$123+ Cheap flights from Dallas to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Oct 8 — Oct 151
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Dallas to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Dallas to Ontario are usually found in February or January, booked 82 days in advance, depart on a Thursday or Tuesday and return on a Tuesday
Cheap flight deals from Dallas to Ontario
Cheapest
Best
Last-minute
One-way
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 September 8, 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 September 8, 2026.
This CheapOair deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:30 pm -
Nonstop3h 16m
Wed 9/2311:45 am -
1 stop19h 50m
Deal found 9/3![Frontier logo]()
$175
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:00 am -
Nonstop3h 21m
Wed 12/1610:32 pm -
1 stop5h 00m
Deal found 9/4![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:22 pm -
Nonstop3h 17m
Tue 10/65:31 pm -
Nonstop3h 18m
Deal found 9/4![Frontier logo]()
$177
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:30 pm -
Nonstop3h 16m
Sat 10/35:31 pm -
Nonstop3h 18m
Deal found 9/3![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 am -
1 stop5h 30m
Wed 10/76:15 am -
1 stop5h 48m
Deal found 9/3![Frontier logo]()
$179
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:22 pm -
Nonstop3h 17m
Tue 10/65:31 pm -
Nonstop3h 18m
Deal found 9/4![Frontier logo]()
$180
This Expedia deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:39 pm -
1 stop21h 50m
Thu 10/298:03 pm -
Nonstop3h 05m
Deal found 9/3![Frontier logo]()
$181
This FlightHub deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:00 am -
1 stop5h 35m
Fri 11/138:35 pm -
1 stop6h 43m
Deal found 9/4![Frontier logo]()
$182
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:58 pm -
Nonstop3h 18m
Thu 10/17:46 pm -
Nonstop3h 08m
Deal found 9/3![Frontier logo]()
$183
This Orbitz deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1710:03 pm -
1 stop13h 37m
Sun 11/226:08 pm -
Nonstop3h 07m
Deal found 9/4![Frontier logo]()
$184
This Frontier deal was found by Cheapflights users on 9/5. 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.
Fri 10/27:00 am -
1 stop5h 30m
Tue 10/65:31 pm -
Nonstop3h 18m
Deal found 9/5![Frontier logo]()
$185
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:40 pm -
Nonstop3h 10m
Wed 10/73:25 pm -
Nonstop2h 55m
Deal found 9/3![Southwest logo]()
$317
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 September 8, 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 September 8, 2026.
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:50 pm -
Nonstop3h 10m
Thu 10/296:40 am -
Nonstop2h 55m
Deal found 9/3![Southwest logo]()
$331
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:23 pm -
2 stops12h 17m
Mon 10/511:54 am -
1 stop9h 50m
Deal found 9/3![Delta logo]()
$342
This Alaska Airlines deal was found by Cheapflights users on 9/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:03 am -
2 stops13h 02m
Tue 10/2011:13 am -
1 stop17h 07m
Deal found 9/5![Alaska Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:00 pm -
1 stop5h 58m
Fri 10/21:24 pm -
1 stop5h 22m
Deal found 9/3![United Airlines logo]()
$441
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:30 am -
1 stop5h 50m
Sat 10/179:40 am -
2 stops7h 35m
Deal found 9/3![Southwest logo]()
$342
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:49 pm -
2 stops9h 54m
Fri 10/309:45 am -
2 stops12h 37m
Deal found 9/3![Delta logo]()
$376
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:20 am -
1 stop7h 05m
Tue 10/65:00 pm -
1 stop4h 20m
Deal found 9/3![Southwest logo]()
$346
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:03 am -
2 stops13h 02m
Sat 10/102:13 pm -
1 stop14h 07m
Deal found 9/7![Alaska Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:10 am -
2 stops11h 09m
Wed 12/211:57 am -
1 stop9h 54m
Deal found 9/3![Delta logo]()
$394
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:30 am -
1 stop5h 50m
Fri 10/301:05 pm -
2 stops6h 00m
Deal found 9/3![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:15 am -
2 stops9h 03m
Tue 10/61:22 pm -
1 stop5h 24m
Deal found 9/4![United Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:03 am -
1 stop19h 39m
Tue 10/206:02 am -
1 stop9h 09m
Deal found 9/7![Alaska Airlines logo]()
$442
This Delta deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:25 am -
2 stops10h 58m
Tue 10/2011:56 am -
1 stop10h 01m
Deal found 9/4![Delta logo]()
$466
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:00 am -
1 stop4h 45m
Wed 10/143:25 pm -
Nonstop2h 55m
Deal found 9/4![Southwest logo]()
$431
This Southwest deal was found by Cheapflights users on 9/6. 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.
Tue 9/2911:30 am -
Nonstop3h 00m
Tue 10/65:00 pm -
1 stop4h 20m
Deal found 9/6![Southwest logo]()
$440
This Southwest deal was found by Cheapflights users on 9/6. 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 2/198:25 pm -
Nonstop3h 15m
Mon 2/226:05 am -
Nonstop2h 45m
Deal found 9/6![Southwest logo]()
$445
This Southwest deal was found by Cheapflights users on 9/7. 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.
Fri 1/84:35 pm -
1 stop7h 10m
Fri 1/158:45 am -
1 stop4h 10m
Deal found 9/7![Southwest logo]()
$446
This Southwest deal was found by Cheapflights users on 9/7. 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 10/67:40 pm -
Nonstop3h 10m
Sat 10/109:40 am -
2 stops7h 35m
Deal found 9/7![Southwest logo]()
$449
This Southwest deal was found by Cheapflights users on 9/5. 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 11/69:05 pm -
Nonstop3h 05m
Tue 11/108:40 am -
2 stops6h 45m
Deal found 9/5![Southwest logo]()
$449
Last-minute flights from Dallas to OntarioDiscover last-minute flight deals from Dallas to Ontario. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Dallas to Ontario. Data last updated September 8, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:30 pm -
Nonstop3h 16m
Wed 9/2311:45 am -
1 stop19h 50m
Deal found 9/3![Frontier logo]()
$175
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:22 pm -
Nonstop3h 17m
Tue 10/65:31 pm -
Nonstop3h 18m
Deal found 9/4![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:30 pm -
Nonstop3h 16m
Sat 10/35:31 pm -
Nonstop3h 18m
Deal found 9/3![Frontier logo]()
$178
This Expedia deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:58 pm -
Nonstop3h 18m
Sat 10/311:45 am -
1 stop19h 50m
Deal found 9/3![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:58 pm -
Nonstop3h 18m
Thu 10/17:46 pm -
Nonstop3h 08m
Deal found 9/3![Frontier logo]()
$183
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:30 pm -
1 stop8h 05m
Sat 10/36:20 am -
Nonstop2h 55m
Deal found 9/3![Southwest logo]()
$327
This Frontier deal was found by Cheapflights users on 9/5. 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.
Fri 10/27:00 am -
1 stop5h 30m
Tue 10/65:31 pm -
Nonstop3h 18m
Deal found 9/5![Frontier logo]()
$185
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:22 pm -
Nonstop3h 17m
Tue 10/65:31 pm -
Nonstop3h 18m
Deal found 9/4![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 am -
1 stop5h 30m
Wed 10/76:15 am -
1 stop5h 48m
Deal found 9/3![Frontier logo]()
$179
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:40 pm -
Nonstop3h 10m
Wed 10/73:25 pm -
Nonstop2h 55m
Deal found 9/3![Southwest logo]()
$317
This Expedia deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:39 pm -
1 stop21h 50m
Thu 10/298:03 pm -
Nonstop3h 05m
Deal found 9/3![Frontier logo]()
$181
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:50 pm -
Nonstop3h 10m
Thu 10/296:40 am -
Nonstop2h 55m
Deal found 9/3![Southwest logo]()
$331
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 September 8, 2026.
Search for one-way flight options from Dallas to Ontario. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:30 am -
2 stops18h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$123
This Super.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:22 pm -
Nonstop3h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$124
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:00 am -
Nonstop3h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 9/6. 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 10/58:29 pm -
1 stop5h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$126
This Super.com deal was found by Cheapflights users on 9/5. 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 9/227:00 am -
1 stop5h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 9/5. 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.
Mon 11/168:27 pm -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$129
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:30 am -
1 stop6h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$130
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:29 pm -
1 stop5h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$131
This Booking.com deal was found by Cheapflights users on 9/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:30 am -
1 stop6h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$132
This Super.com deal was found by Cheapflights users on 9/7. 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.
Thu 10/88:20 pm -
1 stop25h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$133
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:40 am -
Nonstop3h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Southwest logo]()
$159
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:10 am -
2 stops6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Southwest logo]()
$169
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 September 8, 2026.
Round-trip from | $175 (CheapOair) |
|---|---|
One-way from | $123 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $298 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dallas to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Dallas to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Tue 10/6
6:03 am-1:16 pm
1 stop9h 13m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
DallasOntario
DAL Dallas Love Field - ONT Ontario
DALONT
Dallas Love Field
Wed 10/7
8:00 am-10:45 am
1 stop4h 45m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Mon 11/16
1:52 pm-11:49 pm
2 stops11h 57m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$184
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Mon 11/16
5:25 pm-9:40 pm
1 stop6h 15m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$214
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Sat 2/13
7:00 am-12:20 pm
1 stop7h 20m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$214
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Sat 2/13
5:45 pm-11:59 pm
1 stop8h 14m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$221
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Tue 2/9
12:35 pm-10:43 pm
2 stops12h 08m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$227
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Fri 12/4
8:36 pm-10:39 pm
1 stop28h 03m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$227
DallasOntario
DFW Dallas/Fort Worth - ONT Ontario
DFWONT
Dallas/Fort Worth
Sat 10/3
12:23 pm-10:40 pm
2 stops12h 17m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$227
DallasOntario
DAL Dallas Love Field - ONT Ontario
DALONT
Dallas Love Field
Thu 11/5
1:40 pm-4:40 pm
1 stop5h 00m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$232
Showing 1-10 of 38 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
DFW-ONT
DAL-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
DFW-ONT
DAL-ONT
What is the cheapest month to book a flight from Dallas to Ontario?
Currently, February is the cheapest month in which you can book a flight from Dallas to Ontario (average of $222). Flying from Dallas to Ontario in July is currently the most expensive (average of $371). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DFW to ONT?
Find hourly flight availability from Dallas to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 8, 2026.
When flying from Dallas to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 9% versus a flight at noon.
How much does it cost to fly round-trip from Dallas to Ontario?
Airfare is below average for this route at the moment.
Dallas to Ontario flights typically cost between $222 and $381 in September.The cheapest round-trip price found within the last 5 days was $175 on Frontier (Sep 22-Sep 23).
How far ahead should I book a flight from Dallas to Ontario?
The best time to book flights from Dallas to Ontario is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Dallas to Ontario?
Use this chart to determine the cheapest time to fly round-trip from Dallas to Ontario. Price data was last updated on September 5, 2026.
Travelers seeking maximum savings on their Dallas to Ontario flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Dallas to Ontario flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Dallas to Ontario trip
Our travel experts
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated September 8, 2026.
Read reviews from past customers who have flown Southwest,American Airlines, andFrontier from Dallas to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Ontario flight routes
Other flight options
Popular flights
Alternative routes for Dallas to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
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 September 8, 2026.
Dallas and Ontario flights
Browse other Dallas and Ontario flight options. Last updated on September 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Dallas to Ontario
Discover the top 3 airlines that operate flights from Dallas to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$92 | Average$264 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$193 | Average$390 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$204 | Average$395 | FlexibilityNo cancel fee | On-time63% |