HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$29+ Cheap flights from Texas 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Texas to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Texas to Ontario

Keep the following information in mind while searching for Texas to Ontario flight deals. Data was last updated October 30, 2025.

Round-trip from

$92
(CheapOair)

One-way from

$29
(Frontier)

Popular in

December

Cheapest in

February

Average price

$209

Good round-trip deal

$148 or less

Good one-way deal

$89 or less
From Texas to Ontario
Search Deals
One-way flight from Texas to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Texas to Ontario.
Search Deals
Price to beat on a one-way flight from Texas to Ontario.
Search Deals

Find flight deals from Texas to Ontario

Cheapest flights from Texas to Ontario
Explore the most affordable flight options available from Texas to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This CheapOair deal was found by Cheapflights users on 10/29. 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.
Wed 12/34:32 pmIAH - ONT
1 stop20h 37mFrontier
Sun 12/72:59 pmONT - IAH
Nonstop3h 22mFrontier
Deal found 10/29$92
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Mon 11/175:23 pmIAH - ONT
Nonstop3h 26mFrontier
Tue 11/188:45 amONT - IAH
1 stop25h 54mFrontier
Deal found 10/29$95
This CheapOair deal was found by Cheapflights users on 10/28. 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.
Sun 12/72:51 pmIAH - ONT
Nonstop3h 42mFrontier
Sun 12/142:59 pmONT - IAH
Nonstop3h 22mFrontier
Deal found 10/28$96
This Mytrip deal was found by Cheapflights users on 10/28. 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 11/138:06 pmIAH - ONT
1 stop13h 11mFrontier
Mon 11/171:46 pmONT - IAH
Nonstop3h 25mFrontier
Deal found 10/28$100
This Frontier deal was found by Cheapflights users on 10/29. 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.
Wed 11/122:09 pmIAH - ONT
1 stop9h 20mFrontier
Thu 11/131:46 pmONT - IAH
Nonstop3h 25mFrontier
Deal found 10/29$106
This CheapOair deal was found by Cheapflights users on 10/28. 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 11/145:23 pmIAH - ONT
Nonstop3h 26mFrontier
Sun 11/161:46 pmONT - IAH
Nonstop3h 25mFrontier
Deal found 10/28$108
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Sat 11/1510:30 amDFW - ONT
1 stop15h 20mFrontier
Tue 11/188:45 amONT - DFW
1 stop24h 24mFrontier
Deal found 10/28$110
This CheapOair deal was found by Cheapflights users on 10/28. 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 11/1310:46 pmSAT - ONT
1 stop10h 31mFrontier
Sat 11/156:53 amONT - SAT
1 stop5h 24mFrontier
Deal found 10/28$110
This CheapOair deal was found by Cheapflights users on 10/30. 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.
Mon 11/177:14 pmAUS - ONT
1 stop4h 43mFrontier
Tue 11/188:45 amONT - AUS
1 stop9h 57mFrontier
Deal found 10/30$110
This Priceline deal was found by Cheapflights users on 10/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/122:10 pmELP - ONT
1 stop7h 32mFrontier
Sat 11/156:53 amONT - ELP
1 stop6h 42mFrontier
Deal found 10/29$110
This Frontier deal was found by Cheapflights users on 10/28. 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.
Tue 12/210:00 amDFW - ONT
Nonstop3h 27mFrontier
Fri 12/56:19 pmONT - DFW
Nonstop3h 03mFrontier
Deal found 10/28$111
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Mon 11/106:15 amDFW - ONT
Nonstop3h 14mFrontier
Tue 11/118:00 amONT - DFW
1 stop26h 59mFrontier
Deal found 10/27$112

Cheapflights Fare Finder

 
Customize your flight search to find flights from Texas 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 October 30, 2025.
Use the filters below to find and compare flights from Texas to Ontario that are best for you.

Fly from

Texas

Fly to

Ontario

Route

Depart

Return

Price

San AntonioOntario

SAT - ONT

SATONT

San Antonio

Mon 11/17

8:25 pm-9:27 pm

1 stop27h 02m

Ontario

Wed 11/19

8:45 am-6:45 pm

1 stop8h 00m

$110

El PasoOntario

ELP - ONT

ELPONT

El Paso

Sat 11/15

3:25 pm-11:50 pm

1 stop9h 25m

Ontario

Mon 11/17

7:54 am-6:59 pm

1 stop10h 05m

$110

El PasoOntario

ELP - ONT

ELPONT

El Paso

Thu 12/25

12:24 pm-11:59 pm

1 stop12h 35m

Ontario

Wed 12/31

6:00 pm-11:29 am

2 stops16h 29m

$131

San AntonioOntario

SAT - ONT

SATONT

San Antonio

Sat 11/8

3:12 pm-11:50 pm

1 stop10h 38m

Ontario

Wed 11/12

8:00 am-1:19 pm

1 stop27h 19m

$143

El PasoOntario

ELP - ONT

ELPONT

El Paso

Mon 11/10

12:10 pm-9:57 pm

1 stop10h 47m

Ontario

Mon 11/17

7:54 am-6:59 pm

1 stop10h 05m

$143

El PasoOntario

ELP - ONT

ELPONT

El Paso

Thu 11/6

12:10 pm-9:57 pm

1 stop10h 47m

Ontario

Thu 11/13

6:53 am-12:53 pm

1 stop5h 00m

$150

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Thu 12/11

8:18 pm-9:49 pm

Nonstop3h 31m

Ontario

Mon 12/15

6:00 am-11:06 am

Nonstop3h 06m

$155

El PasoOntario

ELP - ONT

ELPONT

El Paso

Mon 11/10

2:45 pm-11:50 pm

1 stop10h 05m

Ontario

Fri 11/14

8:24 am-6:56 pm

1 stop9h 32m

$167

El PasoOntario

ELP - ONT

ELPONT

El Paso

Fri 12/5

5:32 pm-2:25 pm

1 stop21h 53m

Ontario

Sun 12/7

4:01 pm-12:47 pm

1 stop19h 46m

$176

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Thu 12/11

12:40 pm-5:20 pm

1 stop6h 40m

Ontario

Mon 12/15

5:25 am-1:40 pm

1 stop6h 15m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Texas to Ontario

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

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

Currently, December is the cheapest month in which you can book a flight from Texas to Ontario (average of $49). Flying from Texas to Ontario in June is currently the most expensive (average of $86). 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 TX to ONT?

Find hourly flight availability from Texas to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s typically best to fly out from Texas to Ontario in the evening. Doing so could potentially save you 7% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Texas to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Texas to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Texas to Ontario flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Texas 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 Texas?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Texas. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Texas to Ontario?

    Departing from Texas to Ontario will take you 3h 31m. Texas and Ontario are separated by a distance of 1330 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 Texas to Ontario one-way?

    The cheapest airlines for a one-way flight from Texas to Ontario are Frontier ($55), Southwest ($90), and Delta ($109).

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

    While some choose either Houston Hobby - Ontario or Houston George Bush Intcntl - Ontario, Dallas/Fort Worth - Ontario is the most popular route from Texas to Ontario.

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

    Before booking your flight to Ontario from Texas, check out the most reliable airlines to get you to your destination on time: Frontier (71%), American Airlines (63%), British Airways( 59%).

  • What are the cheapest flights from Texas to Ontario?

    The cheapest flight price from Texas to Ontario is $49. On average you can expect to pay $227. The most popular route, (Dallas/Fort Worth - Ontario), can usually be booked for $59.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Texas to Ontario (average of $49). Flying from Texas to Ontario in June is currently the most expensive (average of $86). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Texas to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to Las Vegas flights
John F Kennedy Intl to Las Vegas flights
Newark to Los Angeles flights
John F Kennedy Intl to San Francisco flights
San Francisco to Los Angeles flights
Seattle to Los Angeles flights
Newark to Las Vegas flights
Los Angeles to San Francisco flights
San Francisco to Las Vegas flights
Newark to San Francisco flights
Dallas/Fort Worth to Los Angeles flights
LaGuardia to Los Angeles flights
Seattle to Las Vegas flights
San Francisco to Ontario flights
O'Hare Intl to Las Vegas flights
Dulles Intl to Las Vegas flights
Denver to Las Vegas flights
Atlanta to Las Vegas flights
Boston to Las Vegas flights
San Francisco to Santa Ana flights
Hobby to Las Vegas flights
Dulles Intl to Los Angeles flights
Seattle to San Diego flights
LaGuardia to Las Vegas flights
Los Angeles to Las Vegas flights
Reagan-National to Los Angeles flights
Portland to Los Angeles flights
Dallas/Fort Worth to San Francisco flights
O'Hare Intl to Los Angeles flights
LaGuardia to San Francisco flights
Minneapolis to Las Vegas flights
Boston to Los Angeles flights
Santa Ana to San Francisco flights
Seattle to San Francisco flights
Seattle to Ontario flights
John F Kennedy Intl to San Diego flights
San Jose to Los Angeles flights
Baltimore to Las Vegas flights
Seattle to Santa Ana flights
Baltimore to Los Angeles flights
Burbank to Las Vegas flights
San Jose to Las Vegas flights
Atlanta to Los Angeles flights
Ontario to San Francisco flights
Reagan-National to Las Vegas flights
O'Hare Intl to San Francisco flights
Los Angeles to Sacramento flights
George Bush Intcntl to Las Vegas flights
Cleveland to Las Vegas flights

Top 6 airlines flying from Texas to Ontario

Discover the top 6 airlines that operate flights from Texas 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$202FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$64Average$215FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$139Average$366FlexibilityNo cancel feeOn-time63%
DeltaCheapest$157Average$288FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$168Average$409FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$170Average$384FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.