$96+ Cheap flights from Dallas 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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Dec 9 — Dec 161
Round-trip
1 adult, Economy
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Find cheap flights from Dallas 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 to Ontario are usually found in February or January, booked 82 days in advance, depart on a Tuesday or Wednesday and return on a Thursday
Cheap flight deals from Dallas to Ontario
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Cheapest flights from Dallas to OntarioExplore the most affordable flight options available from Dallas to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.
Explore the most affordable flight options available from Dallas to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.
This Super.com deal was found by Cheapflights users on 11/5. 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.
Sat 12/126:27 am -
Nonstop3h 17m
Mon 12/1412:36 pm -
Nonstop3h 05m
Deal found 11/5![Frontier logo]()
$183
This Booking.com deal was found by Cheapflights users on 11/5. 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 12/15:02 pm -
1 stop21h 37m
Fri 12/1111:30 am -
2 stops11h 20m
Deal found 11/5![Frontier logo]()
$184
This Frontier deal was found by Cheapflights users on 11/6. 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.
Tue 12/18:00 am -
Nonstop3h 28m
Wed 12/26:00 am -
1 stop5h 22m
Deal found 11/6![Frontier logo]()
$185
This Mytrip deal was found by Cheapflights users on 11/4. 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 12/48:35 pm -
1 stop27h 42m
Fri 12/1111:30 am -
2 stops11h 20m
Deal found 11/4![Frontier logo]()
$186
This Travelocity deal was found by Cheapflights users on 11/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:17 pm -
Nonstop3h 21m
Wed 11/185:07 pm -
1 stop10h 11m
Deal found 11/4![Frontier logo]()
$187
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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.
Mon 12/146:27 am -
Nonstop3h 17m
Tue 12/1512:36 pm -
Nonstop3h 05m
Deal found 11/5![Frontier logo]()
$188
This CheapOair deal was found by Cheapflights users on 11/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:27 am -
Nonstop3h 17m
Sat 12/197:10 pm -
Nonstop3h 00m
Deal found 11/7![Frontier logo]()
$189
This Mytrip deal was found by Cheapflights users on 11/7. 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 12/512:00 pm -
1 stop8h 31m
Sat 12/128:44 am -
2 stops12h 55m
Deal found 11/7![Frontier logo]()
$190
This Mytrip deal was found by Cheapflights users on 11/7. 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.
Wed 12/22:31 pm -
2 stops10h 27m
Fri 12/42:00 pm -
1 stop18h 55m
Deal found 11/7![Frontier logo]()
$191
This FlightHub deal was found by Cheapflights users on 11/4. 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.
Tue 11/2410:54 pm -
1 stop10h 26m
Fri 12/46:00 am -
1 stop5h 29m
Deal found 11/4![Frontier logo]()
$192
This CheapOair deal was found by Cheapflights users on 11/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/308:54 pm -
1 stop23h 17m
Tue 12/812:36 pm -
Nonstop3h 05m
Deal found 11/8![Frontier logo]()
$193
This Frontier deal was found by Cheapflights users on 11/7. 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.
Wed 11/257:59 pm -
1 stop6h 25m
Wed 12/210:23 am -
Nonstop3h 07m
Deal found 11/7![Frontier logo]()
$194
Best flights from Dallas to OntarioDiscover carefully curated flight deals from Dallas to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
Discover carefully curated flight deals from Dallas to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
This Southwest deal was found by Cheapflights users on 11/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:00 am -
1 stop7h 20m
Sat 12/127:00 am -
2 stops6h 10m
Deal found 11/4![Southwest logo]()
$310
This Delta deal was found by Cheapflights users on 11/5. 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.
Fri 12/182:35 pm -
2 stops10h 24m
Sun 12/2011:59 am -
1 stop9h 51m
Deal found 11/5![Delta logo]()
$487
This United Airlines deal was found by Cheapflights users on 11/8. 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.
Wed 3/3111:20 am -
2 stops8h 27m
Sat 4/36:00 am -
1 stop5h 59m
Deal found 11/8![United Airlines logo]()
$506
This KAYAK deal was found by Cheapflights users on 11/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/15:35 pm -
Nonstop3h 16m
Fri 2/512:45 pm -
Nonstop3h 05m
Deal found 11/6![American Airlines logo]()
$529
This Alaska Airlines deal was found by Cheapflights users on 11/7. 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.
Sun 3/213:19 pm -
1 stop9h 20m
Thu 3/256:00 am -
1 stop8h 51m
Deal found 11/7![Alaska Airlines logo]()
$602
This Southwest deal was found by Cheapflights users on 11/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/912:50 pm -
Nonstop3h 10m
Tue 1/1210:15 am -
Nonstop2h 50m
Deal found 11/5![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 11/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1211:55 am -
Nonstop3h 15m
Sat 1/167:20 am -
Nonstop2h 50m
Deal found 11/4![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 11/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/61:25 pm -
2 stops7h 35m
Sat 2/134:40 pm -
1 stop4h 35m
Deal found 11/5![Southwest logo]()
$382
This Southwest deal was found by Cheapflights users on 11/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/104:50 pm -
2 stops6h 55m
Mon 12/148:40 am -
1 stop5h 50m
Deal found 11/8![Southwest logo]()
$397
This Delta deal was found by Cheapflights users on 11/8. 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 11/251:52 pm -
2 stops11h 57m
Tue 12/112:20 pm -
1 stop9h 56m
Deal found 11/8![Delta logo]()
$530
This Southwest deal was found by Cheapflights users on 11/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:40 am -
Nonstop3h 05m
Sun 12/612:40 pm -
1 stop7h 00m
Deal found 11/4![Southwest logo]()
$416
This United Airlines deal was found by Cheapflights users on 11/4. 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 4/97:00 am -
2 stops12h 47m
Sat 4/171:33 pm -
1 stop6h 55m
Deal found 11/4![United Airlines logo]()
$619
This Southwest deal was found by Cheapflights users on 11/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/71:35 pm -
2 stops5h 50m
Sun 1/1010:15 am -
Nonstop2h 50m
Deal found 11/5![Southwest logo]()
$417
This Delta deal was found by Cheapflights users on 11/8. 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 11/241:52 pm -
2 stops11h 57m
Thu 11/266:00 am -
2 stops10h 54m
Deal found 11/8![Delta logo]()
$667
This United Airlines deal was found by Cheapflights users on 11/8. 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.
Thu 11/265:15 am -
2 stops9h 18m
Fri 11/276:00 am -
2 stops8h 39m
Deal found 11/8![United Airlines logo]()
$673
This Southwest deal was found by Cheapflights users on 11/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/179:10 pm -
Nonstop3h 10m
Mon 12/215:00 am -
Nonstop2h 50m
Deal found 11/8![Southwest logo]()
$419
This Southwest deal was found by Cheapflights users on 11/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/291:35 pm -
2 stops5h 50m
Sat 2/612:00 pm -
1 stop7h 35m
Deal found 11/8![Southwest logo]()
$425
This Delta deal was found by Cheapflights users on 11/4. 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 3/318:00 am -
2 stops11h 17m
Sat 4/37:00 am -
2 stops12h 05m
Deal found 11/4![Delta logo]()
$709
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/205:25 pm -
1 stop6h 15m
Tue 12/16:00 am -
2 stops9h 51m
Deal found 11/5![United Airlines logo]()
$709
Last-minute flights from Dallas to OntarioDiscover last-minute flight deals from Dallas to Ontario. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from Dallas to Ontario. Data last updated November 9, 2026 and is based on user searches.
This Travelocity deal was found by Cheapflights users on 11/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:17 pm -
Nonstop3h 21m
Wed 11/185:07 pm -
1 stop10h 11m
Deal found 11/4![Frontier logo]()
$187
This FlightHub deal was found by Cheapflights users on 11/4. 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.
Tue 11/2410:54 pm -
1 stop10h 26m
Fri 12/46:00 am -
1 stop5h 29m
Deal found 11/4![Frontier logo]()
$192
This Frontier deal was found by Cheapflights users on 11/7. 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.
Wed 11/257:59 pm -
1 stop6h 25m
Wed 12/210:23 am -
Nonstop3h 07m
Deal found 11/7![Frontier logo]()
$194
This CheapOair deal was found by Cheapflights users on 11/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/308:54 pm -
1 stop23h 17m
Tue 12/812:36 pm -
Nonstop3h 05m
Deal found 11/8![Frontier logo]()
$193
This Booking.com deal was found by Cheapflights users on 11/5. 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 12/15:02 pm -
1 stop21h 37m
Fri 12/1111:30 am -
2 stops11h 20m
Deal found 11/5![Frontier logo]()
$184
This Frontier deal was found by Cheapflights users on 11/6. 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.
Tue 12/18:00 am -
Nonstop3h 28m
Wed 12/26:00 am -
1 stop5h 22m
Deal found 11/6![Frontier logo]()
$185
This Mytrip deal was found by Cheapflights users on 11/7. 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.
Wed 12/22:31 pm -
2 stops10h 27m
Fri 12/42:00 pm -
1 stop18h 55m
Deal found 11/7![Frontier logo]()
$191
This Mytrip deal was found by Cheapflights users on 11/4. 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 12/48:35 pm -
1 stop27h 42m
Fri 12/1111:30 am -
2 stops11h 20m
Deal found 11/4![Frontier logo]()
$186
This Mytrip deal was found by Cheapflights users on 11/7. 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 12/512:00 pm -
1 stop8h 31m
Sat 12/128:44 am -
2 stops12h 55m
Deal found 11/7![Frontier logo]()
$190
This Super.com deal was found by Cheapflights users on 11/5. 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.
Sat 12/126:27 am -
Nonstop3h 17m
Mon 12/1412:36 pm -
Nonstop3h 05m
Deal found 11/5![Frontier logo]()
$183
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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.
Mon 12/146:27 am -
Nonstop3h 17m
Tue 12/1512:36 pm -
Nonstop3h 05m
Deal found 11/5![Frontier logo]()
$188
This Frontier deal was found by Cheapflights users on 11/7. 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.
Mon 12/146:27 am -
Nonstop3h 17m
Mon 12/1411:30 am -
1 stop10h 09m
Deal found 11/7![Frontier logo]()
$189
One-way flights from Dallas to OntarioSearch for one-way flight options from Dallas to Ontario. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
Search for one-way flight options from Dallas to Ontario. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
This CheapOair deal was found by Cheapflights users on 11/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/36:49 pm -
1 stop14h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 11/4. 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.
Tue 11/2410:54 pm -
1 stop17h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$97
This CheapOair deal was found by Cheapflights users on 11/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:30 am -
1 stop6h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Frontier logo]()
$98
This CheapOair deal was found by Cheapflights users on 11/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/308:54 pm -
1 stop23h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 11/4. 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.
Tue 12/226:49 pm -
1 stop5h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sat 12/511:21 am -
2 stops9h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$102
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 11/2510:54 pm -
1 stop10h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$104
This Mytrip deal was found by Cheapflights users on 11/4. 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.
Sun 12/2010:49 pm -
1 stop10h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$105
This Super.com deal was found by Cheapflights users on 11/3. 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.
Wed 11/113:17 pm -
Nonstop3h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$107
This Southwest deal was found by Cheapflights users on 11/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/53:50 pm -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Southwest logo]()
$133
This Delta deal was found by Cheapflights users on 11/4. 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 12/241:15 pm -
1 stop9h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Delta logo]()
$189
This Delta deal was found by Cheapflights users on 11/6. 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 1/162:58 pm -
1 stop8h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Delta logo]()
$200
Find flight deals from Dallas to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) 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 November 9, 2026.
Round-trip from | $183 (Super.com) |
|---|---|
One-way from | $96 (CheapOair) |
Popular in | July |
Cheapest in | February |
Average price | $294 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dallas 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 November 9, 2026.
Use the filters below to find and compare flights from Dallas 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
Sun 12/13
8:50 pm-11:51 am
1 stop17h 01m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$123
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Tue 12/1
8:00 am-9:28 am
Nonstop3h 28m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$149
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Mon 12/21
8:28 pm-8:01 am
2 stops13h 33m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$175
DallasOntario
DAL Dallas Love Field - ONT Ontario
DALONT
Dallas Love Field
Thu 12/24
1:15 pm-8:35 pm
1 stop9h 20m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$189
DallasOntario
DAL Dallas Love Field - ONT Ontario
DALONT
Dallas Love Field
Sat 1/16
6:05 am-10:10 am
1 stop6h 05m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$200
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Fri 1/8
4:39 pm-10:35 pm
1 stop7h 56m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$204
DallasOntario
DAL Dallas Love Field - ONT Ontario
DALONT
Dallas Love Field
Thu 11/26
12:11 pm-7:49 pm
1 stop9h 38m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$204
DallasOntario
DAL Dallas Love Field - ONT Ontario
DALONT
Dallas Love Field
Tue 2/9
2:55 pm-9:43 pm
1 stop8h 48m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$213
DallasOntario
DAL Dallas Love Field - ONT Ontario
DALONT
Dallas Love Field
Mon 12/21
7:20 pm-11:55 pm
1 stop6h 35m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$215
DallasOntario
DAL Dallas Love Field - ONT Ontario
DALONT
Dallas Love Field
Sat 12/26
7:55 pm-9:05 pm
Nonstop3h 10m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$241
Showing 1-10 of 43 resultsSorted by cheapest first
Best time to book a flight from Dallas to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Dallas with our price prediction graph.
A78-ONT
DAL-ONT
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 to Ontario
A78-ONT
DAL-ONT
DFW-ONT
What is the cheapest month to book a flight from Dallas to Ontario?
Currently, February is the cheapest month in which you can book a flight from Dallas to Ontario (average of $226). Flying from Dallas 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 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 November 9, 2026.
When flying from Dallas to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 9% versus a flight in the morning.
Weekly flight availability from Dallas to Ontario
Explore weekly flight availability from Dallas to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 9, 2026.
The most flights from A78 to ONT are scheduled on a Monday (18 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).
How much does it cost to fly round-trip from Dallas to Ontario?
Airfare is below average for this route at the moment.
Dallas to Ontario flights typically cost between $187 and $374 in December.The cheapest round-trip price found within the last 5 days was $183 on Frontier (Dec 12-Dec 14).
How far ahead should I book a flight from Dallas to Ontario?
The best time to book flights from Dallas to Ontario is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Dallas to Ontario?
Use this chart to determine the cheapest time to fly round-trip from Dallas to Ontario. Price data was last updated on November 7, 2026.
Travelers seeking maximum savings on their Dallas to Ontario flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Dallas 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 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 November 9, 2026.
Read reviews from past customers who have flown Southwest,American Airlines, andFrontier from Dallas to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from Dallas to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Dallas to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Dallas to Ontario by cabin class
Find flights from Dallas to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 9, 2026.
Dallas and Ontario flights
Browse other Dallas and Ontario flight options. Last updated on November 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Dallas to Ontario
Discover the top 3 airlines that operate flights from Dallas 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 November 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$272 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$218 | Average$404 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$244 | Average$418 | FlexibilityNo cancel fee | On-time63% |