ONT

$130 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 7/14. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$244
Typical prices: $202-$386
Frontier
Wed 7/22Sat 7/25
DFW - ONT • Non-stop
Cheapest one-way
$130
Typical prices: $144-$315
Frontier
Tue 7/14
DFW - ONT • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Frontier Economy Bundle adds a carry-on and seat choice; Premium Bundle costs $20 more.
American Main Cabin Extra adds early boarding; use the app for inflight entertainment.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Cheapest • from $244 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines, Frontier and Southwest. Average duration is 3h 04m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 22% average savings
Most popular
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Expert advice
Flight 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

Wed, Jul 22 - Sat, Jul 25
Frontier Logo
7:31 am - 8:37 am
DFW
-
ONT
3h 06mnonstop
Frontier Logo
8:17 am - 1:31 pm
ONT
-
DFW
3h 14mnonstop
$244Frontier
Sat, Aug 15 - Sat, Aug 22
Frontier Logo
7:35 am - 8:41 am
DFW
-
ONT
3h 06mnonstop
Frontier Logo
9:37 am - 2:46 pm
ONT
-
DFW
3h 09mnonstop
$245Frontier
Tue, Jul 28 - Tue, Aug 4
Frontier Logo
9:31 pm - 10:04 am
DFW
-
ONT
14h 33m
1 stop
Frontier Logo
6:00 am - 1:19 pm
ONT
-
DFW
5h 19m
1 stop
$246Frontier
Tue, Jul 21 - Tue, Jul 28
Frontier Logo
7:31 am - 8:37 am
DFW
-
ONT
3h 06mnonstop
Frontier Logo
6:00 am - 3:34 pm
ONT
-
DFW
7h 34m
1 stop
$247Frontier
Fri, Jul 31 - Sat, Aug 1
Frontier Logo
7:31 am - 8:37 am
DFW
-
ONT
3h 06mnonstop
Frontier Logo
6:00 am - 8:36 pm
ONT
-
DFW
12h 36m
1 stop
$248Frontier
Wed, Aug 5 - Thu, Aug 13
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
$249Frontier
Wed, Jul 15 - Sat, Jul 18
Frontier Logo
7:31 am - 8:37 am
DFW
-
ONT
3h 06mnonstop
Frontier Logo
6:00 am - 12:29 am
ONT
-
DFW
16h 29m
1 stop
$250Frontier
Sat, Sep 5 - Sat, Sep 5
Frontier Logo
7:30 am - 8:36 am
DFW
-
ONT
3h 06mnonstop
Frontier Logo
11:50 am - 7:12 pm
ONT
-
DFW
5h 22m
1 stop
$251Frontier
Sat, Aug 15 - Wed, Aug 19
Southwest Logo
2:55 pm - 4:00 pm
DAL
-
ONT
3h 05mnonstop
Southwest Logo
2:15 pm - 7:15 pm
ONT
-
DAL
3h 00mnonstop
$277Southwest
Tue, Aug 4 - Tue, Aug 11
Southwest Logo
4:55 pm - 10:00 pm
DAL
-
ONT
7h 05m
1 stop
Southwest Logo
2:15 pm - 7:15 pm
ONT
-
DAL
3h 00mnonstop
$287Southwest
Booking Insights

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.

How much is a round-trip flight from Dallas 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 to Ontario departing in July.

What is the cheapest Dallas to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Dallas to Ontario costs $224 on the route between Dallas/Fort Worth Airport (DFW) and Ontario (ONT). Over the past month, this route was, on average, 22% cheaper than other Dallas-Ontario routes. It is also the most popular route.

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 Thursdays and the most expensive ones on Sundays.

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 $33 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $164 and $103 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, which saves you about 17% 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 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 and DFW

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.

Good to know

Cheapest flight$130
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.

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

Insights shared by verified travelers who flew the route from Dallas 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 flights from Dallas to Ontario

  • What is the cheapest flight from Dallas to Ontario?

    In the last 5 days, the lowest price for a flight from Dallas to Ontario was $130 for a one-way ticket and $244 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 is the only airline alliance operating flights between Dallas and Ontario.

  • 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,Frontier,Southwest

American Airlines,Frontier, +1 more

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,Frontier,Southwest

American Airlines,Frontier, +1 more

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 3 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.
7.9
SouthwestOverall score based on 4246 reviews
8.1Boarding
7.5Entertainment
8.6Crew
7.0Food
8.0Comfort
Airline reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

6.0 GoodSteven, Jun 2026
LAS - ONT
Read more Southwest reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

I don't know why flying out of Sarasota requires two plane changes.

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

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

The flight in it self was good. The delays looking for pilots was unexpected.

This flight left late. We had A46/A47 boarding, but SW boarded 45 people from an interrupted flight ahead of us. It was a zoo. Seats are very uncomfortable, even for a 5’8” person of normal BMI.

The crew was very helpful, nice friendly. The only issue I have was the horrible turbulence that we experienced leaving Dallas love field airport. It lasted about 20 minutes I think.

Flight cancelled. Twice. And no communication. No gate agent. Went past boarding time and had to go and see email from AA. Airport communication was bad

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

To have arrived on time and not 3 hours late after having already spent $100 to change to an earlier flight, only to arrive back home close to the original flight time.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

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

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

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

I had to cancel within 1hour of the reservation an they put you through hell to . no live customer service desk. I'm handy caped and they make it almost impossible to cancel. They are steeling my money. You should not have that airline on your site. Contact me and I will give you all info. Of what the are doing to me just notable treatment they are set up like that to take people

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

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

Information on your arrival and departure airports