$127+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DFW
Sep 10 — Sep 171
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 December, booked 79 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 August 11, 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 August 11, 2026.
This Booking.com deal was found by Cheapflights users on 8/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:40 pm -
1 stop12h 01m
Sat 9/123:30 pm -
Nonstop3h 16m
Deal found 8/10![Frontier logo]()
$214
This Frontier deal was found by Cheapflights users on 8/11. 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 9/410:17 pm -
1 stop5h 31m
Thu 9/107:00 am -
1 stop5h 30m
Deal found 8/11![Frontier logo]()
$215
This Expedia deal was found by Cheapflights users on 8/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:37 am -
Nonstop3h 09m
Fri 9/47:32 am -
Nonstop3h 06m
Deal found 8/10![Frontier logo]()
$216
This FlightHub deal was found by Cheapflights users on 8/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:00 am -
1 stop14h 54m
Tue 9/293:30 pm -
Nonstop3h 16m
Deal found 8/10![Frontier logo]()
$217
This Frontier deal was found by Cheapflights users on 8/8. 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.
Sun 8/238:17 am -
Nonstop3h 14m
Thu 9/105:22 pm -
Nonstop3h 17m
Deal found 8/8![Frontier logo]()
$220
This Super.com deal was found by Cheapflights users on 8/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:17 am -
Nonstop3h 14m
Tue 9/17:25 am -
1 stop9h 02m
Deal found 8/8![Frontier logo]()
$221
This Frontier deal was found by Cheapflights users on 8/7. 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.
Sun 8/308:17 am -
Nonstop3h 14m
Tue 9/17:30 am -
Nonstop3h 06m
Deal found 8/7![Frontier logo]()
$222
This Frontier deal was found by Cheapflights users on 8/7. 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.
Tue 8/259:37 am -
Nonstop3h 09m
Fri 8/287:32 am -
Nonstop3h 06m
Deal found 8/7![Frontier logo]()
$223
This Frontier deal was found by Cheapflights users on 8/9. 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.
Thu 9/177:46 pm -
Nonstop3h 08m
Mon 9/212:48 pm -
1 stop10h 59m
Deal found 8/9![Frontier logo]()
$224
This Frontier deal was found by Cheapflights users on 8/11. 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 9/48:17 am -
Nonstop3h 14m
Sun 9/67:32 am -
Nonstop3h 06m
Deal found 8/11![Frontier logo]()
$225
This Frontier deal was found by Cheapflights users on 8/10. 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.
Fri 10/98:07 am -
Nonstop3h 05m
Mon 10/196:00 am -
Nonstop3h 12m
Deal found 8/10![Frontier logo]()
$227
This Southwest deal was found by Cheapflights users on 8/9. 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.
Sat 9/53:15 pm -
1 stop4h 40m
Sat 9/122:55 pm -
Nonstop3h 05m
Deal found 8/9![Southwest logo]()
$242
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 August 11, 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 August 11, 2026.
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:00 pm -
1 stop4h 20m
Sat 11/79:30 am -
Nonstop3h 10m
Deal found 8/10![Southwest logo]()
$259
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:00 am -
2 stops9h 30m
Tue 10/278:10 am -
1 stop6h 11m
Deal found 8/10![Delta logo]()
$284
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 am -
1 stop8h 05m
Fri 9/115:45 am -
2 stops8h 27m
Deal found 8/7![United Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 8/7. 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 9/82:20 pm -
Nonstop3h 00m
Fri 9/117:20 pm -
Nonstop3h 05m
Deal found 8/7![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 8/7. 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.
Fri 9/116:00 am -
2 stops13h 00m
Mon 9/148:10 am -
1 stop6h 04m
Deal found 8/7![Delta logo]()
$292
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:56 pm -
1 stop6h 09m
Sat 9/263:57 pm -
2 stops9h 02m
Deal found 8/6![United Airlines logo]()
$304
This Southwest deal was found by Cheapflights users on 8/7. 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 9/108:30 am -
2 stops6h 45m
Mon 9/146:00 am -
1 stop5h 15m
Deal found 8/7![Southwest logo]()
$304
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:56 pm -
2 stops8h 03m
Mon 9/75:45 pm -
1 stop6h 14m
Deal found 8/7![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:24 pm -
2 stops7h 35m
Tue 10/69:50 am -
2 stops9h 51m
Deal found 8/7![United Airlines logo]()
$340
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:20 am -
Nonstop2h 55m
Thu 10/159:25 pm -
1 stop4h 20m
Deal found 8/10![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 8/6. 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.
Fri 1/16:00 am -
1 stop5h 54m
Tue 1/55:45 am -
1 stop7h 42m
Deal found 8/6![Delta logo]()
$387
This Southwest deal was found by Cheapflights users on 8/7. 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.
Mon 8/315:15 am -
1 stop4h 15m
Thu 9/36:40 am -
1 stop4h 40m
Deal found 8/7![Southwest logo]()
$351
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:56 pm -
1 stop6h 33m
Mon 9/75:15 am -
2 stops9h 35m
Deal found 8/7![United Airlines logo]()
$366
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:00 pm -
1 stop4h 20m
Mon 10/194:25 pm -
2 stops6h 55m
Deal found 8/10![Southwest logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:18 pm -
1 stop5h 20m
Sun 9/68:53 am -
1 stop5h 57m
Deal found 8/10![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 8/9. 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.
Sat 11/147:00 am -
2 stops6h 10m
Mon 11/164:40 pm -
2 stops5h 55m
Deal found 8/9![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/8. 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.
Sat 9/51:56 pm -
2 stops8h 03m
Tue 9/81:48 pm -
2 stops8h 13m
Deal found 8/8![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 8/8. 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 9/1111:00 am -
1 stop5h 10m
Sun 9/131:20 pm -
2 stops6h 55m
Deal found 8/8![Southwest logo]()
$390
This Southwest deal was found by Cheapflights users on 8/8. 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.
Sat 9/53:15 pm -
1 stop4h 40m
Tue 9/811:30 am -
Nonstop3h 00m
Deal found 8/8![Southwest logo]()
$392
This Southwest deal was found by Cheapflights users on 8/7. 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 9/32:40 pm -
1 stop6h 50m
Mon 9/77:10 am -
1 stop5h 10m
Deal found 8/7![Southwest logo]()
$397
This Southwest deal was found by Cheapflights users on 8/6. 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.
Thu 9/172:40 pm -
1 stop6h 50m
Sun 9/208:10 am -
1 stop5h 25m
Deal found 8/6![Southwest logo]()
$397
Last-minute flights from Ontario to DallasDiscover last-minute flight deals from Ontario to Dallas. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Dallas. Data last updated August 11, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:58 am -
1 stop19h 32m
Fri 8/287:32 am -
Nonstop3h 06m
Deal found 8/8![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 8/6. 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 8/164:09 pm -
1 stop11h 39m
Fri 8/217:32 am -
Nonstop3h 06m
Deal found 8/6![Frontier logo]()
$249
This Super.com deal was found by Cheapflights users on 8/6. 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.
Tue 8/186:00 am -
1 stop5h 19m
Fri 8/217:32 am -
Nonstop3h 06m
Deal found 8/6![Frontier logo]()
$247
This Frontier deal was found by Cheapflights users on 8/6. 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.
Thu 8/206:00 am -
1 stop5h 19m
Fri 8/217:32 am -
Nonstop3h 06m
Deal found 8/6![Frontier logo]()
$235
This Super.com deal was found by Cheapflights users on 8/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:50 am -
1 stop5h 22m
Wed 9/234:58 pm -
Nonstop3h 18m
Deal found 8/7![Frontier logo]()
$233
This Frontier deal was found by Cheapflights users on 8/8. 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 8/2111:50 am -
1 stop5h 22m
Tue 9/87:30 am -
Nonstop3h 06m
Deal found 8/8![Frontier logo]()
$244
This Frontier deal was found by Cheapflights users on 8/7. 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.
Fri 8/2110:49 am -
1 stop8h 55m
Mon 8/247:32 am -
Nonstop3h 06m
Deal found 8/7![Frontier logo]()
$250
This Frontier deal was found by Cheapflights users on 8/8. 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 8/216:00 am -
1 stop10h 03m
Sun 9/67:32 am -
Nonstop3h 06m
Deal found 8/8![Frontier logo]()
$253
This Frontier deal was found by Cheapflights users on 8/8. 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 8/2110:17 pm -
1 stop5h 31m
Thu 9/105:22 pm -
Nonstop3h 17m
Deal found 8/8![Frontier logo]()
$254
This CheapOair deal was found by Cheapflights users on 8/7. 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.
Fri 8/2110:49 am -
1 stop19h 20m
Sun 8/237:32 am -
Nonstop3h 06m
Deal found 8/7![Frontier logo]()
$260
This Southwest deal was found by Cheapflights users on 8/9. 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.
Sat 9/53:15 pm -
1 stop4h 40m
Sat 9/122:55 pm -
Nonstop3h 05m
Deal found 8/9![Southwest logo]()
$242
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:20 pm -
Nonstop3h 00m
Sat 9/122:55 pm -
Nonstop3h 05m
Deal found 8/10![Southwest logo]()
$253
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 August 11, 2026.
Search for one-way flight options from Ontario to Dallas. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This Super.com deal was found by Cheapflights users on 8/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:49 am -
1 stop5h 29m
Deal found 8/10![Frontier logo]()
$127
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:20 pm -
Nonstop3h 00m
Deal found 8/10![Southwest logo]()
$127
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:33 pm -
Nonstop3h 16m
Deal found 8/10![American Airlines logo]()
$128
This Frontier deal was found by Cheapflights users on 8/10. 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.
Mon 8/316:00 am -
1 stop5h 19m
Deal found 8/10![Frontier logo]()
$129
This Super.com deal was found by Cheapflights users on 8/6. 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 8/2811:50 am -
1 stop5h 22m
Deal found 8/6![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Sat 9/57:56 pm -
2 stops16h 08m
Deal found 8/8![Frontier logo]()
$131
This Frontier deal was found by Cheapflights users on 8/7. 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.
Fri 10/211:45 am -
1 stop5h 39m
Deal found 8/7![Frontier logo]()
$132
This Super.com deal was found by Cheapflights users on 8/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:56 pm -
1 stop26h 24m
Deal found 8/10![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/108:00 am -
2 stops9h 59m
Deal found 8/11![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 8/7. 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.
Fri 11/68:07 am -
Nonstop3h 05m
Deal found 8/7![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Wed 9/96:15 am -
2 stops13h 48m
Deal found 8/8![Frontier logo]()
$137
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:20 am -
1 stop5h 10m
Deal found 8/10![Southwest logo]()
$137
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 August 11, 2026.
Round-trip from | $214 (Booking.com) |
|---|---|
One-way from | $127 (Super.com) |
Popular in | June |
Cheapest in | October |
Average price | $275 |
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 August 11, 2026.
Use the filters below to find and compare flights from Ontario to Dallas that are best for you.
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OntarioDallas
ONT Ontario - DAL Dallas Love Field
ONTDAL
Ontario
Wed 10/7
5:00 pm-11:20 pm
1 stop4h 20m
Dallas Love Field
Sat 11/7
9:30 am-10:40 am
Nonstop3h 10m
$259
Quickest round-trip
OntarioDallas
ONT Ontario - DAL Dallas Love Field
ONTDAL
Ontario
Tue 9/8
2:20 pm-7:20 pm
Nonstop3h 00m
Dallas Love Field
Fri 9/11
7:20 pm-8:25 pm
Nonstop3h 05m
$267
OntarioDallas
ONT Ontario - DFW Dallas/Fort Worth
ONTDFW
Ontario
Thu 10/22
6:00 am-5:30 pm
2 stops9h 30m
Dallas/Fort Worth
Tue 10/27
8:10 am-12:21 pm
1 stop6h 11m
$284
OntarioDallas
ONT Ontario - DFW Dallas/Fort Worth
ONTDFW
Ontario
Tue 9/8
6:00 am-4:05 pm
1 stop8h 05m
Dallas/Fort Worth
Fri 9/11
5:45 am-12:12 pm
2 stops8h 27m
$292
OntarioDallas
ONT Ontario - DFW Dallas/Fort Worth
ONTDFW
Ontario
Fri 9/11
6:00 am-9:00 pm
2 stops13h 00m
Dallas/Fort Worth
Mon 9/14
8:10 am-12:14 pm
1 stop6h 04m
$292
OntarioDallas
ONT Ontario - DFW Dallas/Fort Worth
ONTDFW
Ontario
Wed 9/23
1:56 pm-10:05 pm
1 stop6h 09m
Dallas/Fort Worth
Sat 9/26
3:57 pm-10:59 pm
2 stops9h 02m
$304
OntarioDallas
ONT Ontario - DAL Dallas Love Field
ONTDAL
Ontario
Thu 9/10
8:30 am-5:15 pm
2 stops6h 45m
Dallas Love Field
Mon 9/14
6:00 am-9:15 am
1 stop5h 15m
$304
OntarioDallas
ONT Ontario - DFW Dallas/Fort Worth
ONTDFW
Ontario
Sat 9/5
1:56 pm-11:59 pm
2 stops8h 03m
Dallas/Fort Worth
Mon 9/7
5:45 pm-9:59 pm
1 stop6h 14m
$339
OntarioDallas
ONT Ontario - DFW Dallas/Fort Worth
ONTDFW
Ontario
Wed 9/30
1:24 pm-10:59 pm
2 stops7h 35m
Dallas/Fort Worth
Tue 10/6
9:50 am-5:41 pm
2 stops9h 51m
$340
OntarioDallas
ONT Ontario - DAL Dallas Love Field
ONTDAL
Ontario
Sat 10/10
6:20 am-11:15 am
Nonstop2h 55m
Dallas Love Field
Thu 10/15
9:25 pm-11:45 pm
1 stop4h 20m
$343
Showing 1-10 of 44 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-DAL
ONT-DFW
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-DAL
ONT-DFW
What is the cheapest month to book a flight from Ontario to Dallas?
Currently, October is the cheapest month in which you can book a flight from Ontario to Dallas (average of $260). Flying from Ontario to Dallas in June is currently the most expensive (average of $432). 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 August 11, 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 16% 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 August 11, 2026.
The most flights from ONT to A78 are scheduled on a Friday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (16 on average).
How much does it cost to fly round-trip from Ontario to Dallas?
Airfare is typical for this route at the moment.
Ontario to Dallas flights typically cost between $211 and $388 in September.The cheapest round-trip price found within the last 5 days was $214 on Frontier (Sep 8-Sep 12).
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 138 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, Frontier have had the lowest number of delays on this route, with just 12% 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 46 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 August 8, 2026.
Travelers seeking maximum savings on their Ontario to Dallas flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Wednesday evenings 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 August 11, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, 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.
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentIla,Mar 2025
HOU - DAL
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentIla,Mar 2025
HOU - DAL
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentIla,Mar 2025
HOU - DAL
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentIla,Mar 2025
HOU - DAL
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentIla,Mar 2025
HOU - DAL
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentIla,Mar 2025
HOU - DAL
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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Alternative routes for Ontario to Dallas
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Complete your trip
Complete your trip to Dallas by adding a car rental and/or hotel reservation to your travel itinerary.
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 August 11, 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 August 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Ontario to Dallas
Discover the top 5 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 August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$103 | Average$291 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$305 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$179 | Average$420 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$199 | Average$392 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$300 | Average$533 | FlexibilityNo cancel fee | On-time75% |