$92+ Cheap flights from Dallas to Ontario (ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
May 10 — May 171
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 September or August, booked 87 days in advance, depart on a Thursday or Tuesday and return on a Thursday
Cheap flight deals from Dallas to Ontario
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Last-minute
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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 April 10, 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 April 10, 2026.
This Super.com deal was found by Cheapflights users on 4/5. 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.
Tue 4/2110:45 pm
DFW
- ONT
1 stop22h 04m
Frontier
Fri 4/2412:59 am
ONT
- DFW
1 stop8h 10m
Frontier
Deal found 4/5![Frontier logo]()
$174
This Frontier deal was found by Cheapflights users on 4/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:18 am
DFW
- ONT
1 stop6h 47m
Frontier
Tue 5/264:39 pm
ONT
- DFW
1 stop11h 02m
Frontier
Deal found 4/5![Frontier logo]()
$175
This Super.com deal was found by Cheapflights users on 4/5. 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.
Wed 5/65:46 pm
DFW
- ONT
Nonstop3h 25m
Frontier
Wed 5/138:30 am
ONT
- DFW
Nonstop3h 09m
Frontier
Deal found 4/5![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:45 pm
DFW
- ONT
1 stop11h 39m
Frontier
Tue 4/2812:59 am
ONT
- DFW
1 stop15h 21m
Frontier
Deal found 4/6![Frontier logo]()
$177
This eDestinos deal was found by Cheapflights users on 4/6. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:44 pm
DFW
- ONT
2 stops27h 05m
Frontier
Mon 5/116:00 am
ONT
- DFW
1 stop26h 03m
Frontier
Deal found 4/6![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 4/9. 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 5/93:43 pm
DFW
- ONT
Nonstop3h 21m
Frontier
Tue 5/126:00 am
ONT
- DFW
1 stop12h 21m
Frontier
Deal found 4/9![Frontier logo]()
$179
This CheapOair deal was found by Cheapflights users on 4/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:19 pm
DFW
- ONT
1 stop13h 36m
Frontier
Mon 4/2712:59 am
ONT
- DFW
1 stop11h 48m
Frontier
Deal found 4/6![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 4/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:57 pm
DFW
- ONT
2 stops16h 08m
Frontier
Sun 5/178:30 am
ONT
- DFW
Nonstop3h 09m
Frontier
Deal found 4/8![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 4/7. 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.
Sat 4/2512:19 pm
DFW
- ONT
1 stop13h 36m
Frontier
Sat 5/27:44 pm
ONT
- DFW
1 stop8h 06m
Frontier
Deal found 4/7![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:05 am
DFW
- ONT
1 stop16h 50m
Frontier
Wed 4/2212:59 am
ONT
- DFW
1 stop8h 10m
Frontier
Deal found 4/6![Frontier logo]()
$184
This CheapOair deal was found by Cheapflights users on 4/5. 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.
Fri 5/110:25 pm
DFW
- ONT
1 stop27h 30m
Frontier
Sun 5/35:12 pm
ONT
- DFW
1 stop15h 57m
Frontier
Deal found 4/5![Frontier logo]()
$185
This Southwest deal was found by Cheapflights users on 4/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:35 pm
DAL
- ONT
Nonstop3h 10m
Southwest
Mon 5/411:35 am
ONT
- DAL
Nonstop2h 50m
Southwest
Deal found 4/6![Southwest logo]()
$357
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 April 10, 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 April 10, 2026.
This Southwest deal was found by Cheapflights users on 4/5. 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.
Wed 6/39:00 am
DAL
- ONT
1 stop8h 10m
Southwest
Mon 6/84:20 pm
ONT
- DAL
Nonstop2h 55m
Southwest
Deal found 4/5![Southwest logo]()
$367
This Delta deal was found by Cheapflights users on 4/9. 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 5/2912:22 pm
DAL
- ONT
1 stop8h 14m
Delta
Tue 6/210:00 pm
ONT
- DAL
1 stop9h 29m
Delta
Deal found 4/9![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 4/9. 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 5/295:45 am
DFW
- ONT
2 stops8h 27m
United Airlines
Tue 6/21:18 pm
ONT
- DFW
1 stop6h 41m
United Airlines
Deal found 4/9![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 4/9. 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.
Mon 5/47:35 pm
DAL
- ONT
Nonstop3h 10m
Southwest
Sat 5/96:00 am
ONT
- DAL
2 stops9h 35m
Southwest
Deal found 4/9![Southwest logo]()
$372
This Delta deal was found by Cheapflights users on 4/9. 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 5/2912:22 pm
DAL
- ONT
1 stop8h 14m
Delta
Mon 6/110:00 pm
ONT
- DAL
1 stop9h 29m
Delta
Deal found 4/9![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 4/9. 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 5/512:20 pm
DAL
- ONT
Nonstop3h 10m
Southwest
Sat 5/98:40 am
ONT
- DAL
2 stops6h 15m
Southwest
Deal found 4/9![Southwest logo]()
$372
This Delta deal was found by Cheapflights users on 4/5. 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.
Wed 5/204:25 pm
DFW
- ONT
2 stops9h 09m
Delta
Tue 5/2610:00 pm
ONT
- DFW
1 stop8h 50m
Delta
Deal found 4/5![Delta logo]()
$382
This Southwest deal was found by Cheapflights users on 4/5. 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.
Wed 5/2012:20 pm
DAL
- ONT
Nonstop3h 10m
Southwest
Sat 5/306:00 am
ONT
- DAL
2 stops8h 00m
Southwest
Deal found 4/5![Southwest logo]()
$372
This Delta deal was found by Cheapflights users on 4/5. 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 5/812:17 pm
DFW
- ONT
2 stops13h 17m
Delta
Fri 5/151:29 pm
ONT
- DFW
1 stop5h 46m
Delta
Deal found 4/5![Delta logo]()
$382
This Southwest deal was found by Cheapflights users on 4/5. 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.
Fri 6/52:25 pm
DAL
- ONT
Nonstop3h 00m
Southwest
Tue 7/281:05 pm
ONT
- DAL
1 stop7h 05m
Southwest
Deal found 4/5![Southwest logo]()
$374
This Delta deal was found by Cheapflights users on 4/9. 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 5/283:10 pm
DFW
- ONT
2 stops10h 24m
Delta
Tue 6/21:35 pm
ONT
- DFW
1 stop8h 22m
Delta
Deal found 4/9![Delta logo]()
$382
This Southwest deal was found by Cheapflights users on 4/5. 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 5/146:45 am
DAL
- ONT
1 stop5h 10m
Southwest
Sun 5/1711:05 am
ONT
- DAL
1 stop7h 00m
Southwest
Deal found 4/5![Southwest logo]()
$377
This Delta deal was found by Cheapflights users on 4/9. 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 5/283:10 pm
DFW
- ONT
2 stops10h 24m
Delta
Sun 5/316:00 am
ONT
- DFW
1 stop5h 51m
Delta
Deal found 4/9![Delta logo]()
$382
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:00 am
DAL
- ONT
2 stops7h 10m
Southwest
Thu 5/148:00 am
ONT
- DAL
1 stop5h 20m
Southwest
Deal found 4/7![Southwest logo]()
$382
This Delta deal was found by Cheapflights users on 4/9. 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 5/44:15 pm
DFW
- ONT
2 stops9h 29m
Delta
Sat 5/96:45 am
ONT
- DFW
2 stops12h 30m
Delta
Deal found 4/9![Delta logo]()
$387
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:49 am
DFW
- ONT
1 stop7h 47m
Delta
Sun 5/106:00 am
ONT
- DFW
1 stop5h 51m
Delta
Deal found 4/7![Delta logo]()
$397
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:06 pm
DFW
- ONT
1 stop6h 37m
Delta
Mon 5/111:29 pm
ONT
- DFW
1 stop5h 46m
Delta
Deal found 4/7![Delta logo]()
$397
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:49 am
DFW
- ONT
1 stop7h 47m
Delta
Mon 5/410:15 pm
ONT
- DFW
1 stop8h 35m
Delta
Deal found 4/7![Delta logo]()
$397
This Delta deal was found by Cheapflights users on 4/6. 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 5/167:30 am
DFW
- ONT
1 stop6h 49m
Delta
Sun 5/1710:00 pm
ONT
- DFW
1 stop8h 50m
Delta
Deal found 4/6![Delta logo]()
$398
This Delta deal was found by Cheapflights users on 4/9. 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 5/123:10 pm
DFW
- ONT
2 stops10h 24m
Delta
Fri 5/159:50 am
ONT
- DFW
2 stops12h 04m
Delta
Deal found 4/9![Delta logo]()
$408
Last-minute flights from Dallas to OntarioDiscover last-minute flight deals from Dallas to Ontario. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Dallas to Ontario. Data last updated April 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:45 pm
DFW
- ONT
1 stop11h 39m
Frontier
Tue 4/2812:59 am
ONT
- DFW
1 stop15h 21m
Frontier
Deal found 4/6![Frontier logo]()
$177
This Frontier deal was found by Cheapflights users on 4/10. 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.
Thu 4/2310:30 pm
DFW
- ONT
Nonstop3h 25m
Frontier
Thu 5/710:50 am
ONT
- DFW
1 stop11h 48m
Frontier
Deal found 4/10![Frontier logo]()
$184
This CheapOair deal was found by Cheapflights users on 4/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:19 pm
DFW
- ONT
1 stop13h 36m
Frontier
Mon 4/2712:59 am
ONT
- DFW
1 stop11h 48m
Frontier
Deal found 4/6![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 4/7. 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.
Sat 4/2512:19 pm
DFW
- ONT
1 stop13h 36m
Frontier
Sat 5/27:44 pm
ONT
- DFW
1 stop8h 06m
Frontier
Deal found 4/7![Frontier logo]()
$182
This Mytrip deal was found by Cheapflights users on 4/7. 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 4/2512:19 pm
DFW
- ONT
1 stop21h 07m
Frontier
Wed 4/2912:59 am
ONT
- DFW
1 stop6h 14m
Frontier
Deal found 4/7![Frontier logo]()
$186
This CheapOair deal was found by Cheapflights users on 4/5. 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.
Fri 5/110:25 pm
DFW
- ONT
1 stop27h 30m
Frontier
Sun 5/35:12 pm
ONT
- DFW
1 stop15h 57m
Frontier
Deal found 4/5![Frontier logo]()
$185
This Southwest deal was found by Cheapflights users on 4/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:35 pm
DAL
- ONT
Nonstop3h 10m
Southwest
Mon 5/411:35 am
ONT
- DAL
Nonstop2h 50m
Southwest
Deal found 4/6![Southwest logo]()
$357
This Frontier deal was found by Cheapflights users on 4/6. 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.
Sun 5/38:36 pm
DFW
- ONT
2 stops22h 02m
Frontier
Tue 5/58:30 am
ONT
- DFW
Nonstop3h 09m
Frontier
Deal found 4/6![Frontier logo]()
$181
This Super.com deal was found by Cheapflights users on 4/5. 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.
Wed 5/65:46 pm
DFW
- ONT
Nonstop3h 25m
Frontier
Wed 5/138:30 am
ONT
- DFW
Nonstop3h 09m
Frontier
Deal found 4/5![Frontier logo]()
$176
This eDestinos deal was found by Cheapflights users on 4/6. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:44 pm
DFW
- ONT
2 stops27h 05m
Frontier
Mon 5/116:00 am
ONT
- DFW
1 stop26h 03m
Frontier
Deal found 4/6![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 4/9. 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 5/93:43 pm
DFW
- ONT
Nonstop3h 21m
Frontier
Wed 5/2010:50 am
ONT
- DFW
1 stop7h 31m
Frontier
Deal found 4/9![Frontier logo]()
$179
This Frontier deal was found by Cheapflights users on 4/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:18 am
DFW
- ONT
1 stop6h 47m
Frontier
Tue 5/264:39 pm
ONT
- DFW
1 stop11h 02m
Frontier
Deal found 4/5![Frontier logo]()
$175
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 April 10, 2026.
Search for one-way flight options from Dallas to Ontario. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This CheapOair deal was found by Cheapflights users on 4/5. 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.
Fri 5/810:17 pm
DFW
- ONT
1 stop13h 48m
Frontier
Deal found 4/5![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/410:44 pm
DFW
- ONT
1 stop18h 25m
Frontier
Deal found 4/8![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 4/5. 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.
Tue 4/2110:45 pm
DFW
- ONT
1 stop22h 04m
Frontier
Deal found 4/5![Frontier logo]()
$94
This CheapOair deal was found by Cheapflights users on 4/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:45 pm
DFW
- ONT
1 stop11h 39m
Frontier
Deal found 4/6![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 4/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/204:39 pm
DFW
- ONT
1 stop5h 25m
Frontier
Deal found 4/6![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 4/9. 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.
Mon 6/110:00 am
DFW
- ONT
2 stops23h 35m
Frontier
Deal found 4/9![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:40 am
DFW
- ONT
2 stops24h 55m
Frontier
Deal found 4/6![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:18 am
DFW
- ONT
1 stop20h 31m
Frontier
Deal found 4/6![Frontier logo]()
$103
This CheapOair deal was found by Cheapflights users on 4/10. 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.
Thu 4/302:05 pm
DFW
- ONT
Nonstop3h 25m
Frontier
Deal found 4/10![Frontier logo]()
$104
This Super.com deal was found by Cheapflights users on 4/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:45 pm
DFW
- ONT
1 stop13h 59m
Frontier
Deal found 4/6![Frontier logo]()
$105
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:40 pm
DAL
- ONT
Nonstop3h 10m
Southwest
Deal found 4/7![Southwest logo]()
$179
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1912:20 pm
DAL
- ONT
Nonstop3h 10m
Southwest
Deal found 4/7![Southwest logo]()
$186
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 April 10, 2026.
Round-trip from | $174 (Super.com) |
|---|---|
One-way from | $92 (CheapOair) |
Popular in | March |
Cheapest in | September |
Average price | $229 |
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 2,558,603 searches. Data last updated April 10, 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
DAL - ONT
DALONT
Dallas Love Field
Wed 6/3
9:00 am-3:10 pm
1 stop8h 10m
Ontario
Mon 6/8
4:20 pm-9:15 pm
Nonstop2h 55m
$367
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Mon 5/4
7:35 pm-8:45 pm
Nonstop3h 10m
Ontario
Sat 5/9
6:00 am-5:35 pm
2 stops9h 35m
$372
Quickest round-trip
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Tue 5/5
12:20 pm-1:30 pm
Nonstop3h 10m
Ontario
Sat 5/9
8:40 am-4:55 pm
2 stops6h 15m
$372
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Wed 5/20
12:20 pm-1:30 pm
Nonstop3h 10m
Ontario
Sat 5/30
6:00 am-4:00 pm
2 stops8h 00m
$372
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Fri 6/5
2:25 pm-3:25 pm
Nonstop3h 00m
Ontario
Tue 7/28
1:05 pm-10:10 pm
1 stop7h 05m
$374
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Fri 5/29
12:22 pm-6:36 pm
1 stop8h 14m
Ontario
Tue 6/2
10:00 pm-9:29 am
1 stop9h 29m
$377
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Fri 5/29
12:22 pm-6:36 pm
1 stop8h 14m
Ontario
Mon 6/1
10:00 pm-9:29 am
1 stop9h 29m
$377
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Thu 5/14
6:45 am-9:55 am
1 stop5h 10m
Ontario
Sun 5/17
11:05 am-8:05 pm
1 stop7h 00m
$377
DallasOntario
DFW - ONT
DFWONT
Dallas/Fort Worth
Fri 5/29
5:45 am-12:12 pm
2 stops8h 27m
Ontario
Tue 6/2
1:18 pm-9:59 pm
1 stop6h 41m
$382
DallasOntario
DFW - ONT
DFWONT
Dallas/Fort Worth
Wed 5/20
4:25 pm-11:34 pm
2 stops9h 09m
Ontario
Tue 5/26
10:00 pm-8:50 am
1 stop8h 50m
$382
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
How far ahead should I book a flight from Dallas to Ontario?
Use this chart to determine the optimal time to book a round-trip flight from Dallas to Ontario. Price data was last updated on April 3, 2026.
The best time to book flights from Dallas to Ontario is 87 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 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 $33). Flying from Dallas to Ontario in March is currently the most expensive (average of $111). 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 April 10, 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 at noon, which can drop the price by up to 31% versus a flight in the morning.
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 April 4, 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 evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 April 10, 2026.
The most flights from A78 to ONT are scheduled on a Thursday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).
How much does it cost to fly round-trip from Dallas to Ontario?
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 April 10, 2026.
Read reviews from past customers who have flown Southwest,Delta, andAmerican Airlines 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.
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 April 10, 2026.
Dallas and Ontario flights
Browse other Dallas and Ontario flight options. Last updated on April 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Dallas to Ontario flights
Consider these flights traveling from Dallas to Ontario.
Top 5 airlines flying from Dallas to Ontario
Discover the top 5 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 2,558,603 searches. Data last updated April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$52 | Average$153 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$79 | Average$203 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$351 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$164 | Average$320 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$178 | Average$318 | FlexibilityNo cancel fee | On-timeN/A |