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$235+ Cheap flights from South Padre Island, TX to Ontario (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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — ONT
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from South Padre Island to Ontario

Cheapest flights from South Padre Island to Ontario
Explore the most affordable flight options available from South Padre Island to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This American Airlines deal was found by Cheapflights users on 2/4. 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.
Thu 4/237:41 pm
BRO
-
ONT
1 stop6h 05m
American Airlines
Mon 4/2711:59 pm
ONT
-
BRO
1 stop8h 13m
American Airlines
Deal found 2/4$314
This United Airlines deal was found by Cheapflights users on 2/4. 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.
Thu 4/235:25 pm
BRO
-
ONT
1 stop6h 25m
United Airlines
Mon 4/276:49 pm
ONT
-
BRO
2 stops14h 30m
United Airlines
Deal found 2/4$315
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/38:05 pm
BRO
-
ONT
2 stops14h 46m
American Airlines
Wed 4/1511:59 pm
ONT
-
BRO
1 stop8h 13m
American Airlines
Deal found 2/2$349
This United Airlines deal was found by Cheapflights users on 2/3. 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 6/105:25 pm
BRO
-
ONT
1 stop6h 15m
United Airlines
Wed 6/175:55 am
ONT
-
BRO
1 stop7h 43m
United Airlines
Deal found 2/3$419
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Fri 2/205:14 pm
BRO
-
ONT
1 stop6h 45m
United Airlines
Tue 2/248:00 am
ONT
-
BRO
1 stop6h 12m
United Airlines
Deal found 2/3$454
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 2/215:14 pm
BRO
-
ONT
1 stop6h 45m
United Airlines
Wed 2/258:00 am
ONT
-
BRO
1 stop8h 02m
United Airlines
Deal found 2/2$495

Find flight deals from South Padre Island to Ontario

Keep the following information in mind while searching for South Padre Island to Ontario flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$314
(American Airlines)

One-way from

$235
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$289
Provider with most accurate pricing for Brownsville South Padre Is. Intl-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Brownsville South Padre Is. Intl-Los Angeles flights.
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From South Padre Island to Ontario
Search Deals
One-way flight from South Padre Island to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in February 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from South Padre Island 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 February 4, 2026.
Use the filters below to find and compare flights from South Padre Island to Ontario that are best for you.

Fly from

South Padre Island

Fly to

Ontario

Route

Depart

Return

Price

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Thu 4/23

7:41 pm-11:46 pm

1 stop6h 05m

Ontario

Mon 4/27

11:59 pm-10:12 am

1 stop8h 13m

$314

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Thu 4/23

7:15 am-5:47 pm

2 stops12h 32m

Ontario

Mon 4/27

6:49 pm-11:19 am

2 stops14h 30m

$401

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Fri 4/3

8:05 pm-11:59 pm

1 stop5h 54m

Ontario

Wed 4/15

11:59 pm-10:12 am

1 stop8h 13m

$443

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Fri 2/20

5:14 pm-9:59 pm

1 stop6h 45m

Ontario

Tue 2/24

8:00 am-4:12 pm

1 stop6h 12m

$454

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Sat 2/21

5:14 pm-9:59 pm

1 stop6h 45m

Ontario

Wed 2/25

8:00 am-6:02 pm

1 stop8h 02m

$495

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Wed 6/10

5:25 pm-9:40 pm

1 stop6h 15m

Ontario

Wed 6/17

5:00 am-6:36 pm

2 stops11h 36m

$500

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Mon 3/23

5:25 pm-10:36 pm

1 stop7h 11m

$235

BrownsvilleOntario

BRO - ONT

BROONT

Brownsville South Padre Is. Intl

Sun 5/24

7:10 am-5:18 pm

2 stops12h 08m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Best time to book a flight from South Padre Island to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from South Padre Island 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.

Cheapflights Insights

Everything you need to know about your flight from South Padre Island to Ontario

What is the cheapest month to book a flight from South Padre Island to Ontario?

Currently, July is the cheapest month in which you can book a flight from South Padre Island to Ontario (average of $123). Flying from South Padre Island to Ontario in December is currently the most expensive (average of $253). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from South Padre Island to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from South Padre Island?

    For a flight from South Padre Island to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 inbound flights from South Padre Island per day. 1 airline has flights to Ontario from South Padre Island on a regular basis.

  • How long is the flight from South Padre Island to Ontario?

    For as low as $314, American Airlines can have you in Ontario from South Padre Island in 6h 05m. The distance between South Padre Island and Ontario is about 1328 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from South Padre Island to Ontario that include hotel bookings?

    Yes. In addition to deals on South Padre Island to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from South Padre Island to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Padre Island to Ontario.

  • Can I find deals for business class flights from South Padre Island to Ontario?

    Yes. Cheapflights offers flight deals from South Padre Island 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.

  • What is the cheapest month to book a flight from South Padre Island to Ontario?

    Currently, July is the cheapest month in which you can book a flight from South Padre Island to Ontario (average of $123). Flying from South Padre Island to Ontario in December is currently the most expensive (average of $253). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for South Padre Island to Ontario

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Top airline flying from South Padre Island to Ontario

Discover the top airline that operate flights from South Padre Island to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$192Average$413FlexibilityNo cancel feeOn-time71%

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