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$63+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheapflights Tip: The best prices from Dallas/Fort Worth to Ontario are usually found in February or September, booked 71 days in advance, depart on a Thursday or Wednesday 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 July 1, 2025.

Round-trip from

$100
(Frontier)

One-way from

$63
(Justfly.com)

Popular in

January

Cheapest in

February

Average price

$254

Good round-trip deal

$202 or less

Good one-way deal

$116 or less
From Dallas/Fort Worth to Ontario
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One-way flight from Dallas/Fort Worth to Ontario
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Highest demand for flights based on searches. 7% potential increase in price ($16 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 July 2025
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Price to beat on a round-trip flight from Dallas/Fort Worth to Ontario.
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Price to beat on a one-way flight from Dallas/Fort Worth to Ontario.
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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 July 1, 2025.

This Frontier deal was found by Cheapflights users on 6/29. 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 8/96:09 pmDFW - ONT
Nonstop3h 05mFrontier
Sat 8/2312:04 pmONT - DFW
Nonstop3h 16mFrontier
Deal found 6/29$100

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 1, 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

Sat 8/9

6:09 pm-7:14 pm

Nonstop3h 05m

Ontario

Sat 8/23

12:04 pm-5:20 pm

Nonstop3h 16m

$100

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Tue 7/29

8:00 am-9:09 am

Nonstop3h 09m

$63

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sat 8/2

9:33 pm-10:34 pm

Nonstop3h 01m

$90

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Wed 10/22

11:00 am-6:30 pm

1 stop9h 30m

$100

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Thu 9/4

9:30 am-5:37 pm

2 stops10h 07m

$113

DallasOntario

DFW - ONT

DFWONT

Dallas/Fort Worth

Sat 8/2

8:15 am-12:14 pm

1 stop5h 59m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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

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 June 27, 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 71 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 July 1, 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 27% 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 June 29, 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.

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 1, 2025.
Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Ontario, such as Alaska Airlines, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.1

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

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.1

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
7,974 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Frontier
5.9
Fair
3,289 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.1

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 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 9 inbound flights from Dallas/Fort Worth per day. 5 airlines have flights to Ontario from Dallas/Fort Worth on a regular basis.

  • What is the cheapest airline to fly from Dallas/Fort Worth Airport to Ontario round-trip?

    Frontier, at $100, was found to be the cheapest airline from Dallas/Fort Worth Airport to Ontario.. Frontier is priced at 54% 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?

    $63 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 Alaska Airlines, with prices starting from $90 and $101, 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 (75%), Qatar Airways (61%), American Airlines (55%).

  • 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 $209, our data indicates the cheapest price to be $84. The most popular route (Dallas/Fort Worth - Ontario), is priced around $101.

  • 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

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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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$180FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$84Average$148FlexibilityNo cancel feeOn-time65%
DeltaCheapest$178Average$280FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$179Average$330FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$210Average$364FlexibilityNo cancel feeOn-time63%

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