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Ontario

$64+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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Cheap 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 July 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:09 pm
IAH
-
ONT
1 stop13h 55m
Frontier
Sat 8/226:00 am
ONT
-
IAH
1 stop16h 40m
Frontier
Deal found 7/28$139
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:14 pm
IAH
-
ONT
1 stop7h 36m
Frontier
Mon 8/246:00 am
ONT
-
IAH
1 stop16h 40m
Frontier
Deal found 7/27$140
This Frontier deal was found by Cheapflights users on 7/24. 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.
Sat 8/156:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Wed 8/1910:59 am
ONT
-
IAH
Nonstop3h 24m
Frontier
Deal found 7/24$141
This Frontier deal was found by Cheapflights users on 7/25. 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 10/81:15 pm
IAH
-
ONT
Nonstop3h 32m
Frontier
Thu 10/153:57 pm
ONT
-
IAH
Nonstop3h 23m
Frontier
Deal found 7/25$142
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:46 am
IAH
-
ONT
1 stop15h 04m
Frontier
Tue 8/256:00 am
ONT
-
IAH
1 stop16h 40m
Frontier
Deal found 7/25$143
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Tue 9/810:59 am
ONT
-
IAH
Nonstop3h 24m
Frontier
Deal found 7/27$146
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:38 pm
IAH
-
ONT
Nonstop3h 23m
Frontier
Thu 9/1011:45 am
ONT
-
IAH
1 stop10h 58m
Frontier
Deal found 7/27$148
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Mon 8/246:00 am
ONT
-
IAH
1 stop16h 40m
Frontier
Deal found 7/26$149
This Frontier deal was found by Cheapflights users on 7/26. 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 9/36:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Sun 9/69:33 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 7/26$150
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:35 am
IAH
-
ONT
1 stop14h 15m
Frontier
Sat 8/2910:59 am
ONT
-
IAH
Nonstop3h 24m
Frontier
Deal found 7/25$151
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:21 pm
AUS
-
ONT
1 stop19h 19m
Frontier
Thu 11/122:35 pm
ONT
-
AUS
1 stop7h 24m
Frontier
Deal found 7/24$178
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:13 pm
DFW
-
ONT
1 stop6h 37m
Frontier
Wed 9/96:15 am
ONT
-
DFW
1 stop12h 20m
Frontier
Deal found 7/23$185

Find flight deals from Texas to Ontario

Keep the following information in mind while searching for Texas to Ontario flight deals. Data was last updated July 29, 2026.

Round-trip from

$139
(Kiwi.com)

One-way from

$64
(Frontier)

Popular in

June

Cheapest in

January

Average price

$353

Good round-trip deal

$161 or less

Good one-way deal

$132 or less
From Texas to Ontario
Search Deals
One-way flight from Texas to Ontario
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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

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 July 29, 2026.
Use the filters below to find and compare flights from Texas to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Tue 9/15

4:05 pm-11:47 pm

2 stops9h 42m

Ontario

Tue 9/22

1:04 pm-9:57 pm

1 stop6h 53m

$240

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Wed 8/26

8:50 pm-10:05 pm

Nonstop3h 15m

Ontario

Wed 9/2

7:45 am-4:55 pm

1 stop7h 10m

$245

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Mon 8/24

3:00 pm-7:25 pm

2 stops6h 25m

Ontario

Mon 8/31

11:00 am-4:05 pm

Nonstop3h 05m

$246

El PasoOntario

ELP - ONT

ELPONT

El Paso

Wed 9/9

7:35 pm-11:47 pm

1 stop5h 12m

Ontario

Mon 9/14

6:15 am-6:37 pm

1 stop11h 22m

$248

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Sat 8/22

2:55 pm-4:00 pm

Nonstop3h 05m

Ontario

Tue 8/25

2:15 pm-7:15 pm

Nonstop3h 00m

$255
Quickest round-trip

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Wed 9/9

10:50 am-11:50 am

Nonstop3h 00m

Ontario

Thu 9/10

12:50 pm-5:40 pm

Nonstop2h 50m

$257

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Mon 8/24

4:45 pm-7:25 pm

1 stop4h 40m

Ontario

Sat 8/29

7:05 am-12:00 pm

Nonstop2h 55m

$261

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Tue 9/1

7:30 am-12:16 pm

1 stop6h 46m

Ontario

Wed 9/9

1:04 pm-9:57 pm

1 stop6h 53m

$265

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Sat 8/22

6:20 am-9:35 am

1 stop5h 15m

Ontario

Sat 8/29

7:05 am-12:00 pm

Nonstop2h 55m

$265

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Sun 9/6

11:00 am-12:00 pm

Nonstop3h 00m

Ontario

Mon 9/14

2:40 pm-10:20 pm

1 stop5h 40m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 60 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from Texas to Ontario (average of $213). Flying from Texas to Ontario in June is currently the most expensive (average of $359). 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 July 29, 2026.

It’s typically best to fly out from Texas to Ontario in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying in the evening, which is usually more expensive.

Weekly flight availability from Texas to Ontario

Explore weekly flight availability from Texas to Ontario. 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 July 29, 2026.

The most flights from USTX to ONT are scheduled on a Wednesday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

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

Airfare is typical for this route at the moment.
Texas to Ontario flights typically cost between $173 and $306 in August.
The cheapest round-trip price found within the last 5 days was $186 on Frontier (Aug 17-Sep 11).

How far ahead should I book a flight from Texas to Ontario?

The price you pay for your flight from Texas to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 July 25, 2026.

Travelers seeking maximum savings on their Texas to Ontario flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday 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 15m. Texas and Ontario are separated by a distance of 1341 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 ($49), American Airlines ($95), and United Airlines ($95).

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

    While some choose either Houston George Bush Intcntl - Ontario or Dallas/Fort Worth - Ontario, Houston Hobby - 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: GOL (100%), Royal Jordanian (72%), Frontier( 69%).

  • What are the cheapest flights from Texas to Ontario?

    The cheapest flight price from Texas to Ontario is $116. On average you can expect to pay $625. The most popular route, (Houston Hobby - Ontario), can usually be booked for $145.

  • 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, September is the cheapest month in which you can book a flight from Texas to Ontario (average of $213). Flying from Texas to Ontario in June is currently the most expensive (average of $359). 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 Texas to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$229FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$159Average$395FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$173Average$361FlexibilityNo cancel feeOn-time69%
DeltaCheapest$177Average$286FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$177Average$391FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$232Average$440FlexibilityNo cancel feeOn-time62%

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