Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Brownsville from $235

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Brownsville departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Brownsville

Cheap round-trip flights

United Airlines Logo
6:02 am - 3:38 pmONT-BRO
7h 36m1 stop
United Airlines Logo
5:25 pm - 9:21 pmBRO-ONT
5h 56m1 stop
$374United Airlines
Find Deal
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
1:00 pm - 11:03 pmONT-BRO
8h 03m2 stops
United Airlines Logo
5:25 pm - 9:21 pmBRO-ONT
5h 56m1 stop
$379United Airlines
Find Deal
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
1:00 pm - 11:03 pmONT-BRO
8h 03m2 stops
United Airlines Logo
2:18 pm - 10:45 pmBRO-ONT
10h 27m2 stops
$384United Airlines
Find Deal
Sat, Mar 7 - Wed, Mar 11
American Airlines Logo
6:00 am - 2:20 pmONT-BRO
6h 20m1 stop
American Airlines Logo
5:49 am - 9:29 amBRO-ONT
5h 40m1 stop
$469American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
10:30 am - 10:24 pmONT-BRO
9h 54m2 stops
American Airlines Logo
5:49 am - 9:29 amBRO-ONT
5h 40m1 stop
$474American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
1:00 pm - 11:03 pmONT-BRO
8h 03m2 stops
United Airlines Logo
12:07 pm - 10:45 pmBRO-ONT
12h 38m2 stops
$479United Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
1:15 pm - 11:33 pmONT-BRO
8h 18m2 stops
United Airlines Logo
5:15 pm - 9:24 pmBRO-ONT
6h 09m1 stop
$494United Airlines
Find Deal
Thu, Oct 9 - Thu, Oct 16
United Airlines Logo
6:00 am - 4:00 pmONT-BRO
8h 00m1 stop
United Airlines Logo
12:10 pm - 9:24 pmBRO-ONT
11h 14m1 stop
$749United Airlines
Find Deal
Thu, Oct 9 - Thu, Oct 16
United Airlines Logo
6:00 am - 7:36 pmONT-BRO
11h 36m1 stop
United Airlines Logo
12:15 pm - 9:49 pmBRO-ONT
11h 34m1 stop
$1,079United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26

American Airlines flights from Ontario to Brownsville

Our best American Airlines deals on Ontario to Brownsville flight tickets
American Airlines
Mar 10
ONT6:00 amOntario
6h 20m
1 stop
BRO2:20 pmBrownsville South Padre Is. Intl
Mar 11
BRO5:49 amBrownsville South Padre Is. Intl
5h 40m
1 stop
ONT9:29 amOntario
$469
Find similar
American Airlines
Mar 10
ONT10:30 amOntario
9h 54m
2 stops
BRO10:24 pmBrownsville South Padre Is. Intl
Mar 11
BRO5:49 amBrownsville South Padre Is. Intl
5h 40m
1 stop
ONT9:29 amOntario
$474
Find similar

United Airlines flights from Ontario to Brownsville

Our best United Airlines deals on Ontario to Brownsville flight tickets
United Airlines
Mar 7
ONT6:02 amOntario
7h 36m
1 stop
BRO3:38 pmBrownsville South Padre Is. Intl
Mar 11
BRO5:25 pmBrownsville South Padre Is. Intl
5h 56m
1 stop
ONT9:21 pmOntario
$374
Find similar
United Airlines
Mar 7
ONT1:00 pmOntario
8h 03m
2 stops
BRO11:03 pmBrownsville South Padre Is. Intl
Mar 11
BRO5:25 pmBrownsville South Padre Is. Intl
5h 56m
1 stop
ONT9:21 pmOntario
$379
Find similar
United Airlines
Mar 7
ONT1:00 pmOntario
8h 03m
2 stops
BRO11:03 pmBrownsville South Padre Is. Intl
Mar 11
BRO2:18 pmBrownsville South Padre Is. Intl
10h 27m
2 stops
ONT10:45 pmOntario
$384
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Brownsville 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Ontario to Brownsville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 3/7

6:02 am-3:38 pm

1 stop7h 36m

Brownsville South Padre Is. Intl

Wed 3/11

5:25 pm-9:21 pm

1 stop5h 56m

$374

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 3/7

1:00 pm-11:03 pm

2 stops8h 03m

Brownsville South Padre Is. Intl

Wed 3/11

5:25 pm-9:21 pm

1 stop5h 56m

$379

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 3/7

1:00 pm-11:03 pm

2 stops8h 03m

Brownsville South Padre Is. Intl

Wed 3/11

2:18 pm-10:45 pm

2 stops10h 27m

$384

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Tue 3/10

6:00 am-2:20 pm

1 stop6h 20m

Brownsville South Padre Is. Intl

Wed 3/11

5:49 am-9:29 am

1 stop5h 40m

$469

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Tue 3/10

10:30 am-10:24 pm

2 stops9h 54m

Brownsville South Padre Is. Intl

Wed 3/11

5:49 am-9:29 am

1 stop5h 40m

$474

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Tue 3/10

1:00 pm-11:03 pm

2 stops8h 03m

Brownsville South Padre Is. Intl

Wed 3/11

12:07 pm-10:45 pm

2 stops12h 38m

$479

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Thu 10/9

1:15 pm-11:33 pm

2 stops8h 18m

Brownsville South Padre Is. Intl

Thu 10/16

5:15 pm-9:24 pm

1 stop6h 09m

$494

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Thu 10/9

6:00 am-4:00 pm

1 stop8h 00m

Brownsville South Padre Is. Intl

Thu 10/16

12:10 pm-9:24 pm

1 stop11h 14m

$749

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Fri 10/24

6:00 am-7:36 pm

1 stop11h 36m

Brownsville South Padre Is. Intl

Sun 10/26

12:15 pm-9:49 pm

1 stop11h 34m

$1,079

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Tue 10/14

6:00 am-4:00 pm

1 stop8h 00m

$235

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Brownsville from

How to get the cheapest flight ticket from Ontario to Brownsville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Brownsville?

The cheapest day to depart from Ontario to Brownsville is on a Sunday. Travelers who choose to depart for Brownsville on a Sunday will often find tickets for as low as $421. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Brownsville on Thursday is $636.

What is the cheapest time of day to depart on your flight to Brownsville?

Flying to Brownsville from Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as $357 when looking at flights departing at noon. Flights to Brownsville are more costly in the evening, with an average ticket price of $528. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Ontario to Brownsville

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Brownsville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Brownsville (ONT to BRO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Brownsville

Direct flights

None
There are no direct flights from Ontario to Brownsville. There are no popular flight routes from Ontario to Brownsville.
Search flight deals

  • How far is Ontario to Brownsville South Padre Is. Intl by plane?

    The straight-line distance from Ontario to Brownsville South Padre Is. Intl is 1327.2 mi. By plane, this route typically takes 6h 20m.

  • When did momondo last update prices for flights from Ontario Airport to Brownsville South Padre Is. Intl Airport?

    Prices for flights from Ontario Airport to Brownsville South Padre Is. Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario Airport to Brownsville South Padre Is. Intl Airport?

  • How old do you have to be to fly from Ontario Airport to Brownsville South Padre Is. Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Brownsville South Padre Is. Intl Airport.

  • What documentation or ID do you need to fly to Brownsville South Padre Is. Intl Airport?

    The required travel and health documents for your Brownsville South Padre Is. Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Brownsville South Padre Is. Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Ontario to Brownsville?

Best airlines flying from Ontario to Brownsville

Compare and see reviews for airlines that fly from Ontario to Brownsville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $268Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Brownsville?

Book flights to Brownsville if you plan to visit one of these locations
South Padre Island

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Brownsville?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Brownsville from Ontario.

Can I find flights from Ontario to Brownsville with flexible booking policies on momondo?

All flight searches from Ontario to Brownsville on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Brownsville?

Once all potential Ontario to Brownsville flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Brownsville right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Brownsville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Brownsville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 10/17
Fri 10/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States