlines
Wed 12/185:05 amONT - AUS
1 stop6h 13mUnited Airlines
Deal found 11/20$336
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/107:59 pmAUS - ONT
2 stops18h 59mAlaska Airlines
Tue 12/176:00 amONT - AUS
1 stop10h 59mAlaska Airlines
Deal found 11/19$364
This Travelocity deal was found by Cheapflights users on 11/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/97:59 pmAUS - ONT
2 stops18h 59mMultiple Airlines
Thu 12/1212:38 pmONT - AUS
1 stop6h 05mMultiple Airlines
Deal found 11/20$366
This Delta deal was found by Cheapflights users on 11/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/56:20 pmAUS - ONT
1 stop7h 33mDelta
Wed 12/111:25 pmONT - AUS
1 stop5h 47mDelta
Deal found 11/20$384

Find flights from Austin to Ontario within your budget

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Tue 1/28

4:14 pm-11:47 pm

1 stop9h 33m

Ontario

Thu 2/6

6:45 am-7:23 pm

1 stop10h 38m

$108

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Thu 1/16

5:32 pm-11:58 pm

1 stop8h 26m

Ontario

Tue 1/21

12:48 pm-11:01 pm

2 stops8h 13m

$163

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Mon 2/3

7:30 am-3:11 pm

1 stop9h 41m

Ontario

Fri 2/21

7:00 am-6:18 pm

1 stop9h 18m

$218

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Tue 2/4

6:50 pm-11:53 pm

1 stop7h 03m

Ontario

Sat 2/22

6:00 am-1:38 pm

1 stop5h 38m

$281

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Thu 1/30

4:00 pm-5:20 pm

Nonstop3h 20m

Ontario

Mon 2/3

10:35 am-3:15 pm

Nonstop2h 40m

$288

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Thu 1/16

11:24 am-8:29 pm

2 stops11h 05m

Ontario

Tue 1/21

6:00 am-3:26 pm

1 stop7h 26m

$366

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Mon 12/9

1:30 pm-8:00 pm

1 stop8h 30m

Ontario

Thu 12/12

12:38 pm-8:43 pm

1 stop6h 05m

$391

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Sat 1/11

4:05 pm-7:06 pm

1 stop5h 01m

$53

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Thu 2/20

5:53 pm-11:58 pm

1 stop8h 05m

$99

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Tue 1/21

12:45 pm-6:24 pm

2 stops7h 39m

$114

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 13 results
1
2

Compare providers for flights from Austin to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to Ontario in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Austin-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Travel insights for flights from Austin to Ontario

Get recent, data-driven insights about flights from Austin to Ontario including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Austin to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Austin to Ontario. Price data was last updated on November 15, 2024.

To ensure you get the cheapest price possible for a flight from Austin to Ontario, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Austin to Ontario (average of $236). Flying from Austin to Ontario in December is currently the most expensive (average of $298). 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 ONT?

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 November 20, 2024.

When flying from Austin to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 18% versus a flight at noon.

What is the cheapest day to fly from Austin to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Austin to Ontario. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Austin to Ontario flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 November 20, 2024.
To help decide which airline to fly from Austin to Ontario, see what other customers have to say about Frontier, American Airlines and Southwest. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

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 are the cheapest airlines flying from Austin to Ontario round-trip?

    According to our current data, Frontier ($108), American Airlines ($163), and Alaska Airlines ($218) offers the cheapest pricing from Austin to Ontario. These flights start at 68% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $53. Alaska Airlines flights start at $99 while deals on American Airlines start at $114 one-way.

  • What are the cheapest flights from Austin to Ontario?

    The cheapest flight price from Austin to Ontario is $224. On average you can expect to pay $365. The most popular route, (Austin Bergstrom - Ontario), can usually be booked for $108.

  • 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 Ontario?

    Currently, September is the cheapest month in which you can book a flight from Austin to Ontario (average of $236). Flying from Austin to Ontario in December is currently the most expensive (average of $298). 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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Top 6 airlines flying from Austin to Ontario

Discover the top 6 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$42Average$140FlexibilityNo cancel feeOn-time65%
FrontierCheapest$108Average$233FlexibilityNo cancel feeOn-time62%
DeltaCheapest$158Average$306FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$191Average$402FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$230Average$436FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$295Average$446FlexibilityNo cancel feeOn-time69%
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