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Ontario

$270+ Cheap flights from Brownsville to Ontario (BRO - 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — ONT
janv. 15 — janv. 221
jeu. 1/15
jeu. 1/22
1 adult, Economy
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Cheap flight deals from Brownsville to Ontario

Cheapest flights from Brownsville to Ontario
Explore the most affordable flight options available from Brownsville to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on décembre 16, 2025.

This American Airlines deal was found by Cheapflights users on 12/15. 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.
ven. 12/195:35 amBRO - ONT
1 stop6h 20mAmerican Airlines
dim. 12/2111:59 pmONT - BRO
1 stop8h 00mAmerican Airlines
Deal found 12/15$469
This United Airlines deal was found by Cheapflights users on 12/14. 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.
lun. 12/155:25 pmBRO - ONT
1 stop6h 24mUnited Airlines
mar. 12/166:00 amONT - BRO
1 stop8h 05mUnited Airlines
Deal found 12/14$679
This United Airlines deal was found by Cheapflights users on 12/15. 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.
mar. 12/1612:15 pmBRO - ONT
2 stops12h 34mUnited Airlines
jeu. 12/186:04 amONT - BRO
1 stop8h 03mUnited Airlines
Deal found 12/15$684
This United Airlines deal was found by Cheapflights users on 12/14. 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.
lun. 12/155:25 pmBRO - ONT
1 stop6h 24mUnited Airlines
dim. 12/216:04 amONT - BRO
1 stop8h 03mUnited Airlines
Deal found 12/14$694
This United Airlines deal was found by Cheapflights users on 12/14. 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.
mar. 12/1612:15 pmBRO - ONT
2 stops12h 34mUnited Airlines
dim. 12/216:04 amONT - BRO
1 stop8h 03mUnited Airlines
Deal found 12/14$699
This United Airlines deal was found by Cheapflights users on 12/16. 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.
mer. 12/245:10 amBRO - ONT
2 stops9h 28mUnited Airlines
dim. 12/286:04 amONT - BRO
1 stop8h 03mUnited Airlines
Deal found 12/16$718
This United Airlines deal was found by Cheapflights users on 12/14. 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.
mar. 12/234:55 pmBRO - ONT
1 stop6h 57mUnited Airlines
jeu. 1/18:11 amONT - BRO
2 stops13h 26mUnited Airlines
Deal found 12/14$729
This United Airlines deal was found by Cheapflights users on 12/14. 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.
lun. 12/155:25 pmBRO - ONT
1 stop6h 24mUnited Airlines
sam. 12/206:04 amONT - BRO
1 stop8h 03mUnited Airlines
Deal found 12/14$759
This United Airlines deal was found by Cheapflights users on 12/14. 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.
lun. 12/1512:15 pmBRO - ONT
2 stops12h 34mUnited Airlines
ven. 12/196:04 amONT - BRO
1 stop8h 03mUnited Airlines
Deal found 12/14$764

Find flight deals from Brownsville to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Brownsville (BRO) 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 décembre 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$314
(American Airlines)

One-way from

$270
(United Airlines)

Popular in

December

Cheapest in

February

Average price

$627
Provider with most accurate pricing for Brownsville South Padre Is. Intl-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Brownsville South Padre Is. Intl-Ontario flights.
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From Brownsville South Padre Is. Intl to Ontario
Search Deals
One-way flight from Brownsville South Padre Is. Intl to Ontario
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Brownsville 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 décembre 16, 2025.
Use the filters below to find and compare flights from Brownsville to Ontario that are best for you.

Fly from

Brownsville

Fly to

Ontario

Route

Depart

Return

Price

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

mer. 4/15

5:25 pm-10:11 pm

1 stop6h 46m

Ontario

sam. 4/18

6:00 am-4:23 pm

1 stop8h 23m

$369

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

sam. 4/11

5:25 pm-10:11 pm

1 stop6h 46m

Ontario

dim. 4/19

6:00 am-4:23 pm

1 stop8h 23m

$369

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

sam. 4/11

5:25 pm-10:11 pm

1 stop6h 46m

Ontario

ven. 4/17

6:00 am-4:23 pm

1 stop8h 23m

$369

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

sam. 4/11

5:25 pm-10:11 pm

1 stop6h 46m

Ontario

sam. 4/18

6:00 am-4:23 pm

1 stop8h 23m

$369

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

mar. 4/14

5:25 pm-10:11 pm

1 stop6h 46m

Ontario

dim. 4/19

6:00 am-4:23 pm

1 stop8h 23m

$369

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

sam. 5/9

5:25 pm-9:50 pm

1 stop6h 25m

Ontario

mar. 5/12

6:05 am-3:38 pm

1 stop7h 33m

$369

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

ven. 4/10

5:25 pm-10:11 pm

1 stop6h 46m

Ontario

sam. 4/18

6:00 am-4:23 pm

1 stop8h 23m

$369

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

mer. 4/15

5:25 pm-10:11 pm

1 stop6h 46m

Ontario

dim. 4/19

6:00 am-4:23 pm

1 stop8h 23m

$369

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

ven. 4/10

5:25 pm-10:11 pm

1 stop6h 46m

Ontario

ven. 4/17

6:00 am-4:23 pm

1 stop8h 23m

$369

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

ven. 4/10

5:25 pm-10:11 pm

1 stop6h 46m

Ontario

dim. 4/19

6:00 am-4:23 pm

1 stop8h 23m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 18 results
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Compare providers for flights from Brownsville 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 Brownsville to Ontario in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust 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 Brownsville-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Brownsville-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Brownsville-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Brownsville-Ontario flights, Cheapflights users trust eDreams the most. eDreams 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 Brownsville-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 Brownsville to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Brownsville 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 Brownsville to Ontario

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

Currently, July is the cheapest month in which you can book a flight from Brownsville to Ontario (average of $122). Flying from Brownsville to Ontario in December is currently the most expensive (average of $263). 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.

Related info for your journey

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

  • How long is the flight from Brownsville to Ontario?

    For as low as $369, United Airlines can have you in Ontario from Brownsville in 6h 46m. The distance between Brownsville and Ontario is about 1328 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Brownsville 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 Brownsville to Ontario?

    Currently, July is the cheapest month in which you can book a flight from Brownsville to Ontario (average of $122). Flying from Brownsville to Ontario in December is currently the most expensive (average of $263). 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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