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$54+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — ONT
Dec 10 — Dec 171
Tue 12/10
Tue 12/17
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 Saturday 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 December 5, 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

$54
(Frontier)
Provider with most accurate pricing for Austin Bergstrom-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Ontario flights.
Search Deals
High demand for flights, 23% potential price rise
Search Deals
Best time to find cheap flights, 23% 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 December 5, 2024.

This CheapOair deal was found by Cheapflights users on 12/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1810:57 pmAUS - ONT
1 stop11h 09mFrontier
Thu 1/97:59 amONT - AUS
1 stop10h 50mFrontier
Deal found 12/4$138
This Southwest deal was found by Cheapflights users on 12/4. 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.
Wed 12/187:00 amAUS - ONT
1 stop5h 40mSouthwest
Thu 1/910:35 amONT - AUS
Nonstop2h 40mSouthwest
Deal found 12/4$367
This Orbitz deal was found by Cheapflights users on 12/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/235:19 pmAUS - ONT
1 stop8h 40mMultiple Airlines
Mon 1/67:00 amONT - AUS
2 stops14h 22mMultiple Airlines
Deal found 12/4$381
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/255:47 pmAUS - ONT
1 stop6h 42mUnited Airlines
Tue 1/76:00 amONT - AUS
1 stop7h 26mUnited Airlines
Deal found 12/4$422
This American Airlines deal was found by Cheapflights users on 12/4. 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 12/171:00 pmAUS - ONT
2 stops7h 27mAmerican Airlines
Fri 12/2012:46 pmONT - AUS
1 stop5h 20mAmerican Airlines
Deal found 12/4$439
This Alaska Airlines deal was found by Cheapflights users on 12/4. 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.
Wed 12/186:30 amAUS - ONT
2 stops29h 15mAlaska Airlines
Thu 1/96:00 amONT - AUS
1 stop9h 33mAlaska Airlines
Deal found 12/4$474

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 2,924,186 searches. Data last updated December 5, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Thu 1/9

9:39 pm-7:14 am

1 stop11h 35m

Ontario

Wed 1/15

7:45 am-3:09 pm

1 stop5h 24m

$108

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Thu 1/9

7:30 am-3:11 pm

1 stop9h 41m

Ontario

Wed 1/15

7:45 am-3:09 pm

1 stop5h 24m

$167

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Sat 1/18

12:45 pm-7:31 pm

2 stops8h 46m

Ontario

Wed 1/22

6:10 am-1:46 pm

1 stop5h 36m

$221

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Fri 1/10

5:30 am-11:50 am

1 stop8h 20m

Ontario

Sat 1/11

6:00 am-5:13 pm

1 stop9h 13m

$236

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Thu 1/30

3:48 pm-10:13 pm

1 stop8h 25m

Ontario

Tue 2/4

5:44 pm-5:33 pm

2 stops21h 49m

$264

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Thu 1/9

11:24 am-8:29 pm

2 stops11h 05m

Ontario

Wed 1/15

1:45 pm-8:59 pm

1 stop5h 14m

$311

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Wed 12/18

7:00 am-10:40 am

1 stop5h 40m

Ontario

Thu 1/9

10:35 am-3:15 pm

Nonstop2h 40m

$367

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Sat 1/18

4:05 pm-7:09 pm

1 stop5h 04m

$54

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Wed 1/8

4:22 pm-9:57 pm

1 stop7h 35m

$108

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Sat 1/11

2:40 pm-7:31 pm

2 stops6h 51m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 13 results
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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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars

*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 22, 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 December 5, 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 17% 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 December 1, 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 December 5, 2024.
To help decide which airline to fly from Austin to Ontario, see what other customers have to say about United Airlines, Frontier and American Airlines. 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
4,934 reviews

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Reviews

1 / 10

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

Southwest
8.1
Very good
4,934 reviews
Southwest
8.1
Very good
4,934 reviews

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,519 reviews
Southwest
8.1
Very good
4,934 reviews

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Reviews

1 / 10

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

Delta
8.0
Very good
8,682 reviews
Southwest
8.1
Very good
4,934 reviews

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Reviews

1 / 10

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

United Airlines
7.4
Good
9,134 reviews
Southwest
8.1
Very good
4,934 reviews

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

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
4,934 reviews

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

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 ($221), and Delta ($236) 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 $54. American Airlines flights start at $113 while deals on Alaska Airlines start at $118 one-way.

  • What are the cheapest flights from Austin to Ontario?

    The cheapest flight price from Austin to Ontario is $223. On average you can expect to pay $346. 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.

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