$106+ Cheap flights from Ontario (ONT) to Dallas
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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DFW
Jul 20 — Jul 271
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Dallas 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 Ontario to Dallas are usually found in October or August, booked 90 days in advance, depart on a Thursday or Tuesday and return on a Thursday
Cheap flight deals from Ontario to Dallas
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Last-minute
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Cheapest flights from Ontario to DallasExplore the most affordable flight options available from Ontario to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
Explore the most affordable flight options available from Ontario to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
This Frontier deal was found by Cheapflights users on 6/16. 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 9/138:07 am
ONT
- DFW
Nonstop3h 05m
Frontier
Wed 9/166:00 am
DFW
- ONT
Nonstop3h 12m
Frontier
Deal found 6/16![Frontier logo]()
$237
This Frontier deal was found by Cheapflights users on 6/15. 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 8/118:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Tue 8/1110:51 pm
DFW
- ONT
1 stop11h 12m
Frontier
Deal found 6/15![Frontier logo]()
$243
This Frontier deal was found by Cheapflights users on 6/16. 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 8/88:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Wed 8/1210:51 pm
DFW
- ONT
1 stop11h 12m
Frontier
Deal found 6/16![Frontier logo]()
$244
This Orbitz deal was found by Cheapflights users on 6/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:49 pm
ONT
- DFW
1 stop25h 06m
Frontier
Sun 9/136:00 am
DFW
- ONT
Nonstop3h 12m
Frontier
Deal found 6/16![Frontier logo]()
$245
This Frontier deal was found by Cheapflights users on 6/15. 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 10/238:07 am
ONT
- DFW
Nonstop3h 05m
Frontier
Mon 10/266:48 pm
DFW
- ONT
1 stop7h 07m
Frontier
Deal found 6/15![Frontier logo]()
$247
This Frontier deal was found by Cheapflights users on 6/15. 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 9/178:07 am
ONT
- DFW
Nonstop3h 05m
Frontier
Tue 9/228:05 am
DFW
- ONT
1 stop7h 52m
Frontier
Deal found 6/15![Frontier logo]()
$249
This CheapOair deal was found by Cheapflights users on 6/16. 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.
Tue 8/116:00 am
ONT
- DFW
1 stop7h 34m
Frontier
Fri 8/149:07 am
DFW
- ONT
1 stop16h 43m
Frontier
Deal found 6/16![Frontier logo]()
$253
This Frontier deal was found by Cheapflights users on 6/16. 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 7/308:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Tue 8/44:30 pm
DFW
- ONT
1 stop9h 20m
Frontier
Deal found 6/16![Frontier logo]()
$254
This Super.com deal was found by Cheapflights users on 6/20. 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.
Sat 7/188:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Sat 7/257:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/20![Frontier logo]()
$255
This Frontier deal was found by Cheapflights users on 6/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:07 am
ONT
- DFW
Nonstop3h 05m
Frontier
Tue 10/206:48 pm
DFW
- ONT
1 stop7h 07m
Frontier
Deal found 6/19![Frontier logo]()
$256
This Super.com deal was found by Cheapflights users on 6/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/258:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Sat 8/87:35 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/19![Frontier logo]()
$257
This CheapOair deal was found by Cheapflights users on 6/16. 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.
Tue 7/148:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Tue 8/44:30 pm
DFW
- ONT
1 stop19h 34m
Frontier
Deal found 6/16![Frontier logo]()
$258
Best flights from Ontario to DallasDiscover carefully curated flight deals from Ontario to Dallas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
Discover carefully curated flight deals from Ontario to Dallas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
This Southwest deal was found by Cheapflights users on 6/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:45 am
ONT
- DAL
1 stop5h 05m
Southwest
Sat 8/2212:45 pm
DAL
- ONT
2 stops6h 35m
Southwest
Deal found 6/19![Southwest logo]()
$358
This Delta deal was found by Cheapflights users on 6/20. 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 11/147:00 am
ONT
- DFW
1 stop7h 57m
Delta
Mon 11/236:05 pm
DFW
- ONT
1 stop7h 43m
Delta
Deal found 6/20![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Thu 8/65:45 am
ONT
- DFW
1 stop5h 49m
United Airlines
Mon 8/105:10 am
DFW
- ONT
2 stops9h 02m
United Airlines
Deal found 6/19![United Airlines logo]()
$402
This KAYAK deal was found by Cheapflights users on 6/17. 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.
Fri 7/107:00 am
ONT
- DFW
Nonstop3h 09m
American Airlines
Wed 7/153:34 pm
DFW
- ONT
1 stop4h 44m
American Airlines
Deal found 6/17![American Airlines logo]()
$557
This Southwest deal was found by Cheapflights users on 6/18. 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 7/286:00 am
ONT
- DAL
1 stop7h 05m
Southwest
Wed 7/296:35 pm
DAL
- ONT
1 stop5h 45m
Southwest
Deal found 6/18![Southwest logo]()
$385
This Delta deal was found by Cheapflights users on 6/20. 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.
Thu 10/110:00 pm
ONT
- DFW
1 stop8h 48m
Delta
Fri 10/26:12 pm
DFW
- ONT
1 stop7h 35m
Delta
Deal found 6/20![Delta logo]()
$431
This Southwest deal was found by Cheapflights users on 6/15. 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 7/255:30 am
ONT
- DAL
2 stops6h 05m
Southwest
Tue 8/2511:30 am
DAL
- ONT
Nonstop3h 00m
Southwest
Deal found 6/15![Southwest logo]()
$393
This United Airlines deal was found by Cheapflights users on 6/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:00 am
ONT
- DFW
1 stop5h 40m
United Airlines
Sat 10/35:30 pm
DFW
- ONT
1 stop6h 29m
United Airlines
Deal found 6/20![United Airlines logo]()
$443
This Southwest deal was found by Cheapflights users on 6/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:15 am
ONT
- DAL
2 stops6h 15m
Southwest
Mon 8/104:45 pm
DAL
- ONT
1 stop4h 40m
Southwest
Deal found 6/19![Southwest logo]()
$398
This Delta deal was found by Cheapflights users on 6/20. 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.
Fri 10/21:04 pm
ONT
- DFW
1 stop5h 56m
Delta
Sun 10/44:21 pm
DFW
- ONT
1 stop8h 05m
Delta
Deal found 6/20![Delta logo]()
$475
This Southwest deal was found by Cheapflights users on 6/15. 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 7/185:30 am
ONT
- DAL
2 stops6h 05m
Southwest
Tue 7/211:35 pm
DAL
- ONT
2 stops5h 30m
Southwest
Deal found 6/15![Southwest logo]()
$404
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Sat 7/45:00 am
ONT
- DFW
2 stops9h 30m
United Airlines
Tue 7/75:45 am
DFW
- ONT
2 stops8h 27m
United Airlines
Deal found 6/19![United Airlines logo]()
$501
This Delta deal was found by Cheapflights users on 6/16. 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.
Sun 8/26:00 am
ONT
- DFW
1 stop5h 30m
Delta
Sat 8/87:40 am
DFW
- ONT
2 stops10h 44m
Delta
Deal found 6/16![Delta logo]()
$500
This Southwest deal was found by Cheapflights users on 6/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:55 am
ONT
- DAL
Nonstop2h 50m
Southwest
Mon 11/169:40 am
DAL
- ONT
Nonstop3h 10m
Southwest
Deal found 6/19![Southwest logo]()
$421
This United Airlines deal was found by Cheapflights users on 6/17. 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 7/235:45 am
ONT
- DFW
1 stop8h 31m
United Airlines
Sun 7/265:45 am
DFW
- ONT
2 stops8h 27m
United Airlines
Deal found 6/17![United Airlines logo]()
$554
This Delta deal was found by Cheapflights users on 6/15. 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 7/101:00 pm
ONT
- DFW
2 stops8h 59m
Delta
Mon 7/136:12 pm
DFW
- ONT
1 stop7h 36m
Delta
Deal found 6/15![Delta logo]()
$524
This Southwest deal was found by Cheapflights users on 6/17. 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 9/175:15 am
ONT
- DAL
2 stops7h 30m
Southwest
Mon 9/2110:00 am
DAL
- ONT
2 stops7h 05m
Southwest
Deal found 6/17![Southwest logo]()
$443
This United Airlines deal was found by Cheapflights users on 6/18. 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 7/96:00 am
ONT
- DFW
2 stops8h 51m
United Airlines
Sat 7/186:00 am
DFW
- ONT
1 stop8h 12m
United Airlines
Deal found 6/18![United Airlines logo]()
$560
This Southwest deal was found by Cheapflights users on 6/16. 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 7/174:20 pm
ONT
- DAL
Nonstop2h 55m
Southwest
Mon 7/206:00 am
DAL
- ONT
2 stops7h 20m
Southwest
Deal found 6/16![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 6/15. 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 7/274:20 pm
ONT
- DAL
Nonstop2h 55m
Southwest
Fri 7/317:25 am
DAL
- ONT
1 stop7h 20m
Southwest
Deal found 6/15![Southwest logo]()
$455
This Southwest deal was found by Cheapflights users on 6/17. 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 7/308:35 am
ONT
- DAL
1 stop7h 35m
Southwest
Sun 8/22:30 pm
DAL
- ONT
1 stop5h 50m
Southwest
Deal found 6/17![Southwest logo]()
$459
This Southwest deal was found by Cheapflights users on 6/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:20 pm
ONT
- DAL
Nonstop2h 55m
Southwest
Sun 8/26:20 pm
DAL
- ONT
1 stop5h 05m
Southwest
Deal found 6/19![Southwest logo]()
$465
This Southwest deal was found by Cheapflights users on 6/15. 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 7/94:20 pm
ONT
- DAL
Nonstop2h 55m
Southwest
Mon 7/207:10 pm
DAL
- ONT
1 stop6h 25m
Southwest
Deal found 6/15![Southwest logo]()
$466
Last-minute flights from Ontario to DallasDiscover last-minute flight deals from Ontario to Dallas. Data last updated June 20, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Dallas. Data last updated June 20, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/86:00 am
ONT
- DFW
1 stop10h 03m
Frontier
Tue 7/147:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/17![Frontier logo]()
$264
This Super.com deal was found by Cheapflights users on 6/20. 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.
Sat 7/118:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Wed 7/157:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/20![Frontier logo]()
$256
This Frontier deal was found by Cheapflights users on 6/16. 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 7/1410:49 am
ONT
- DFW
1 stop7h 47m
Frontier
Tue 8/44:30 pm
DFW
- ONT
1 stop9h 20m
Frontier
Deal found 6/16![Frontier logo]()
$253
This Expedia deal was found by Cheapflights users on 6/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Tue 7/217:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/19![Frontier logo]()
$259
This Super.com deal was found by Cheapflights users on 6/17. 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 7/148:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Fri 7/177:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/17![Frontier logo]()
$260
This Super.com deal was found by Cheapflights users on 6/20. 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.
Tue 7/148:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Mon 7/277:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/20![Frontier logo]()
$262
This Super.com deal was found by Cheapflights users on 6/20. 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.
Wed 7/156:00 am
ONT
- DFW
1 stop5h 19m
Frontier
Tue 7/287:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/20![Frontier logo]()
$263
This Super.com deal was found by Cheapflights users on 6/20. 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.
Sat 7/188:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Sat 7/257:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/20![Frontier logo]()
$255
This Super.com deal was found by Cheapflights users on 6/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/258:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Sat 8/87:35 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/19![Frontier logo]()
$257
This Frontier deal was found by Cheapflights users on 6/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/258:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Wed 8/197:30 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/19![Frontier logo]()
$261
This Southwest deal was found by Cheapflights users on 6/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/252:20 pm
ONT
- DAL
1 stop7h 10m
Southwest
Sat 8/82:55 pm
DAL
- ONT
Nonstop3h 05m
Southwest
Deal found 6/19![Southwest logo]()
$343
This Frontier deal was found by Cheapflights users on 6/16. 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 7/308:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Tue 8/44:30 pm
DFW
- ONT
1 stop9h 20m
Frontier
Deal found 6/16![Frontier logo]()
$254
One-way flights from Ontario to DallasSearch for one-way flight options from Ontario to Dallas. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
Search for one-way flight options from Ontario to Dallas. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
This Gotogate deal was found by Cheapflights users on 6/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:49 am
ONT
- DFW
1 stop7h 47m
Frontier
Deal found 6/16![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/216:00 am
ONT
- DFW
1 stop7h 34m
Frontier
Deal found 6/16![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:00 am
ONT
- DFW
1 stop16h 29m
Frontier
Deal found 6/20![Frontier logo]()
$119
This Super.com deal was found by Cheapflights users on 6/20. 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.
Sat 8/18:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/20![Frontier logo]()
$120
This Expedia deal was found by Cheapflights users on 6/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:07 am
ONT
- DFW
Nonstop3h 05m
Frontier
Deal found 6/17![Frontier logo]()
$121
This Frontier deal was found by Cheapflights users on 6/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/20![Frontier logo]()
$122
This Super.com deal was found by Cheapflights users on 6/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/19![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Fri 7/318:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/19![Frontier logo]()
$126
This CheapOair deal was found by Cheapflights users on 6/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/20![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 am
ONT
- DFW
1 stop29h 19m
Frontier
Deal found 6/20![Frontier logo]()
$130
This Southwest deal was found by Cheapflights users on 6/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/52:15 pm
ONT
- DAL
Nonstop3h 00m
Southwest
Deal found 6/19![Southwest logo]()
$167
This Delta deal was found by Cheapflights users on 6/19. 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.
Wed 9/1611:59 am
ONT
- DAL
1 stop8h 39m
Delta
Deal found 6/19![Delta logo]()
$177
Find flight deals from Ontario to Dallas
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Dallas (A78). 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 June 20, 2026.
Round-trip from | $237 (Frontier) |
|---|---|
One-way from | $106 (Gotogate) |
Popular in | June |
Cheapest in | October |
Average price | $412 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Dallas 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 June 20, 2026.
Use the filters below to find and compare flights from Ontario to Dallas that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioDallas
ONT - DAL
ONTDAL
Ontario
Tue 8/11
5:45 am-12:50 pm
1 stop5h 05m
Dallas Love Field
Sat 8/22
12:45 pm-5:20 pm
2 stops6h 35m
$358
OntarioDallas
ONT - DAL
ONTDAL
Ontario
Tue 7/28
6:00 am-3:05 pm
1 stop7h 05m
Dallas Love Field
Wed 7/29
6:35 pm-10:20 pm
1 stop5h 45m
$385
OntarioDallas
ONT - DFW
ONTDFW
Ontario
Sat 11/14
7:00 am-4:57 pm
1 stop7h 57m
Dallas/Fort Worth
Mon 11/23
6:05 pm-11:48 pm
1 stop7h 43m
$393
OntarioDallas
ONT - DAL
ONTDAL
Ontario
Sat 7/25
5:30 am-1:35 pm
2 stops6h 05m
Dallas Love Field
Tue 8/25
11:30 am-12:30 pm
Nonstop3h 00m
$393
OntarioDallas
ONT - DAL
ONTDAL
Ontario
Thu 8/6
5:15 am-1:30 pm
2 stops6h 15m
Dallas Love Field
Mon 8/10
4:45 pm-7:25 pm
1 stop4h 40m
$398
OntarioDallas
ONT - DFW
ONTDFW
Ontario
Thu 8/6
5:45 am-1:34 pm
1 stop5h 49m
Dallas/Fort Worth
Mon 8/10
5:10 am-12:12 pm
2 stops9h 02m
$402
OntarioDallas
ONT - DAL
ONTDAL
Ontario
Sat 7/18
5:30 am-1:35 pm
2 stops6h 05m
Dallas Love Field
Tue 7/21
1:35 pm-5:05 pm
2 stops5h 30m
$404
Quickest round-trip
OntarioDallas
ONT - DAL
ONTDAL
Ontario
Thu 11/12
6:55 am-11:45 am
Nonstop2h 50m
Dallas Love Field
Mon 11/16
9:40 am-10:50 am
Nonstop3h 10m
$421
OntarioDallas
ONT - DFW
ONTDFW
Ontario
Thu 10/1
10:00 pm-8:48 am
1 stop8h 48m
Dallas/Fort Worth
Fri 10/2
6:12 pm-11:47 pm
1 stop7h 35m
$431
OntarioDallas
ONT - DFW
ONTDFW
Ontario
Sat 10/3
5:00 am-12:40 pm
1 stop5h 40m
Dallas/Fort Worth
Sat 10/3
5:30 pm-9:59 pm
1 stop6h 29m
$443
Showing 1-10 of 46 resultsSorted by cheapest first
Best time to book a flight from Ontario to Dallas
Have a flexible travel schedule? Discover the best time to fly to Dallas from Ontario with our price prediction graph.
ONT-A78
ONT-DFW
ONT-DAL
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 Ontario to Dallas
ONT-A78
ONT-DFW
ONT-DAL
What is the cheapest month to book a flight from Ontario to Dallas?
Currently, January is the cheapest month in which you can book a flight from Ontario to Dallas (average of $54). Flying from Ontario to Dallas in June is currently the most expensive (average of $183). 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 ONT to DFW?
Find hourly flight availability from Ontario to Dallas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 20, 2026.
A simple way to save on the total cost of your ticket is to fly from Ontario to Dallas in the afternoon. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight at noon.
Weekly flight availability from Ontario to Dallas
Explore weekly flight availability from Ontario to Dallas. 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 June 20, 2026.
The most flights from ONT to A78 are scheduled on a Friday (24 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (19 on average).
How much does it cost to fly round-trip from Ontario to Dallas?
How often are flights from Ontario to Dallas delayed?
About 13% of weekly flights between Ontario and Dallas have experienced delays in the past year, with the average delay time being 140 minutes.
What is the most punctual flight time for Ontario to Dallas flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Ontario to Dallas flights?
Over the last year, American Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
How far ahead should I book a flight from Ontario to Dallas?
The best time to book flights from Ontario to Dallas is 89 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 Ontario to Dallas?
Use this chart to determine the cheapest time to fly round-trip from Ontario to Dallas. Price data was last updated on June 20, 2026.
Travelers seeking maximum savings on their Ontario to Dallas flight should consider departing on Thursday afternoons 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 Ontario to Dallas 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 Ontario to Dallas trip
Our travel experts
Reviews of airlines servicing Dallas
Get insights into the airlines that provide service to Dallas. 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 Dallas. Reviews last updated June 20, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andAmerican Airlines from Ontario to Dallas. 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.
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from Ontario to Dallas. 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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Complete your trip
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Search flights from Ontario to Dallas by cabin class
Find flights from Ontario to Dallas, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Dallas flights
Browse other Ontario and Dallas flight options. Last updated on June 20, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on June 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Ontario to Dallas
Discover the top 4 airlines that operate flights from Ontario to Dallas. 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 June 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$100 | Average$282 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$169 | Average$385 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$184 | Average$390 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$300 | Average$533 | FlexibilityNo cancel fee | On-time75% |