$100+ Cheap flights from Dallas/Fort Worth (DFW) to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Oct 24 — Oct 311
Round-trip
1 adult, Economy
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Find cheap flights from Dallas/Fort Worth to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Dallas/Fort Worth to Ontario are usually found in February or January, booked 82 days in advance, depart on a Thursday or Tuesday and return on a Tuesday
Cheap flight deals from Dallas/Fort Worth to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dallas/Fort Worth to OntarioExplore the most affordable flight options available from Dallas/Fort Worth to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Dallas/Fort Worth to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This Booking.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:00 am -
1 stop5h 29m
Sat 10/246:15 am -
1 stop16h 01m
Deal found 9/22![Frontier logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:39 pm -
1 stop11h 11m
Sat 12/56:00 am -
1 stop15h 39m
Deal found 9/19![Frontier logo]()
$190
This FlightHub deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:37 am -
1 stop25h 52m
Mon 10/266:15 am -
1 stop5h 35m
Deal found 9/21![Frontier logo]()
$191
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 am -
1 stop5h 29m
Sat 10/176:15 am -
1 stop16h 01m
Deal found 9/21![Frontier logo]()
$192
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:35 am -
2 stops20h 16m
Sat 11/146:25 am -
1 stop15h 53m
Deal found 9/23![Frontier logo]()
$194
This Frontier deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:27 pm -
1 stop5h 23m
Wed 10/2811:52 am -
1 stop5h 30m
Deal found 9/21![Frontier logo]()
$195
This Mytrip deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:27 pm -
1 stop16h 02m
Tue 10/276:25 am -
2 stops12h 36m
Deal found 9/22![Frontier logo]()
$197
This Booking.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:00 am -
1 stop18h 50m
Sat 10/176:15 am -
1 stop5h 35m
Deal found 9/21![Frontier logo]()
$199
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:02 pm -
2 stops21h 27m
Tue 10/276:25 am -
1 stop15h 53m
Deal found 9/23![Frontier logo]()
$200
Best flights from Dallas/Fort Worth to OntarioDiscover carefully curated flight deals from Dallas/Fort Worth to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Dallas/Fort Worth to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This Delta deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1412:29 pm -
2 stops12h 31m
Tue 11/177:00 am -
2 stops12h 24m
Deal found 9/20![Delta logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:41 pm -
1 stop7h 13m
Mon 10/196:56 pm -
1 stop9h 24m
Deal found 9/23![Alaska Airlines logo]()
$411
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:42 pm -
2 stops8h 49m
Tue 10/201:22 pm -
2 stops7h 37m
Deal found 9/19![United Airlines logo]()
$477
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:06 pm -
1 stop7h 49m
Sat 10/246:00 am -
1 stop5h 54m
Deal found 9/19![Delta logo]()
$370
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/95:00 pm -
1 stop7h 59m
Fri 12/1111:57 am -
1 stop9h 56m
Deal found 9/23![Delta logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:15 am -
2 stops9h 03m
Sat 10/178:03 am -
2 stops10h 43m
Deal found 9/23![United Airlines logo]()
$490
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/125:00 pm -
1 stop7h 59m
Sun 12/136:00 am -
1 stop5h 39m
Deal found 9/23![Delta logo]()
$446
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:35 pm -
2 stops10h 24m
Sun 12/136:00 am -
1 stop5h 39m
Deal found 9/23![Delta logo]()
$451
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:10 am -
2 stops11h 02m
Sun 11/16:00 am -
1 stop5h 54m
Deal found 9/22![Delta logo]()
$451
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/174:10 pm -
2 stops9h 47m
Sun 12/206:00 am -
1 stop6h 35m
Deal found 9/19![Delta logo]()
$451
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:34 pm -
2 stops12h 09m
Tue 10/206:20 am -
2 stops13h 09m
Deal found 9/23![Delta logo]()
$478
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:05 pm -
2 stops9h 50m
Tue 10/206:00 am -
1 stop5h 54m
Deal found 9/23![Delta logo]()
$494
Last-minute flights from Dallas/Fort Worth to OntarioDiscover last-minute flight deals from Dallas/Fort Worth to Ontario. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Dallas/Fort Worth to Ontario. Data last updated September 24, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:00 am -
1 stop18h 50m
Sat 10/176:15 am -
1 stop16h 01m
Deal found 9/22![Frontier logo]()
$197
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 am -
1 stop5h 29m
Sat 10/176:15 am -
1 stop16h 01m
Deal found 9/21![Frontier logo]()
$192
This Booking.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:00 am -
1 stop5h 29m
Sat 10/246:15 am -
1 stop16h 01m
Deal found 9/22![Frontier logo]()
$189
This Booking.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:37 am -
1 stop25h 52m
Thu 10/2211:52 am -
1 stop19h 40m
Deal found 9/22![Frontier logo]()
$194
This Mytrip deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:40 am -
2 stops24h 49m
Tue 10/276:25 am -
1 stop10h 57m
Deal found 9/22![Frontier logo]()
$195
This Cheapflightsfares deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:39 pm -
1 stop11h 11m
Sat 12/56:00 am -
1 stop15h 39m
Deal found 9/19![Frontier logo]()
$190
This FlightHub deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:37 am -
1 stop25h 52m
Mon 10/266:15 am -
1 stop5h 35m
Deal found 9/21![Frontier logo]()
$191
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:02 pm -
2 stops21h 27m
Tue 10/276:25 am -
1 stop15h 53m
Deal found 9/23![Frontier logo]()
$200
One-way flights from Dallas/Fort Worth to OntarioSearch for one-way flight options from Dallas/Fort Worth to Ontario. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
Search for one-way flight options from Dallas/Fort Worth to Ontario. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This FlightHub deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:35 pm -
1 stop16h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$100
This Priceline deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:28 pm -
1 stop5h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$103
This Booking.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:27 pm -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$104
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/18:35 pm -
1 stop16h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/183:17 pm -
Nonstop3h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$107
This FlightHub deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:54 pm -
1 stop17h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$108
This Super.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:00 am -
1 stop5h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$109
This Super.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1310:59 pm -
1 stop21h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$112
This Super.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:37 am -
1 stop15h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$115
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:30 am -
2 stops20h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$117
Find flight deals from Dallas/Fort Worth to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Dallas/Fort Worth (DFW) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $189 (Booking.com) |
One-way from | $100 (FlightHub) |
Popular in | July |
Cheapest in | February |
Average price | $321 |
Good round-trip deal | $285 or less |
Good one-way deal | $157 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dallas/Fort Worth to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 24, 2026.
Use the filters below to find and compare flights from Dallas/Fort Worth Airport to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Fri 11/6
2:39 pm-10:42 am
1 stop22h 03m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$124
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Mon 10/19
7:00 am-7:40 pm
2 stops14h 40m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$143
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Tue 10/13
4:05 pm-11:55 pm
2 stops9h 50m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$184
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Tue 10/20
1:54 pm-11:55 pm
2 stops12h 01m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$184
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Sat 10/17
12:34 pm-10:43 pm
2 stops12h 09m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$184
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Wed 11/18
6:25 am-4:24 pm
2 stops11h 59m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$184
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Wed 11/4
6:06 pm-10:11 pm
1 stop6h 05m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$188
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Sat 10/3
3:30 pm-4:46 pm
Nonstop3h 16m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$209
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Tue 11/3
9:39 am-6:21 pm
1 stop10h 42m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$224
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Wed 10/14
8:20 am-9:35 am
Nonstop3h 15m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$224
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Dallas/Fort Worth to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dallas/Fort Worth to Ontario in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Dallas/Fort Worth Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dallas/Fort Worth Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Dallas/Fort Worth Airport-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Dallas/Fort Worth Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Dallas/Fort Worth Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Dallas/Fort Worth to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Dallas/Fort Worth with our price prediction graph.
DFW-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Dallas/Fort Worth Airport to Ontario
Prices
Airlines
More
How far ahead should I book a flight from Dallas/Fort Worth Airport to Ontario?
The price you pay for your flight from Dallas/Fort Worth Airport to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Dallas/Fort Worth Airport to Ontario?
Currently, February is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Ontario (average of $224). Flying from Dallas/Fort Worth Airport to Ontario in July is currently the most expensive (average of $371). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DFW to ONT?
Find hourly flight availability from Dallas/Fort Worth to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 24, 2026.
When flying from Dallas/Fort Worth Airport to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 19% versus a flight in the evening.
What is the cheapest day to fly from Dallas/Fort Worth Airport to Ontario?
Use this chart to determine the cheapest time to fly round-trip from Dallas/Fort Worth to Ontario. Price data was last updated on September 19, 2026.
Travelers seeking maximum savings on their Dallas/Fort Worth Airport to Ontario flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
What’s the top layover airport for flights from Dallas/Fort Worth Airport to Ontario?
Share of 1-stop round-trip flights from Dallas/Fort Worth Airport to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 50% of 1-stop itineraries from Dallas/Fort Worth Airport to Ontario on Cheapflights.
What’s the cheapest layover airport for flights from Dallas/Fort Worth Airport to Ontario?
Average round-trip fare for 1-stop flights from Dallas/Fort Worth Airport to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $326.
What’s the fastest layover option from Dallas/Fort Worth Airport to Ontario?
Shortest average travel time for 1-stop one-way flights from Dallas/Fort Worth Airport to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Las Vegas (LAS) have the shortest average one-way travel time for 1-stop routes: 4h 45m.
Which airport typically offers the quickest layover for flights from Dallas/Fort Worth Airport to Ontario?
Average layover duration for 1-stop one-way flights from Dallas/Fort Worth Airport to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 30m.
The best insider tips for Dallas/Fort Worth Airport to Ontario flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Dallas/Fort Worth Airport to Ontario trip
Our travel experts
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated September 24, 2026.
Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Ontario, such as Southwest,American Airlines, andFrontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
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Top 3 airlines flying from Dallas/Fort Worth to Ontario
Discover the top 3 airlines that operate flights from Dallas/Fort Worth to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$266 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$194 | Average$393 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$219 | Average$418 | FlexibilityNo cancel fee | On-time63% |