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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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — ONT
Jun 3 — Jun 101
Wed 6/3
Wed 6/10
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 May 4, 2026.

This American Airlines deal was found by Cheapflights users on 5/4. 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 6/96:42 pm
BRO
-
ONT
1 stop5h 57m
American Airlines
Tue 6/167:13 pm
ONT
-
BRO
2 stops13h 01m
American Airlines
Deal found 5/4$374
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 8/294:39 pm
BRO
-
ONT
1 stop7h 20m
United Airlines
Tue 9/15:45 am
ONT
-
BRO
1 stop8h 12m
United Airlines
Deal found 4/29$419
This United Airlines deal was found by Cheapflights users on 5/2. 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.
Thu 8/274:39 pm
BRO
-
ONT
1 stop7h 20m
United Airlines
Sat 8/295:45 am
ONT
-
BRO
1 stop8h 12m
United Airlines
Deal found 5/2$444
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Thu 8/134:39 pm
BRO
-
ONT
1 stop7h 20m
United Airlines
Mon 8/177:13 pm
ONT
-
BRO
2 stops14h 09m
United Airlines
Deal found 5/1$484
This United Airlines deal was found by Cheapflights users on 5/2. 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 8/284:39 pm
BRO
-
ONT
1 stop7h 20m
United Airlines
Tue 9/15:45 am
ONT
-
BRO
1 stop8h 12m
United Airlines
Deal found 5/2$507
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:39 pm
BRO
-
ONT
1 stop7h 20m
United Airlines
Mon 9/77:13 pm
ONT
-
BRO
2 stops14h 09m
United Airlines
Deal found 4/30$512

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 May 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$374
(American Airlines)

One-way from

$270
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$503
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.
Search Deals
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. 13% potential increase in price ($65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 4, 2026.
Use the filters below to find and compare flights from Brownsville to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Sat 8/29

4:39 pm-9:59 pm

1 stop7h 20m

Ontario

Tue 9/1

5:45 am-3:57 pm

1 stop8h 12m

$419

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Thu 8/27

4:39 pm-9:59 pm

1 stop7h 20m

Ontario

Sat 8/29

5:45 am-3:57 pm

1 stop8h 12m

$444

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Thu 8/13

9:20 am-8:04 pm

2 stops12h 44m

Ontario

Mon 8/17

7:13 pm-11:22 am

2 stops14h 09m

$455

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Mon 8/31

4:39 pm-9:59 pm

1 stop7h 20m

Ontario

Mon 9/7

7:13 pm-11:22 am

2 stops14h 09m

$512
Cheapest one-way
Quickest one-way

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Wed 7/29

4:44 pm-9:55 pm

1 stop7h 11m

$270

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Mon 6/22

4:44 pm-9:55 pm

1 stop7h 11m

$270

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Mon 6/1

4:44 pm-9:55 pm

1 stop7h 11m

$270

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Fri 5/29

4:44 pm-9:55 pm

1 stop7h 11m

$270

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Thu 6/25

4:44 pm-9:55 pm

1 stop7h 11m

$325

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Tue 5/26

7:20 am-9:55 pm

1 stop16h 35m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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 May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Brownsville-Ontario flight deals on Cheapflights vs. FlightHub >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 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 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.

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 $374, American Airlines can have you in Ontario from Brownsville in 5h 57m. The distance between Brownsville and Ontario is about 1328 mi. This flight may include one or multiple stops.

  • 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.

See more FAQs

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