ONT

$50 Find Cheap Flights from Dallas 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 to Ontario departing on 7/29. 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

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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Flights Deals

Cheap Flights from Dallas to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dallas 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 to Ontario

Sat, Aug 9 - Sat, Aug 23
Frontier Logo
6:09 pm - 7:14 pmDFW-ONT
3h 05mnonstop
Frontier Logo
12:04 pm - 5:20 pmONT-DFW
3h 16mnonstop
$100Frontier
Find Deal
Thu, Aug 7 - Tue, Aug 12
Frontier Logo
6:09 pm - 7:14 pmDFW-ONT
3h 05mnonstop
Frontier Logo
10:06 am - 3:19 pmONT-DFW
3h 13mnonstop
$104Frontier
Find Deal
Sat, Aug 23 - Sat, Aug 23
Frontier Logo
9:20 am - 10:24 amDFW-ONT
3h 04mnonstop
Frontier Logo
12:04 pm - 5:20 pmONT-DFW
3h 16mnonstop
$107Frontier
Find Deal
Thu, Aug 7 - Mon, Aug 11
Frontier Logo
6:09 pm - 7:14 pmDFW-ONT
3h 05mnonstop
Frontier Logo
8:09 pm - 1:24 amONT-DFW
3h 15mnonstop
$108Frontier
Find Deal
Tue, Aug 26 - Tue, Sep 9
Frontier Logo
6:30 pm - 11:50 pmDFW-ONT
7h 20m1 stop
Frontier Logo
8:59 pm - 11:15 amONT-DFW
12h 16m1 stop
$110Frontier
Find Deal
Tue, Jul 29 - Tue, Aug 5
Frontier Logo
8:00 am - 9:09 amDFW-ONT
3h 09mnonstop
Frontier Logo
10:06 am - 3:19 pmONT-DFW
3h 13mnonstop
$111Frontier
Find Deal
Thu, Sep 11 - Tue, Sep 16
Southwest Logo
7:45 pm - 8:50 pmDAL-ONT
3h 05mnonstop
Southwest Logo
10:20 am - 3:15 pmONT-DAL
2h 55mnonstop
$179Southwest
Find Deal
Sat, Aug 16 - Tue, Aug 19
Southwest Logo
2:35 pm - 3:40 pmDAL-ONT
3h 05mnonstop
Southwest Logo
6:20 am - 1:40 pmONT-DAL
5h 20m1 stop
$189Southwest
Find Deal
Sat, Aug 16 - Tue, Aug 19
Southwest Logo
2:35 pm - 3:40 pmDAL-ONT
3h 05mnonstop
Southwest Logo
5:45 am - 2:55 pmONT-DAL
7h 10m2 stops
$194Southwest
Find Deal
Tue, Aug 5 - Sat, Aug 9
Delta Logo
4:00 pm - 10:27 pmDAL-ONT
8h 27m1 stop
Delta Logo
11:40 am - 9:28 pmONT-DAL
7h 48m1 stop
$237Delta
Find Deal
Expert advice

Expert advice for your flight from Dallas to Ontario

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Frontier

Frontier's Economy Bundle includes a carry-on and seat choice, ideal for budget-conscious travelers.


Consider Premium Bundle for priority boarding and extra legroom, just $20 more than Economy.

Read more about Frontierby Stefanie Waldek
American Airlines

American's Main Cabin Extra offers early boarding and complimentary drinks, enhancing comfort.


Download the American Airlines app for inflight entertainment, as seatback screens are being removed.

Airports
DFW

DFW's security lines move quickly, often under 15 minutes. Use the airport app to find the shortest wait times.

Read more about DFWby Jennifer Simonson
ONT

For a budget-friendly arrival at ONT, use the Metrolink San Bernardino Line and ONT Connect Shuttle for seamless transit from Los Angeles.

Read more about ONTby Jennifer Simonson
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek

Stefanie Waldek

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

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.

Read more
Jennifer Simonson

Jennifer Simonson

Expert on ONT and DFW

Jennifer Simonson

Jennifer Simonson

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.

Read more
Useful Info

KAYAK's insights & trends for Dallas to Ontario flights

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

What is the cheapest Dallas to Ontario flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Dallas to Ontario.

Our data shows that the cheapest route for a return flight from Dallas to Ontario cost $157 and was between Dallas/Fort Worth Airport (DFW) and Ontario (ONT). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $157.

What’s the cheapest day of the week to fly from Dallas to Ontario?

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

When flying from Dallas 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, you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dallas 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 to Ontario is February, where tickets cost $150 (return) on average. On the other hand, the most expensive months are January and November, where the average cost of round-trip tickets is $283 and $279 respectively.

How far in advance should I book a flight from Dallas 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 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 to Ontario, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Cheapest flight$50
Flight from Dallas/Fort Worth Airport to Ontario

When to book flights from Dallas to Ontario

Are your dates flexible? Find out the best times to travel from Dallas 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.

FAQs for booking flights from Dallas to Ontario

  • What is the cheapest flight from Dallas to Ontario?

    In the last 3 days, the lowest price for a flight from Dallas to Ontario was $50 for a one-way ticket and $100 for a round-trip.

  • Do I need a passport to fly between Dallas and Ontario?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Dallas and on arrival in Ontario.

  • Which airports will I be using when flying from Dallas to Ontario?

    Dallas is served by 2 major airports and there is only 1 main airport in Ontario. You will leave Dallas from one of these airports: Dallas Love Field or Dallas/Fort Worth. You will be arriving at Ontario.

  • Which aircraft models fly most regularly from Dallas to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Dallas to Ontario?

    oneworld, and Star Alliance are the airline alliances operating flights between Dallas and Ontario, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Dallas 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 to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Dallas 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 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dallas 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Dallas to Ontario?

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

Direct departures

Dallas to Ontario

Monday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Tuesday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Wednesday

American Airlines, Southwest

American Airlines, Southwest

Thursday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Friday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Saturday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Sunday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

See more direct flights

Direct returns

Ontario to Dallas

Monday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Tuesday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Wednesday

American Airlines, Southwest

American Airlines, Southwest

Thursday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Friday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Saturday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

Sunday

American Airlines, Frontier, Southwest

American Airlines, Frontier, +1 more

See more direct flights

Reviews of the top 5 airlines serving from Dallas 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 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.
8.0
SouthwestOverall score based on 4278 reviews
8.0Comfort
8.6Crew
7.6Entertainment
7.0Food
8.2Boarding
Airline reviews

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

8.0 ExcellentMichael, Jun 2025PHX - SAN
Read more Southwest reviews

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Plz don't take away free bags and free seating

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Terrible. Cancelled my original flight. It made getting a boarding pass difficult. The AA employee (in a loud voice, so everyone around could hear) griped at me for not getting a boarding pass 24 hours before. I asked how I was supposed to do that when I had no idea what flight I was going to be on. She said (loudly), “Talk to AA customer service, not me!” I could certainly tell serving customers was not important to her. Our new flight was set to a completely different city. We had to change our rental car, and the price went way up. It took 2-1/2 hours to get checked in. By then our new flight had left. We ended up on stand by and had to split up the family to get to our destination. It cost us the whole first day of the trip. AA needs to employ people who actually care about doing a good job. I suppose those people are getting harder to find, but atleast try.

At the beginning of the flight there was some turbulence and the announcement was made that there would be no beverage service. The turbulence only last about 5 minutes then it was smooth sailing. I noticed that first class got their service, but the rest of us did not.

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

Took off on time and successfully avoided weather that looked to be a problem along the way

I liked everything. Except that my neck was hurting on the seat. I couldn't sleep.

We were delayed Al ost / hours after boarding so that maintenance had to add oil to the engines. Then the oil they grabbed had been left out in the Dallas record cold and was frozen. They had to go back to the hanger and grab some that was not frozen.

Flight was empty so had a whole row to myself. Still had to wait to get the bag due to the negligence at Palm Springs departure.

Everything was on time, we arrived early, everything worked well.

Angela was the best fa ever. She made that 8 hour flight a breeze

This was a pleasant, short flight and the crew was friendly.

Great! We boarded on time! Everything went so smoothly! The flight was so smooth

Boarding was a breeze, however, two of the flights that I boarded with Spirit did not have Wi-Fi available.

Seats uncomfortable, hard to check luggage, etc. It was like the last flight out of Hanoi

Very good. Nothing more or less than expected. No complaints.

My experience with the spirit as a first time it was OK, but the seats need a little cushion, the problem I had the most impacted me was when checking in the scales were so off and wrong. It will tell that you would have more weight, which was not true. The scale was say that it had Thirty Eight Pounds, when get in the labels when we send the luggage into the band. It says that it was overweight. I really really dislike that because the scales are not accurate. If I use Spirit and I have that issue again. That will be my last time flying with the spirit, even though I like so much to service the planes, and everything else

I will never fly with Spirit again. I was late getting through TSA after dealing with traffic and getting on the wrong shuttle. I got to the gate 2 minutes before the ticket said the gate closes and they agents were gone and doors were closed. They rescheduled my flight for 12 hours later and the agent had the nerve to tell me, “Be on time next time”. I was already upset from nothing going right for me that morning. I booked another flight through Alaska Airlines and they were very accommodating, nerer again Spirit Airlines!!!!

hahaha we are delayed for one hour plus.. but thx we arrived San Diego safe

All was good expecting the seats need a bit of cushion. Besides that I can’t complain.

You get what you pay for, and the flights went smoothly. There’s no reclining chairs, no screens, And there isn’t always wifi, but the plane was clean and staff was friendly and the takeoff/landing were smooth.

It’s what we expected from Spirit..reasonable cost, good for a 2-3 hour flight. Disappointed that we had a 2 hour delay in departure from DFW for a maintenance issue, but the pilot handled it well once we were outbound on a different Airbus.

Very bad! No good service delayed my second connection flight

They canceled flight. Hard to believe there was even a plane incoming for us to get on

Book with frontier airlines with the mentality that they'll cancel your flight, kick you off and lose your luggage. Anything besides that is a win. Compare prices with other airlines (to include luggage) and if frontier is still worth it, book it but know all of their policies.

Plane was down graded and I lost my uncharged exit row with more leg room. No mention or offer of refund from podium. Flight attendant was nice to explain this happens often and that I could request a refund via online form submission. I did this and have heard nothing back.

Horrendous. I do not recommend Frontier. The passengers lack manners and decency, and the flight attendants lack professionalism. If I wasn’t in a bind to fly with 48 hours notice for a job interview, I would not have selected a flight with Frontier and I never plan to fly with them in the future.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

Everything went as planned. Crew was great. Seats were still not that comfortable.

Would be great if Frontier can Assign Seats together under one PNR

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

The plane was clean, the crew was friendly and helpful. It’s a low cost airline so there was no food, drinks or in flight entertainment but we didn’t expect any of these things. In the room for improvement department, they should install USB ports in seats to charge mobile devices.

Everything you need to know for your flight from Dallas to Ontario

Information on your arrival and departure airports

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