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$61+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
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 March 12, 2026.

This Super.com deal was found by Cheapflights users on 3/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/173:01 pm
IAH
-
ONT
Nonstop3h 37m
Frontier
Mon 4/208:26 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 3/9$126
This Super.com deal was found by Cheapflights users on 3/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:01 pm
IAH
-
ONT
Nonstop3h 37m
Frontier
Mon 5/188:26 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 3/10$127
This Frontier deal was found by Cheapflights users on 3/8. 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.
Fri 5/153:01 pm
IAH
-
ONT
Nonstop3h 37m
Frontier
Sun 5/178:26 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 3/8$128
This CheapOair deal was found by Cheapflights users on 3/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:15 am
IAH
-
ONT
1 stop18h 40m
Frontier
Sun 4/198:21 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 3/9$134
This Super.com deal was found by Cheapflights users on 3/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/303:11 pm
IAH
-
ONT
Nonstop3h 37m
Frontier
Sun 5/38:21 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 3/9$136
This Frontier deal was found by Cheapflights users on 3/7. 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.
Wed 4/15:20 pm
DFW
-
ONT
1 stop8h 36m
Frontier
Tue 4/1411:44 am
ONT
-
DFW
1 stop5h 21m
Frontier
Deal found 3/7$144
This Frontier deal was found by Cheapflights users on 3/8. 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.
Wed 4/2210:45 pm
DFW
-
ONT
1 stop11h 39m
Frontier
Wed 4/297:44 pm
ONT
-
DFW
1 stop8h 06m
Frontier
Deal found 3/8$145
This CheapOair deal was found by Cheapflights users on 3/10. 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.
Sat 5/27:15 am
IAH
-
ONT
1 stop18h 40m
Frontier
Sun 5/38:21 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 3/10$145
This Super.com deal was found by Cheapflights users on 3/12. 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 4/173:01 pm
IAH
-
ONT
Nonstop3h 37m
Frontier
Sun 4/198:21 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 3/12$146
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:00 am
AUS
-
ONT
1 stop18h 56m
Frontier
Tue 4/2112:59 am
ONT
-
AUS
1 stop14h 19m
Frontier
Deal found 3/10$146
This Frontier deal was found by Cheapflights users on 3/7. 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.
Tue 5/191:45 pm
DFW
-
ONT
1 stop6h 49m
Frontier
Mon 5/2512:59 am
ONT
-
DFW
1 stop8h 30m
Frontier
Deal found 3/7$147
This Frontier deal was found by Cheapflights users on 3/8. 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 5/73:01 pm
IAH
-
ONT
Nonstop3h 37m
Frontier
Mon 5/118:26 am
ONT
-
IAH
Nonstop3h 20m
Frontier
Deal found 3/8$148

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 March 12, 2026.

Round-trip from

$126
(Super.com)

One-way from

$61
(Trip.com)

Popular in

March

Cheapest in

January

Average price

$289

Good round-trip deal

$185 or less

Good one-way deal

$108 or less
From Texas to Ontario
Search Deals
One-way flight from Texas to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 12, 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

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Sat 5/30

5:45 am-8:40 am

1 stop4h 55m

Ontario

Sun 6/7

4:35 pm-1:55 am

1 stop7h 20m

$209

El PasoOntario

ELP - ONT

ELPONT

El Paso

Thu 3/26

2:16 pm-3:37 pm

1 stop26h 21m

Ontario

Mon 3/30

9:49 pm-9:06 pm

1 stop22h 17m

$223

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Sat 4/25

5:18 pm-9:50 pm

1 stop6h 32m

Ontario

Tue 4/28

6:05 am-4:04 pm

1 stop7h 59m

$237

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Thu 5/21

6:32 pm-11:34 pm

1 stop7h 02m

Ontario

Sun 5/24

10:00 pm-9:33 am

1 stop9h 33m

$237

HarlingenOntario

HRL - ONT

HRLONT

Harlingen Valley Intl

Fri 4/17

5:18 pm-9:50 pm

1 stop6h 32m

Ontario

Tue 4/21

6:05 am-4:04 pm

1 stop7h 59m

$237

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Sun 3/29

5:45 am-8:50 am

1 stop5h 05m

Ontario

Wed 4/1

10:35 am-5:50 pm

1 stop5h 15m

$237

El PasoOntario

ELP - ONT

ELPONT

El Paso

Sun 3/22

3:02 pm-8:06 am

1 stop18h 04m

Ontario

Thu 3/26

8:07 am-1:21 pm

1 stop4h 14m

$250

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Fri 6/5

5:45 am-11:20 am

2 stops7h 35m

Ontario

Mon 6/8

4:00 pm-11:50 pm

1 stop5h 50m

$262

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Fri 4/24

6:05 am-12:10 pm

2 stops8h 05m

Ontario

Mon 4/27

3:00 pm-12:05 am

1 stop7h 05m

$262

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Wed 8/12

4:14 pm-11:11 pm

1 stop8h 57m

Ontario

Tue 8/18

2:09 pm-12:34 am

1 stop8h 25m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

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 $96). 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 March 12, 2026.

It’s typically best to fly out from Texas to Ontario at noon. Doing so could potentially save you 30% on the flight price compared to flying in the evening, 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 February 21, 2026.

Travelers seeking maximum savings on their Texas to Ontario flight should consider departing on Saturday mornings 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.

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 March 12, 2026.

The most flights from USTX to ONT are scheduled on a Monday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 on average).

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 4h 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), American Airlines ($84), and Southwest ($87).

  • 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 (98%), Volaris (96%), Qatar Airways( 87%).

  • What are the cheapest flights from Texas to Ontario?

    The cheapest flight price from Texas to Ontario is $75. On average you can expect to pay $219. The most popular route, (Dallas/Fort Worth - Ontario), can usually be booked for $134.

  • 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 $96). 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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$52Average$149FlexibilityNo cancel feeOn-time65%
FrontierCheapest$63Average$202FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$134Average$406FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$139Average$384FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$164Average$386FlexibilityNo cancel feeOn-time71%
DeltaCheapest$177Average$302FlexibilityNo cancel feeOn-timeN/A

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