DFW - ONT

$126 Find Cheap Flights from Dallas to Ontario - Compare and Save

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Everything you should know

Cheapest round-trip
$174
Typical prices: $199-$376
Frontier
Wed 9/5Fri 9/14
DFW - ONT • 1 stop
Cheapest non-stop
$174
Typical prices: $197-$381
Frontier
Mon 10/15Fri 10/19
DFW - ONT • Non-stop
Advice from real travelers
Frontier Economy Bundle adds a carry-on and seat choice for better value.
American Main Cabin Extra adds early boarding; Wi-Fi is available to buy.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with American Airlines and Frontier. Average duration is 3h 10m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 22 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $234 (round-trip)
Shortest trip • 4h 50m (one-way)
Insights
Insights
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We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Dallas to Ontario (DFW-ONT)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dallas to Ontario

Sat, Sep 5 - Mon, Sep 14
Frontier Logo
7:13 pm - 11:50 pmDFW  Dallas/Fort Worth-ONT Ontario
6h 37m1 stop Denver Intl
Frontier Logo
6:15 am - 7:59 pmONT  Ontario-DFW Dallas/Fort Worth
11h 44m2 stops Denver Intl Phoenix Sky Harbor Intl
$174Frontier
Tue, Sep 15 - Tue, Sep 22
Frontier Logo
9:04 pm - 4:59 pmDFW  Dallas/Fort Worth-ONT Ontario
21h 55m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl
Frontier Logo
11:45 am - 12:20 amONT  Ontario-DFW Dallas/Fort Worth
10h 35m1 stop Denver Intl
$175Frontier
Tue, Sep 22 - Tue, Sep 29
Frontier Logo
10:59 pm - 11:47 pmDFW  Dallas/Fort Worth-ONT Ontario
26h 48m2 stops Las Vegas Harry Reid Intl Denver Intl
Frontier Logo
11:45 am - 12:20 amONT  Ontario-DFW Dallas/Fort Worth
10h 35m1 stop Denver Intl
$175Frontier
Mon, Sep 14 - Thu, Sep 17
Frontier Logo
8:29 pm - 10:30 amDFW  Dallas/Fort Worth-ONT Ontario
16h 01m1 stop Denver Intl
Frontier Logo
11:45 am - 12:20 amONT  Ontario-DFW Dallas/Fort Worth
10h 35m1 stop Denver Intl
$176Frontier
Mon, Sep 14 - Tue, Sep 22
Multiple Airlines Logo
3:56 pm - 11:24 pmDFW  Dallas/Fort Worth-ONT Ontario
9h 28m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
5:31 pm - 10:49 pmONT  Ontario-DFW Dallas/Fort Worth
3h 18mnonstop
$277Multiple Airlines
Mon, Oct 12 - Tue, Oct 20
Multiple Airlines Logo
7:00 am - 10:29 amDFW  Dallas/Fort Worth-ONT Ontario
5h 29m1 stop Denver Intl
Multiple Airlines Logo
6:02 am - 5:11 pmONT  Ontario-DFW Dallas/Fort Worth
9h 09m1 stop Seattle/Tacoma Intl
$324Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
10:30 am - 4:34 pmDFW  Dallas/Fort Worth-ONT Ontario
8h 04m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:12 am - 4:41 pmONT  Ontario-DFW Dallas/Fort Worth
7h 29m1 stop Portland
$324Multiple Airlines
Sat, Sep 19 - Tue, Sep 22
American Airlines Logo
11:31 am - 6:17 pmDFW  Dallas/Fort Worth-ONT Ontario
8h 46m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:15 am - 7:58 pmONT  Ontario-DFW Dallas/Fort Worth
11h 43m1 stop Phoenix Sky Harbor Intl
$351American Airlines
Wed, Sep 9 - Wed, Sep 16
American Airlines Logo
9:28 pm - 12:06 pmDFW  Dallas/Fort Worth-ONT Ontario
16h 38m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
1:04 pm - 11:15 pmONT  Ontario-DFW Dallas/Fort Worth
8h 11m1 stop Phoenix Sky Harbor Intl
$351American Airlines
Wed, Sep 9 - Wed, Sep 16
American Airlines Logo
2:45 pm - 12:06 pmDFW  Dallas/Fort Worth-ONT Ontario
23h 21m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:15 am - 9:50 pmONT  Ontario-DFW Dallas/Fort Worth
13h 35m1 stop Phoenix Sky Harbor Intl
$351American Airlines
Booking Insights

Price, demand and travel trends for Dallas/Fort Worth Airport to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Dallas/Fort Worth Airport to Ontario with more confidence.

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

Round-trip flights from Dallas/Fort Worth Airport to Ontario start at $174. Prices are below average for this route right now, with typical round-trip fares ranging from $199 to $376. The lowest price found in the past 5 days was $174 on Frontier.

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

Thursday is the cheapest day of the week to fly from Dallas/Fort Worth Airport to Ontario, it is 10% cheaper than the average day. Friday is the most expensive day with flight prices 10% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • September is the cheapest month to fly from Dallas/Fort Worth Airport to Ontario at $193 round-trip.
  • July ($374) and June ($353) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 93% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Dallas/Fort Worth Airport to Ontario the cheapest?

Flights from Dallas/Fort Worth Airport to Ontario are cheapest 22 weeks before departure. Booking in this window typically costs about 36% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Dallas to Ontario

 
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.

Key details for Dallas/Fort Worth Airport to Ontario flights

Low season

May

Cheapest flight

$126
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly and prices are also 6% lower on average.
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

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 
RicardoFlew with American Airlines-Aug 2026
Enjoy the Dallas airport with its variety of restaurants and stores if you have to wait for long layovers.
FraxysFlew with American Airlines-Feb 2026
Bring your own snacks or sandwich for dinner in the plane.
JoelFlew with American Airlines-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

Your Dallas/Fort Worth Airport to Ontario flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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.

  • Which airlines offer extra legroom and free seat selection on Dallas/Fort Worth Airport to Ontario flights?

    Among airlines operating Dallas/Fort Worth Airport to Ontario flights:

    • Frontier: offers free seat selection
    • American Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Dallas/Fort Worth Airport to Ontario?

    2 airlines operate flights between Dallas/Fort Worth Airport and Ontario. The airlines offering nonstop flights on this route include:
    • American Airlines
    • Frontier

  • Which airports can I use when flying from Dallas/Fort Worth Airport to Ontario?

    Flights from Dallas/Fort Worth Airport to Ontario usually depart from Dallas/Fort Worth (DFW) and arrive at Ontario (ONT).

  • Which airlines include bags at no extra cost on Dallas/Fort Worth Airport to Ontario flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • American Airlines: a cabin bag and a checked bag in Economy Class
    • Frontier: a cabin bag and a checked bag in Business Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Dallas/Fort Worth Airport to Ontario?

    Two cabin classes are available on flights from Dallas/Fort Worth Airport to Ontario:

    • Economy Class
    • First Class

  • How much can I save by taking a layover when flying from Dallas/Fort Worth Airport to Ontario?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $234 round-trip via Denver Intl (DEN), compared to $281 for nonstop.

  • What is the standard checked-bag allowance on flights from Dallas/Fort Worth Airport to Ontario?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Dallas/Fort Worth Airport to Ontario?

    The Airbus A321-100/200 family is used most often on this route, operated mainly by American Airlines and Frontier. Other aircraft seen on the route include Airbus A321neo variants.

  • Which airports do connecting flights from Dallas/Fort Worth Airport to Ontario pass through?

    One-stop flights from Dallas/Fort Worth Airport to Ontario most commonly connect through:

    • Denver Intl (DEN) - 53% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 26% of one-stop connections
    • Salt Lake City (SLC) - 12% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 7% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Dallas/Fort Worth Airport to Ontario?

    Yes. Being flexible with your travel dates can save you up to 19% on the Dallas/Fort Worth Airport to Ontario route. Thursday is the cheapest departure day at $252 round-trip on average, while Friday is the most expensive at $308, a difference of $56. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How are flight departures from Dallas/Fort Worth Airport to Ontario spread across the day?

    Morning is the busiest departure period on Dallas/Fort Worth Airport to Ontario flights, with 51% of flights leaving in that window. Night departures account for 33%, evening flights for 16%, and afternoon flights for 0%.

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center, Ontario Mills and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

  • How long is a flight from Dallas/Fort Worth Airport to Ontario?

    A nonstop flight from Dallas/Fort Worth Airport to Ontario takes 3h 10m, covering 1,185 miles.

  • What are the earliest and latest flights from Dallas/Fort Worth Airport to Ontario?

    These are the earliest and latest flight times available from Dallas/Fort Worth Airport to Ontario:

    • Earliest: departs at 6:00 am and lands at 9:10 am
    • Latest: departs at 10:41 pm and lands at 1:51 am.

    The flight takes about 3h 10m.

  • How expensive are last-minute Dallas/Fort Worth Airport to Ontario flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 20% above the route average of $279. Book 22 weeks before departure for the lowest fares.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Dallas/Fort Worth Airport to Ontario changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $174 to $1,169. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Dallas/Fort Worth Airport to Ontario looking right now?

    One-way fares from Dallas/Fort Worth Airport to Ontario are currently lower than usual. Average one-way flight prices are about $165, which is 10% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Dallas/Fort Worth Airport to Ontario?

    Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 4h 50m, compared with 5h 54m via Salt Lake City (SLC) and 6h 58m via Houston George Bush Intcntl (IAH).

  • What is the time difference between Dallas/Fort Worth Airport and Ontario?

    Ontario is 2 hours behind Dallas/Fort Worth Airport (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:
    · Fox
    · Thrifty
    · Europcar
    · Dollar
    · Alamo

  • How much should I expect to pay for a Dallas/Fort Worth Airport to Ontario flight?

    Round-trip flights from Dallas/Fort Worth Airport to Ontario range from $199 to $376, with an average of $279 over the past 12 months. Anything below $199 counts as a good deal.

  • Which airlines offer Wi-Fi on Dallas/Fort Worth Airport to Ontario flights?

    Two airlines offer in-flight Wi-Fi on Dallas/Fort Worth Airport to Ontario flights:

    • • American Airlines
    • • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

Your guide to booking Dallas/Fort Worth Airport to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Friday. On this route, Thursday flights average $252 - about $56 less than Friday (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 22 weeks before you fly. On this route, that window historically saves about 36% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Dallas/Fort Worth Airport to Ontario trip for September. Fares historically average $193 round-trip in that month - typically $181 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Denver Intl Airport (DEN) can be cheaper than flying direct. The cheapest layover option averages $234 round-trip on this route - about $48 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.
    - Azure Hotel & Suites, Trademark Collection by Wyndham
    - Holiday Inn Ontario Airport By IHG
    - La Quinta Inn & Suites by Wyndham Ontario Airport
  • 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 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

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

Information on your arrival and departure airports