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Ontario

$55+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Round-trip from

$100
(Cheapflightsfares)

One-way from

$55
(CheapOair)

Popular in

December

Cheapest in

February

Average price

$197

Good round-trip deal

$144 or less

Good one-way deal

$80 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. 10% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/296:24 pmDFW - ONT
Nonstop3h 19mFrontier
Fri 5/308:38 pmONT - DFW
Nonstop3h 07mFrontier
Deal found 4/30$100
This Frontier deal was found by Cheapflights users on 4/30. 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.
Mon 5/1212:08 pmIAH - ONT
Nonstop3h 30mFrontier
Fri 5/3012:40 pmONT - IAH
Nonstop3h 31mFrontier
Deal found 4/30$120
This Frontier deal was found by Cheapflights users on 4/30. 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.
Fri 5/93:22 pmSAT - ONT
1 stop10h 37mFrontier
Thu 5/1512:59 amONT - SAT
1 stop11h 18mFrontier
Deal found 4/30$178
This Trip.com deal was found by Cheapflights users on 4/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/21:53 pmAUS - ONT
1 stop8h 58mFrontier
Thu 6/56:00 amONT - AUS
1 stop4h 58mFrontier
Deal found 4/30$189
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/24:21 pmAUS - ONT
1 stop6h 49mUnited Airlines
Thu 6/55:10 amONT - AUS
1 stop5h 44mUnited Airlines
Deal found 4/30$197
This Frontier deal was found by Cheapflights users on 4/30. 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 5/3111:58 amELP - ONT
1 stop9h 51mFrontier
Fri 6/612:59 amONT - ELP
1 stop10h 19mFrontier
Deal found 4/30$198
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/28:15 pmELP - ONT
1 stop3h 25mSouthwest
Sat 7/54:35 pmONT - ELP
1 stop6h 20mSouthwest
Deal found 4/30$230
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/18:15 amDFW - ONT
1 stop6h 02mDelta
Sat 7/126:00 amONT - DFW
1 stop6h 42mDelta
Deal found 4/30$237
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/104:08 pmDAL - ONT
1 stop8h 17mDelta
Sat 6/217:05 amONT - DAL
1 stop8h 49mDelta
Deal found 4/30$237
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/287:00 pmDAL - ONT
Nonstop3h 15mSouthwest
Wed 6/43:40 pmONT - DAL
1 stop5h 40mSouthwest
Deal found 4/30$246
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/23:59 pmIAH - ONT
1 stop8h 26mDelta
Mon 7/71:15 pmONT - IAH
1 stop6h 25mDelta
Deal found 4/30$257
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/227:50 pmIAH - ONT
Nonstop3h 20mUnited Airlines
Sun 5/256:00 amONT - IAH
Nonstop3h 15mUnited Airlines
Deal found 4/29$271

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 May 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

Thu 5/29

6:24 pm-7:43 pm

Nonstop3h 19m

Ontario

Fri 5/30

8:38 pm-1:45 am

Nonstop3h 07m

$100

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Mon 5/12

12:08 pm-1:38 pm

Nonstop3h 30m

Ontario

Fri 5/30

12:40 pm-6:11 pm

Nonstop3h 31m

$120

San AntonioOntario

SAT - ONT

SATONT

San Antonio

Sun 5/18

1:43 pm-7:24 am

1 stop19h 41m

Ontario

Sat 5/24

5:15 pm-1:23 pm

1 stop18h 08m

$185

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Mon 6/2

1:53 pm-8:51 pm

1 stop8h 58m

Ontario

Thu 6/5

6:00 am-12:58 pm

1 stop4h 58m

$189

AustinOntario

AUS - ONT

AUSONT

Austin Bergstrom

Mon 6/2

4:21 pm-9:10 pm

1 stop6h 49m

Ontario

Thu 6/5

5:10 am-12:54 pm

1 stop5h 44m

$197

El PasoOntario

ELP - ONT

ELPONT

El Paso

Sat 5/31

11:58 am-8:49 pm

1 stop9h 51m

Ontario

Fri 6/6

12:59 am-12:18 pm

1 stop10h 19m

$198

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sun 6/1

10:30 am-11:50 am

Nonstop3h 20m

Ontario

Wed 6/4

11:59 pm-4:56 am

Nonstop2h 57m

$226

El PasoOntario

ELP - ONT

ELPONT

El Paso

Wed 7/2

8:15 pm-10:40 pm

1 stop3h 25m

Ontario

Sat 7/5

4:35 pm-11:55 pm

1 stop6h 20m

$230

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Tue 7/1

6:20 pm-10:45 pm

1 stop6h 25m

Ontario

Sat 7/5

6:00 am-2:43 pm

1 stop6h 43m

$237

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Tue 6/10

7:31 pm-11:59 pm

1 stop6h 28m

Ontario

Tue 6/17

6:23 am-1:59 pm

1 stop5h 36m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

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 May 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 May 1, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Texas to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

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
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

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
4,293 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

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 ($55), Southwest ($99), and Hawaiian Airlines ($103).

  • 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: Qatar Airways (81%), Frontier (73%), American Airlines( 72%).

  • What are the cheapest flights from Texas to Ontario?

    The cheapest flight price from Texas to Ontario is $50. On average you can expect to pay $157. The most popular route, (Dallas/Fort Worth - Ontario), can usually be booked for $116.

  • 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$43Average$168FlexibilityNo cancel feeOn-time65%
FrontierCheapest$70Average$201FlexibilityNo cancel feeOn-time62%
DeltaCheapest$157Average$343FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$164Average$382FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$177Average$420FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$210Average$382FlexibilityNo cancel feeOn-time63%

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