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$83+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
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 June 9, 2026.

This Frontier deal was found by Cheapflights users on 6/8. 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 8/116:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Wed 8/129:36 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 6/8$156
This Travelocity deal was found by Cheapflights users on 6/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Wed 8/59:36 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 6/9$181
This Frontier deal was found by Cheapflights users on 6/8. 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 8/66:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Tue 8/119:36 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 6/8$182
This Frontier deal was found by Cheapflights users on 6/6. 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 8/181:41 pm
IAH
-
ONT
1 stop8h 07m
Frontier
Wed 8/195:43 pm
ONT
-
IAH
Nonstop3h 25m
Frontier
Deal found 6/6$189
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 6/2912:12 pm
AUS
-
ONT
1 stop28h 56m
Frontier
Tue 7/710:49 am
ONT
-
AUS
1 stop24h 41m
Frontier
Deal found 6/5$191
This Southwest deal was found by Cheapflights users on 6/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:40 am
AUS
-
ONT
1 stop4h 45m
Southwest
Tue 9/17:15 am
ONT
-
AUS
1 stop6h 30m
Southwest
Deal found 6/7$192
This Super.com deal was found by Cheapflights users on 6/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Mon 8/109:36 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 6/6$193
This iWofly deal was found by Cheapflights users on 6/7. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Tue 7/289:32 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 6/7$194
This Super.com deal was found by Cheapflights users on 6/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Sun 8/169:36 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 6/4$195
This Frontier deal was found by Cheapflights users on 6/8. 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 7/216:14 pm
IAH
-
ONT
1 stop7h 36m
Frontier
Wed 7/229:32 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 6/8$196
This Frontier deal was found by Cheapflights users on 6/7. 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 7/236:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Wed 7/299:32 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 6/7$197
This Frontier deal was found by Cheapflights users on 6/7. 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 8/86:10 am
IAH
-
ONT
Nonstop3h 22m
Frontier
Wed 8/129:36 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 6/7$198

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 June 9, 2026.

Round-trip from

$156
(Frontier)

One-way from

$83
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$288

Good round-trip deal

$176 or less

Good one-way deal

$120 or less
From Texas to Ontario
Search Deals
One-way flight from Texas to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 9, 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

El PasoOntario

ELP - ONT

ELPONT

El Paso

Sat 10/10

7:45 pm-11:55 pm

1 stop5h 10m

Ontario

Tue 10/13

11:16 am-8:21 pm

1 stop8h 05m

$248

El PasoOntario

ELP - ONT

ELPONT

El Paso

Tue 8/25

6:08 pm-11:49 pm

1 stop6h 41m

Ontario

Wed 8/26

6:00 am-7:02 pm

1 stop12h 02m

$248

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Tue 7/28

2:30 pm-3:25 pm

Nonstop2h 55m

Ontario

Tue 8/4

3:35 pm-10:00 pm

1 stop4h 25m

$275

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Tue 8/11

2:26 pm-10:45 pm

2 stops10h 19m

Ontario

Wed 8/12

6:20 am-9:23 pm

2 stops13h 03m

$290

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Thu 10/22

12:55 pm-2:00 pm

Nonstop3h 05m

Ontario

Wed 10/28

1:55 pm-11:05 pm

1 stop7h 10m

$292

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Wed 7/1

8:31 pm-9:55 pm

Nonstop3h 24m

Ontario

Tue 7/7

5:45 am-11:04 am

Nonstop3h 19m

$297

McAllenOntario

MFE - ONT

MFEONT

McAllen Miller Intl

Fri 9/25

12:39 pm-10:26 pm

2 stops11h 47m

Ontario

Tue 9/29

1:00 pm-11:55 pm

2 stops8h 55m

$298

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sat 9/5

7:40 am-4:24 pm

2 stops10h 44m

Ontario

Tue 9/15

6:20 am-8:50 pm

2 stops12h 30m

$304

El PasoOntario

ELP - ONT

ELPONT

El Paso

Sat 6/20

8:09 pm-3:08 pm

1 stop19h 59m

Ontario

Mon 6/22

11:58 am-7:14 pm

1 stop6h 16m

$308

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Wed 9/2

8:50 pm-10:05 pm

Nonstop3h 15m

Ontario

Mon 9/7

4:50 pm-12:05 am

1 stop5h 15m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

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, February is the cheapest month in which you can book a flight from Texas to Ontario (average of $33). Flying from Texas to Ontario in March is currently the most expensive (average of $1,160). 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 June 9, 2026.

It’s typically best to fly out from Texas to Ontario at noon. Doing so could potentially save you 22% 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 June 9, 2026.

The most flights from USTX to ONT are scheduled on a Tuesday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 on average).

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

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 June 8, 2026.

Travelers seeking maximum savings on their Texas to Ontario flight should consider departing on Wednesday mornings when fares are most often at their lowest. Wednesday 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 2h 55m. Texas and Ontario are separated by a distance of 1193 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), Southwest ($89), and American Airlines ($94).

  • 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 (88%), Volaris (88%), Royal Jordanian( 64%).

  • What are the cheapest flights from Texas to Ontario?

    The cheapest flight price from Texas to Ontario is $127. On average you can expect to pay $281. The most popular route, (Dallas/Fort Worth - Ontario), can usually be booked for $222.

  • 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, February is the cheapest month in which you can book a flight from Texas to Ontario (average of $33). Flying from Texas to Ontario in March is currently the most expensive (average of $1,160). 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$60Average$217FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$139Average$389FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$167Average$384FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$173Average$367FlexibilityNo cancel feeOn-time69%
DeltaCheapest$177Average$286FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$232Average$337FlexibilityNo cancel feeOn-time62%

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