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$56+ Cheap flights from Ontario (ONT) to Texas

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DFW
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Ontario to Texas

Keep the following information in mind while searching for Ontario to Texas flight deals. Data was last updated September 11, 2025.

Round-trip from

$101
(Cheapflightsfares)

One-way from

$56
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$160

Good round-trip deal

$193 or less

Good one-way deal

$116 or less
From Ontario to Texas
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One-way flight from Ontario to Texas
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Highest demand for flights based on searches. 6% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ontario to Texas.
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Price to beat on a one-way flight from Ontario to Texas.
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Find flight deals from Ontario to Texas

Cheapest flights from Ontario to Texas
Explore the most affordable flight options available from Ontario to Texas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:32 pmONT - IAH
Nonstop3h 16mFrontier
Sun 10/124:24 pmIAH - ONT
Nonstop3h 25mFrontier
Deal found 9/10$105
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:28 pmONT - IAH
Nonstop3h 19mFrontier
Sun 10/55:07 pmIAH - ONT
Nonstop3h 28mFrontier
Deal found 9/10$106
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:32 pmONT - IAH
Nonstop3h 16mFrontier
Sun 10/194:24 pmIAH - ONT
Nonstop3h 25mFrontier
Deal found 9/10$107
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:28 pmONT - IAH
Nonstop3h 19mFrontier
Wed 10/811:36 amIAH - ONT
1 stop14h 14mFrontier
Deal found 9/11$120
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:28 pmONT - IAH
Nonstop3h 19mFrontier
Tue 10/76:00 amIAH - ONT
1 stop19h 50mFrontier
Deal found 9/10$124
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:18 pmONT - DFW
Nonstop3h 14mFrontier
Mon 10/610:10 amDFW - ONT
Nonstop3h 18mFrontier
Deal found 9/11$125
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:28 pmONT - IAH
Nonstop3h 19mFrontier
Mon 10/69:08 pmIAH - ONT
1 stop28h 42mFrontier
Deal found 9/10$125
This Frontier deal was found by Cheapflights users on 9/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/24:34 pmONT - DFW
Nonstop3h 12mFrontier
Thu 10/96:35 amDFW - ONT
Nonstop3h 14mFrontier
Deal found 9/11$126
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/94:17 pmONT - DFW
Nonstop3h 15mFrontier
Thu 11/139:17 amDFW - ONT
Nonstop3h 17mFrontier
Deal found 9/11$129
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:40 pmONT - DFW
1 stop22h 05mFrontier
Mon 10/136:35 amDFW - ONT
Nonstop3h 14mFrontier
Deal found 9/10$131
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:15 pmONT - DFW
Nonstop3h 10mFrontier
Sun 11/22:00 pmDFW - ONT
Nonstop3h 13mFrontier
Deal found 9/10$132
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:28 pmONT - IAH
Nonstop3h 19mFrontier
Sun 10/55:07 pmIAH - ONT
Nonstop3h 28mFrontier
Deal found 9/9$132

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Texas 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 September 11, 2025.
Use the filters below to find and compare flights from Ontario to Texas that are best for you.

Fly from

Ontario

Fly to

Texas

Route

Depart

Return

Price

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Thu 10/9

8:34 am-1:41 pm

Nonstop3h 07m

Dallas/Fort Worth

Sat 10/11

2:22 pm-11:50 pm

1 stop11h 28m

$134

OntarioEl Paso

ONT - ELP

ONTELP

Ontario

Fri 9/26

10:28 pm-1:44 pm

1 stop14h 16m

El Paso

Sun 9/28

1:33 pm-7:53 am

1 stop19h 20m

$143

OntarioEl Paso

ONT - ELP

ONTELP

Ontario

Thu 9/25

8:59 pm-12:48 pm

1 stop14h 49m

El Paso

Sun 9/28

1:33 pm-7:53 am

1 stop19h 20m

$143

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Fri 9/26

8:59 pm-2:27 pm

1 stop15h 28m

San Antonio

Mon 9/29

8:20 pm-7:54 pm

1 stop25h 34m

$143

OntarioEl Paso

ONT - ELP

ONTELP

Ontario

Sun 9/21

6:00 am-11:27 am

1 stop4h 27m

El Paso

Wed 9/24

1:33 pm-7:54 pm

1 stop7h 21m

$144

OntarioEl Paso

ONT - ELP

ONTELP

Ontario

Wed 9/24

8:59 pm-12:48 pm

1 stop14h 49m

El Paso

Fri 9/26

1:33 pm-7:54 pm

1 stop7h 21m

$145

OntarioEl Paso

ONT - ELP

ONTELP

Ontario

Sat 10/25

7:04 am-1:50 pm

1 stop5h 46m

El Paso

Mon 10/27

7:44 pm-8:42 pm

1 stop25h 58m

$145

OntarioEl Paso

ONT - ELP

ONTELP

Ontario

Sun 9/21

6:00 am-11:27 am

1 stop4h 27m

El Paso

Sun 10/5

12:27 pm-7:17 am

1 stop19h 50m

$145

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Wed 9/24

8:59 pm-7:15 pm

1 stop20h 16m

San Antonio

Sun 9/28

8:20 pm-7:53 am

1 stop13h 33m

$145

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Fri 10/24

11:53 am-11:09 am

1 stop21h 16m

Dallas/Fort Worth

Sun 10/26

6:35 am-7:49 am

Nonstop3h 14m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Texas

Have a flexible travel schedule? Discover the best time to fly to Texas from Ontario 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 Ontario to Texas

What is the cheapest month to book a flight from Ontario to Texas?

Currently, August is the cheapest month in which you can book a flight from Ontario to Texas (average of $216). Flying from Ontario to Texas in March is currently the most expensive (average of $295). 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.

What is the cheapest time of day to fly from ONT to TX?

Find hourly flight availability from Ontario to Texas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Texas as you normally would.

Weekly flight availability from Ontario to Texas

Explore weekly flight availability from Ontario to Texas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from ONT to USTX are scheduled on a Thursday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost to fly round-trip from Ontario to Texas?

Reviews of airlines servicing Texas

Get insights into the airlines that provide service to Texas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Texas. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Ontario to Texas by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Ontario to Texas. 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 from for flights from Ontario to Texas?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Texas. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Texas?

    Airlines like Frontier, Southwest, and Delta fly from Ontario to Texas in about 3h 07m. The time it takes to get you to your destination can typically vary by up to 5h 11m. Ontario and Texas are separated by a distance of 1185 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Ontario to Texas one-way?

    One-way options have recently been found by users for as low as $75 on Frontier. Other airlines that offer cheap prices include American Airlines from $80 and Southwest from $80 one-way.

  • What are the most popular routes from Ontario to Texas?

    When deciding which route to take from Ontario to Texas consider Ontario - Dallas/Fort Worth, Ontario - Houston Hobby or Ontario - Houston George Bush Intcntl as they are the most popular.

  • What are the most reliable airlines from Ontario to Texas?

    Before booking your flight to Texas from Ontario, check out the most reliable airlines to get you to your destination on time: Frontier (77%), Iberia (68%), American Airlines( 65%).

  • What are the cheapest flights from Ontario to Texas?

    Looking at all options, your cheapest flight can be booked for $87. While the most popular route (Ontario - Dallas/Fort Worth) can be booked for $103 on average, our data indicates $817 when flying from Ontario to Texas.

  • Can I find deals for flights from Ontario to Texas that include hotel bookings?

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

  • How can I find direct flights from Ontario to Texas?

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

  • Can I find deals for business class flights from Ontario to Texas?

    Yes. Cheapflights offers flight deals from Ontario to Texas 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 Ontario to Texas?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Texas (average of $216). Flying from Ontario to Texas in March is currently the most expensive (average of $295). 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 Ontario to Texas

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Ontario to Texas

Discover the top 7 airlines that operate flights from Ontario to Texas. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$200FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$83Average$185FlexibilityNo cancel feeOn-time65%
DeltaCheapest$120Average$341FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$174Average$379FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$174Average$402FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$186Average$405FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$225Average$258FlexibilityNo cancel feeOn-time75%

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