$54+ Cheap flights from Arizona 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find cheap flights from Arizona 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.Cheap flight deals from Arizona to Ontario
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Cheapest flights from Arizona to OntarioExplore the most affordable flight options available from Arizona to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
Explore the most affordable flight options available from Arizona to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
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.
Sat 12/512:35 pm -
Nonstop1h 08m
Mon 12/710:32 pm -
Nonstop1h 04m
Deal found 9/4![Frontier logo]()
$54
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 12/65:10 am -
Nonstop1h 05m
Mon 12/710:32 pm -
Nonstop1h 04m
Deal found 9/4![Frontier logo]()
$69
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.
Sat 12/512:35 pm -
Nonstop1h 08m
Wed 12/910:32 pm -
Nonstop1h 04m
Deal found 9/4![Frontier logo]()
$88
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:00 am -
Nonstop1h 09m
Mon 10/58:24 pm -
Nonstop1h 11m
Deal found 9/4![Frontier logo]()
$89
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.
Wed 10/78:00 am -
Nonstop1h 09m
Wed 10/72:30 pm -
Nonstop1h 10m
Deal found 9/7![Frontier logo]()
$90
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:45 pm -
Nonstop1h 14m
Mon 9/288:24 pm -
Nonstop1h 11m
Deal found 9/5![Frontier logo]()
$91
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:00 am -
Nonstop1h 05m
Tue 11/1010:35 am -
Nonstop1h 07m
Deal found 9/5![Frontier logo]()
$93
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:20 pm -
Nonstop1h 10m
Wed 10/2111:26 am -
Nonstop1h 11m
Deal found 9/4![Frontier logo]()
$94
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.
Sat 12/512:35 pm -
Nonstop1h 08m
Thu 12/1010:05 am -
Nonstop1h 07m
Deal found 9/4![Frontier logo]()
$100
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/75:10 am -
Nonstop1h 05m
Thu 12/179:59 pm -
Nonstop1h 12m
Deal found 9/6![Frontier logo]()
$101
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:20 pm -
Nonstop1h 14m
Tue 10/135:25 pm -
Nonstop1h 13m
Deal found 9/7![Frontier logo]()
$102
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:46 am -
Nonstop1h 20m
Thu 10/84:29 pm -
Nonstop1h 23m
Deal found 9/3![American Airlines logo]()
$117
Best flights from Arizona to OntarioDiscover carefully curated flight deals from Arizona to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Arizona to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sat 10/107:45 am -
Nonstop1h 15m
Thu 10/155:20 am -
Nonstop1h 15m
Deal found 9/2![Southwest logo]()
$117
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:22 pm -
1 stop6h 14m
Thu 10/811:52 am -
1 stop11h 56m
Deal found 9/2![Frontier logo]()
$118
This Southwest deal was found by Cheapflights users on 9/2. 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.
Thu 10/228:10 pm -
Nonstop1h 15m
Tue 10/272:00 pm -
1 stop6h 05m
Deal found 9/2![Southwest logo]()
$127
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:07 pm -
1 stop5h 44m
Tue 10/131:52 pm -
1 stop4h 39m
Deal found 9/7![United Airlines logo]()
$289
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:45 am -
1 stop8h 15m
Sun 10/256:02 am -
1 stop10h 09m
Deal found 9/6![Alaska Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 9/2. 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.
Fri 11/207:45 am -
Nonstop1h 15m
Mon 11/234:00 pm -
Nonstop1h 20m
Deal found 9/2![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 9/2. 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 11/245:00 pm -
1 stop4h 55m
Fri 11/275:00 am -
Nonstop1h 15m
Deal found 9/2![Southwest logo]()
$199
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.
Sat 10/317:45 am -
Nonstop1h 05m
Sat 10/3111:30 am -
2 stops6h 30m
Deal found 9/6![Southwest logo]()
$212
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:49 am -
1 stop5h 17m
Sat 9/196:15 am -
1 stop4h 58m
Deal found 9/5![American Airlines logo]()
$597
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:10 pm -
1 stop5h 41m
Sun 11/15:00 am -
1 stop5h 41m
Deal found 9/6![United Airlines logo]()
$324
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 11/118:05 am -
1 stop4h 45m
Thu 11/1211:20 am -
2 stops5h 10m
Deal found 9/4![Southwest logo]()
$222
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:59 pm -
1 stop13h 18m
Mon 11/27:13 pm -
1 stop15h 41m
Deal found 9/6![Alaska Airlines logo]()
$343
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.
Mon 10/52:30 pm -
Nonstop1h 20m
Mon 10/126:55 pm -
Nonstop1h 15m
Deal found 9/5![Southwest logo]()
$227
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 9/255:15 am -
1 stop7h 31m
Wed 9/305:00 am -
1 stop5h 41m
Deal found 9/4![United Airlines logo]()
$338
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/23:12 pm -
1 stop22h 04m
Mon 10/52:13 pm -
1 stop7h 48m
Deal found 9/6![Alaska Airlines logo]()
$343
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 10/1610:10 am -
Nonstop1h 15m
Mon 10/196:55 pm -
Nonstop1h 15m
Deal found 9/5![Southwest logo]()
$227
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.
Thu 10/85:10 pm -
1 stop5h 05m
Mon 10/121:05 pm -
Nonstop1h 15m
Deal found 9/6![Southwest logo]()
$237
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/23:12 pm -
1 stop22h 04m
Sun 10/46:02 am -
1 stop15h 59m
Deal found 9/6![Alaska Airlines logo]()
$383
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 10/167:50 am -
Nonstop1h 15m
Sat 10/173:10 pm -
1 stop5h 00m
Deal found 9/6![Southwest logo]()
$237
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 10/148:10 am -
2 stops5h 15m
Wed 11/1810:05 am -
1 stop5h 05m
Deal found 9/3![Southwest logo]()
$240
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/18:10 am -
1 stop15h 29m
Wed 12/26:00 am -
1 stop15h 26m
Deal found 9/4![Alaska Airlines logo]()
$483
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.
Sat 10/311:25 am -
1 stop4h 35m
Sat 10/104:40 pm -
Nonstop1h 20m
Deal found 9/5![Southwest logo]()
$261
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.
Thu 10/14:30 pm -
1 stop5h 45m
Mon 10/51:05 pm -
Nonstop1h 15m
Deal found 9/4![Southwest logo]()
$261
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 10/95:45 am -
1 stop3h 20m
Fri 10/97:05 pm -
1 stop3h 30m
Deal found 9/5![Southwest logo]()
$264
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.
Wed 11/257:45 am -
1 stop5h 20m
Thu 11/267:25 am -
2 stops5h 50m
Deal found 9/5![Southwest logo]()
$306
This Southwest deal was found by Cheapflights users on 9/2. 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.
Thu 11/56:10 pm -
1 stop2h 45m
Sat 11/71:25 pm -
1 stop3h 40m
Deal found 9/2![Southwest logo]()
$310
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 11/246:05 pm -
2 stops5h 20m
Wed 11/254:25 pm -
1 stop4h 10m
Deal found 9/4![Southwest logo]()
$325
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 9/255:10 am -
1 stop6h 15m
Tue 9/291:10 pm -
2 stops6h 00m
Deal found 9/3![Southwest logo]()
$336
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 10/94:55 pm -
2 stops5h 15m
Sat 10/109:25 am -
2 stops6h 05m
Deal found 9/6![Southwest logo]()
$349
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.
Thu 10/83:00 pm -
1 stop7h 20m
Sat 10/1011:30 am -
2 stops8h 05m
Deal found 9/6![Southwest logo]()
$380
Last-minute flights from Arizona to OntarioDiscover last-minute flight deals from Arizona to Ontario. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Arizona to Ontario. Data last updated September 7, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/2. 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.
Fri 9/258:55 pm -
Nonstop1h 10m
Mon 9/288:40 pm -
Nonstop1h 20m
Deal found 9/2![Southwest logo]()
$134
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:46 am -
Nonstop1h 20m
Thu 10/84:29 pm -
Nonstop1h 23m
Deal found 9/3![American Airlines logo]()
$117
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.
Thu 10/11:22 pm -
1 stop6h 14m
Thu 10/81:38 pm -
1 stop4h 55m
Deal found 9/3![Frontier logo]()
$118
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 10/110:10 am -
Nonstop1h 15m
Thu 10/83:55 pm -
1 stop4h 15m
Deal found 9/3![Southwest logo]()
$127
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 10/38:30 am -
1 stop8h 04m
Mon 10/58:00 am -
1 stop14h 47m
Deal found 9/3![Frontier logo]()
$119
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:25 am -
1 stop28h 05m
Sat 10/1010:04 am -
1 stop8h 29m
Deal found 9/3![Frontier logo]()
$136
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:39 pm -
1 stop20h 20m
Mon 10/128:35 pm -
1 stop15h 42m
Deal found 9/4![Frontier logo]()
$138
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:16 am -
1 stop8h 14m
Tue 10/1311:26 am -
1 stop4h 03m
Deal found 9/4![Frontier logo]()
$133
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.
Mon 10/127:38 pm -
1 stop20h 52m
Thu 10/158:35 pm -
1 stop15h 42m
Deal found 9/3![Frontier logo]()
$130
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:21 am -
1 stop11h 19m
Mon 10/192:28 pm -
1 stop8h 50m
Deal found 9/2![Frontier logo]()
$135
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.
Tue 10/277:30 am -
1 stop26h 10m
Tue 11/310:35 am -
1 stop6h 51m
Deal found 9/4![Frontier logo]()
$141
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 10/318:35 am -
2 stops7h 15m
Thu 11/55:20 pm -
Nonstop1h 20m
Deal found 9/4![Southwest logo]()
$132
One-way flights from Arizona to OntarioSearch for one-way flight options from Arizona to Ontario. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Arizona to Ontario. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
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.
Wed 9/239:20 am -
1 stop8h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$58
This Southwest deal was found by Cheapflights users on 9/2. 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 9/307:45 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Southwest logo]()
$59
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.
Tue 9/298:30 am -
1 stop8h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$63
This Super.com deal was found by Cheapflights users on 9/2. 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.
Thu 10/88:16 am -
1 stop8h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$64
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:30 am -
1 stop8h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$65
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:24 pm -
1 stop11h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$68
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.
Mon 11/236:00 am -
Nonstop1h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$68
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:23 pm -
1 stop15h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$69
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.
Thu 11/123:46 pm -
1 stop19h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$70
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:35 pm -
1 stop26h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$71
This Super.com deal was found by Cheapflights users on 9/2. 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.
Mon 10/266:00 am -
Nonstop1h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$72
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.
Thu 11/510:05 am -
Nonstop1h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$73
Find flight deals from Arizona to Ontario
Keep the following information in mind while searching for Arizona to Ontario flight deals. Data was last updated September 7, 2026.
Round-trip from | $54 (Frontier) |
|---|---|
Popular in | August |
Cheapest in | January |
Average price | $175 |
Good round-trip deal | $151 or less |
Good one-way deal | $103 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Arizona 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 7, 2026.
Use the filters below to find and compare flights from Arizona to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Mon 10/12
10:35 pm-11:50 pm
Nonstop1h 15m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$59
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Wed 11/11
11:45 am-12:10 pm
Nonstop1h 25m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$59
Quickest round-trip
Las VegasOntario
LAS Las Vegas Harry Reid Intl - ONT Ontario
LASONT
Las Vegas Harry Reid Intl
Sun 10/25
8:00 am-9:05 am
Nonstop1h 05m
Ontario
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$90
Las VegasOntario
LAS Las Vegas Harry Reid Intl - ONT Ontario
LASONT
Las Vegas Harry Reid Intl
Thu 11/5
7:15 am-12:05 pm
1 stop4h 50m
Ontario
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$100
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Sat 10/10
7:45 am-9:00 am
Nonstop1h 15m
Ontario
Thu 10/15
5:20 am-6:35 am
Nonstop1h 15m
$117
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Mon 10/19
1:12 pm-7:40 pm
2 stops6h 28m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$118
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Mon 10/5
1:22 pm-7:36 pm
1 stop6h 14m
Ontario
Thu 10/8
11:52 am-11:48 pm
1 stop11h 56m
$118
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Thu 10/1
7:00 am-12:18 pm
1 stop5h 18m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$121
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Wed 9/30
3:30 pm-8:58 pm
1 stop5h 28m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$121
PhoenixOntario
PHX Phoenix Sky Harbor Intl - ONT Ontario
PHXONT
Phoenix Sky Harbor Intl
Thu 9/24
7:00 am-12:18 pm
1 stop5h 18m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$121
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Arizona to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Arizona with our price prediction graph.
PHX-ONT
LAS-ONT
TUS-ONT
FLG-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 Arizona to Ontario
USAZ-ONT
PHX-ONT
LAS-ONT
TUS-ONT
FLG-ONT
What is the cheapest month to book a flight from Arizona to Ontario?
Currently, September is the cheapest month in which you can book a flight from Arizona to Ontario (average of $219). Flying from Arizona to Ontario in July is currently the most expensive (average of $354). 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 AZ to ONT?
Find hourly flight availability from Arizona 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 7, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 31% on flights from Arizona to Ontario by exploring options for tickets at noon.
How much does it cost to fly round-trip from Arizona to Ontario?
Airfare is below average for this route at the moment.
Arizona to Ontario flights typically cost between $154 and $342 in October.The cheapest round-trip price found within the last 5 days was $117 on American Airlines (Oct 1-Oct 8).
How far ahead should I book a flight from Arizona to Ontario?
Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from Arizona to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Arizona to Ontario?
Use this chart to determine the cheapest time to fly round-trip from Arizona to Ontario. Price data was last updated on September 5, 2026.
Travelers seeking maximum savings on their Arizona to Ontario flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Arizona 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
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Ontario flight routes
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Popular flights
Top destinations
Alternative routes for Arizona 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 Arizona to Ontario by cabin class
Find flights from Arizona 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 7, 2026.
Arizona and Ontario flights
Browse other Arizona and Ontario flight options. Last updated on September 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Arizona to Ontario flights
Consider these flights traveling from Arizona to Ontario.
Top 4 airlines flying from Arizona to Ontario
Discover the top 4 airlines that operate flights from Arizona 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 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$84 | Average$179 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$105 | Average$340 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$117 | Average$320 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$192 | Average$452 | FlexibilityNo cancel fee | On-time62% |