What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ontario to Dallas flights?

Over the last year, American Airlines have had the lowest number of delays on this route, with just 14% of flights being delayed.

How often are flights from Ontario to Dallas delayed?

About 14% of weekly flights between Ontario and Dallas have experienced delays in the past year, with the average delay time being 145 minutes.

What is the most punctual flight time for Ontario to Dallas flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

How long is the flight from Ontario to Dallas?

Airlines like Southwest and Delta fly from Ontario to Dallas in about 4h 35m. The time it takes to get you to your destination can typically vary by up to 7h 11m. Airlines will cover a distance of 1196 mi. This flight may include one or multiple stops.

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

Our cheapest airline available from Ontario to Dallas is Spirit Airlines. Our recent data shows that you can find tickets from as low as $78 on this airline. Additional options worth looking into are Frontier and Delta, starting at $88 and $153 round-trip. These flights start at 66% lower than the current average price 3 months from now.

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

$68 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 Delta, with prices starting from $90 and $109, respectively.

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

The best time to book flights from Ontario to Dallas is 48 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, April is the cheapest month in which you can book a flight from Ontario to Dallas (average of $69). Flying from Ontario to Dallas in July is currently the most expensive (average of $109). 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 day to fly from Ontario to Dallas?

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

Weekly flight availability from Ontario to Dallas

The most flights from ONT to A78 are scheduled on a Wednesday (19 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

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.

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).

What are the cheapest flights from Ontario to Dallas?

The cheapest flight price from Ontario to Dallas is $79. On average you can expect to pay $719. The most popular route, (Ontario - Dallas/Fort Worth), can usually be booked for $103.

What are the most reliable airlines from Ontario to Dallas?

Consider Iberia (82%), British Airways (81%) or American Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from Ontario to Dallas.

What are the most popular airlines that fly from Ontario to Dallas?

Frontier, American Airlines and Southwest are the most popular airlines when flying from Ontario to Dallas.

What is the cheapest time of day to fly from ONT to DFW?

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 40% on your trip compared to booking a flight at noon.

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 11 outbound flights to Dallas per day.

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.

$59+ Flights from Ontario to Dallas

Round-trip from	$128 (Super.com)
One-way from	$59 (FlightHub)
Popular in	November
Cheapest in	April
Average price	$295

ONT

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

DFW

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

DAL

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

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$78	Average$175	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$88	Average$195	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$153	Average$472	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$163	Average$345	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$187	Average$447	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$225	Average$267	FlexibilityNo cancel fee	On-time75%

$59+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Ontario to Dallas are usually found in April or March, booked 48 days in advance, depart on a Thursday or Saturday and return on a Thursday

Find flight deals from Ontario to Dallas

Cheapest flights from Ontario to DallasExplore 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 November 26, 2025.

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 November 26, 2025.

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Best time to book a flight from Ontario to Dallas

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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 November 21, 2025.

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

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 November 26, 2025.

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.

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 November 26, 2025.

How often are flights from Ontario to Dallas delayed?

What is the most punctual flight time for Ontario to Dallas flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Ontario to Dallas flights?

The best insider tips for Ontario to Dallas flights

Cheapflights partnered with top experts to bring you the best recommendations for your Ontario to Dallas trip

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ONT

DFW

DAL

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Reviews of airlines servicing Dallas

Read reviews from past customers who have flown Alaska Airlines, Southwest, and American Airlines from Ontario to Dallas. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

How long is the flight from Ontario to Dallas?

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

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

What are the most reliable airlines from Ontario to Dallas?

What are the cheapest flights from Ontario to Dallas?

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

How can I find direct flights from Ontario to Dallas?

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

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

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Alternative routes for Ontario to Dallas

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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 November 26, 2025.