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$134+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Find cheap flights from Dallas/Fort Worth to Ontario with Cheapflights

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Cheapflights Tip: The best prices from Dallas/Fort Worth to Ontario are usually found in September or February, booked 87 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap 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 July 30, 2026.

This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:58 pm
DFW
-
ONT
1 stop6h 52m
Frontier
Thu 8/208:17 am
ONT
-
DFW
Nonstop3h 14m
Frontier
Deal found 7/29$184
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:32 am
DFW
-
ONT
Nonstop3h 06m
Frontier
Thu 8/2010:49 am
ONT
-
DFW
1 stop7h 47m
Frontier
Deal found 7/29$185
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:32 am
DFW
-
ONT
Nonstop3h 06m
Frontier
Tue 9/87:56 pm
ONT
-
DFW
1 stop26h 24m
Frontier
Deal found 7/30$186
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.
Fri 9/115:22 pm
DFW
-
ONT
Nonstop3h 17m
Frontier
Thu 9/177:46 pm
ONT
-
DFW
Nonstop3h 08m
Frontier
Deal found 7/30$187
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:48 pm
DFW
-
ONT
1 stop7h 07m
Frontier
Tue 10/1311:16 am
ONT
-
DFW
1 stop11h 39m
Frontier
Deal found 7/29$188
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:50 pm
DFW
-
ONT
1 stop23h 09m
Frontier
Wed 10/148:07 am
ONT
-
DFW
Nonstop3h 05m
Frontier
Deal found 7/30$189
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:13 pm
DFW
-
ONT
1 stop6h 37m
Frontier
Mon 8/248:17 am
ONT
-
DFW
Nonstop3h 14m
Frontier
Deal found 7/29$190
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sat 8/227:30 am
DFW
-
ONT
Nonstop3h 06m
Frontier
Tue 8/256:00 am
ONT
-
DFW
1 stop10h 03m
Frontier
Deal found 7/28$191
This Frontier deal was found by Cheapflights users on 7/26. 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 9/27:30 am
DFW
-
ONT
Nonstop3h 06m
Frontier
Tue 9/89:37 am
ONT
-
DFW
Nonstop3h 09m
Frontier
Deal found 7/26$193
This Super.com deal was found by Cheapflights users on 7/26. 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 8/277:32 am
DFW
-
ONT
Nonstop3h 06m
Frontier
Mon 8/318:17 am
ONT
-
DFW
Nonstop3h 14m
Frontier
Deal found 7/26$195

Find 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 July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$184
(Frontier)

One-way from

$134
(CheapOair)

Popular in

June

Cheapest in

September

Average price

$357

Good round-trip deal

$240 or less

Good one-way deal

$189 or less
Provider with most accurate pricing for Dallas/Fort Worth-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dallas/Fort Worth-Ontario flights.
Search Deals
From Dallas/Fort Worth to Ontario
Search Deals
One-way flight from Dallas/Fort Worth to Ontario
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Dallas/Fort Worth to Ontario.
Search Deals
Price to beat on a one-way flight from Dallas/Fort Worth to Ontario.
Search Deals

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 July 30, 2026.
Use the filters below to find and compare flights from Dallas/Fort Worth Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Mon 8/17

5:09 pm-8:53 pm

1 stop5h 44m

Ontario

Mon 8/24

1:56 pm-11:59 pm

2 stops8h 03m

$280

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Wed 8/19

4:15 pm-11:34 pm

2 stops9h 19m

Ontario

Sat 8/22

12:00 pm-11:59 pm

1 stop9h 59m

$280

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Wed 8/26

4:15 pm-11:34 pm

2 stops9h 19m

Ontario

Sat 8/29

7:05 am-7:31 pm

1 stop10h 26m

$280

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 8/27

5:45 am-12:12 pm

2 stops8h 27m

Ontario

Mon 8/31

1:56 pm-10:29 pm

1 stop6h 33m

$280

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sat 8/22

1:48 pm-8:01 pm

2 stops8h 13m

Ontario

Tue 8/25

1:56 pm-11:59 pm

2 stops8h 03m

$286

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 9/10

7:50 am-4:35 pm

2 stops10h 45m

Ontario

Tue 9/15

12:17 pm-11:57 pm

1 stop9h 40m

$332

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Mon 9/14

1:44 pm-11:47 pm

2 stops12h 03m

Ontario

Mon 9/21

1:04 pm-11:57 pm

2 stops8h 53m

$338

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sat 8/22

2:20 pm-6:12 pm

1 stop5h 52m

Ontario

Sat 8/29

1:56 pm-11:59 pm

2 stops8h 03m

$370

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sat 8/15

8:53 am-12:50 pm

1 stop5h 57m

Ontario

Mon 8/17

7:13 pm-8:51 am

2 stops11h 38m

$370

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Wed 8/26

5:15 am-12:50 pm

2 stops9h 35m

Ontario

Sat 8/29

8:00 am-8:38 pm

2 stops10h 38m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Dallas/Fort Worth to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dallas/Fort Worth to Ontario in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Dallas/Fort Worth Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dallas/Fort Worth Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Dallas/Fort Worth Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dallas/Fort Worth Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Dallas/Fort Worth Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

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, September is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Ontario (average of $200). Flying from Dallas/Fort Worth Airport to Ontario in June is currently the most expensive (average of $368). 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 July 30, 2026.

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 at noon, which can drop the price by up to 24% versus a flight in the evening.

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 July 25, 2026.

Travelers seeking maximum savings on their Dallas/Fort Worth Airport to Ontario flight should consider departing on Wednesday at noon 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.

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

Airfare is typical for this route at the moment.

Dallas/Fort Worth Airport to Ontario flights typically cost between $173 and $306 in August.
The cheapest round-trip price found within the last 5 days was $184 on Frontier (Aug 19-Aug 20).

The best insider tips for Dallas/Fort Worth Airport to Ontario flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Dallas/Fort Worth Airport to Ontario trip
Our travel experts
Bill Fink

Bill Fink

Expert on ONT

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 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

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 July 30, 2026.
Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Ontario, such as Southwest,American Airlines, andFrontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,227 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
Southwest
8.0
Very good
4,227 reviews
Southwest
8.0
Very good
4,227 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
American Airlines
7.1
Good
11,842 reviews
Southwest
8.0
Very good
4,227 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
Frontier
5.6
Fair
2,747 reviews
Southwest
8.0
Very good
4,227 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

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 16 inbound flights from Dallas/Fort Worth per day. 3 airlines have flights to Ontario from Dallas/Fort Worth on a regular basis.

  • How long is the flight from Dallas/Fort Worth Airport to Ontario?

    Departing from Dallas/Fort Worth Airport to Ontario will take you 5h 44m. There are 1185 mi between Dallas/Fort Worth Airport and Ontario. This flight may include one or multiple stops.

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

    Frontier, at $81, was found to be the cheapest airline from Dallas/Fort Worth Airport to Ontario.Alternate airlines to your destination round-trip include Southwest and American Airlines. Frontier is priced at 70% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Dallas/Fort Worth Airport to Ontario one-way?

    $49 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $95 and $124, respectively.

  • 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: GOL (100%), Royal Jordanian (72%), Frontier (69%).

  • 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 $625, our data indicates the cheapest price to be $116. The most popular route (Dallas/Fort Worth - Ontario), is priced around $156.

  • 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, September is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Ontario (average of $200). Flying from Dallas/Fort Worth Airport to Ontario in June is currently the most expensive (average of $368). 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.
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Top 3 airlines flying from Dallas/Fort Worth to Ontario

Discover the top 3 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 July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$81Average$246FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$159Average$401FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$177Average$376FlexibilityNo cancel feeOn-time71%

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