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$67+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find cheap flights from Dallas/Fort Worth to Ontario with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Dallas/Fort Worth to Ontario are usually found in February or April, booked 85 days in advance, depart on a Thursday or Tuesday and return on a Thursday

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 October 29, 2025.

This Frontier deal was found by Cheapflights users on 10/27. 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 12/158:00 amDFW - ONT
1 stop8h 04mFrontier
Tue 12/1612:30 pmONT - DFW
Nonstop3h 05mFrontier
Deal found 10/27$107
This Frontier deal was found by Cheapflights users on 10/26. 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.
Thu 11/135:15 amDFW - ONT
Nonstop3h 12mFrontier
Sun 11/164:15 pmONT - DFW
Nonstop3h 15mFrontier
Deal found 10/26$110
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:00 amDFW - ONT
Nonstop3h 27mFrontier
Fri 12/56:19 pmONT - DFW
Nonstop3h 03mFrontier
Deal found 10/28$111
This Frontier deal was found by Cheapflights users on 10/27. 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 11/106:15 amDFW - ONT
Nonstop3h 14mFrontier
Thu 11/1310:05 amONT - DFW
1 stop7h 47mFrontier
Deal found 10/27$112
This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:15 amDFW - ONT
Nonstop3h 14mFrontier
Tue 11/118:00 amONT - DFW
1 stop26h 59mFrontier
Deal found 10/27$113
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:01 pmDFW - ONT
Nonstop3h 21mFrontier
Sun 1/116:56 pmONT - DFW
Nonstop3h 03mFrontier
Deal found 10/28$114
This CheapOair deal was found by Cheapflights users on 10/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:16 pmDFW - ONT
Nonstop3h 19mFrontier
Fri 12/125:18 pmONT - DFW
1 stop10h 42mFrontier
Deal found 10/26$115
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/54:12 pmDFW - ONT
Nonstop3h 22mFrontier
Sun 12/74:17 pmONT - DFW
Nonstop3h 01mFrontier
Deal found 10/28$116
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/54:12 pmDFW - ONT
Nonstop3h 22mFrontier
Mon 12/85:18 pmONT - DFW
1 stop10h 50mFrontier
Deal found 10/28$118
This CheapOair deal was found by Cheapflights users on 10/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/210:59 pmDFW - ONT
1 stop14h 11mFrontier
Tue 12/1612:30 pmONT - DFW
Nonstop3h 05mFrontier
Deal found 10/26$120
This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:16 pmDFW - ONT
Nonstop3h 19mFrontier
Sun 12/74:17 pmONT - DFW
Nonstop3h 01mFrontier
Deal found 10/27$121

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 October 29, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$107
(Frontier)

One-way from

$67
(Trip.com)

Popular in

January

Cheapest in

February

Average price

$264

Good round-trip deal

$184 or less

Good one-way deal

$109 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. 4% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 29, 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

Fri 12/5

1:37 pm-11:58 pm

2 stops12h 21m

Ontario

Mon 12/8

12:40 pm-11:50 pm

1 stop9h 10m

$222

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 12/11

5:19 am-11:02 am

1 stop7h 43m

Ontario

Mon 12/15

4:49 pm-9:05 am

2 stops14h 16m

$222

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Wed 12/24

5:03 pm-11:59 pm

1 stop8h 56m

Ontario

Tue 1/6

6:05 pm-5:06 am

1 stop9h 01m

$233

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Fri 12/12

7:50 am-12:34 pm

1 stop6h 44m

Ontario

Tue 12/16

6:40 am-10:04 pm

2 stops13h 24m

$248

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Wed 1/21

12:26 pm-4:13 pm

1 stop5h 47m

Ontario

Mon 1/26

7:30 am-9:16 pm

2 stops11h 46m

$248

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Tue 12/9

5:19 am-4:09 pm

2 stops12h 50m

Ontario

Tue 12/16

6:40 am-10:04 pm

2 stops13h 24m

$253

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sun 11/16

5:25 am-11:06 am

1 stop7h 41m

Ontario

Wed 11/19

10:25 pm-9:05 am

1 stop8h 40m

$263

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Tue 12/16

5:19 am-11:02 am

1 stop7h 43m

Ontario

Tue 1/6

7:30 am-9:16 pm

2 stops11h 46m

$273

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Fri 12/5

4:23 pm-11:04 pm

1 stop8h 41m

Ontario

Wed 12/10

7:05 am-5:26 pm

1 stop8h 21m

$283

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 11/27

7:00 am-3:21 pm

1 stop10h 21m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 20 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Dallas/Fort Worth Airport-Ontario flight deals on Cheapflights vs. CheapOair >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 CheapOair the most. CheapOair 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?

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 October 24, 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, January is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Ontario (average of $62). Flying from Dallas/Fort Worth Airport to Ontario in July is currently the most expensive (average of $106). 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 October 29, 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 at noon, which can drop the price by up to 29% 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 October 26, 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.

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.

Read more about ONTby Bill Fink
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

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 October 29, 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.
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

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.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

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.
Delta
7.9
Good
7,992 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

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.
American Airlines
7.2
Good
11,032 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

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.
Spirit Airlines
6.3
Okay
8,114 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

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.
Frontier
5.8
Fair
3,124 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

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 6 inbound flights from Dallas/Fort Worth per day. 5 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 12h 21m. There are 1185 mi between Dallas/Fort Worth Airport and Ontario.

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

    Spirit Airlines, at $64, was found to be the cheapest airline from Dallas/Fort Worth Airport to Ontario.Alternate airlines to your destination round-trip include Frontier and Southwest. Spirit Airlines is priced at 71% 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?

    $105 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from $109 and $109, 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: Frontier (71%), American Airlines (63%), British Airways (59%).

  • 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 $227, our data indicates the cheapest price to be $49. The most popular route (Dallas/Fort Worth - Ontario), is priced around $59.

  • 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, January is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Ontario (average of $62). Flying from Dallas/Fort Worth Airport to Ontario in July is currently the most expensive (average of $106). 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 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$153FlexibilityNo cancel feeOn-time65%
FrontierCheapest$84Average$185FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$139Average$309FlexibilityNo cancel feeOn-time63%
DeltaCheapest$157Average$283FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$170Average$334FlexibilityNo cancel feeOn-time71%

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