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Ontario

$71+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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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 August 1, 2025.

Round-trip from

$135
(Frontier)

One-way from

$71
(Frontier)

Popular in

November

Cheapest in

February

Average price

$188

Good round-trip deal

$139 or less

Good one-way deal

$108 or less
From Texas to Ontario
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One-way flight from Texas to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Texas to Ontario.
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Price to beat on a one-way flight from Texas to Ontario.
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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 August 1, 2025.

This Frontier deal was found by Cheapflights users on 7/31. 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.
Sun 9/75:03 pmDFW - ONT
Nonstop3h 12mFrontier
Mon 9/1512:13 pmONT - DFW
Nonstop3h 14mFrontier
Deal found 7/31$135
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1312:40 pmDFW - ONT
Nonstop3h 14mAmerican Airlines
Sat 9/272:54 pmONT - DFW
Nonstop3h 03mAmerican Airlines
Deal found 7/31$139
This Southwest deal was found by Cheapflights users on 7/31. 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.
Fri 9/127:45 pmDAL - ONT
Nonstop3h 05mSouthwest
Sun 9/145:10 amONT - DAL
Nonstop2h 55mSouthwest
Deal found 7/31$139
This Gotogate deal was found by Cheapflights users on 7/31. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/295:16 pmIAH - ONT
Nonstop3h 18mFrontier
Mon 9/112:46 pmONT - IAH
Nonstop3h 31mFrontier
Deal found 7/31$151
This Frontier deal was found by Cheapflights users on 7/31. 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 8/301:29 pmELP - ONT
1 stop11h 21mFrontier
Sun 8/3110:25 amONT - ELP
1 stop8h 24mFrontier
Deal found 7/31$187
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:59 pmIAH - ONT
Nonstop3h 25mUnited Airlines
Mon 9/296:00 amONT - IAH
Nonstop3h 10mUnited Airlines
Deal found 7/31$191
This Southwest deal was found by Cheapflights users on 7/31. 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.
Fri 9/267:50 amHOU - ONT
Nonstop3h 15mSouthwest
Mon 9/296:20 amONT - HOU
Nonstop3h 10mSouthwest
Deal found 7/31$191
This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/163:06 pmSAT - ONT
1 stop8h 46mFrontier
Fri 8/2212:59 amONT - SAT
1 stop11h 36mFrontier
Deal found 7/30$197
This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/93:15 pmAUS - ONT
1 stop8h 37mFrontier
Sat 8/167:00 amONT - AUS
1 stop5h 30mFrontier
Deal found 7/30$198
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:45 pmIAH - ONT
1 stop8h 06mAlaska Airlines
Mon 10/207:10 amONT - IAH
1 stop7h 30mAlaska Airlines
Deal found 7/31$210
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/25:05 amIAH - ONT
1 stop6h 53mAmerican Airlines
Tue 9/912:45 pmONT - IAH
1 stop7h 47mAmerican Airlines
Deal found 7/31$211
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/99:04 amHOU - ONT
1 stop6h 50mAmerican Airlines
Sun 9/1411:59 pmONT - HOU
1 stop7h 45mAmerican Airlines
Deal found 7/31$211

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 August 1, 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

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sun 9/7

5:03 pm-6:15 pm

Nonstop3h 12m

Ontario

Mon 9/15

12:13 pm-5:27 pm

Nonstop3h 14m

$135

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Fri 8/29

5:16 pm-6:34 pm

Nonstop3h 18m

Ontario

Mon 9/1

12:46 pm-6:17 pm

Nonstop3h 31m

$138

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sat 9/13

12:40 pm-1:54 pm

Nonstop3h 14m

Ontario

Sat 9/27

2:54 pm-7:57 pm

Nonstop3h 03m

$139

DallasOntario

DAL - ONT

DALONT

Dallas Love Field

Fri 9/12

7:45 pm-8:50 pm

Nonstop3h 05m

Ontario

Sun 9/14

5:10 am-10:05 am

Nonstop2h 55m

$139

El PasoOntario

ELP - ONT

ELPONT

El Paso

Sat 8/30

1:29 pm-11:50 pm

1 stop11h 21m

Ontario

Sun 8/31

10:25 am-7:49 pm

1 stop8h 24m

$187

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Fri 9/26

7:59 pm-9:24 pm

Nonstop3h 25m

Ontario

Mon 9/29

6:00 am-11:10 am

Nonstop3h 10m

$191

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Fri 9/26

7:50 am-9:05 am

Nonstop3h 15m

Ontario

Mon 9/29

6:20 am-11:30 am

Nonstop3h 10m

$191

San AntonioOntario

SAT - ONT

SATONT

San Antonio

Sat 8/16

3:06 pm-9:52 pm

1 stop8h 46m

Ontario

Fri 8/22

12:59 am-2:35 pm

1 stop11h 36m

$197

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Sat 8/9

3:15 pm-9:52 pm

1 stop8h 37m

Ontario

Sat 8/16

7:00 am-2:30 pm

1 stop5h 30m

$198

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Thu 10/16

5:45 pm-11:51 pm

1 stop8h 06m

Ontario

Tue 10/21

7:10 am-4:40 pm

1 stop7h 30m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 60 results
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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, August is the cheapest month in which you can book a flight from Texas to Ontario (average of $246). Flying from Texas to Ontario in March is currently the most expensive (average of $328). 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 August 1, 2025.

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

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 August 1, 2025.

The most flights from USTX to ONT are scheduled on a Thursday (19 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 on average).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated August 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Texas to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,904 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 ($71), Southwest ($79), and American Airlines ($80).

  • 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: Frontier (83%), American Airlines (49%), Qatar Airways( 49%).

  • What are the cheapest flights from Texas to Ontario?

    The cheapest flight price from Texas to Ontario is $91. On average you can expect to pay $211. The most popular route, (Houston Hobby - Ontario), can usually be booked for $106.

  • 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, August is the cheapest month in which you can book a flight from Texas to Ontario (average of $246). Flying from Texas to Ontario in March is currently the most expensive (average of $328). 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 August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$204FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$74Average$159FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$139Average$377FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$148Average$392FlexibilityNo cancel feeOn-time69%
DeltaCheapest$158Average$292FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$182Average$376FlexibilityNo cancel feeOn-time71%

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