$119+ Cheap flights from Dallas to Ontario (ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ONT
Jul 6 — Jul 131
Round-trip
1 adult, Economy
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Find cheap flights from Dallas to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Dallas to Ontario are usually found in September or August, booked 87 days in advance, depart on a Thursday or Tuesday and return on a Thursday
Cheap flight deals from Dallas to Ontario
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Last-minute
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Cheapest flights from Dallas to OntarioExplore the most affordable flight options available from Dallas to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 6, 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 June 6, 2026.
This CheapOair deal was found by Cheapflights users on 6/3. 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 7/217:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Sun 7/266:00 am
ONT
- DFW
1 stop24h 09m
Frontier
Deal found 6/3![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 8/47:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Tue 8/1810:50 am
ONT
- DFW
1 stop8h 36m
Frontier
Deal found 6/2![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/3010:59 pm
DFW
- ONT
1 stop18h 09m
Frontier
Tue 7/143:40 pm
ONT
- DFW
1 stop17h 17m
Frontier
Deal found 6/3![Frontier logo]()
$206
This Frontier deal was found by Cheapflights users on 6/3. 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 10/136:00 am
DFW
- ONT
Nonstop3h 12m
Frontier
Tue 10/208:07 am
ONT
- DFW
Nonstop3h 05m
Frontier
Deal found 6/3![Frontier logo]()
$208
This Frontier deal was found by Cheapflights users on 6/3. 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.
Fri 7/33:35 pm
DFW
- ONT
Nonstop3h 13m
Frontier
Tue 7/148:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/3![Frontier logo]()
$210
This Gotogate deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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.
Sat 8/18:59 pm
DFW
- ONT
1 stop16h 08m
Frontier
Sat 8/88:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/2![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/79:31 pm
DFW
- ONT
1 stop14h 33m
Frontier
Tue 7/143:40 pm
ONT
- DFW
1 stop12h 03m
Frontier
Deal found 6/2![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 6/3. 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 7/77:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Thu 7/98:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/3![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/287:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Tue 8/118:58 am
ONT
- DFW
1 stop19h 07m
Frontier
Deal found 6/2![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Tue 7/213:40 pm
ONT
- DFW
2 stops14h 29m
Frontier
Deal found 6/4![Frontier logo]()
$218
This Frontier deal was found by Cheapflights users on 6/3. 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.
Thu 7/23:35 pm
DFW
- ONT
Nonstop3h 13m
Frontier
Wed 7/158:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/3![Frontier logo]()
$219
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 8/511:30 am
DAL
- ONT
Nonstop3h 00m
Southwest
Tue 8/112:15 pm
ONT
- DAL
Nonstop3h 00m
Southwest
Deal found 6/1![Southwest logo]()
$367
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 June 6, 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 June 6, 2026.
This Booking.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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.
Wed 8/266:55 pm
DFW
- ONT
1 stop17h 10m
Frontier
Tue 9/16:47 pm
ONT
- DFW
Nonstop3h 12m
Frontier
Deal found 6/1![Frontier logo]()
$256
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 8/55:15 pm
DAL
- ONT
2 stops5h 40m
Southwest
Tue 8/111:50 pm
ONT
- DAL
1 stop5h 20m
Southwest
Deal found 6/1![Southwest logo]()
$392
This Delta deal was found by Cheapflights users on 6/4. 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 6/307:45 am
DFW
- ONT
1 stop6h 25m
Delta
Wed 7/89:40 am
ONT
- DFW
2 stops12h 19m
Delta
Deal found 6/4![Delta logo]()
$416
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 8/14:52 pm
DFW
- ONT
1 stop5h 50m
United Airlines
Tue 8/45:00 am
ONT
- DFW
2 stops10h 46m
United Airlines
Deal found 6/2![United Airlines logo]()
$436
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 7/312:25 pm
DAL
- ONT
Nonstop3h 00m
Southwest
Wed 8/127:45 am
ONT
- DAL
1 stop5h 40m
Southwest
Deal found 6/1![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/2112:30 pm
DFW
- ONT
2 stops12h 22m
Delta
Mon 7/276:00 am
ONT
- DFW
2 stops11h 04m
Delta
Deal found 6/2![Delta logo]()
$427
This Southwest deal was found by Cheapflights users on 6/5. 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.
Tue 7/141:35 pm
DAL
- ONT
2 stops5h 30m
Southwest
Tue 7/211:05 pm
ONT
- DAL
1 stop5h 05m
Southwest
Deal found 6/5![Southwest logo]()
$402
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:45 pm
DFW
- ONT
2 stops12h 03m
Delta
Tue 7/216:00 am
ONT
- DFW
2 stops11h 04m
Delta
Deal found 6/5![Delta logo]()
$431
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:55 pm
DAL
- ONT
2 stops6h 10m
Southwest
Wed 7/291:05 pm
ONT
- DAL
1 stop5h 05m
Southwest
Deal found 6/5![Southwest logo]()
$406
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/241:24 pm
DFW
- ONT
2 stops12h 24m
Delta
Tue 7/281:00 pm
ONT
- DFW
1 stop6h 23m
Delta
Deal found 6/5![Delta logo]()
$448
This Southwest deal was found by Cheapflights users on 6/4. 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 6/308:20 pm
DAL
- ONT
1 stop4h 40m
Southwest
Tue 7/141:05 pm
ONT
- DAL
1 stop7h 10m
Southwest
Deal found 6/4![Southwest logo]()
$411
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 7/221:24 pm
DFW
- ONT
2 stops12h 24m
Delta
Sun 7/261:00 pm
ONT
- DFW
1 stop6h 23m
Delta
Deal found 6/1![Delta logo]()
$453
This Southwest deal was found by Cheapflights users on 6/4. 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 8/152:55 pm
DAL
- ONT
Nonstop3h 05m
Southwest
Mon 8/177:00 am
ONT
- DAL
Nonstop3h 00m
Southwest
Deal found 6/4![Southwest logo]()
$413
This Delta deal was found by Cheapflights users on 6/3. 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.
Tue 7/211:45 pm
DFW
- ONT
2 stops12h 03m
Delta
Sun 7/266:00 am
ONT
- DFW
1 stop5h 30m
Delta
Deal found 6/3![Delta logo]()
$453
This Southwest deal was found by Cheapflights users on 6/4. 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 7/71:35 pm
DAL
- ONT
2 stops5h 30m
Southwest
Mon 7/132:00 pm
ONT
- DAL
1 stop5h 15m
Southwest
Deal found 6/4![Southwest logo]()
$418
This Delta deal was found by Cheapflights users on 6/6. 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 7/247:35 am
DFW
- ONT
2 stops10h 55m
Delta
Mon 7/279:40 am
ONT
- DFW
2 stops12h 19m
Delta
Deal found 6/6![Delta logo]()
$459
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/221:35 pm
DAL
- ONT
2 stops5h 30m
Southwest
Thu 7/3011:55 pm
ONT
- DAL
1 stop7h 05m
Southwest
Deal found 6/5![Southwest logo]()
$418
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 8/45:15 pm
DAL
- ONT
2 stops5h 40m
Southwest
Tue 8/1810:55 am
ONT
- DAL
2 stops6h 30m
Southwest
Deal found 6/2![Southwest logo]()
$421
This Delta deal was found by Cheapflights users on 6/4. 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.
Sat 7/183:00 pm
DFW
- ONT
2 stops9h 23m
Delta
Sat 8/16:00 am
ONT
- DFW
1 stop5h 30m
Delta
Deal found 6/4![Delta logo]()
$480
This Southwest deal was found by Cheapflights users on 6/6. 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.
Wed 7/156:55 pm
DAL
- ONT
2 stops6h 10m
Southwest
Mon 7/208:00 am
ONT
- DAL
2 stops5h 50m
Southwest
Deal found 6/6![Southwest logo]()
$422
This Delta deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/311:45 pm
DFW
- ONT
2 stops12h 03m
Delta
Mon 8/36:00 am
ONT
- DFW
1 stop5h 30m
Delta
Deal found 6/2![Delta logo]()
$496
This Southwest deal was found by Cheapflights users on 6/3. 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 9/310:00 am
DAL
- ONT
2 stops7h 05m
Southwest
Wed 9/97:00 am
ONT
- DAL
1 stop6h 45m
Southwest
Deal found 6/3![Southwest logo]()
$422
Last-minute flights from Dallas to OntarioDiscover last-minute flight deals from Dallas to Ontario. Data last updated June 6, 2026 and is based on user searches.
Discover last-minute flight deals from Dallas to Ontario. Data last updated June 6, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:59 pm
DFW
- ONT
1 stop22h 52m
Frontier
Mon 8/108:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/4![Frontier logo]()
$221
This Super.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 6/243:35 pm
DFW
- ONT
Nonstop3h 13m
Frontier
Wed 7/16:47 pm
ONT
- DFW
Nonstop3h 12m
Frontier
Deal found 6/2![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 6/3010:59 pm
DFW
- ONT
1 stop18h 09m
Frontier
Tue 7/143:40 pm
ONT
- DFW
1 stop17h 17m
Frontier
Deal found 6/3![Frontier logo]()
$206
This Frontier deal was found by Cheapflights users on 6/3. 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.
Thu 7/23:35 pm
DFW
- ONT
Nonstop3h 13m
Frontier
Wed 7/158:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/3![Frontier logo]()
$219
This Frontier deal was found by Cheapflights users on 6/3. 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.
Fri 7/33:35 pm
DFW
- ONT
Nonstop3h 13m
Frontier
Tue 7/148:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/3![Frontier logo]()
$210
This Frontier deal was found by Cheapflights users on 6/3. 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 7/77:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Fri 7/178:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/3![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/79:31 pm
DFW
- ONT
1 stop14h 33m
Frontier
Tue 7/143:40 pm
ONT
- DFW
1 stop12h 03m
Frontier
Deal found 6/2![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 6/3. 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 7/77:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Thu 7/98:17 am
ONT
- DFW
Nonstop3h 14m
Frontier
Deal found 6/3![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Tue 7/213:40 pm
ONT
- DFW
2 stops14h 29m
Frontier
Deal found 6/4![Frontier logo]()
$218
This CheapOair deal was found by Cheapflights users on 6/3. 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 7/217:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Sun 7/266:00 am
ONT
- DFW
1 stop24h 09m
Frontier
Deal found 6/3![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/287:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Tue 8/118:58 am
ONT
- DFW
1 stop19h 07m
Frontier
Deal found 6/2![Frontier logo]()
$217
This Southwest deal was found by Cheapflights users on 6/5. 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.
Tue 7/281:55 pm
DAL
- ONT
Nonstop3h 00m
Southwest
Tue 8/112:15 pm
ONT
- DAL
Nonstop3h 00m
Southwest
Deal found 6/5![Southwest logo]()
$371
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 June 6, 2026.
Search for one-way flight options from Dallas to Ontario. Find affordable one-way fares based on user searches. Data last updated June 6, 2026.
This Super.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/110:59 pm
DFW
- ONT
1 stop18h 09m
Frontier
Deal found 6/3![Frontier logo]()
$119
This Frontier deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/214:30 pm
DFW
- ONT
1 stop9h 20m
Frontier
Deal found 6/4![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Mon 8/1710:51 pm
DFW
- ONT
1 stop18h 18m
Frontier
Deal found 6/3![Frontier logo]()
$124
This Trip.com deal was found by Cheapflights users on 6/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:58 pm
DFW
- ONT
1 stop6h 52m
Frontier
Deal found 6/6![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:18 am
DFW
- ONT
1 stop6h 46m
Frontier
Deal found 6/4![Frontier logo]()
$126
This Super.com deal was found by Cheapflights users on 6/3. 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.
Sat 8/112:02 pm
DFW
- ONT
1 stop5h 12m
Frontier
Deal found 6/3![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 6/3010:20 pm
DFW
- ONT
2 stops23h 31m
Frontier
Deal found 6/2![Frontier logo]()
$130
This Super.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:31 am
DFW
- ONT
Nonstop3h 06m
Frontier
Deal found 6/4![Frontier logo]()
$131
This Southwest deal was found by Cheapflights users on 6/6. 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.
Wed 9/211:30 am
DAL
- ONT
Nonstop3h 00m
Southwest
Deal found 6/6![Southwest logo]()
$186
This Southwest deal was found by Cheapflights users on 6/6. 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.
Sat 7/111:50 pm
DAL
- ONT
1 stop4h 30m
Southwest
Deal found 6/6![Southwest logo]()
$191
This Southwest deal was found by Cheapflights users on 6/6. 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 7/71:35 pm
DAL
- ONT
2 stops5h 30m
Southwest
Deal found 6/6![Southwest logo]()
$196
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/11:55 pm
DAL
- ONT
Nonstop3h 00m
Southwest
Deal found 6/2![Southwest logo]()
$200
Find flight deals from Dallas to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 6, 2026.
Round-trip from | $204 (CheapOair) |
|---|---|
One-way from | $119 (Super.com) |
Popular in | April |
Cheapest in | September |
Average price | $256 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dallas to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 6, 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 - ONT
DFWONT
Dallas/Fort Worth
Wed 8/26
6:55 pm-10:05 am
1 stop17h 10m
Ontario
Tue 9/1
6:47 pm-11:59 pm
Nonstop3h 12m
$256
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Wed 8/5
5:15 pm-8:55 pm
2 stops5h 40m
Ontario
Tue 8/11
1:50 pm-9:10 pm
1 stop5h 20m
$392
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Fri 7/31
2:25 pm-3:25 pm
Nonstop3h 00m
Ontario
Wed 8/12
7:45 am-3:25 pm
1 stop5h 40m
$395
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Tue 7/14
1:35 pm-5:05 pm
2 stops5h 30m
Ontario
Tue 7/21
1:05 pm-8:10 pm
1 stop5h 05m
$402
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Wed 7/15
6:55 pm-11:05 pm
2 stops6h 10m
Ontario
Wed 7/29
1:05 pm-8:10 pm
1 stop5h 05m
$406
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Tue 6/30
8:20 pm-11:00 pm
1 stop4h 40m
Ontario
Tue 7/14
1:05 pm-10:15 pm
1 stop7h 10m
$411
Quickest round-trip
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Sat 8/15
2:55 pm-4:00 pm
Nonstop3h 05m
Ontario
Mon 8/17
7:00 am-12:00 pm
Nonstop3h 00m
$413
DallasOntario
DFW - ONT
DFWONT
Dallas/Fort Worth
Tue 6/30
7:45 am-12:10 pm
1 stop6h 25m
Ontario
Wed 7/8
9:40 am-11:59 pm
2 stops12h 19m
$416
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Tue 7/7
1:35 pm-5:05 pm
2 stops5h 30m
Ontario
Mon 7/13
2:00 pm-9:15 pm
1 stop5h 15m
$418
DallasOntario
DAL - ONT
DALONT
Dallas Love Field
Wed 7/22
1:35 pm-5:05 pm
2 stops5h 30m
Ontario
Thu 7/30
11:55 pm-9:00 am
1 stop7h 05m
$418
Showing 1-10 of 42 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 $33). Flying from Dallas to Ontario in June is currently the most expensive (average of $141). 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 June 6, 2026.
When flying from Dallas to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 20% versus a flight in the morning.
Weekly flight availability from Dallas to Ontario
Explore weekly flight availability from Dallas to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 6, 2026.
The most flights from A78 to ONT are scheduled on a Wednesday (18 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (14 on average).
How much does it cost to fly round-trip from Dallas to Ontario?
How far ahead should I book a flight from Dallas to Ontario?
The best time to book flights from Dallas to Ontario is 85 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 May 30, 2026.
Travelers seeking maximum savings on their Dallas to Ontario flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 June 6, 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.
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
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.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Dallas to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Dallas to Ontario by cabin class
Find flights from Dallas to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 6, 2026.
Dallas and Ontario flights
Browse other Dallas and Ontario flight options. Last updated on June 6, 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 2,558,603 searches. Data last updated June 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$82 | Average$230 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$371 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$163 | Average$344 | FlexibilityNo cancel fee | On-time71% |