ONT

$114 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 6/1. 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
$187
Typical prices: $323-$182
Frontier
ven. 7/31ven. 7/31
DFW - ONT • 1 stop
Cheapest non-stop
$201
Typical prices: $302-$167
Frontier
mer. 7/29sam. 8/1
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.
Frontier's Economy Bundle includes a carry-on.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Cheapest • from $187 (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 06m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 31% 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 16% 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
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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

ven., juil. 31 - ven., juil. 31
Frontier Logo
5:18 am - 10:03 am
DFW
-
ONT
6h 45m
1 stop
Frontier Logo
6:47 pm - 11:58 pm
ONT
-
DFW
3h 11mnonstop
$187Frontier
mer., juin 10 - jeu., juin 11
Frontier Logo
6:18 pm - 10:05 am
DFW
-
ONT
17h 47m
1 stop
Frontier Logo
6:47 pm - 11:59 pm
ONT
-
DFW
3h 12mnonstop
$188Frontier
sam., juil. 4 - mar., juil. 7
Frontier Logo
3:35 pm - 4:48 pm
DFW
-
ONT
3h 13mnonstop
Frontier Logo
10:49 am - 12:29 am
ONT
-
DFW
11h 40m
1 stop
$189Frontier
mer., juin 3 - mer., juin 3
Frontier Logo
5:18 am - 10:05 am
DFW
-
ONT
6h 47m
1 stop
Frontier Logo
4:39 pm - 5:41 am
ONT
-
DFW
11h 02m
1 stop
$190Frontier
sam., juin 6 - dim., juin 7
Frontier Logo
3:43 pm - 5:04 pm
DFW
-
ONT
3h 21mnonstop
Frontier Logo
6:00 am - 8:07 am
ONT
-
DFW
24h 07m
1 stop
$192Frontier
sam., juin 6 - lun., juin 8
Frontier Logo
10:17 pm - 10:05 am
DFW
-
ONT
13h 48m
1 stop
Frontier Logo
8:03 am - 1:12 pm
ONT
-
DFW
3h 09mnonstop
$193Frontier
mar., sept. 1 - mar., sept. 8
Frontier Logo
6:55 pm - 11:49 pm
DFW
-
ONT
6h 54m
1 stop
Frontier Logo
8:33 pm - 5:40 am
ONT
-
DFW
7h 07m
1 stop
$194Frontier
mar., août 4 - mar., août 18
Frontier Logo
7:09 pm - 11:50 pm
DFW
-
ONT
6h 41m
1 stop
Frontier Logo
10:50 am - 9:26 pm
ONT
-
DFW
8h 36m
1 stop
$195Frontier
mer., mai 27 - mer., mai 27
Southwest Logo
12:20 pm - 1:30 pm
DAL
-
ONT
3h 10mnonstop
Southwest Logo
3:45 pm - 11:10 pm
ONT
-
DAL
5h 25m
1 stop
$381Southwest
sam., juil. 4 - sam., juil. 11
Southwest Logo
11:05 am - 12:05 pm
DAL
-
ONT
3h 00mnonstop
Southwest Logo
7:10 am - 12:05 pm
ONT
-
DAL
2h 55mnonstop
$387Southwest
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 $152 on the route between Dallas/Fort Worth Airport (DFW) and Ontario (ONT). Over the past month, this route was, on average, 31% 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 Wednesdays 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 March and July, where the average cost of round-trip tickets is $96 and $86 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 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 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$114
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 3 days, the lowest price for a flight from Dallas to Ontario was $114 for a one-way ticket and $187 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 4296 reviews
8.1Boarding
7.5Entertainment
8.0Comfort
7.0Food
8.6Crew
Airline reviews

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.

10.0 ExcellentRobert, May 2026
LAS - SFO
Read more Southwest reviews

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

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

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.

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

It was really a terrific experience both going and returning on AA. Staff and crew were professional.

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

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.

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

Information on your arrival and departure airports