DFW - ONT

$120 Find Cheap Flights from Dallas/Fort Worth Airport to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dallas/Fort Worth to Ontario departing on 7/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dallas to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dallas to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$193
Typical prices: $344-$184
Frontier
Wed 7/1Wed 7/1
DFW - ONT • 1 stop
Cheapest non-stop
$212
Typical prices: $229-$118
Frontier
Wed 9/2Wed 9/9
DFW - ONT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
American's Main Cabin Extra offers early boarding perks.
Frontier's Economy Bundle includes a carry-on bag.
Expert advice
Expert advice
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Expert advice
Expert advice
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Nonstop flights
You can fly direct with American Airlines and Frontier. Average duration is 3h 09m
Direct flights
Direct flights
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Direct flights
Direct flights
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When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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Start a new search
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We hope you love your trip to Ontario!
Flight Deals
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Flight Deals

Cheap Flights from Dallas/Fort Worth to Ontario (DFW-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dallas/Fort Worth to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dallas/Fort Worth to Ontario

Wed, Jul 1 - Wed, Jul 1
Frontier Logo
5:18 am - 10:05 am
DFW
-
ONT
6h 47m
1 stop
Frontier Logo
6:47 pm - 11:59 pm
ONT
-
DFW
3h 12mnonstop
$193Frontier
Fri, Jul 3 - Sun, Jul 5
Frontier Logo
6:18 pm - 10:05 am
DFW
-
ONT
17h 47m
1 stop
Frontier Logo
8:17 am - 1:31 pm
ONT
-
DFW
3h 14mnonstop
$202Frontier
Tue, Jun 16 - Wed, Jun 17
Frontier Logo
3:35 pm - 4:48 pm
DFW
-
ONT
3h 13mnonstop
Frontier Logo
6:00 am - 3:23 pm
ONT
-
DFW
7h 23m
1 stop
$203Frontier
Mon, Jun 22 - Tue, Jun 23
Frontier Logo
3:35 pm - 4:48 pm
DFW
-
ONT
3h 13mnonstop
Frontier Logo
10:50 am - 8:36 pm
ONT
-
DFW
7h 46m
1 stop
$208Frontier
Wed, Sep 2 - Wed, Sep 9
Frontier Logo
3:35 pm - 4:48 pm
DFW
-
ONT
3h 13mnonstop
Frontier Logo
8:07 am - 1:12 pm
ONT
-
DFW
3h 05mnonstop
$212Frontier
Wed, Sep 9 - Tue, Sep 15
Frontier Logo
6:00 am - 7:12 am
DFW
-
ONT
3h 12mnonstop
Frontier Logo
8:07 am - 1:12 pm
ONT
-
DFW
3h 05mnonstop
$214Frontier
Mon, Aug 10 - Tue, Aug 11
Frontier Logo
5:18 am - 10:04 am
DFW
-
ONT
6h 46m
1 stop
Frontier Logo
8:17 am - 1:31 pm
ONT
-
DFW
3h 14mnonstop
$220Frontier
Wed, Sep 2 - Wed, Sep 9
Frontier Logo
3:35 pm - 4:48 pm
DFW
-
ONT
3h 13mnonstop
Frontier Logo
9:49 pm - 5:37 am
ONT
-
DFW
5h 48m
1 stop
$222Frontier
Sat, Jul 18 - Sun, Jul 19
Frontier Logo
7:09 pm - 11:50 pm
DFW
-
ONT
6h 41m
1 stop
Frontier Logo
8:17 am - 1:31 pm
ONT
-
DFW
3h 14mnonstop
$224Frontier
Wed, Jul 1 - Wed, Jul 1
Frontier Logo
5:18 am - 3:08 pm
DFW
-
ONT
11h 50m
2 stops
Frontier Logo
6:47 pm - 11:59 pm
ONT
-
DFW
3h 12mnonstop
$225Frontier
Booking Insights

KAYAK's insights & trends for Dallas/Fort Worth to Ontario flights

Get data-powered insights and trends into flights from Dallas/Fort Worth to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Dallas/Fort Worth Airport to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Dallas/Fort Worth Airport to Ontario departing in July.

What’s the cheapest day of the week to fly from Dallas/Fort Worth Airport to Ontario?

The average price of all round-trip flights from Dallas/Fort Worth Airport to Ontario clicked on KAYAK for each day over the last 12 months.

When flying from Dallas/Fort Worth Airport to Ontario, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to Dallas/Fort Worth Airport, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Dallas/Fort Worth Airport to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dallas/Fort Worth Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Dallas/Fort Worth Airport to Ontario is September, where tickets cost $179 (return) on average. On the other hand, the most expensive months are April and May, where the average cost of round-trip tickets is $299 and $298 respectively.

How far in advance should I book a flight from Dallas/Fort Worth Airport to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Dallas/Fort Worth Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Dallas/Fort Worth Airport to Ontario, you should book around 2 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Expert advice

Expert advice for your flight from Dallas/Fort Worth to Ontario

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Ramsey Qubein

Ramsey Qubein

Expert on DFW

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Good to know

Low seasonJanuary
Cheapest flight$120
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 5% increase in price.
Flight from Dallas/Fort Worth Airport to Ontario

When to book flights from Dallas/Fort Worth to Ontario

Are your dates flexible? Find out the best times to travel from Dallas/Fort Worth to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Dallas/Fort Worth to Ontario: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Dallas/Fort Worth to Ontario 
FraxysFlew with American Airlines
DFW
-
ONT
Feb 2026
Bring your own snacks or sandwich for dinner in the plane.
JoelFlew with American Airlines
DFW
-
ONT
May 2024
Dallas is a very spread out airport, jus make sure that you have enough time to transfer during layovers. Also all the restaurants close fairly early

FAQs for booking Dallas/Fort Worth Airport to Ontario flights

  • Does Dallas/Fort Worth Airport (DFW) offer accessible services?

    DFW is a fully accessible airport. The airport has reserved parking spaces that can be accessed using valid disabled parking permits. They offer wheelchair assistance and dedicated seating for passengers with reduced mobility. Hard-of-hearing passengers have TDD telephones for requesting assistance and visual paging services. Low-vision passengers are catered to with signage in Braille.

  • What are the transport options from Downtown Dallas to Dallas/Fort Worth Airport?

    The Dallas Area Rapid Transport has the Orange Line and Green Line Trains operating every 20 minutes from West End Station to DFW Airport Station. The TreTrain of the Dallas Area Rapid Transit operates with an hourly interval, linking Victory Station in Downtown Dallas to Centerport Station in Irving. From the Centerport Station, you can use Line 431 bus to connect to Terminal B in DFW Airport.

  • Which airlines flying from Dallas/Fort Worth to Ontario have sustainable practices?

    Frontier Airlines is among the sustainable airlines flying the DFW to ONT route. It has adopted several sustainable practices, including fuel efficiency and greenhouse gas emission reduction. They are also replacing their old fleet with a new modernized fleet, using sustainable aviation fuel, and optimizing flight routes. They have also introduced carbon offsetting, waste reduction, and recycling programs to meet their sustainable goals.

  • Can a minor travel unaccompanied from Dallas/Fort Worth to Ontario?

    Unaccompanied minors traveling with United from DFW to ONT must be aged 5 to 14 years old. You must accompany your minor for check-in at the airport at least 30 minutes before departure. During check-in, you must provide relevant travel documents, including the minor’s consent form, which the parents or legal guardian fills out. You must also provide your contact information and that of the adult receiving the minor at the destination airport.

  • What is the cheapest flight from Dallas/Fort Worth Airport to Ontario?

    In the last 3 days, the lowest price for a flight from Dallas/Fort Worth Airport to Ontario was $120 for a one-way ticket and $193 for a round-trip.

  • Do I need a passport to fly between Dallas/Fort Worth Airport and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Dallas/Fort Worth Airport to Ontario?

    Dallas/Fort Worth Airport airport is called Dallas/Fort Worth and the only airport in Ontario is Ontario.

  • Which airlines offer Wi-Fi service onboard planes from Dallas/Fort Worth Airport to Ontario?

    American Airlines, Delta, JetBlue, and Alaska Airlines offer inflight Wi-Fi service on the Dallas/Fort Worth Airport to Ontario flight route.

  • Which aircraft models fly most regularly from Dallas/Fort Worth Airport to Ontario?

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the Dallas/Fort Worth Airport to Ontario flight route.

  • Which airline alliances offer flights from Dallas/Fort Worth Airport to Ontario?

    oneworld is the only airline alliance operating flights between Dallas/Fort Worth Airport and Ontario.

  • On which days can I fly direct from Dallas/Fort Worth Airport to Ontario?

    There are nonstop flights from Dallas/Fort Worth Airport to Ontario on a daily basis.

  • Which is the best airline for flights from Dallas to Ontario, Southwest or American Airlines?

    The two airlines most popular with KAYAK users for flights from Dallas to Ontario are Southwest and American Airlines. With an average price for the route of $363 and an overall rating of 7.9, Southwest is the most popular choice. American Airlines is also a great choice for the route, with an average price of $339 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Dallas/Fort Worth Airport to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dallas/Fort Worth Airport to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dallas/Fort Worth Airport to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Dallas/Fort Worth Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dallas/Fort Worth Airport to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Dallas/Fort Worth Airport with another airline. Booking your flights between Dallas/Fort Worth Airport and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dallas/Fort Worth Airport to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Dallas/Fort Worth Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Dallas/Fort Worth Airport to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $146 or less one-way and $258 or less round-trip.
  • Consider flying business or first-class from Dallas/Fort Worth International Airport (DFW) to Ontario International Airport (ONT) with American Airlines, Delta Air Lines, or United Airlines. Business-class passengers get complimentary access to the American Airlines Admirals Club Airside of Terminals A, B, C, D, and E, Delta Sky Club Airside of Terminal E, and United Club lounges Airside of Terminal E.
  • Flights from DFW to ONT often include at least a stop. The stopover cities include Denver (DEN) by Frontier, Las Vegas (LAS) by Frontier and Spirit, and Phoenix (PHX) by American.
  • Consider flying with American Airlines from DFW to ONT for a favorable carry-on baggage allowance at no additional charge. The airline allows you to bring a carry-on bag with dimensions limits of 22 x 14 x 9 inches and maximum weight of 40 lbs. You can also bring a personal item on board.
  • If you’re traveling with your pet from DFW to ONT, consider flying with Delta Air Lines. The airline allows small cats, dogs, and household birds who have attained at least 16 weeks of age in the cabin for a fee. You must secure your pet in a carrier with maximum dimensions of 18 x 11 x 11 inches. The combined weight of your pet and its carrier must also not exceed 18 lbs.
  • You can enjoy convenience when traveling with your child from DFW to ONT with United Airlines. The airline offers family-friendly perks, including early boarding, family seating, in-flight entertainment suitable for children, and child-friendly changing rooms.

Prefer to fly direct from Dallas/Fort Worth Airport to Ontario?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Dallas/Fort Worth to Ontario.
Find which airlines fly direct from Dallas/Fort Worth Airport to Ontario Airport, which days they fly and book direct flights.

Direct departures

Dallas/Fort Worth to Ontario

Monday

American Airlines,Frontier

American Airlines,Frontier

Tuesday

American Airlines,Frontier

American Airlines,Frontier

Wednesday

American Airlines,Frontier

American Airlines,Frontier

Thursday

American Airlines,Frontier

American Airlines,Frontier

Friday

American Airlines,Frontier

American Airlines,Frontier

Saturday

American Airlines,Frontier

American Airlines,Frontier

Sunday

American Airlines,Frontier

American Airlines,Frontier

See more direct flights

Direct returns

Ontario to Dallas/Fort Worth

Monday

American Airlines,Frontier

American Airlines,Frontier

Tuesday

American Airlines,Frontier

American Airlines,Frontier

Wednesday

American Airlines,Frontier

American Airlines,Frontier

Thursday

American Airlines,Frontier

American Airlines,Frontier

Friday

American Airlines,Frontier

American Airlines,Frontier

Saturday

American Airlines,Frontier

American Airlines,Frontier

Sunday

American Airlines,Frontier

American Airlines,Frontier

See more direct flights

Reviews of the top 3 airlines serving from Dallas/Fort Worth to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Dallas to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dallas/Fort Worth to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4265 reviews
8.0Comfort
7.5Entertainment
8.6Crew
8.1Boarding
7.0Food
Airline reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Plane was late. Zero service for 2+ hour flight and it was not that bumpy.

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

Boarding was easy. The seats are small and fairly uncomfortable

I elected to pay for the upgrades and found very little difference

They lost my baggage and I am still struggling to the information and update

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

Cancelled BOYH legs of our flight home 30 min before initial boarding

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

The staff was nice. I appreciated that I was able to take an earlier flight, even though it was last minute. The boarding process felt rather chaotic.

My flight got delayed a total of five times. And the boarding gate changed four times. most of the time the platform was not up-to-date with the changes taking place. The most discouraging part of the entire trip by far.

Returned home with a blood clot from flight homes and the uncomfortable aircraft I was on.

The crew was very kind, but no in-flight entertainment monitors and a 2 hour and 30 minute delay was extremely frustrating.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

Everything you need to know for your flight from Dallas/Fort Worth to Ontario

Information on your arrival and departure airports