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Ontario

$357+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — ONT
Jul 8 — Jul 151
Wed 7/8
Wed 7/15
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 June 8, 2026.

This United Airlines deal was found by Cheapflights users on 6/3. 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 9/169:20 am
BRO
-
ONT
2 stops12h 41m
United Airlines
Sat 9/266:00 am
ONT
-
BRO
1 stop7h 38m
United Airlines
Deal found 6/3$424
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 6/234:44 pm
BRO
-
ONT
1 stop7h 11m
United Airlines
Mon 6/295:45 am
ONT
-
BRO
1 stop8h 12m
United Airlines
Deal found 6/7$464
This United Airlines deal was found by Cheapflights users on 6/4. 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 7/294:44 pm
BRO
-
ONT
1 stop7h 11m
United Airlines
Tue 8/119:15 am
ONT
-
BRO
1 stop6h 58m
United Airlines
Deal found 6/4$484
This United Airlines deal was found by Cheapflights users on 6/3. 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 9/239:20 am
BRO
-
ONT
2 stops12h 41m
United Airlines
Sat 9/265:00 am
ONT
-
BRO
2 stops11h 08m
United Airlines
Deal found 6/3$495
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 6/234:44 pm
BRO
-
ONT
1 stop7h 11m
United Airlines
Sat 6/275:45 am
ONT
-
BRO
1 stop8h 12m
United Airlines
Deal found 6/7$499
This United Airlines deal was found by Cheapflights users on 6/4. 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 7/294:44 pm
BRO
-
ONT
1 stop7h 11m
United Airlines
Wed 8/125:00 am
ONT
-
BRO
2 stops11h 13m
United Airlines
Deal found 6/4$515
This United Airlines deal was found by Cheapflights users on 6/6. 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 6/134:44 pm
BRO
-
ONT
1 stop7h 11m
United Airlines
Fri 6/195:45 am
ONT
-
BRO
1 stop8h 12m
United Airlines
Deal found 6/6$569

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 June 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$424
(United Airlines)

One-way from

$357
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$433
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. 14% potential increase in price ($73 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 June 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 June 8, 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

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Wed 9/23

7:15 am-8:01 pm

2 stops14h 46m

Ontario

Sat 9/26

6:00 am-3:38 pm

1 stop7h 38m

$424
Quickest round-trip

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Wed 7/29

4:44 pm-9:55 pm

1 stop7h 11m

Ontario

Tue 8/11

9:15 am-6:13 pm

1 stop6h 58m

$484

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Tue 6/23

4:44 pm-9:55 pm

1 stop7h 11m

Ontario

Sat 6/27

5:45 am-3:57 pm

1 stop8h 12m

$499

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Thu 7/30

4:44 pm-9:55 pm

1 stop7h 11m

Ontario

Wed 8/12

5:00 am-6:13 pm

2 stops11h 13m

$569

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Thu 11/19

7:10 am-5:47 pm

2 stops12h 37m

Ontario

Thu 11/26

1:00 pm-11:33 pm

2 stops8h 33m

$655
Cheapest one-way

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Wed 9/30

12:07 pm-9:58 pm

1 stop11h 51m

$357

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Mon 7/20

4:44 pm-9:55 pm

1 stop7h 11m

$374

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Sat 6/20

4:44 pm-9:55 pm

1 stop7h 11m

$429

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Wed 7/22

12:10 pm-10:37 pm

2 stops12h 27m

$434

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Tue 6/16

6:42 pm-11:59 pm

1 stop7h 17m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 12 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 June.
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 $484, United Airlines can have you in Ontario from Brownsville in 7h 11m. 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.

See more FAQs

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