$195 Cheap Flights from Brownsville (BRO) to Ontario (ONT)

View $195 flight on Sat, Nov 22, 2025Opens in a new window

Popular airlines from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Brownsville to Ontario (BRO-ONT)

Prices were available within the past 7 days and start at $195 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Jan 22 - Tue, Jan 27
BRO
Brownsville
ONT
Ontario
$269 Roundtrip, found 5 days ago
$269
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Jan 22 from Brownsville to Ontario, returning Tue, Jan 27, priced at $269 found 5 days ago
American Airlines
Wed, Nov 5 - Wed, Nov 12
BRO
Brownsville
ONT
Ontario
$294 Roundtrip, found 2 days ago
$294
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Nov 5 from Brownsville to Ontario, returning Wed, Nov 12, priced at $294 found 2 days ago
American Airlines
Thu, Jan 22 - Tue, Jan 27
BRO
Brownsville
ONT
Ontario
$324 Roundtrip, found 5 days ago
$324
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Jan 22 from Brownsville to Ontario, returning Tue, Jan 27, priced at $324 found 5 days ago
United
Sat, Feb 21 - Tue, Feb 24
BRO
Brownsville
ONT
Ontario
$349 Roundtrip, found 1 day ago
$349
Roundtrip
found 1 day ago
Select United flight, departing Sat, Feb 21 from Brownsville to Ontario, returning Tue, Feb 24, priced at $349 found 1 day ago
American Airlines
Wed, Nov 5 - Wed, Nov 12
BRO
Brownsville
ONT
Ontario
$354 Roundtrip, found 8 hours ago
$354
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Wed, Nov 5 from Brownsville to Ontario, returning Wed, Nov 12, priced at $354 found 8 hours ago
United
Tue, Dec 16 - Thu, Jan 1
BRO
Brownsville
ONT
Ontario
$354 Roundtrip, found 2 days ago
$354
Roundtrip
found 2 days ago
Select United flight, departing Tue, Dec 16 from Brownsville to Ontario, returning Thu, Jan 1, priced at $354 found 2 days ago
United
Fri, Oct 31 - Wed, Nov 5
BRO
Brownsville
ONT
Ontario
$359 Roundtrip, found 3 days ago
$359
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 31 from Brownsville to Ontario, returning Wed, Nov 5, priced at $359 found 3 days ago
United
Wed, Nov 12 - Sat, Nov 15
BRO
Brownsville
ONT
Ontario
$374 Roundtrip, found 1 day ago
$374
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 12 from Brownsville to Ontario, returning Sat, Nov 15, priced at $374 found 1 day ago
United
Fri, Nov 7 - Tue, Nov 18
BRO
Brownsville
ONT
Ontario
$379 Roundtrip, found 2 days ago
$379
Roundtrip
found 2 days ago
Select United flight, departing Fri, Nov 7 from Brownsville to Ontario, returning Tue, Nov 18, priced at $379 found 2 days ago
United
Fri, Nov 7 - Wed, Nov 19
BRO
Brownsville
ONT
Ontario
$384 Roundtrip, found 2 days ago
$384
Roundtrip
found 2 days ago
Select United flight, departing Fri, Nov 7 from Brownsville to Ontario, returning Wed, Nov 19, priced at $384 found 2 days ago

Find the cheapest month to fly from Brownsville (BRO) to Ontario (ONT)

February is typically the cheapest month to fly

From $257 - $408 per traveler.

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Los Angeles - Ontario Intl. ONT. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $379
ONT
Los Angeles - Ontario Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $379

Frequently asked questions

How much does a flight from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Lock in a cheap one-way flight from $195 or cheap return flight from $269 from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT)?
January is the most affordable month to fly from BRO to ONT. Traveling during an off-peak travel window is often the key to finding better fares.
What is the cheapest airline that flies from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from BRO to ONT. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT)?
There aren't any daily direct flights available from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from BRO to ONT?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT)?
Choose a flight from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT) that takes off before 3 PM to reduce the risk of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Booking your flight from BRO to ONT just before your journey is typically more expensive. However, if you're flexible with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a BRO to ONT flight and hotel package?
You can save money by booking a BRO to ONT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your ideal accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Brownsville-South Padre Island Intl. Airport (BRO) to Los Angeles - Ontario Intl. Airport (ONT)?
Generally, it's possible to cancel or reschedule your BRO to ONT flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Brownsville-South Padre Island Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines, United
Roundtrip price
$268
Distance
1328 mi

Book with confidence

Brownsville to Ontario Flights

The cheapest times to fly from Brownsville to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Brownsville to Ontario are during the month of January. You can find some of the cheapest flights from Brownsville to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Brownsville to Ontario

Sunday is one of the best days to book for cheap flights from Brownsville to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Brownsville to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Brownsville to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $195 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Brownsville to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Brownsville to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Brownsville to Ontario Flights

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*Available to One Key members.