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$74+ Cheap flights from Ontario (ONT) to Dallas

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DFW
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Dallas are usually found in April or August, booked 81 days in advance, depart on a Saturday or Tuesday and return on a Thursday

Cheap flight deals from Ontario to Dallas

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Dallas (A78). 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 June 12, 2025.

Round-trip from

$148
(Priceline)

One-way from

$74
(Priceline)

Popular in

November

Cheapest in

April

Average price

$286
From Ontario to Dallas
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One-way flight from Ontario to Dallas
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Highest demand for flights based on searches. 10% potential increase in price ($25 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 June 2025
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Find flight deals from Ontario to Dallas

Cheapest flights from Ontario to Dallas
Explore the most affordable flight options available from Ontario to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This CheapOair deal was found by Cheapflights users on 6/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/168:09 pmONT - DFW
Nonstop3h 15mFrontier
Sat 8/239:45 amDFW - ONT
Nonstop3h 04mFrontier
Deal found 6/12$149
This Southwest deal was found by Cheapflights users on 6/9. 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 8/610:20 amONT - DAL
Nonstop2h 55mSouthwest
Wed 8/135:45 pmDAL - ONT
Nonstop3h 05mSouthwest
Deal found 6/9$179
This Hawaiian Airlines deal was found by Cheapflights users on 6/9. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:10 pmONT - DFW
1 stop8h 30mHawaiian Airlines
Wed 8/134:46 pmDFW - ONT
1 stop9h 13mHawaiian Airlines
Deal found 6/9$202
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/96:10 pmONT - DFW
1 stop8h 30mAlaska Airlines
Mon 8/116:16 pmDFW - ONT
1 stop7h 57mAlaska Airlines
Deal found 6/10$232
This Delta deal was found by Cheapflights users on 6/10. 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 7/1610:05 pmONT - DFW
1 stop8h 37mDelta
Sat 7/196:09 pmDFW - ONT
1 stop7h 08mDelta
Deal found 6/10$237
This Delta deal was found by Cheapflights users on 6/10. 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 7/1610:05 pmONT - DAL
1 stop9h 05mDelta
Tue 7/224:00 pmDAL - ONT
1 stop8h 27mDelta
Deal found 6/10$237
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1012:59 amONT - DFW
Nonstop3h 00mAmerican Airlines
Fri 7/189:59 pmDFW - ONT
Nonstop2h 58mAmerican Airlines
Deal found 6/11$243

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Dallas 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 June 12, 2025.
Use the filters below to find and compare flights from Ontario to Dallas that are best for you.

Fly from

Ontario

Fly to

Dallas

Route

Depart

Return

Price

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Tue 8/5

10:06 am-3:19 pm

Nonstop3h 13m

Dallas/Fort Worth

Sat 8/16

6:09 pm-7:14 pm

Nonstop3h 05m

$148

OntarioDallas

ONT - DAL

ONTDAL

Ontario

Wed 8/6

10:20 am-3:15 pm

Nonstop2h 55m

Dallas Love Field

Wed 8/13

5:45 pm-6:50 pm

Nonstop3h 05m

$179

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Wed 8/6

6:10 pm-4:40 am

1 stop8h 30m

Dallas/Fort Worth

Wed 8/13

4:46 pm-11:59 pm

1 stop9h 13m

$202

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Sat 8/9

6:10 pm-4:40 am

1 stop8h 30m

Dallas/Fort Worth

Mon 8/11

6:16 pm-12:13 am

1 stop7h 57m

$232

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Wed 7/16

6:00 am-2:42 pm

1 stop6h 42m

Dallas/Fort Worth

Tue 7/22

4:25 pm-10:27 pm

1 stop8h 02m

$237

OntarioDallas

ONT - DAL

ONTDAL

Ontario

Wed 7/16

10:05 pm-9:10 am

1 stop9h 05m

Dallas Love Field

Tue 7/22

4:00 pm-10:27 pm

1 stop8h 27m

$237

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Thu 7/10

12:59 am-5:59 am

Nonstop3h 00m

Dallas/Fort Worth

Fri 7/18

9:59 pm-10:57 pm

Nonstop2h 58m

$243

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Tue 8/12

10:06 am-3:19 pm

Nonstop3h 13m

$74

OntarioDallas

ONT - DAL

ONTDAL

Ontario

Sat 8/30

6:45 am-11:45 am

Nonstop3h 00m

$89

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Wed 8/6

6:10 am-11:13 am

Nonstop3h 03m

$90

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 16 results
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The best insider tips for Ontario to Dallas 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 Ontario to Dallas trip
Airports
ONT

ONT offers quick security checks at both terminals, making it a convenient choice for business travelers avoiding LAX's long lines.

Read more about ONTby Bill Fink
DFW

DFW offers easy terminal connections via Skylink, making navigation smooth for arriving passengers.

Read more about DFWby Chris Dong
DAL

DAL's proximity to downtown makes it a convenient choice, with rideshares and public transit options readily available.

Read more about DALby Paul Rubio
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
Paul Rubio

Paul Rubio

Expert on DAL

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

Best time to book a flight from Ontario to Dallas

Have a flexible travel schedule? Discover the best time to fly to Dallas from Ontario 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 Ontario to Dallas

How far ahead should I book a flight from Ontario to Dallas?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Dallas. Price data was last updated on June 9, 2025.

The best time to book flights from Ontario to Dallas is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Ontario to Dallas?

Currently, August is the cheapest month in which you can book a flight from Ontario to Dallas (average of $216). Flying from Ontario to Dallas in March is currently the most expensive (average of $295). 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 ONT to DFW?

Find hourly flight availability from Ontario to Dallas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Dallas in the afternoon. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Ontario to Dallas?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Dallas. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Dallas flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Ontario to Dallas

Explore weekly flight availability from Ontario to Dallas. 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 June 12, 2025.

The most flights from ONT to A78 are scheduled on a Monday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in Dallas by month

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

In terms of precipitation, rainfall in Dallas ranges from 1.9 - 4.9 inches per month. May is typically the wettest month, when rainfall can reach 4.9 in. August is typically the driest time to visit Dallas when rainfall is around 1.9 in.

Temperature in Dallas by month

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

If weather is an important factor for your trip to Dallas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Dallas

Get insights into the airlines that provide service to Dallas. 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 Dallas. Reviews last updated June 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Ontario to Dallas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

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 Ontario to Dallas. 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 from for flights from Ontario to Dallas?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Dallas. 6 airlines have flights from Ontario to Dallas on a regular basis. Booking flights from Ontario to Dallas should not be difficult; the airport handles an average of 18 outbound flights to Dallas per day.

  • What are the cheapest airlines flying from Ontario to Dallas round-trip?

    Our cheapest airline available from Ontario to Dallas is Frontier. Our recent data shows that you can find tickets from as low as $148 on this airline. Additional options worth looking into are Southwest and Hawaiian Airlines, starting at $179 and $202 round-trip. These flights start at 36% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Dallas one-way?

    $74 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and American Airlines, with prices starting from $89 and $90, respectively.

  • What are the most reliable airlines from Ontario to Dallas?

    Consider Iberia (78%), American Airlines (77%) or British Airways (77%) when booking your flight. These represent the most reliable airlines when flying from Ontario to Dallas.

  • What are the cheapest flights from Ontario to Dallas?

    The cheapest flight price from Ontario to Dallas is $70. On average you can expect to pay $1,155. The most popular route, (Ontario - Dallas/Fort Worth), can usually be booked for $155.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Dallas 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 Ontario to Dallas?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Dallas (average of $216). Flying from Ontario to Dallas in March is currently the most expensive (average of $295). 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 Ontario to Dallas

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Ontario to Dallas

Discover the top 6 airlines that operate flights from Ontario to Dallas. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$187FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$88Average$175FlexibilityNo cancel feeOn-time65%
DeltaCheapest$173Average$550FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$181Average$404FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$203Average$370FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$225Average$258FlexibilityNo cancel feeOn-time75%

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