Ontario

$70+ Cheap flights from Dallas/Fort Worth (DFW) 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Aug 19 — Aug 261
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Cheapflights Tip: The best prices from Dallas/Fort Worth to Ontario are usually found in February or September, booked 85 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Dallas/Fort Worth to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Dallas/Fort Worth (DFW) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$119
(Cheapflightsfares)

One-way from

$70
(American Airlines)

Popular in

January

Cheapest in

February

Average price

$206

Good round-trip deal

$151 or less

Good one-way deal

$141 or less
From Dallas/Fort Worth to Ontario
One-way flight from Dallas/Fort Worth to Ontario
Highest demand for flights based on searches. 6% potential increase in price ($16 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Dallas/Fort Worth to Ontario.
Price to beat on a one-way flight from Dallas/Fort Worth to Ontario.

Find flight deals from Dallas/Fort Worth to Ontario

Cheapest flights from Dallas/Fort Worth to Ontario
Explore the most affordable flight options available from Dallas/Fort Worth to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Frontier deal was found by Cheapflights users on 8/14. 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 8/289:45 amDFW - ONT
Nonstop3h 04mFrontier
Fri 9/58:59 pmONT - DFW
1 stop11h 39mFrontier
Deal found 8/14$120
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 10/232:19 pmDFW - ONT
Nonstop3h 13mFrontier
Thu 10/3010:14 amONT - DFW
Nonstop3h 04mFrontier
Deal found 8/14$121
This CheapOair deal was found by Cheapflights users on 8/14. 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.
Thu 10/92:19 pmDFW - ONT
Nonstop3h 13mFrontier
Sun 10/1210:40 pmONT - DFW
1 stop22h 05mFrontier
Deal found 8/14$122
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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 9/410:15 amDFW - ONT
Nonstop3h 18mFrontier
Sun 9/77:15 pmONT - DFW
Nonstop3h 10mFrontier
Deal found 8/13$124
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:10 amDFW - ONT
Nonstop3h 18mFrontier
Fri 9/1912:13 pmONT - DFW
Nonstop3h 14mFrontier
Deal found 8/12$126
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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.
Fri 9/1210:10 amDFW - ONT
Nonstop3h 18mFrontier
Sun 9/144:09 pmONT - DFW
Nonstop3h 12mFrontier
Deal found 8/13$127
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:26 pmDFW - ONT
Nonstop3h 13mFrontier
Mon 10/612:13 pmONT - DFW
Nonstop3h 14mFrontier
Deal found 8/12$128
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/182:16 pmDFW - ONT
Nonstop3h 13mFrontier
Tue 9/238:00 amONT - DFW
1 stop19h 45mFrontier
Deal found 8/14$129
This CheapOair deal was found by Cheapflights users on 8/14. 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.
Fri 9/1910:10 amDFW - ONT
Nonstop3h 18mFrontier
Sun 9/213:43 pmONT - DFW
1 stop15h 33mFrontier
Deal found 8/14$130
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/810:10 amDFW - ONT
Nonstop3h 18mFrontier
Sun 9/147:15 pmONT - DFW
Nonstop3h 10mFrontier
Deal found 8/12$131
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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.
Fri 9/510:10 amDFW - ONT
Nonstop3h 18mFrontier
Sun 9/77:15 pmONT - DFW
Nonstop3h 10mFrontier
Deal found 8/13$132
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:15 amDFW - ONT
Nonstop3h 14mFrontier
Sun 10/194:17 pmONT - DFW
Nonstop3h 15mFrontier
Deal found 8/12$133

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas/Fort Worth 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 14, 2025.
Use the filters below to find and compare flights from Dallas/Fort Worth Airport to Ontario that are best for you.

Fly from

Dallas/Fort Worth

Fly to

Ontario

Route

Depart

Return

Price

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 9/11

2:16 pm-3:29 pm

Nonstop3h 13m

Ontario

Mon 9/15

4:08 pm-12:23 am

1 stop6h 15m

$120

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Fri 9/12

10:10 am-11:28 am

Nonstop3h 18m

Ontario

Tue 9/16

8:59 pm-11:15 am

1 stop12h 16m

$120

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sat 9/6

2:22 pm-7:54 pm

1 stop7h 32m

Ontario

Sun 9/7

7:15 pm-12:25 am

Nonstop3h 10m

$120

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 9/4

2:16 pm-3:29 pm

Nonstop3h 13m

Ontario

Sun 9/7

7:15 pm-12:25 am

Nonstop3h 10m

$124

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Fri 9/12

10:10 am-11:28 am

Nonstop3h 18m

Ontario

Fri 9/19

12:13 pm-5:27 pm

Nonstop3h 14m

$127

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Fri 9/12

10:10 am-11:28 am

Nonstop3h 18m

Ontario

Sun 9/14

4:09 pm-9:21 pm

Nonstop3h 12m

$127

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sun 9/14

2:11 pm-3:24 pm

Nonstop3h 13m

Ontario

Sun 9/21

7:15 pm-12:25 am

Nonstop3h 10m

$127

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 10/2

10:15 am-11:33 am

Nonstop3h 18m

Ontario

Tue 10/7

7:04 am-12:19 am

1 stop15h 15m

$127

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Fri 9/19

10:10 am-11:28 am

Nonstop3h 18m

Ontario

Mon 9/22

8:59 pm-11:15 am

1 stop12h 16m

$127

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 10/16

2:19 pm-3:32 pm

Nonstop3h 13m

Ontario

Sat 10/18

8:24 am-1:31 pm

Nonstop3h 07m

$128

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 18 results
1
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The best insider tips for Dallas/Fort Worth Airport to Ontario flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Dallas/Fort Worth Airport to Ontario trip
Airports
DFW

DFW offers a DART Orange Line connecting downtown Dallas to Terminal A, ideal for avoiding traffic congestion.

Read more about DFWby Chris Dong
ONT

ONT is a convenient airport for Southern California travels, located just off the I-10 expressway.

Our travel experts
Bill Fink

Bill Fink

Expert on ONT

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Chris Dong

Chris Dong

Expert on DFW

Chris Dong

Chris Dong

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Read more

Best time to book a flight from Dallas/Fort Worth to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Ontario

How far ahead should I book a flight from Dallas/Fort Worth Airport to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Dallas/Fort Worth to Ontario. Price data was last updated on August 8, 2025.

The price you pay for your flight from Dallas/Fort Worth Airport 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 month to book a flight from Dallas/Fort Worth Airport to Ontario?

Currently, August is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Ontario (average of $246). Flying from Dallas/Fort Worth Airport 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 DFW to ONT?

Find hourly flight availability from Dallas/Fort Worth 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 14, 2025.

When flying from Dallas/Fort Worth Airport to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 21% versus a flight in the morning.

What is the cheapest day to fly from Dallas/Fort Worth Airport to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Dallas/Fort Worth to Ontario. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Dallas/Fort Worth Airport to Ontario flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Dallas/Fort Worth Airport to Ontario

Explore weekly flight availability from Dallas/Fort Worth 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 14, 2025.

The most flights from DFW to ONT are scheduled on a Thursday (16 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (14 on average).

How much does it cost to fly round-trip from Dallas/Fort Worth Airport to Ontario?

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 14, 2025.
Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Ontario, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
8.0
Very good

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Dallas/Fort Worth 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 Dallas/Fort Worth?

    For a flight from Dallas/Fort Worth to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 14 inbound flights from Dallas/Fort Worth per day. 5 airlines have flights to Ontario from Dallas/Fort Worth on a regular basis.

  • What are the cheapest airlines flying from Dallas/Fort Worth Airport to Ontario round-trip?

    Frontier, at $82, was found to be the cheapest airline from Dallas/Fort Worth Airport to Ontario.Alternate airlines to your destination round-trip include Spirit Airlines and Southwest. Frontier is priced at 62% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Dallas/Fort Worth Airport to Ontario?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Dallas/Fort Worth Airport to Ontario on time: Frontier (66%), Qatar Airways (46%), American Airlines (43%).

  • What are the cheapest flights from Dallas/Fort Worth Airport to Ontario?

    Looking for the cheapest flight from Dallas/Fort Worth Airport to Ontario? While on average our users pay $211, our data indicates the cheapest price to be $65. The most popular route (Dallas/Fort Worth - Ontario), is priced around $75.

  • Can I find deals for flights from Dallas/Fort Worth to Ontario that include hotel bookings?

    Yes. In addition to deals on Dallas/Fort Worth to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dallas/Fort Worth to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dallas/Fort Worth to Ontario.

  • Can I find deals for business class flights from Dallas/Fort Worth to Ontario?

    Yes. Cheapflights offers flight deals from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Ontario (average of $246). Flying from Dallas/Fort Worth Airport 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 Dallas/Fort Worth to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Dallas/Fort Worth to Ontario

Discover the top 5 airlines that operate flights from Dallas/Fort Worth 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 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$82Average$180FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$84Average$148FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$139Average$323FlexibilityNo cancel feeOn-time63%
DeltaCheapest$157Average$280FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$176Average$328FlexibilityNo cancel feeOn-time71%

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