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Cheap flights from Ontario to Brownsville from $225

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 5/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Brownsville

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:45 am - 3:57 pm
ONT
-
BRO
8h 12m
1 stop
United Airlines Logo
4:39 pm - 9:59 pm
BRO
-
ONT
7h 20m
1 stop
$374United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
7:13 pm - 11:22 am
ONT
-
BRO
14h 09m
2 stops
United Airlines Logo
4:39 pm - 9:59 pm
BRO
-
ONT
7h 20m
1 stop
$379United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
5:45 am - 3:57 pm
ONT
-
BRO
8h 12m
1 stop
United Airlines Logo
4:44 pm - 9:55 pm
BRO
-
ONT
7h 11m
1 stop
$399United Airlines
Sat, May 23 - Tue, May 26
United Airlines Logo
6:00 am - 4:24 pm
ONT
-
BRO
8h 24m
1 stop
United Airlines Logo
5:17 pm - 9:58 pm
BRO
-
ONT
6h 41m
1 stop
$427United Airlines
Sat, May 9 - Sat, May 16
United Airlines Logo
6:00 am - 6:28 pm
ONT
-
BRO
10h 28m
2 stops
United Airlines Logo
5:17 pm - 9:58 pm
BRO
-
ONT
6h 41m
1 stop
$432United Airlines
Sat, May 9 - Sat, May 16
United Airlines Logo
5:00 am - 3:57 pm
ONT
-
BRO
8h 57m
2 stops
United Airlines Logo
4:44 pm - 9:55 pm
BRO
-
ONT
7h 11m
1 stop
$482United Airlines
Sat, May 23 - Tue, May 26
United Airlines Logo
7:13 pm - 11:22 am
ONT
-
BRO
14h 09m
2 stops
United Airlines Logo
12:00 pm - 8:52 pm
BRO
-
ONT
10h 52m
2 stops
$484United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
5:45 am - 3:57 pm
ONT
-
BRO
8h 12m
1 stop
United Airlines Logo
4:44 pm - 9:55 pm
BRO
-
ONT
7h 11m
1 stop
$524United Airlines
Sun, Jun 21 - Thu, Jun 25
United Airlines Logo
7:13 pm - 11:22 am
ONT
-
BRO
14h 09m
2 stops
United Airlines Logo
12:00 pm - 8:52 pm
BRO
-
ONT
10h 52m
2 stops
$555United Airlines
Sat, Aug 29 - Wed, Sep 2
American Airlines Logo
6:00 am - 2:20 pm
ONT
-
BRO
6h 20m
1 stop
American Airlines Logo
7:41 pm - 11:46 pm
BRO
-
ONT
6h 05m
1 stop
$599American Airlines
Sun, Apr 12 - Thu, Apr 16

United Airlines flights from Ontario to Brownsville

Our best United Airlines deals on Ontario to Brownsville flight tickets
United Airlines
Aug 29
ONT5:45 amOntario
8h 12m
1 stop
BRO3:57 pmBrownsville South Padre Is. Intl
Sep 2
BRO4:39 pmBrownsville South Padre Is. Intl
7h 20m
1 stop
ONT9:59 pmOntario
$374
United Airlines
Aug 29
ONT7:13 pmOntario
14h 09m
2 stops
BRO11:22 amBrownsville South Padre Is. Intl
Sep 2
BRO4:39 pmBrownsville South Padre Is. Intl
7h 20m
1 stop
ONT9:59 pmOntario
$379
United Airlines
May 23
ONT5:45 amOntario
8h 12m
1 stop
BRO3:57 pmBrownsville South Padre Is. Intl
May 26
BRO4:44 pmBrownsville South Padre Is. Intl
7h 11m
1 stop
ONT9:55 pmOntario
$399

American Airlines flights from Ontario to Brownsville

Our best American Airlines deals on Ontario to Brownsville flight tickets
American Airlines
Apr 12
ONT6:00 amOntario
6h 20m
1 stop
BRO2:20 pmBrownsville South Padre Is. Intl
Apr 16
BRO7:41 pmBrownsville South Padre Is. Intl
6h 05m
1 stop
ONT11:46 pmOntario
$599
American Airlines
Apr 12
ONT7:35 pmOntario
12h 37m
2 stops
BRO10:12 amBrownsville South Padre Is. Intl
Apr 16
BRO2:50 pmBrownsville South Padre Is. Intl
5h 47m
1 stop
ONT6:37 pmOntario
$604

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 March 28, 2026.
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

Cheapest round-trip

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 8/29

5:45 am-3:57 pm

1 stop8h 12m

Brownsville South Padre Is. Intl

Wed 9/2

4:39 pm-9:59 pm

1 stop7h 20m

$374

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 8/29

7:13 pm-11:22 am

2 stops14h 09m

Brownsville South Padre Is. Intl

Wed 9/2

4:39 pm-9:59 pm

1 stop7h 20m

$379

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 5/23

5:45 am-3:57 pm

1 stop8h 12m

Brownsville South Padre Is. Intl

Tue 5/26

4:44 pm-9:55 pm

1 stop7h 11m

$399

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 5/9

6:00 am-4:24 pm

1 stop8h 24m

Brownsville South Padre Is. Intl

Sat 5/16

5:17 pm-9:58 pm

1 stop6h 41m

$427

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 5/9

6:00 am-6:28 pm

2 stops10h 28m

Brownsville South Padre Is. Intl

Sat 5/16

5:17 pm-9:58 pm

1 stop6h 41m

$432

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 5/23

5:00 am-3:57 pm

2 stops8h 57m

Brownsville South Padre Is. Intl

Tue 5/26

4:44 pm-9:55 pm

1 stop7h 11m

$482

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 8/29

7:13 pm-11:22 am

2 stops14h 09m

Brownsville South Padre Is. Intl

Wed 9/2

12:00 pm-8:52 pm

2 stops10h 52m

$484

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sun 6/21

5:45 am-3:57 pm

1 stop8h 12m

Brownsville South Padre Is. Intl

Thu 6/25

4:44 pm-9:55 pm

1 stop7h 11m

$524

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sat 8/29

7:13 pm-11:22 am

2 stops14h 09m

Brownsville South Padre Is. Intl

Wed 9/2

12:00 pm-8:52 pm

2 stops10h 52m

$555
Quickest round-trip

OntarioBrownsville

ONT - BRO

ONTBRO

Ontario

Sun 4/12

6:00 am-2:20 pm

1 stop6h 20m

Brownsville South Padre Is. Intl

Thu 4/16

7:41 pm-11:46 pm

1 stop6h 05m

$599

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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 airline that flies from Ontario to Brownsville South Padre Is. Intl?

United Airlines is the most popular carrier operating from Ontario to Brownsville South Padre Is. Intl

What airlines fly to Brownsville?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Brownsville from Ontario according to our data. American Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Brownsville. Keep in mind that there are 5 different airlines that fly to Brownsville on a routine basis, so you have a few additional options to choose from.

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

Fastest flight time

8h 12m

Direct flights

None
The fastest flight from Ontario to Brownsville takes 8h 12m
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 8h 12m.

  • 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 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.

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.

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